Carryover effects associated with winter location affect fitness, social status, and population dynamics in a long-distance migrant.

摘要: AbstractWe used observations of individually marked female black brant geese (Branta bernicla nigricans; brant) at three wintering lagoons on the Pacific coast Baja California—Laguna San Ignacio (LSI), Laguna Ojo de Liebre (LOL), and Bahia Quintin (BSQ)—and Tutakoke River breeding colony in Alaska to assess hypotheses about carryover effects distribution individuals among areas. We estimated transition probabilities from locations nonbreeding by using multistratum robust-design capture-mark-recapture models. also examined effect migration areas hypothesis that family groups occupied higher-quality locations. 4,538 unique our analysis relationship between winter location probability. All competitive models probability contained additive 1997–1998 El Nino–Southern Oscillation (...