PhD Candidate (2013-present)
Key to effective wildlife conservation and management is knowledge of the demographic and environmental determinants of population growth. For migratory animals, events and conditions during the breeding season, en route during migration, and winter may all act to regulate population growth. Little, however, is known of the role of the non-breeding season for most migratory species. For my PhD, I will combine year-round movement data with a long-term demographic study of an island-breeding population of Savannah Sparrows (Passerculus sandwichensis) in the outer Bay of Fundy to evaluate 1) the relative contributions of survival, fecundity, immigration, and emigration to population growth; and 2) how these vital rates are influenced by variation in environmental conditions at all stages of the annual cycle.
Woodworth, BK, Wheelwright, NT, Newman, AEM, Schaub, M & Norris, DR. 2017. Winter temperatures limit population growth rate of a migratory songbird. Accepted: Nature Communications
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.
Mitchell, GW, Woodworth, BK, Taylor, PD & Norris, DR. 2015. Age specific differences in flight duration and groundspeed are driven by wind conditions aloft: an automated telemetry study. Movement Ecology 3:19.
DeLuca, WV, Woodworth, BK, Rimmer, C, Taylor, PD, Marra, PP, McFarland, K, Bearhop, S, Mackenzie, SA & Norris, DR. 2015. Transoceanic migration by a 12g songbird. Biology Letters 11: 20141045.
Woodworth, B.K., Mitchell, G.W., Norris, D.R., Francis, C.M., and Taylor, P.D. 2015. Patterns and correlates of songbird movements at an ecological barrier during autumn migration assessed using landscape- and regional-scale automated radio-telemetry. Ibis 157: 326-339.
Woodworth, BK, Francis, CM & Taylor, PD. 2014. Inland flights of young Red-eyed Vireos (Vireo olivaceus) in relation to survival and habitat in a coastal stopover landscape. Journal of Avian Biology 45: 387-395.