气候变化领域集成服务门户(CCPortal): Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith's Longspurs

CCPortal

DOI	10.5751/ACE-02629-190113
	Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith's Longspurs
	Will, Alexis; McFarland, Heather; Latty, Christopher; Powell, Abby
发表日期	2024
ISSN	1712-6568
起始页码	19
结束页码	1
卷号	19 期号:1
英文摘要	. Climate change is having a disproportionate impact on the Arctic. For Arctic breeding birds, basic knowledge of their annual cycle, specifically the timing, route, and movement behavior of migration, is needed to understand when and where populations may experience threats. We used a combination of geolocators and stable isotope analysis to identify route and timing of migration in Smith's Longspurs (Calcarius pictus) that breed in Alaska's Brooks Range. We trapped males on their breeding grounds from 2011 to 2014 and collected head feathers for stable isotopes of hydrogen (62H). We deployed 22 geolocators on a subset of individuals and retrieved four, which all overwintered in southern Texas. Individual start dates for fall migration based on geolocators were more variable than for the spring, and individuals were highly mobile while on their wintering grounds. Geolocators and stable isotope values were comparable across years and indicated that birds from the Brooks Range undergo their pre-nuptial molt in central Canada. We compared geolocator and stable isotope inferred locations to observations submitted to e-Bird and found that longspurs were distributed farther south during the winter months, but farther north during the spring than most eBird observations. Concurrent deployments of geolocator tags across Smith's Longspurs' breeding range would clarify whether migratory behaviors and routes are population-specific or shared widely across breeding locations.
英文关键词	Calcarius pictus; eBird; feather stable isotopes; migration
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology ; Zoology
WOS类目	Biodiversity Conservation ; Ecology ; Ornithology
WOS记录号	WOS:001221835300001
来源期刊	AVIAN CONSERVATION AND ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296935
作者单位	World Wildlife Fund; University of Alaska System; University of Alaska Fairbanks; University of Alaska System; University of Alaska Fairbanks; United States Department of the Interior; US Fish & Wildlife Service; United States Department of the Interior; United States Geological Survey; State University System of Florida; University of Florida
推荐引用方式 GB/T 7714	Will, Alexis,McFarland, Heather,Latty, Christopher,et al. Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith's Longspurs[J],2024,19(1).
APA	Will, Alexis,McFarland, Heather,Latty, Christopher,&Powell, Abby.(2024).Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith's Longspurs.AVIAN CONSERVATION AND ECOLOGY,19(1).
MLA	Will, Alexis,et al."Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith's Longspurs".AVIAN CONSERVATION AND ECOLOGY 19.1(2024).