Peer-reviewed papers

*postdoc, **graduate student, ***undergraduate student
(denotes at the time the data were collected)

[for citations of papers, see Google Scholar account]

In review or revision

237. Neigel, ER, Norris, DR, Moehrenschlager, A, Hunt, N & McCune, JL. Testing the efficacy of species distribution and plant community-based models to select suitable sites for rare plant translocations. In review: Biological Conservation

236. Wiedenfeld, AE, Norris, DR, Moehrenschlager, A, Cherpin, C, McCune, JL. Environmental drivers at the local and landscape scale influence the demographics of two plant species at risk. In review: American Journal of Botany

235. Gomez, C, Bayly, NJ, Mackenzie, SA, English, SG, Morales-Rozo, A, Taylor, PD, Norris, DR, Hobson KA & Wilson, S. The geography of risk: Motus telemetry reveals spatial variation in mortality of Blackpoll warblers during pre-breeding migration. Revised & resubmitted: Ornithology

234. Lee, JYL***, Chu, JJ**, Pyott, ML**, Gow, EA & Norris, DR. Estimated road-crossing mortality risk for owned outdoor cats in southwestern Ontario, Canada. In review: Veterinary Record

233. Dobney, S, Norris, DR, Williams, H, Doucet, S, Burant, JB**, Moran, IG, Mueller, SD**, Spina, HA**, Thomas, IP, Burg, TM & Mennill, DJ. Male vocal ornaments, age, and density influence male social and genetic reproductive success in a grassland songbird. In revision: Animal Behaviour

232. Siemens, AL**, Strickland, D, Green, DJ & Norris, DR. Sex and tenure influence rank within steep linear social hierarchies of Canada Jays on Vancouver Island. In review: Behavioural Ecology and Sociobiology

231. Mueller, SD**, Wheelwright, NT, Mennill, DJ, Newman, AEM, Doucet, SM, Burant, JB**, Dobney, SL, Mitchell, GW**, Spina, HA**, Woodworth, BK** & Norris, DR. Experimental evidence and long-term monitoring show reproductive success does not drive population growth of a songbird. In revision: Ecology

230. Kilgour, RJ, Norris, DR, Flockhart DTT, Gow, EA, Jardine, C, Niel, L, Spence, K, Ziter, K & Webber, QMR. A One Health framework to address problems surrounding urban outdoor cats. In revision: Ambio

229. Burant, JB**, Chicalo, R**, Williams, EJ, Phillips, L, Fuirst, M** & Norris, DR. Incubation behavior of a boreal, food-caching passerine nestling in sub-zero temperatures. In revision: Ibis
[posted on EcoEvoRxiv]

228. Custode, LB**, Pither, R, & Norris, DR. A graph theory approach to describing protected area connectivity in Canada. In revision: Conservation Science and Practice

227. Brlik, V*, Norris, DR, Porkert, J, Trnka, A, Mikula, P, Vondrovicova, L, Trubac, J & Prochazka, P. Extensive individual variation in niche position between seasons in migratory birds. In revision: Basic and Applied Ecology

2026

226. Mueller, SD**, Mennill, DJ, Doucet, SM, Dobney, SL, Spina, HA** & Norris, DR. 2026. Weather and local density influence post-fledging survival of a migratory songbird. In press: Journal of Avian Biology

225. Brlík, V*, Procházka, P, Rushing, CS, Storch, D, Schmaljohann, H, Bulla, M, Skinner, AA, Jahn, AE, Paules Nelson, AR, Hedenström, A, Romano, A, Sharp, AJ, Barras, AG, Wellbrock, AHJ, Hegemann, A, Tieleman, BI, Czyź, B, Hansson, B, Van Doren, BM, Dossman, BC, Scandolara, C, Hewson, C, Both, C, Turcotte-van de Rydt, C, Barger, CP, Tonra, C. Irwin, D. Ćiković, D, Arlt, D, Hasselquist, D, Parejo Mora, D, de Zwaan, DR, Rubolini, D, Tuero, DT, Kishkinev, D, Bridge, ES, Gow, EA*, Liechti, F, Bairlein, F, Bell, F, Jiguet, F, Norevik, G, Baudrin, G, Kramer, GR, Justen, H, van der Jeugd, H, Streby, HM, Ouwehand, J, Koleček, J, Hill, JM, Ross, JD, Partecke, J, Avilés, JM, Costa, JS, Alves, JA, Burant, JB**, Hagelin, JC, Thorup, K, Snell, KRS, Hobson, KA, Fraser, KC, Kardynal, KJ, Savides, K, Delmore, KE, Witte, K, Sokolovskis, K, Mancuso, KA, Smith, L, Neufeld, LR, Hałupka, L, Remisiewicz, M, Burgess, MD, Sander, MM, Buchmann, M, Flade, M, Briedis, M, Hallworth, MT, Ward, MP, Krist, M, Liedvogel, M, Cooper, NW, Perlut, NG, Tomášek, O, Cimprich, P, Adamik, P, Marra, PP, Klvaňa, P, Bernardy, P, English, PA, Matyjasiak, P, Arlettaz, R, Cormier, RL, Hedley, RW, Patchett, R, Ambrosini, R, Renfrew, R, Assadi, SB, Barišić, S, Fischer, SE, Bensch, S, Hahn, S, Bravo, SP, Åkesson, S, Emmenegger, T, Curk, T, Albrecht, T, Pärt, T, Laaksonen, T, Cueto, VR, Salewski, V, Heim, W, Cresswell, W, DeLuca, WV, Rime, Y, Yamaura, Y, Norris, DR. Temporal links in avian migration schedules across the annual cycle. In press Nature Ecology & Evolution

224. Kroze, SL, Otis, GW, Linton, JE, Norris, DR, Westwood, R., Brewster, A, Keyghobadi, N. 2026. Population genetic analysis of the endangered Mottled Duskywing butterfly (Erynnis martialis) informs species reintroduction. In press: Insect Diversity and Conservation

223. Taff, CC, Shipley, JR, Ardia, DR, Aborn, D, Albert, L, Bélisle, M, Belmaker, A, Berzins, L, Blake, T, Bonier, F, Brewer, HC, Butler, MW, Cameron, K, Case, SB, Chang van Oordt, D, Clark, RG, Clotfelter, ED, Cox, AR, Dawson, RD, Derryberry, EP, Diaz Bohorquez, AM, Dunn, P, Ferretti, V, Forsman, AM, Fuirst, M, Garant, D, Garrett, DR, Gutiérrez, J, Hagelin, JC, Hardt, BM, Harris, ME, Horton, K, Houle, C, Houtz, JL, Jones, PL, Jordan, KC, Kindel, AS, Klaver, R, Knutie, SA, Lauck, KS, Lombardo, MP, Lougheed, SC, Love, AC, Mackenzie, SA, McCarty, JP, McKellar, AE, Mejia, N, Morrissey, CA, Nahom, ML, Norris, DR, Para, LM, Pelletier, F, Porter, CK, Rendell, WB, Riddell, EA, Rivers, J, Robertson, RJ, Rose, A, Rosvall, KA, Ryan, TA, Shannon, RP, Shutler, D, Simons, VF, Stanback, M, Tarwater, CE, Thorpe, PA, Tingley, MW, Tischer, CL, Tonelli, BA, Truan, ML, Twining, CW, Uehling, JJ, Vleck, C, Vleck, D, Watson, ML, Wheelwright, NT, Whittingham, L, Winkler, DW, Youngflesh, C, Zimmer, C & Vitousek, MN. 2026. Divergent climate impacts despite similar response to temperature in a widespread aerial insectivore. In press: Proceedings of the National Academy of Sciences, USA

222. Nigam, OK***, Mueller, SD**, Jones, PL, Dobney, SL & Norris, DR. 2026. Causes and consequences of incubation patterns in female Savannah sparrows (Passerculus sandwichensis). In press: Canadian Journal of Zoology

221. Polley, M**, Linton, JE, Brewster, A, MacKenzie, AS, Keyghobadi, N, Steiner, J, Kerekes, T & Norris, DR. 2026. Reintroduction of an endangered butterfly, the Mottled Duskywing (Erynnis martialis). Animal Conservation 29:261–273. PDF

220. Spina, HA**, Newman, AEM, Wheelwright, NT, Mennill, DJ, Doucet, SM, Burant, JB**, Dobney, SL, Mueller, SD**, Mitchell, GW** & Norris, DR. 2026. Causes and consequences of within-population variation in inter-brood interval of a migratory songbird. Ibis 168(1):182-200. PDF

2025

219. Polley, M**, Linton, JE, Brewster, A, MacKenzie, AS, Keyghobadi, N, Steiner, J, Kerekes, T & Norris, DR. 2025. Host plant patch size selection of an endangered butterfly, the Mottled Duskywing (Erynnis martialis), at a reintroduction size. Journal of Insect Conservation 29:art97.PDF

218. Camaclang, AE, Iyer, A, Liang, C, Giles, E, Frank, B, Currie, J, Alambo, KI, Lamoureux, J, Matchett, S, Miller, T, Norris, DR, Perron, MA, Rumney, RHM, Schueler, FW, Timms, L, Paquette, C, Hemming, V, Snider, J & Martin, TG. 2025. Nature requires investment: applying priority threat management to support biodiversity and climate targets. Ecological Solutions and Evidence 6(4): e70143. PDF

217. Chu, JJ**, Norris, DR, Bourque, J, Roy, C, Wilson, O & Gow, EA. 2025. An updated estimate of the number of birds killed by outdoor cats in Canada. Avian Conservation and Ecology 20(20), art12. PDF

216. Flockhart, DTT, Nicol, S, Chades, I, Mitchell, GW, Martin, TG, Fuller, RA & Norris, DR. 2025. Optimal conservation of migratory monarch butterflies requires immediate international coordination. Current Biology 35(16): 4011-4018.e4. PDF

215. Mueller, SD**, Mennill, DJ, Doucet, SM, Dobney, SL, Spina, HA** & Norris, DR. 2025. Environmental conditions and individual characteristics influence movement patterns of juvenile Passerculus sandwichensis (Savannah sparrow) throughout the post-fledging period. Ornithology 142(3): ukaf016. PDF

214. Spina, HA**, Newman, AEM, Wheelwright, NT, Mennill, DJ, Doucet, SM, Burant, JB**, Dobney, SL, Mueller, SD**, Mitchell, GW** & Norris, DR. 2025. Multigenerational outcomes of double-brooding: a 30-year study of a migratory songbird. Behavioural Ecology 36(4):araf040. PDF

213. Chowdhury, S, Cardillo, M, Chapman, J, Green, D, Norris, DR, Riva, F, Zalucki, MP, Fuller, RA. 2025. Protected areas fail to cover the full annual cycle of migratory butterflies. Conservation Biology 39(3): e14423. PDF

212. Mueller, SD**, Wheelwright, NT, Mennill, DJ, Newman, AEM, Doucet, SM, Burant, JB**, Dobney, SL, Mitchell, GW**, Spina, HA, Woodworth, BK** & Norris, DR. 2025. Population density and timing of breeding mediate effects of early life conditions on recruitment. Biology Letters 21: 20240689. PDF

211. Ong, K** & Norris, DR. 2025. Experimental evidence demonstrating how freeze-thaw patterns affect spoilage of perishable cached food. Public Library of Science One 20(4):e0319043. PDF

210. Mueller, SD**, Wheelwright, NT, Mennill, DJ, Newman, AEM, Doucet SM, Burant, JB**, Dobney, SL, Mitchell, GW**, Spina, HA**, Woodworth, BK** & Norris, DR. 2025. Reduced fitness of secondary females in a facultatively polygynous species: a 32-year study of Savannah sparrows. Behavioural Ecology 36(1):arae093. PDF

209. Spina, HA**, Norris, DR, Nong, L, Dobney, SL, Mueller, SD**, Freeman, NE**, Doucet, SM, Mennill, DJ & Newman, AEM. 2025. Corticosterone predicts double brooding in female Savannah sparrows (Passerculus sandwichensis). Hormones and Behaviour 168:105679. PDF

2024

208. Duali, J**, DeLuca, WV, MacKenzie, SA, Tremblay, JA, Drolet, B, Hache, S, Roberto-Charron, A, Ruiz, M, Boardman, R, Cooke, HA, Rimmer, CC, McFarland, KP, Marra, PP, Taylor, PD & Norris, DR. 2024. Range-wide post- and pre-breeding migratory networks of a declining Neotropical-Nearctic migratory bird, the blackpoll warbler. Scientific Reports 14:30229. PDF

207. Suarez Sharma, SP, Dobney, SL, Norris, DR, Doucet, SM, Newman, AEM, Burant, JB**, Moran, IG, Mueller, SD**, Spina, HA** & Mennill DJ. 2024. Effects of age, breeding strategy, population density, and number of neighbours on territory size and shape in Passerculus sandwichensis (Savannah sparrow). Ornithology 141(4):ukae025. PDF

206. Fuirst, M**, Strickland, D, Freeman, NE**, Sutton, AO**, Graham, BA, Burg, T & Norris, DR. 2024. Survival throughout the annual cycle of first year Canada jays in the context sibling competition, expulsion, and adoption. Ornithology 141(3):ukae013. PDF

205. Cooke, SJ, Piczak, ML, Sing, NJ, Akesson, S, Ford, AT, Chowdhury, S, Mitchell, GW, Norris, DR, Hardesty-Moore, M, McCauley, D, Hammerschlag, N, Tucker, MA, Horns, J, Reisinger, RR, Kubelka, V & Lennox, RJ. 2024. Animal migration in the Anthropocene: threats and mitigation options. Biological Reviews 99(4):1242-1260. PDF

204. Pyott, M**, Norris, DR, Mitchell, G, Custode, L** & Gow, EA. 2024. Home range size and habitat selection of owned outdoor demestic cats (Felis catus) in urban southwestern Ontario. PeerJ 12:e17159. PDF

203. Sutton, AO**, Strickland D, Lachapelle J***, Young, RG, Hanner, R, Brunton, DF, Skevington, JH, Freeman, NE** & Norris, DR. 2024. Fecal DNA metabarcoding helps characterize Canada jay diet and confirms the reliance of stored food for winter survival and breeding. Public Library of Science, One 19(4):e0300583. PDF

202. Aubin, JA, Dobney, SL, Foreman, SA, Doucet, SM, Norris, DR, Williams, H. & Mennill, DJ. 2024. Birds respond more strongly to locally-common versus locally-rare songs: a playback experiment with Savannah sparrows. Animal Behaviour 212:127-135. PDF

201. Pickering, JK**, Bradstreet, MS & Norris, DR. 2024. Less is more: Vegetation changes coincide with white-tailed deer (Odocoileus virginianus) suppression over thirty years. Wildlife Monographs 214(1):e1080. PDF

200. Williams, H, Dobney, SL, Robins, C, Norris, DR, Newman, AEM, Doucet, SM, & Mennill, DJ. 2024. Familiarity and homogeneity affect the discrimination of a song dialect. Animal Behaviour 209:9-20. PDF

199. Van Drunen, S**, Linton, JE, Bogart, JP & Norris, DR. 2024. Environmental drivers of juvenile dispersal and adult non-breeding movements in Ambystoma salamanders. Canadian Journal of Zoology 102(1):39-52. PDF

2023

198. Dobney, S, Bornias, MK, Norris, DR, Newman, AEM, Williams, H, Doucet, S & Mennill, DJ. 2023. Quiet in the nest: the nest environment attenuates song in a grassland songbird. Avian Research 14:100148. PDF

197. Siemens, A***, Bogart, JP, Linton, JE & Norris, DR. 2023. Predicting the occurrence of an endangered salamander in a highly developed landscape. Endangered Species Research 52:81-95. PDF

196. Custode, LB**, Pither, R, Moola, F & Norris, DR. 2023. A Canada-wide macro assessment of protected area connectivity. Biological Conservation 285: 110246. PDF

195. Burant, JB** & Norris, DR. 2023. Demographic signals of population decline and time to extinction in a seasonal, density-dependent model. Theoretical Ecology 16: 181–194. PDF

194. Fuirst, M**, Strickland, D, Freeman, NE**, Sutton, AO** & Norris, DR. 2023. Early-life sibling conflict in Canada jays has lifetime inclusive fitness consequences. Proceedings of the Royal Society, London: Biological Sciences 290:20221863. PDF

193. Heide, KT**, Friesen, LE, Martin, V, Cheskey, E, Cadman, M & Norris, DR. 2023. Before-and-after evidence that urbanization contributes to the decline of a migratory songbird. Avian Conservation & Ecology 18(1):15. PDF

192. Demarse, A**, Trendos, E**, Linton, JE, Flockhart, DTT, Brewster, A, Keyghobadi, N, Custode, L & Norris, DR. 2023. Phenology, population size, and factors influencing variation in density of an endangered butterfly, the Mottled Duskywing (Erynnis martialis). Endangered Species Research 50: 195–208. PDF

191. Reich, MS, Kindra, M, Dargent, F, Hu, L, Flockhart, DTT, Norris, DR, Kharouba, H, Talavera, G & Bataille, C. 2023. Metals and metal isotopes in insect wings: implications for diet, geolocations and pollution exposure. Frontiers in Ecology & Evolution 11:1085903. PDF

2022

190. vanVliet, HEJ, Horn, LC, Norris, DR & Stutchbury, BJM. 2022. Migratory behavior of Ontario-breeding Savannah sparrows (Passerculus sandwichensis) revealed by automated radio-telemetry. Wilson Journal of Ornithology 134(4): 595–603.

189. Williams, H, Scharf, A, Ryba, A, Norris, DR, Mennill DJ, Newman, AEM, Doucet, S & Blackwood, J. 2022. Cumulative cultural evolution and mechanisms for cultural selection in wild bird songs. Nature Communications 13:4001. PDF

188. Kroeze, S, Brewster, A, Linton, JE, Norris, DR, Otis, G, Young, Y & Keyghobadi, N. 2022. Microsatellites for the at-risk Mottled Duskywing butterfly, Erynnis martialis. Conservation Genetics Resources 1:1. PDF

187. Van Drunen, SG, Linton, JE, Kuwahra, G & Norris, DR. 2022. Flower plantings promote pollinator abundance and native bee richness in Canadian agricultural landscapes. Journal of Insect Conservation 26:375-386. PDF

186. Hensel, ALJ, Dobney, S, Moran, IG, Thomas, IP, Burant, JB**, Woodworth, BK**, Doucet, SM, Newman, AEM, Norris, DR, Williams, H & Mennill, DJ. 2022. Passive acoustic monitoring provides predictable underestimates of population size and demographic rates in a wild bird. Ornithological Applications 124(3), duac018.

185. Meehan, TD, Sanders, SP, DeLuca, WV, Michel, NL, Grand, J, Deppe, JL, Jimenez, MF, Knight, EJ, Seavy, NE, Smith MA, Taylor, L, Witko, C, Akresh, ME, Barber, DR, Bayne, EM, Beasley, JC, Belant, JL, Bierregaard, RO, Bildstein, KL, Boves, TJ, Brzorad, JN, Campbell, SP, Celis, Murilla, A, Cooke, HA, Domenech, R, Goodrich, L, Gow, EA*, Haines, A, Hallworth, MT, Hill, JM, Holland, AE, Jennings, S, Kays, R, King, DT, MacKenzie, SA, Marra, PP, McCabe, RA, McFarland, KP, McGrady, MJ, Melcer Jr., R, Norris, DR, Norvell, RE, Rhodes Jr., OE, Rimmer, CC, Scarpignato, AL, Shreading, A, Watson, JL, Wilsey, C. 2022. Integrating data types to estimate spatial patterns of avian migration across the Western Hemisphere. Ecological Applications 32(7): e2679. PDF

184. Henault, J, Linton, JE, Norris, DR & Westwood, R. 2022. Egg laying behavior and larval-shelter-construction of the endangered Mottled Duskwing (Erynnis martialis). Journal of the Lepidopterists’ Society 76(1):43-55.

183. Hensel, ALJ, Dobney, S, Doucet, SM, Norris, DR, Newman, AEM, Williams, H & Mennill, DJ. 2022. Microgeographic variation in bird song: Savannah Sparrows exhibit microdialects in an island population. Animal Behaviour 188:119-131. PDF

182. Clyde, HE**, Norris, DR, Lupton, E***, & Gow, EA*. 2022. Estimating habitat characteristics associated with the abundance of free-roaming cats across the annual cycle. Wildlife Research 49(7): 583-595. PDF

181. Fuirst, M**, McLeod, J***, & Norris, DR. 2022. Habitat preferences of adult Canada jays (Perisoreus canadensis) during the post-breeding period in Algonquin Park, Ontario. Canadian Journal of Zoology 100(6):355-262. PDF

180. Jetz, W, Teritski, G, Kays, R, Mueller, U, Wikelski, M & 50 other authors. 2022. Biological earth observation with animal sensors. Trends in Ecology & Evolution 37(4):293-298. PDF

179. Stevens, M & Norris, DR. 2022. A mixed methodology for evaluating use of evidence in conservation planning. Conservation Biology 36(4):e13876. PDF

178. Sorenson, MC*, Strickland, D, Freeman, NE**, Sutton, AO** & Norris, DR. 2022. Early-life experience shapes patterns of senescence in a food-caching passerine. Biology Letters 18(1):20210532. PDF

177. Quarrell, NJ**, Strickland, D, & Norris, DR. 2022. Investigating the factors that set the lower elevation limit of Canada Jays (Perisoreous canadensis) on Vancouver Island. Canadian Journal of Zoology 100(1):64-76. PDF

176. Burant, JB**, Heisey, EW***, Wheelwright, NT, Newman, AEM, Whelan, S**, Mennill, DJ, Doucet, SM, Mitchell, GW**, Woodworth, BK** & Norris, DR. 2022. Natal experience and pre-breeding environmental conditions affect lay date plasticity in Savannah sparrows. Ecology 103(2):e03575. PDF

2021

175. Brlik, V, Pipek, P, Brandis, K, Chernetsov, N, Costa, FJV, Herrera, LG, Kiat, Y, Lanctot, R, Marra, PP, Norris, DR, Nwaogu, CJ, Quillfeldt, P, Saalfeld, ST, Stricker, CA, Thomson, RL, Zhao, T & Prochazka, P. 2021. The reuse of avian samples: opportunities, pitfalls, and a solution. Ibis 164(1):343-349. PDF

174. Fuirst, M**, Strickland, D & Norris, DR. 2022. Patterns and causes of breeding dispersal in a declining population of Canada Jays (Perisoreus canadensis) over 55 years. Animal Behviour 182:31-84. PDF

173. Bayly, NJ, Norris, DR, Taylor, PD, Rosenberg, KV & Hobson, KA. 2022. Rapid recovery by fat- and muscle-depleted Blackpoll Warblers following trans-oceanic migration is driven by time-minimization. Ornithology 138(4):ukab05. PDF

172. Reich, MS, Flockhart, DTT, Norris, DR, Hu, L & Bataille, C. 2021. Continuous-surface geographic assignment of migratory insects using strontium isotopes: a case study with monarch butterflies. Methods in Ecology & Evolution 12(12):2445-2457. PDF

171. Wilcox, AE**, Newman, AEM, Raine, NE, Mitchell, GW & Norris, DR. 2021. Captive-reared migratory monarch butterflies show natural orientation when released in the wild: reply to Davis (2021). Conservation Physiology 9(1):coab064. PDF

170. Grahame, ERM**, Martin, KD***, Gow, EA* & Norris, DR. 2021. Diurnal and nocturnal habitat preference of Eastern Whip-poor-wills (Antrostomus vociferous) in the northern portion of their breeding range. Avian Conservation & Ecology 16(2):14. PDF

169. Fuirst, M**, Strickland, D & Norris, DR. 2021. Breeding dispersal can lead to short- and long-term fitness benefits in a boreal passerine. Ecosphere 12(9): e03747. PDF

168. Custode, L***, Guzzo, MM, Bush, N, Ewing, C, Procko, M, Knight, SM, Rousseau-Clair, M-M & Norris, DR. 2021. Canadian private protected areas are located in regions of higher vertebrate species richness than government-protected areas. Facets 6(1):1323-1336. PDF

167. Freeman, NE**, Norris, DR, Sutton, AO**, Strickland, D & Newman, AEM. 2021. Early-life corticosterone and body condition influence social status and survival in Canada jays. Integrative and Comparative Biology 61(1):9-19. PDF

166. Thomas, IP, Doucet, SM, Norris, DR, Newman, AEM, Williams, H & Mennill, DJ. 2021. Choice and consequence in avian vocal learning: acoustic similarity to neighbours shapes selective attrition and territorial aggression in Savannah sparrows. Animal Behaviour 176:77-86. PDF

165. Knight, SM, Flockhart DTT*, Derbyshire, R, Bosco, MG*** & Norris, DR. 2021. Experimental field evidence shows milkweed contaminated with a common neonicotinoid decreases the survival of monarch butterflies. Journal of Animal Ecology 90(7)1742-1752. PDF

164. Wilcox, AE**, Newman, AEM, Raine, NE, Mitchell, GW & Norris, DR. 2021. Captive-reared migratory monarch butterflies show natural orientation when released in the wild. Conservation Physiology 9(1):coab032. PDF

163. Burant, JB**, Park, C***, Betini, GS* & Norris, DR. 2021. Early warning indicators of population collapse in a seasonal environment. Journal of Animal Ecology 90(6):1538-1549. PDF

162. Wilcox, AE**, Newman, AEM & Norris, DR. 2021. Developmental and reproductive effects of neonicotinoid exposure in monarch butterflies (Danaus plexippus). Canadian Entomologist 153(3):327-342. PDF

161. Wilcox, AE**, Newman, AEM, Raine, NE, Mitchell, GW & Norris, DR. 2021. Effects of early-life exposure to sublethal levels of a common neonicotinoid on the orientation and migration of monarch butterflies (Danaus plexippus). Journal of Experimental Biology 224(4). PDF

160. Freeman, NE**, Newman, AEM, Sutton, AO**, Kyser TK & Norris, DR. 2021. Causes and consequences of variation in diet composition of nestling Canada Jays. Journal of Avian Biology 52(1):e02623. PDF

159. Sutton, AO**, Strickland, D, Freeman, NK** & Norris, DR. 2021. Climate-driven carry-over effects negatively influence population growth in a food-caching boreal passerine. Global Change Biology 27(5):983-992. PDF

158. Sutton, AO**, Strickland, D, Freeman, NK** & Norris, DR. 2021. Environmental conditions modulate the compensatory effects of site-dependence in a food-caching passerine. Ecology 102(1): e03203. PDF

157. Van Drunen, S**, Linton, JE, Bogart, JP & Norris, DR. 2021. Post-emergence survival and dispersal of juvenile Jefferson salamander (Ambystoma jeffersonianum) and their unisexual dependants. Amphibia-Reptilia 42(1):29-41. PDF

2020

156. Burant, JB**, Griffin, A***, Betini, GS & Norris, DR. 2020. An experimental test of the ecological mechanisms driving density-mediated carry-over effects in a seasonal population. Canadian Journal of Zoology 98(7):425-432. PDF

155. Grant, TJ, Flockhart, DTT, Blader, TR, Hellmich, RL, Pitman, GM**, Tyner, S, Norris, DR & Bradbury, SP. 2020. Estimating arthropod survival probability from field counts: a case study with monarch butterflies. Ecosphere 11(4):e03082.

154. Cooke, SJ, Nguyen, VM, Anastakis, D, Scott, SD, Turetsky, MR, Amirfazli, A, Hearn, A, Milton, C, Loewen, L, Smith, EE, Norris, DR, Lavoie, KL, Aiken, A, Ansari, D, Antle, AN, Babel, M, Bailey, J, Bernstein, DM, Birnbaum, R, Bourassa, C, Calcagno, A, Campana, A, Chen, B, Collins, K, Connelly, CE, Denov, M, Dupont, B, George, E, Gregory-Eaves, I, High, S, Hill, JM, Jackson, PL, Jette, N, Jurdjevic, M, Kothari, A, Khairy, P, Lamoureux, SA, Ladner, K, Landry, CR, Legare, F, Lehoux, N, Leuprecht, C, Lieverse, AR, Luczak, Mallory, ML, Manning, E, Mazalek, A, Murray, SJ, Newman, LL, Ooterveld, V, Potwin, P, Reimer-Kirkham, S, Roswell, J, Stacey, D, Tighe, SL, Vocadlo, DJ, Wilson, AE & Woolford, A. 2020. Perspectives on interdisciplinarity from members of the Canadian College of New Scholars, Artists, and Scientists. Facets 5(1):138-165.

153. Birnie-Gauvin, K, Lennox, RL, Gugliemo, CG, Teffer, AK, Crossin, GT, Norris, DR, Aarestrup, K & Cooke, SJ. 2020. The value of experimental approaches in migration biology.Physiological and Biochemical Zoology 93(3):210-226. PDF

152. Bayly, NJ, Norris, DR, Taylor, PD, Hobson, KA, Morales,-Rozo, AM. 2020. There’s no place like home – a tropical overwintering site fuels half the spring migration of blackpoll warblers. Animal Behaviour 162:95-104. PDF

151. Van Drunen, S**, Linton, JE, Bogart, JP, McCarter, J, Fotherby, H, Sandilands, A & Norris, DR. 2020. Estimating critical habitat based on year-round movements of the endangered Jefferson salamander (Ambystoma jeffersonianum) and their unisexual dependents. Canadian Journal of Zoology 98(2):117-126. PDF

150. Freeman. NE**, Norris, DR, Sutton, AO** & Newman AEM. 2020. Raising young with limited resources: supplementation improves body condition and advances fledging date of Canada Jays. Ecology 101(1):e02909. PDF

149. vanVliet, HEJ., Stutchbury, BJM, Newman, AEM & Norris, DR. 2020. The impacts of agricultural intensification on an obligate grassland bird of North America. Agriculture, Ecosystems & Environment 287:106696. PDF

148. Brlik, V, Kolecek, J, Burgess, M, Hahn, S, Humple, D, Krist, M, Ouwehand, J, Weiser, EL, Adamik, P, Alves, JA, Arit, D, Barisic, S, Becker, D, Belda, EJ, Both, C, Bravo, SP, Briedis, M, Chutny, B, Cikovic, D, Cooper, NW, Costa, JS, Cueto, VR, Emmenegger, T, Fraser, K, Gilg, O, Guerrero, M, Hallworth, MT, Hewson, C, Jiguet, F, Johnson, JA, Kelly, T, Kishkinev, D, Leconte, M, Lislevand, T, Lisovski, S, Lopez, C, McFarland, KP, Marra, PP, Matsuoka, SM, Matyjasiak, P, Meier, CM, Metzger, B, Monros, JS, Neumann, R, Newman, AEM, Norris, DR, Part, T, Pavel, V, Perlut, N, Piha, M, Reneerkens, J, Takenaka, M, Tolkmitt, D, van Oosten, H, Wellbrock, AHJ, Wheeler, H, van der Winden, J, Witte, K, Woodworth, BK** & Prochazka, P. 2020. Weak effects of geolocators on small birds: a meta-analysis controlled for phylogeny and publication bias. Journal of Animal Ecology 89(1): 207-220. PDF

147. Kilgour, RJ**, Norris, DR & McAdam. 2019. Carry-over effects of resource competition and social environment on aggression. Behavioural Ecology 31(1):140-151. PDF

2019

146. Burant, JB**, Betini, GS & Norris, DR. 2019. Simple signals indicate which period of the annual cycle drives declines in seasonal populations. Ecology Letters 22(12): 2141-2150. PDF

145. Gow, EA*, Knight, SM, Bradley, DW*, Clark, RG, Winkler, DW, Belise, M, Berzins, L, Blake, T, Bridge, ES, Burke, L, Dawson, RD, Dunn, PO, Garant, D, Holroyd, G, Hussell, DJT, Lansdorp, O, Laughlin, AJ, Leonard, ML, Pelletier, F, Shutler, D, Siefferman, L, Taylor, CM, Trefry, H, Vleck, CM, Vleck, D, Whittingham, LA, & Norris, DR. 2019. Effects of spring migration distance on tree swallow reproductive success within and between flyways. Frontiers in Ecology & Evolution 7:art380. PDF

144. Mennill, DJ, Doucet, SM, Newman, AEM, Williams, H, Moran, IG, Thomas, IP, Woodworth, BK**, Bormais, M & Norris, DR. 2019. Social eavesdropping on adult vocal interactions does not enhance juvenile song learning: a playback experiment on a wild songbird population. Animal Behaviour 155:67-75. PDF

143. Moran, IG, Lukianchuk, KC, Doucet, SM, Newman, AEM, Williams, H, Norris, DR & Mennill, DJ. 2019. Diel and seasonal patterns of variation in the singing behavior of Savannah sparrows (Passerculus sandwichensis). Avian Research 10:26. PDF

142. Ralston, J, Lorenc, L, Montes, M, DeLuca, WV, Kirchman, JJ, Woodworth, BK**, MacKenzie, SA, Newman, AEM, Cooke, H, Freeman, NE**, Sutton, AO**, Tauzer, L & Norris, DR. 2019. Length polymorphisms at two candidate genes explain variation in migratory behaviors of blackpoll warblers. Ecology & Evolution 9(15):8840-8855. PDF

141. Knight, SM, Pitman, GM**, Flockhart, DTT* & Norris, DR. 2019. Radio-tracking reveals how wind and temperature influence the pace of insect migration. Biology Letters 15:20190327. PDF

140. Knight, SM, Norris, DR, Derbyshire, R, Flockhart, DTT*. 2019. Strategic mowing of roadside milkweeds increases monarch butterfly oviposition. Global Ecology & Conservation 19:e00678. PDF

139. Flockhart, DTT*, Larrivee, M, Prudic, KL & Norris, DR. 2019. Estimating the annual distribution of monarch butterflies in Canada over 16 years using citizen science data. Facets 4:238-253. PDF

138. Knight, SM**, Gow, EA*, Bradley, DW*, Clark, RG, Belise, M, Berzins, L, Blake, T, Bridge, ES, Burke, L, Dawson, RD, Dunn, PO, Garant, D, Holroyd, G, Hussell, DJT, Lansdorp, O, Laughlin, AJ, Leonard, ML, Pelletier, F, Shutler, D, Siefferman, L, Taylor, CM, Trefry, H, Vleck, CM, Vleck, D, Whittingham, LA, Winkler, DW & Norris, DR. 2019. Non-breeding season movements of a migratory songbird are related to declines in resource availability. The Auk: Ornithological Advances 136(3): ukz028. PDF

137. Sutton, AO**, Strickland, D, Freeman, NE**, Newman, AEM & Norris, DR. 2019. Fall freeze-thaw events carry over to depress late-winter reproductive performance in Canada Jays. Royal Society, Open Science 6:181754. PDF

136. Derbyshire, R**, Norris, DR, Hobson KA & Strickland, D. 2019. Isotopic spiking and food dye experiments provide evidence that Canada Jay nestlings receive cached food from their parents. Canadian Journal of Zoology 97:368-375. PDF

135. Wilcox, AE**, Flockhart, DTT, Newman AEM & Norris, DR. 2019. An evaluation of studies on the potential threats contributing to the decline of eastern migratory North American monarch butterflies (Danaus plexippus). Frontiers in Ecology & Evolution 7:art99. PDF

134. DeLuca, WV, Woodworth, BK**, Mackenzie, SA, Newman, AEM, Cooke, H, Phillips, LM, Freeman, NE**, Sutton, AO**, Tauzer, L, McIntyre, C, Stenhouse, I, Weidensaul, S, Taylor, PD & Norris, DR. 2019. A boreal songbird’s 20,000 km migration across North America and the Atlantic Ocean. Ecology 100(5):e02651. PDF

133. Flockhart, DTT*, Acron, JH, Hobson, KA & Norris, DR. 2019. Documenting successful recruitment of monarch butterflies at the extreme northern edge of their range. Canadian Entomologist 151(1): 49-57. PDF

132. Gow, EA*, Burke, L, Winkler, DW, Knight, SM**, Bradley, DW*, Clark, RG, Belise, M, Berzins, L, Blake, T, Bridge, ES, Dawson, RD, Dunn, PO, Garant, D, Holroyd, G, Hussell, DJT, Lansdorp, O, Laughlin, AJ, Leonard, ML, Pelletier, F, Shutler, D, Siefferman, L, Taylor, CM, Trefry, H, Vleck, CM, Vleck, D, Whittingham, LA & Norris, DR. 2019. A range-wide domino effect and resetting of the annual cycle in a migratory songbird. Proceedings of the Royal Society, London: Biological Sciences 286: 20181916. PDF

131. Williams, H, Robbins, CW, Norris, DR, Newman, AEM, Freeman-Gallant, CR, Wheelwright, NT & Mennill, DJ. 2019. The buzz segment of savannah sparrow song is a population marker. Journal of Ornithology 160: 217-227. PDF

2018

130. Vander Zanden, HB, Chaffe, CL, Gonzalez-Rodriquez, A, Flockhart, DTT*, Norris, DR & Wayne, ML. 2018. Alternate migration strategies of eastern monarch butterflies revealed by stable isotopes. Animal Migration 5: 74-83. PDF

129. Hobson, KA, Norris, DR, Kardynal, KJ, Yohannes, E. 2018. Animal migration: a context for using new techniques and approaches. Pages 1-23 In: Tracking Animal Migration using Stable Isotopes, 2^nd Edition (Eds. KA Hobson & LI Wassenaar). Elsevier, New York.

128. Wunder, MB & Norris, DR. 2018. Design and analysis of isotope-based studies of migratory animals. Pages 191-206 In: Tracking Animal Migration using Stable Isotopes, 2^nd Edition (Eds. KA Hobson & LI Wassenaar). Elsevier, New York.

127. Mennill, DJ, Doucet, SM, Newman, AEM, Williams, H, Moran, I, Woodworth, BK**, Thomas, I & Norris, DR. 2018. Wild birds learn songs from experimental vocal tutors. Current Biology 28: 3273-3278. PDF

*See also “Dispatches” article: Podos, J. 2018. Animal Behaviour: Song learning out of the box. Current Biology 28: R1190-R1211. PDF

126. Satterfield, DA, Maerz, JC, Hunter, MD, Flockhart DTT*, Hobson, KA, Norris, DR, Streit, H, de Roode, J, Altizer, S. 2018. Migratory monarchs that encounter resident monarchs show life-history changes and higher rates of parasite infection. Ecology Letters 21(11): 1670-1680. PDF

125. Moran, I, Doucet, SM, Newman, AEM, Norris, DR & Mennill, DJ. 2018. Quiet violence: Savannah sparrows respond to playback-simulated rivals using soft songs as aggressive signals. Ethology 124(10): 724-732. PDF

124. Woodworth, BK**, Norris, DR, Graham, BA, Kahn, ZA & Mennill, DJ. 2018. Hot temperatures during the dry season reduce the survival of a resident tropical bird. Proceedings of the Royal Society, London: Biological Sciences 285: 20180176. PDF

123. Knight, SM**, Bradley, DW*, Clark, RG, Gow, EA*, Belise, M, Berzins, L, Blake, T, Bridge, ES, Burke, L, Dawson, RD, Dunn, PO, Garant, D, Holroyd, G, Hussell, DJT, Lansdorp, O, Laughlin, AJ, Leonard, ML, Pelletier, F, Shutler, D, Siefferman, L, Taylor, CM, Trefry, H, Vleck, CM, Vleck, D, Winkler, DW, Whittingham, LA & Norris, DR. 2018. Constructing and evaluating a continent-wide migratory songbird network across the annual cycle. Ecological Monographs 88(3): 445-460. PDF

122. Kilgour, RJ**, McAdam, AG, Betini, GS, Norris, DR. 2018. Experimental evidence that density mediates negative frequency-dependent selection on aggression. Journal of Animal Ecology 87(4): 1091-1101. PDF

121. Sample, C, Frxyell, JM, Bieri, J, Federico, P, Earl, J, Wiederholt, R, Mattsson, BJ, Flockhart, DTT*, Nicol, S, Diffendorfer, JE, Thogmartin, WE, Erickson & Norris, DR. 2018. A general modeling framework for describing spatio-temporal population dynamics. Ecology & Evolution 8: 493-508. PDF

120. Pitman, G**, Flockhart, DTT* & Norris, DR. 2018. Patterns and causes of oviposition in monarch butterflies: implications for milkweed restoration. Biological Conservation 217: 54-65. PDF

119. Flockhart, DTT*, Dabydeen, A***, Satterfield, D, Hobson, KA, Wassenaar, LI & Norris, DR. 2018. Patterns of parasitism in monarch butterflies during the breeding season in eastern North America. Ecological Entomology 43: 28-36. PDF

118. Earl, JE, Nicol, S, Weinderholt, R, Diffendorfer, JE, Semmens, D, Flockhart, DTT*, Mattson, BJ, McCracken, G, Norris, DR, Rodriquez-McGoffin, MS, Thogmartin, WE & Lopez-Hoffman, L. 2018. Quantitative tools for implementing the new “significant portion of the range” definition for the Endangered Species Act. Conservation Biology 32: 35-49. PDF

117. Erickson, RA, Diffendorfer, JE, Norris, DR, Bieri, JA, Earl, JE, Federico, P, Fryxell, JM, Long, KR, Mattsson, BJ, Sample, C, Wiederholt, R & Thogmartin, WE. 2018. Defining and classifying migratory habitats as sources and sinks: the migratory pathway approach. Journal of Applied Ecology 55: 108-117. PDF

116. Weinderholt, R, Mattson, BJ, Thogmartin, WE, Runge, MC, Diffendorfer, JE, Erickson, RA, Federico, P, Lopez-Hoffman, L, Fryxell, JM, Norris, DR & Sample, C. 2018. Estimating the per-capita contribution of habitats and pathways in a migratory network: a modeling approach. Ecography 45: 815-824. PDF

2017

115. Woodworth, BK**, Wheelwright, NT, Newman, AEM, & Norris, DR. 2017. Local density regulates songbird reproductive success through effects on double-brooding and nest predation. Ecology 98: 2039-2048. PDF

114. Elliott, KH*, Betini, GS* & Norris, DR. 2017. Fear creates an Allee effect: experimental evidence from seasonal populations. Proceedings of the Royal Society, London: Biological Sciences 284: 20170878. PDF

113. Newman, AEM, Hess, H*, Woodworth, BK* & Norris, DR. 2017. Time as a tyrant: the minute, hour and day make a difference for corticosterone concentrations in wild nestlings. General & Comparative Endocrinology 250: 80-84. PDF

112. Gomez, C, Bayly, N, Norris, DR, McKenzie, SA, Taylor, PD, Hobson, KA, Rosenberg, KV & Cadena, CD. 2017. Fuel loads acquired at a single stopover site carry over to influence the pace of intercontinental migration in a boreal songbird. Scientific Reports 7: 3405. PDF

111. Taylor, PD, Crewe, TL, Mackenzie, SA, Lepage, D, Crysler, Z, Guglielmo, CG, Hamilton, DJ, Holberton, RL, Loring, PH, Norris, DR, Paquet, J, Ronconi, RA, Smetzer, J, Welch, L & Woodworth, BK**. 2017. The Motus Wildlife Tracking System: A collaborative research network to enhance the understanding of wildlife movement. Avian Conservation & Ecology 12(1): 8. PDF

110. Flockhart, DTT*, Fitz-gerald, B***, Brower, LP, Derbyshire, R, Hobson, KA, Wassenaar, LI, Altizer, S & Norris, DR. 2017. Migration distance as a selective episode for wing morphology in a migratory insect. Movement Ecology 5: 7. PDF

109. Elliott, KH*, Norris, DR, Betini, GS & Dworkin, I. 2017. Scared fitless: context-dependent response of fear to loss of predators over evolutionary time. Facets 2: 342-354. PDF

108. Whelan, S**, Strickland, D, Morand-Ferron, J & Norris, DR. 2017. Reduced reproductive performance associated with warmer ambient temperatures during incubation in a winter-breeding, food-storing passerine. Ecology & Evolution 00: 1-8. PDF

107. Woodworth, BK**, Wheelwright, NT, Newman, AEM, Schaub, M & Norris, DR. 2017. Winter temperatures limit population growth rate of a migratory songbird. Nature Communications 8: 14812. PDF

106. Betini, GS*, McAdam, AG, Griswold, CK & Norris, DR. 2017. A fitness trade-off between seasons causes multigenerational cycles in phenotype and population size. eLife 6: e18770. PDF

105. Flockhart, DTT*, Brower, LP, Ramirez, MI, Hobson, KA, Wassenaar, LI, Altizer, S & Norris, DR. 2017. Regional climate on the breeding grounds predicts variation in the natal origin of monarch butterflies overwintering in Mexico over 38 years. Global Change Biology 23: 2565-2576. PDF

monarchbutterfly-ig1-final

2016

104. Sutton, AO**, Strickland, D & Norris, DR. 2016. Food storage in a changing world: implications of climate change for food-caching species. Climate Change Responses 3: 12. PDF

103. Kishkinev, D*, Heyers, D, Woodworth, BK**, Mitchell, GW, Hobson, KA & Norris, DR. 2016. Experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study. Scientific Reports 6: 37336. PDF

102. Handrigan, SA, Shummer, ML, Petrie, SA & Norris, DR. 2016. Range expansion and migration of Trumpeter swans Cygnus bicolour re-introduced in southwest and central Ontario. Wildfowl 66: 60-74. PDF

101. Flockhart, DTT*, Norris, DR & Coe, J. 2016. Predicting free-roaming cat density in urban areas. Animal Conservation 19: 472-483. PDF

100. Whelan, S**, Strickland, D, Morand-Ferron, J & Norris, DR. 2016. Male experience buffers female laying date plasticity in a winter-breeding, food-storing passerine. Animal Behaviour 121: 61-70. PDF

99. Knight, S** & Norris, DR. 2016. Light-logging archival geolocators: opening the door to a new era of songbird migration science. Ontario Birds 34: 134-139. PDF

98. Nicol, S, Wiederholt, R, Diffendorfer, JE, Mattson, BJ, Thogmartin, WE, Semmens, D, Lopez-Hoffman,L & Norris, DR. 2016. A management-oriented framework for selecting metrics used to assess habitat- and path-specific quality in spatially structured populations. Ecological Indicators 69:792-802. [PDF]

97. Bairlein, F, Norris, DR, Voight, C, Dunn, EH & Hussell, DJT. 2016. Using stable-hydrogen isotopes to reveal immigration in an Arctic-breeding songbird population. Movement Ecology 4: 16. [PDF]

96. Woodworth, BK**, Newman, AEM, Turbek, SP***, Dossman, BC***, Hobson, KA, Wassenaar, LI, Mitchell, GW**, Wheelwright, NT & Norris, DR. 2016. Differential migration and the link between winter latitude, timing of migration and breeding in a songbird. Oecologia 181: 413-422. PDF

95. Pakkala, JJ**, Norris, DR, Sedinger, JS & Newman, AEM. 2016. Experimental effects of early-life corticosterone on the HPA axis and pre-migratory behaviour in a wild songbird. Functional Ecology 30: 1149-1160. [PDF]

94. Dossman, B, Mitchell, GW*, Norris, DR, Taylor, PD, Guglielmo, CG, Matthews, SN & Rodewald, PG. 2016. The effects of wind and fuel stores on the stopover departure behaviour across a migratory barrier. Behavioral Ecology 27: 567-574. PDF

93. Elliott, KH*, Betini, GS*, Dworkin, I & Norris, DR. 2016. Experimental evidence for within- and cross-seasonal effects of fear on survival and reproduction. Journal of Animal Ecology 85: 507-515. PDF

2015

92. Betini, GS*, Pardy, A***, Griswold, CK & Norris, DR. 2015. Causes and consequences of density-dependent dispersal: the role of seasonality and carry-over effects. Ecosphere 6(12): art 272. PDF

91. Derbyshire, R**, Strickland, D & Norris, DR. 2015. Experimental evidence and 43 years of monitoring data support the food limitation hypothesis in a boreal food-caching songbird. Ecology 96: 3005-3015. PDF

90. Strickland, D & Norris, DR. 2015. An example of phenotypic adherence to the island rule? – Anticosti gray jays are heavier but not structurally larger than mainland conspecifics. Ecology & Evolution5:3687-3694.PDF

89. Mitchell, GW**, Woodworth, BK**, Taylor, PD & Norris, DR. 2015. Automated telemetry reveals age specific differences in flight duration and groundspeed are driven by wind conditions. Movement Ecology 3: 19. PDF

88. Sechley, TH**, Strickland, D & Norris, DR. 2015. Linking the availability of cached food to climate change: an experimental test of the hoard-rot hypothesis. Canadian Journal of Zoology 93: 411-419. PDF

87. Flockhart, DTT*, Kyser, TK, Chipley, D, Miller, N** & Norris, DR. 2015. Experimental evidence shows no fractionation of strontium isotopes (⁸⁷Sr/⁸⁶Sr) among soil, plants, and herbivores: implications for tracking wildlife and forensic science. Isotopes in Environmental & Health Studies 51(3): 372-381. PDF

86. Betini, GS*, Fitzpatrick, MJ & Norris, DR. 2015. Experimental evidence for the effects of habitat loss on the dynamics of migratory networks. Ecology Letters 18: 526-534. PDF

85. Fairhurst, G, Berzins, LL, Bradley, DW*, Romano, A, Romano, M, Ambrosini, R, Dawson, RD, Dunn, PO, Hobson, KA, Liechti, F, Marchant, TA, Norris, DR, Rubolini, D, Saino, N, Shutler, D, Whittingham, LA & Clark RG. 2015. Assessing costs of carrying geolocators using feather corticosterone in two species of aerial insectivore. Royal Society Open Science 2: 150004. PDF

“Backpack geolocators no apparent burden for migratory songbirds” CBC.ca

84. DeLuca, WV, Woodworth, BK**, Rimmer, C, Taylor, PD, Marra, PP, McFarland, K, Mackenzie, SA & Norris, DR. 2015. Transoceanic migration by a 12g songbird. Biology Letters 11: 20141045.PDF

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83. Woodworth, BK**, Mitchell, GW**, Norris, DR, Francis, CM & Taylor, PD. 2015. Patterns and correlates of songbird movements at an ecological barrier assessed using landscape- and regional-scale automated radio-telemetry. Ibis 157: 326-339 PDF

82. Flockhart, DTT**, Pichancourt, JB, Norris, DR & Martin TG. 2015. Unravelling the annual cycle in a migratory animal: breeding-season habitat loss drives declines of monarch butterflies. Journal of Animal Ecology 84: 155-165. PDF

2014

81. Bradley DW*, Clark RG, Dunn, PO, Laughlin, AJ, Taylor, CM, Vleck, C, Whittingham, L & Norris, DR. 2014. Trans-Gulf of Mexico loop migration of Tree swallows revealed by solar geolocation. Current Zoology 60: 653-659. PDF

80. Betini, GS**, Griswold, CG, Prodan, L & Norris, DR. 2014. Body size, carry-over effects, and survival in a seasonal environment: consequences for population dynamics. Journal of Animal Ecology 83: 1313-1321. [PDF]

79. O’Conner, CM, Norris, DR, Crossin, GT & Cooke, SJ. 2014. Biological carry-over effects: linking comment concepts and mechanisms in ecology and evolution. Ecosphere 5(3): art28 PDF

78. Sechley, TH**, Strickland, D & Norris, DR. 2014. Causes and consequences of pre-laying weight gain in a food-caching bird that breeds in the late winter. Journal of Avian Biology 45: 85-93. PDF

77. Gomez, J, Michelson, CI, Bradley, DW*, Norris, DR, Berzins, L, Dawson, RD & Clark RG. 2014. Effects of geolocators on reproductive performance and annual return rates of a migratory songbird. Journal of Ornithology 155: 37-44. PDF

2013

76. Flockhart, DTT**, Wassenaar, LI, Hobson, KA, Martin, TG, Wunder, MB & Norris, DR. 2013. Tracking multi-generational colonization of the breeding grounds by monarch butterflies in eastern North America. Proceedings of the Royal Society, London: Biological Sciences 280 (1768). PDF

75. Betini, GS**, Griswold, CG & Norris, DR. 2013. Density-mediated carry-over effects explain variation in breeding output across time in a seasonal population. Biology Letters 9(5): 20130582. PDF

74. Norris, DR, Flockhart, DTT** & Strickland, D. 2013. Contrasting patterns of survival and dispersal in multiple habitats reveals an ecological trap in a food-caching bird. Oecologia 173: 827-835. PDF

73. Hanley, D*, Miller, N**, Flockhart, DTT** & Norris, DR. 2013. Forewing pigmentation predicts migration distance in wild-caught migratory monarch butterflies. Behavioural Ecology 24: 1108-1113. PDF

The Naked Scientist “Butterflies with built-in solar cells”

72. Laughlin, A, Taylor, CM, Bradley, DW*, LeClair, D**, Whittingham, L, Dunn, PO, Horn, A, Leonard, M, Shutler, D, Dawson, R, Clark, RG, Sheldon, DR, Winkler, DW, & Norris, DR. 2013. Integrating information from geolocators, weather radar and citizen science data to confirm a key stopover area during fall migration for an aerial insectivore. The Auk 150: 230-239. PDF

71. Mouritsen, H, Derbyshire, R***, Stakkeicken, J, Frost, B, Mouritsen, O & Norris, DR. 2013. An experimental displacement and over 50 years of tagged-recoveries show that monarch butterflies are not true navigators. Proceedings of the National Academy of Sciences, USA 110(18): 7348-7353. PDF See also Mouritsen et al. PNAS Letter to the Editor: PDF

70. Betini, GS**, Griswold, CG & Norris, DR. 2013. Carry-over effects, sequential density dependence and the dynamics of populations in a seasonal environment. Proceedings of the Royal Society, London: Biological Sciences 280: 20130110. [PDF]

69. Williams, H, Levin, I, Norris, DR, Newman, AEM & Wheelwright, NT. 2013. Three decades of cultural evolution in Savannah sparrow song. Animal Behaviour 85: 213-223. PDF

68. Pakkala, J***, Norris, DR & Newman, AEM. 2013. An experimental test of the capture-restraint protocol for estimating the acute stress response. Physiological & Biochemical Zoology 86: 279-284. PDF.

2012

67. Flockhart, DTT**, Martin, TG, & Norris, DR. 2012. Experimental examination of intraspecific density-dependent competition during the breeding period in Monarch butterflies (Danaus plexippus). Public Library of Science, One 7(9): e45080. [PDF]

66. Shutler, D, Hussell, DJT, Norris, DR, Winkler, DW, Robertson, RJ, Bonier, F, Rendell, W, Belisle, M, Clark, RG, Dawson, RD, Wheelwright, NT, Lombardo, MP, Truan, MA, Leonard, ML, Horn, AG, Vleck, CM, Vleck, D, Whittingham, LA, Dunn, PO, Hobson, KA, Stanback, MT & Rose, AP. 2012. Spatiotemporal patterns in nest box occupancy by Tree swallows across North America. Avian Conservation & Ecology 7(1): 3 [HTML] [PDF]

for Special Issue on Aerial Insectivores

65. Storm-Suke, A**, Wassenaar, LI, Nol, E & Norris, DR. 2012. The influence of metabolic rate on the contribution of stable-hydrogen and -oxygen isotopes in drinking water to Quail blood plasma and feathers. Functional Ecology 26: 1111-1119. [PDF]

64. Storm-Suke, A**, Norris, DR, Wassenaar, LI, Chin, E & Nol, E. 2012. Factors influencing the turnover and net isotopic discrimination of hydrogen isotopes in proteinaceous tissue: experimental results using Japanese quail. Physiological & Biochemical Zoology 85: 376-384. [PDF]

63. Mitchell, GW**, Newman, AEM, Wikelski, M & Norris, DR. 2012. Timing of breeding carries over to influence migratory departure in a songbird: an automated radiotracking study. Journal of Animal Ecology 81: 1024-1033. PDF

click here to see Journal of Animal Ecology featured youtube video of this paper!

62. Miller, NG**, Wassenaar, LI, Hobson, KA & Norris, DR. 2012. Migratory connectivity in the Monarch butterfly: patterns of spring re-colonization in eastern North America. Public Library of Science, One 3: e39891. [PDF]

Montreal Gazette coverage (This story also appeared in Vancouver Sun, Ottawa Citizen, Edmonton Journal, Victoria Times Colonist, Calgary Herald, Leader Post)
Windsor Star coverage

61. Franks, SE, Norris, DR, Kyser, TK, Fernandez, GJ, Schwarz, B, Carmona, R, Colwell, MA, Correa Sandoval, J, Dondua, A, Gates, HR, Hasse, B, Hodkinson, DJ, Jiminez, A, Lanctot, RB, Ortego, B, Sandercock, BK, Sanders, F, Takekawa, JY, Warnock, N, Ydenberg, RC & Lank, DB. 2012. Range-wide patterns of migratory connectivity in the Western Sandpiper. Journal of Avian Biology 43: 155-167. PDF

60. Bairlein, F, Norris, DR, Nagel, R, Butle, M., Voigt, CC, Fox, JW, Hussell, DJT & Schmaljohann, H. 2012. Cross-hemisphere migration of a 25-gram songbird. Biology Letters 8: 505-507. PDF

click here to listen to the CBC Quirks & Quarks interview about this paper!
Toronto Star coverage (also in Guelph Mercury, Waterloo Record)
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Top 10 most cited and most downloaded article in Biology Letters for 2012

59. Mitchell, GW**, Guglielmo, CG, Wheelwright, NT & Norris, DR. 2012. Short- and long-term costs of reproduction in a migratory songbird. Ibis 154: 325-337 [PDF]

58. Wheelwright, NT, Graf, ES & Norris DR. 2012. Consistency in the size, shape, and colouration of Savannah Sparrow eggs within and between breeding seasons. Condor 114: 412-420. PDF

57. Betini, GS** & Norris, DR. 2012. The relationship between personality and plasticity in Tree swallow aggression and the consequences for reproductive success. Animal Behaviour 83: 137-143. [PDF]

2011

56. Mitchell, GW**, Guglielmo, CG, Wheelwright, NT, Freeman-Gallant, CR & Norris, DR. 2011. Early life events carry-over to influence pre-migratory condition in a free-living songbird. Public Library of Science, One 6(12): e28838. [PDF]

55. Griswold, CG, Taylor, CM, & Norris, DR. 2011. The equilibrium population size of a partially migratory species and its response to environmental change. Oikos 120: 1847-1859. PDF

54. Strickland, D, Kielstra, B*** & Norris, DR. 2011. Experimental evidence for a novel mechanism driving variation in habitat quality in a food caching bird. Oecologia 167: 943-950. PDF

click here to read story on this paper in the UK Guardian

53. Janssen, MH**, Arcese, P, Kyser, TK, Bertram, DF & Norris, DR. 2011. Stable isotopes reveal strategic allocation of resources during juvenile development in a cryptic and threatened seabird, the Marbled murrelet. Canadian Journal of Zoology 89: 859-868. PDF

52. Boyle, WA*, Guglielmo, CG, Hobson, KA & Norris, DR. 2011. Lekking birds in a tropical forest forego sex for migration. Biology Letters 7: 661-663. PDF

click here to listen to CBC Quirks & Quarks interview about this paper!

51. Sheehy, J**, Taylor, CM & Norris, DR. 2011. The importance of stopover habitat for developing effective conservation strategies in migratory animals. Journal of Ornithology 152(S1): S161-S168. PDF

*special issue on 100th Anniversary of the Institute of Avian Research

50. Harrison, XA, Blount, JD, Inger, R, Norris, DR, Bearhop, S. 2011. Carry-over effects as drivers of fitness differences in animals. Journal of Animal Ecology 80: 4-18. PDF

Top 10 most cited article for Journal of Animal Ecology in 2012

49. Miller, NG**, Wassenaar, LI, Hobson, KA & Norris, DR. 2011. Monarch butterflies cross the Appalachians from the west to re-colonize eastern North America. Biology Letters 7: 43-46. PDF

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2010

48. Imlay TI, Crowley, JF, Argue, AM, Steiner, JC, Norris, DR & Stutchbury, BJM. 2010. Survival, dispersal and early migration movements of captive-bred juvenile eastern loggerhead shrikes. Biological Conservation 143: 2578-2582. PDF

47. Griswold, CG, Taylor, CM & Norris, DR. 2010. The evolution of migration in a seasonal environment. Proceedings of the Royal Society, London: Biological Sciences 277: 2711-2720. PDF

46. Sheehy, J**, Taylor, CM, McCann, KS & Norris, DR. 2010. Optimal conservation of migratory animals: integrating demographic information across seasons. Conservation Letters 3: 192-202. PDF

45. Boyle, WA*, Norris, DR & Guglielmo, CG. 2010. Storms drive altitudinal migration in a tropical bird. Proceedings of the Royal Society, London: Biological Sciences 277:2511-2519. PDF

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click here to see article in Science Now

44. Gutowsky, SE***, Janssen, MH** & Norris DR. 2010. The partial prebasic I molt of marbled murrelets. Northwestern Naturalist 91:333-336. PDF

43. Taylor, CM & Norris, DR. 2010. Population dynamics in migratory networks. Theoretical Ecology 3: 65-73. PDF

42. Sorenson, MC**, Hipfner, JM, Kyser, TK & Norris, DR. 2010. Pre-breeding diet quality influences ornament size in the Rhinoceros auklet. Ibis 152: 29-37. PDF

2009

41. Gutowsky, SE***, Janssen, MH**, Arcese, P, Kyser, TK, Ethier, D***, Wunder, MB, Bertram, DF, McFarlane Tranquilla, L, Loughheed, C & Norris, DR. 2009. Concurrent declines in nestling diet quality and reproductive success in a threatened seabird over 150 years. Endangered Species Research 9: 247-254. PDF

Winner: First Place in Life Sciences Category: 2009 Undergraduate Rising Stars Poster Competition, UBC

40. Norris, DR, Kleven, O, Johnsen, A. & Kyser, TK. 2009. Melanin-based plumage and moulting latitude in a migratory songbird. Ethology 115: 1009-1014. PDF

39. Rae, L***, Mitchell, GW**, Guglielmo, CG, Mauck, R & Norris, DR. 2009. Radio transmitters do not affect the body condition of Savannah sparrows during the fall pre-migratory period. Journal of Field Ornithology 80: 434-441. PDF

Winner: Association of Field Ornithologists Best Student Paper in 2009

38. Janssen, MH**, Arcese, P, Kyser, TK, Bertram, DF, Williams, TD, McFarlane-Tranquilla, L & Norris, DR. 2009. Pre-breeding diet quality and timing of breeding in a threatened seabird, the Marbled murrelet. Marine Ornithology 37: 33-40. PDF

37. Betini, GS**, Hobson, KA, Wassenaar, L & Norris, DR. 2009. Stable-hydrogen isotope values in songbird nestlings: effects of temperature, body size, and diet. Canadian Journal of Zoology 87: 767-772. PDF

36. Sellick, MJ**, Kyser, TK, Wunder, MB, Chipley, D & Norris, DR. 2009. Geographic variation in strontium and hydrogen isotopes in avian tissues: implications for tracking migration. Public Library of Science, One 4(3): e4735. PDF

35. Sorenson, MC**, Hipfner, JM, Kyser, TK & Norris, DR. 2009. Carry-over effects in a Pacific seabird: stable isotope evidence that non-breeding diet quality influences reproductive success. Journal of Animal Ecology 78: 460-467.PDF

Top 10 most highly cited article in Journal of Animal Ecology for 2009.

34. Franks, SE, Lank, D, Norris, DR, Taylor, CM & Kyser TK. 2009. Stable isotope analysis discriminates age classes of Western, Least, and Semipalmated Sandpipers when plumage methods are unreliable. Journal of Field Ornithology 80: 51-63. PDF

Top 25 most downloaded articles that were published in 2009

2008

33. Wunder, MB & Norris DR. 2008. Improved estimates of certainty in stable isotope based geographic assignments for tracking migratory animals. Ecological Applications 18: 549-559. PDF.

32. Jones, J, Norris, DR, Girvan, MK, Barg, JJ, Kyser, TK & Robertson, RJ. 2008. Migratory connectivity and population trend in a vulnerable songbird. Condor 110: 538-544. PDF

31. Wunder, MB & Norris, DR. 2008. Analysis and design of isotope-based studies of migratory animals. Pages 107-128 In: Tracking Animal Migration using Stable Isotopes (Eds. KA Hobson & LI Wassenaar). Elsevier, New York.

30. Hobson, KA & Norris, DR. 2008. Animal migration: a context for using new techniques and approaches. Pages 1-20 In: Tracking Animal Migration using Stable Isotopes (Eds. KA Hobson & LI Wassenaar). Elsevier, New York.

29. Kelly, JF, Bearhop, S, Bowen, GJ, Hobson, K, Norris, DR, Wassenaar, LI, West, J, Wunder, MB. 2008. Future directions and challenges for using stable isotopes in advancing terrestrial animal migration research. Pages 129-140 In: Tracking Animal Migration using Stable Isotopes (Eds. KA Hobson & LI Wassenaar). Elsevier, New York.

28. Durrant, KL, Marra, PP, Colbeck, GJ, Gibbs, HL, Hobson, KA, Norris DR, Bernik, B, Lloyd, VL, & Fleischer, RC. 2008. Parasite assemblages distinguish populations of a migratory passerine on its breeding grounds. Journal of Zoology 274: 318-326. PDF

2007

27. Wilson, S, Norris, DR, Wilson, A & Arcese, P. 2007. Experience and density affect the ability of a temperate songbird to respond to future variation in climate. Proceedings of the Royal Society, London: Biological Sciences 274: 2669-2675.PDF

26. Martin, TG, Chades, I, Arcese, P, Marra, PP, Possingham, HP & Norris DR. 2007. Optimal conservation of migratory species. Public Library of Science, One 2(8): e751. PDF

25. Taylor, CM & Norris, DR. 2007. Predicting conditions for migration: effects of density-dependence and habitat quality. Biology Letters 3: 280-283. PDF

24. Norris, DR, Arcese, P, Preikshot, D, Bertram, DF & Kyser, TK. 2007. Diet reconstruction and historic population dynamics in a threatened seabird. Journal of Applied Ecology 44: 875-884. PDF

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23. Norris, DR, Marra, PP, Ratcliffe, LM, Kyser, TK & Montgomerie, R. 2007. Continent-wide variation in feather colour of a migratory songbird in relation to body condition and moulting locality. Biology Letters 3: 16-19. PDF

22. Norris, DR & Marra, PP. 2007. Seasonal interactions, habitat quality and population dynamics in migratory birds. Condor 109: 535-547. PDF

21. Langin, KM, Reudink, MW, Marra, PP, Norris, DR, Kyser, TK & Ratcliffe, LM. 2007. Hydrogen isotopic composition of known-origin migratory birds: implications for geographic assignment. Oecologia 152: 449-457. PDF

20. Girvan, MK, Jones, J, Norris, DR, Barg, JJ, Kyser, TK & Robertson, RJ. 2007. Long-distance dispersal patterns of male Cerulean Warblers (Dendroica cerulean) measured by stable-hydrogen isotopes. Avian Conservation & Ecology 2(2): 3. PDF

19. Norris, DR, Lank, DB, Pither, J, Chipley, D, Ydenberg, RC & Kyser, TK. 2007. Trace elements identify wintering populations of a migratory shorebird. Canadian Journal of Zoology 85: 579-583. PDF

2006

18. Norris, DR & Taylor, CM. 2006. Predicting the consequences of carry-over effects in migratory animals. Biology Letters 2: 148-151. PDF

17. Marra, PP, Norris, DR, Haig, SM, Webster, MS & Royle, JA. 2006. Migratory connectivity. Pages 157-183 In: Connectivity Conservation (Eds. KR Crooks & M Sanjayan), Cambridge University Press, New York.

16. Boulet, M & Norris, DR. 2006. The present and past of migratory connectivity. Ornithological Monographs 61: 1-13. PDF

15. Norris, DR, Wunder, MB & Boulet, M. 2006. Perspectives on migratory connectivity. Ornithological Monographs 61: 79-88. PDF

14. Norris, DR, Marra, PP, Bowen, GJ, Ratcliffe, LM, Royle, JA & Kyser, TK. 2006. Migratory connectivity of a widely distributed Nearctic-Neotropical songbird, the American redstart. Ornithological Monographs 61: 14-28. PDF

13. Langin, KM, Norris, DR, Kyser, TK, Marra, PP & Ratcliffe, LM. 2006. Capital versus income breeding in a migratory passerine bird: evidence from stable isotopes. Canadian Journal of Zoology 84: 947-953. PDF

1999-2005

12. Stutchbury, BJM, Norris, DR, Pitcher, TE, Tuttle, EM & Gonsar, RE. 2005. Off-territory forays and their relation to extra-pair fertilization success. Journal of Avian Biology 36: 471-477. PDF

11. Norris, DR. 2005. Carry-over effects and habitat quality in migratory animals. Oikos 109: 178-186. PDF

10. Norris, DR, Marra, PP, Kyser, TK & Ratcliffe, LM. 2005. Tracking habitat use in a long-distance migratory bird using stable-carbon isotopes in blood. Journal of Avian Biology 36: 164-170. PDF

9. Norris, DR, Marra, PP, Kyser, TK, Montgomerie, R & Ratcliffe, LM. 2004. Reproductive effort, molting latitude and feather color in a migratory songbird. Science 306: 1249-1250. PDF

8. Norris, DR, Marra, PP, Kyser, TK, Sherry, TW & Ratcliffe, LM. 2004. Tropical winter habitat limits reproductive success on the temperate breeding grounds in a migratory bird. Proceedings of the Royal Society, London: Biological Sciences 271: 59-64. PDF

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7. Norris, DR & Stutchbury, BJM. 2002. Sexual differences in the gap-crossing ability of a forest songbird in a fragmented landscape revealed through radiotracking. The Auk 119: 528-532. PDF

6. Fedy, BC, Norris, DR & Stutchbury, BJM. 2002. Do male Hooded warblers guard their mates when their paternity is most at risk? Journal of Field Ornithology 73: 420-426. PDF

5. Buehler, DM, Norris, DR, Stutchbury, BJM & Kopysh, NK. 2002. Food supply and parental feeding rates of Hooded Warblers in forest fragments. Wilson Bulletin 114: 122-127. PDF

4. Norris, DR, Theberge, JB & Theberge, MT. 2002. Forest composition around of Wolf dens in eastern Algonquin Provincial Park, Ontario. Canadian Journal of Zoology 80: 866-872. PDF

3. Norris, DR & Stutchbury, BJM. 2001. Extra-territorial movements of a forest songbird in a fragmented landscape. Conservation Biology 15: 729-736. PDF

2. Norris, DR, Stutchbury, BJM. & Pitcher, T.E. 2000. The spatial response of male Hooded Warblers to edges in isolated fragments. Condor 102: 595-600. [PDF]

1. Cook, SJ, Norris, DR & Theberge, JB. 1999. Winter spatial dynamics of a migratory Wolf population in South-central Ontario, 1990-1995. Canadian Journal of Zoology 77: 1740-1750. PDF

photo: Evelyn Norris

Norris Lab