Arid
DOI10.1650/CONDOR-14-1.1
Synergistic effects of spring temperatures and land cover on nest survival of urban birds
Becker, Miles E.1; Weisberg, Peter J.2
通讯作者Becker, Miles E.
来源期刊CONDOR
ISSN0010-5422
EISSN1938-5129
出版年2015
卷号117期号:1页码:18-30
英文摘要

Climate change has the potential to influence avian population dynamics through nest-fate sensitivity to temperatures during the breeding season. Nest fate also varies across spatially heterogeneous habitat, and changing land uses may independently introduce stressors on reproductive outcome. Identifying the individual and synergistic effects of climate change and land-use change is necessary for understanding the impact of global change on native species. We studied the nest fate of 3 sympatric species breeding in urban habitat in an arid region of the western United States. We monitored nests (n = 371) of American Robin (Turdus migratorius), Mourning Dove (Zenaida macroura), and Black-headed Grosbeak (Pheucticus melanocephalus) over 4 yr on an urban-to-rural gradient and analyzed nest fate in relation to temperatures at the time of egg laying and after eggs hatched. Habitat measurements included nest height and the amounts of canopy cover and impervious surfaces at 3 spatial scales of 20-m, 100-m, and 500-m radii from the nest. Our data most strongly supported models that included temperature deviation after hatching, nest stage, fine-scale canopy cover, and pedestrian traffic. Nest survival increased at slight temperature increases during the nestling stage, which suggests that in a climate-change context, moderate warming in spring temperatures may be beneficial for some breeding birds. Nests were more likely to survive at locations with more canopy cover in a 20-m radius and at sites with more pedestrian traffic, which suggests that increasing cover of native riparian tree canopy at fine scales may enhance habitat quality in multiuse urban reserves. Our results demonstrate that effects of climate change on avian populations must be considered synergistically with land-use and land-cover characteristics of the urban landscape, including tree canopy cover and level of human disturbance.


英文关键词American Robin Black-headed Grosbeak Mourning Dove nest survival population dynamics temperature variation urban ecology
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000351479200003
WOS关键词CLIMATE-CHANGE ; MORTALITY EVENTS ; HABITAT ; WEATHER ; POPULATION ; INCUBATION ; PREDATION ; FOOD ; URBANIZATION ; BIODIVERSITY
WOS类目Ornithology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186581
作者单位1.Univ Nevada, Ecol Evolut & Conservat Biol Grad Program, Reno, NV 89557 USA;
2.Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA
推荐引用方式
GB/T 7714
Becker, Miles E.,Weisberg, Peter J.. Synergistic effects of spring temperatures and land cover on nest survival of urban birds[J],2015,117(1):18-30.
APA Becker, Miles E.,&Weisberg, Peter J..(2015).Synergistic effects of spring temperatures and land cover on nest survival of urban birds.CONDOR,117(1),18-30.
MLA Becker, Miles E.,et al."Synergistic effects of spring temperatures and land cover on nest survival of urban birds".CONDOR 117.1(2015):18-30.
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