Decoupled spatiotemporal patterns of avian taxonomic and functional diversity
Decoupled spatiotemporal patterns of avian taxonomic and functional diversity
复制标题
鸟类分类和功能多样性的解耦时空模式
DOI:
10.1016/j.cub.2023.01.066
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发表时间:
2023
期刊:
影响因子:
9.2
通讯作者:
Stagge, James H.
中科院分区:
文献类型:
--
作者:
Jarzyna, Marta A.;Stagge, James H.
Each year, seasonal bird migration leads to an immense redistribution of species occurrence and abundances,1,2,3with pervasive, though unclear, consequences for patterns of multi-faceted avian diversity. Here, we uncover stark disparities in spatiotemporal variation between avian taxonomic diversity (TD) and functional diversity (FD) across the continental US. We show that the seasonality of species richness expectedly3follows a latitudinal gradient, whereas seasonality of FD instead manifests a distinct east-west gradient. In the eastern US, the temporal patterns of TD and FD are diametrically opposed. In winter, functional richness is highest despite seasonal species loss, and the remaining most abundant species are amassed in fewer regions of the functional space relative to the rest of the year, likely reflecting decreased resource availability. In contrast, temporal signatures for TD and FD are more congruent in the western US. There, both species and functional richness peak during the breeding season, and species' abundances are more regularly distributed and widely spread across the functional space than during winter. Our results suggest that migratory birds in the western US disproportionately contribute to avian FD by possessing more unique trait characteristics than resident birds,4,5while the primary contribution of migrants in the eastern US is through increasing the regularity of abundances within the functional space relative to the rest of the year. We anticipate that the uncovered complexity of spatiotemporal associations among measures of avian diversity will be the catalyst for adopting an explicitly temporal framework for multi-faceted biodiversity analysis.
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影响因子:
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作者:
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通讯作者:
Gillooly, James F.
影响因子:
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作者:
Jarzyna, Marta A.;Norman, Kari E.;LaMontagne, Jalene M.;Helmus, Matthew R.;Li, Daijiang;Parker, Stephanie M.;Perez Rocha, Mariana;Record, Sydne;Sokol, Eric R.;Zarnetske, Phoebe L.
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Zarnetske, Phoebe L.
影响因子:
0.7
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通讯作者:
Brandl Roland
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Trevor S. Fristoe
通讯作者:
Trevor S. Fristoe
影响因子:
16.6
作者:
Jarzyna MA;Jetz W
通讯作者:
Jetz W