Shorebird migration in the face of climate change: potential shifts in migration phenology and resource availability

Studies in Avian Biology
By:  and 

Links

Abstract

Changes in temperature and seasonality resulting from climate change are heterogeneous, potentially altering important sources of natural selection acting on species phenology. Some species have apparently adapted to climate change but the ability of most species to adapt remains unknown. The life history strategies of migratory animals are dictated by seasonal factors, which makes these species particularly vulnerable to heterogeneous changes in climate and phenology. Here, we examine the phenology of migratory shorebirds, their habitats, and primary food resources, and we hypothesize how climate change may affect migrants through predicted changes in phenology. Daily abundance of shorebirds at stopover sites was correlated with local phenology and peaked immediately prior to peaks in invertebrate food resources. A close relationship between migrant and invertebrate phenology indicates that shorebirds may be vulnerable to changes in seasonality driven by climate change. It is possible that shifts in migrant and invertebrate phenology will be congruent in magnitude and direction, but because migration phenology is dependent on a suite of ecological factors, any response is likely to occur at a larger temporal scale and may lag behind the response of invertebrate food resources. The resulting lack of sufficient access to food at stopover habitats may cause migrants to extend migration and have cascading effects throughout their life cycle. If the heterogeneous nature of climate change results in uneven changes in phenology between migrants and their prey, it may threaten the long-term viability of migratory populations

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Shorebird migration in the face of climate change: potential shifts in migration phenology and resource availability
Series title Studies in Avian Biology
ISBN 9781482240313 1482240319
Volume 47
Year Published 2015
Language English
Publisher CRC Press
Publisher location Boca Raton, FL
Contributing office(s) Coop Res Unit Seattle
Description 15 p.
Larger Work Type Book
Larger Work Subtype Monograph
Larger Work Title Phenological synchrony and bird migration: changing climate and seasonal resources in North America
First page 145
Last page 159
Country United States
State South Dakota
Online Only (Y/N) N
Additional Online Files (Y/N) N