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Quantifying climate sensitivity and climate-driven change in North American amphibian communities.
Nature Communications ( IF 16.6 ) Pub Date : 2018-09-25 , DOI: 10.1038/s41467-018-06157-6
David A W Miller 1 , Evan H Campbell Grant 2 , Erin Muths 3 , Staci M Amburgey 1, 4 , Michael J Adams 5 , Maxwell B Joseph 6 , J Hardin Waddle 7 , Pieter T J Johnson 6 , Maureen E Ryan 8, 9 , Benedikt R Schmidt 10, 11 , Daniel L Calhoun 12 , Courtney L Davis 1, 4 , Robert N Fisher 13 , David M Green 14 , Blake R Hossack 15 , Tracy A G Rittenhouse 16 , Susan C Walls 17 , Larissa L Bailey 18 , Sam S Cruickshank 10 , Gary M Fellers 19 , Thomas A Gorman 20 , Carola A Haas 20 , Ward Hughson 21 , David S Pilliod 22 , Steven J Price 23 , Andrew M Ray 24 , Walt Sadinski 25 , Daniel Saenz 26 , William J Barichivich 17 , Adrianne Brand 2 , Cheryl S Brehme 13 , Rosi Dagit 27 , Katy S Delaney 28 , Brad M Glorioso 7 , Lee B Kats 29 , Patrick M Kleeman 19 , Christopher A Pearl 5 , Carlton J Rochester 13 , Seth P D Riley 28 , Mark Roth 25 , Brent H Sigafus 30
Affiliation  

Changing climate will impact species' ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited to single species and locations. Here we show that amphibian communities are responsive to climatic variability, using >500,000 time-series observations for 81 species across 86 North American study areas. The effect of climate on local colonization and persistence probabilities varies among eco-regions and depends on local climate, species life-histories, and taxonomic classification. We found that local species richness is most sensitive to changes in water availability during breeding and changes in winter conditions. Based on the relationships we measure, recent changes in climate cannot explain why local species richness of North American amphibians has rapidly declined. However, changing climate does explain why some populations are declining faster than others. Our results provide important insights into how amphibians respond to climate and a general framework for measuring climate impacts on species richness.

中文翻译:

量化北美两栖动物群落的气候敏感性和气候驱动的变化。

只有当环境变化直接影响当地人口的人口结构时,气候变化才会影响物种的分布范围。然而,人口对气候变化反应的测量在很大程度上仅限于单一物种和地点。在这里,我们通过对 86 个北美研究区域的 81 个物种进行超过 500,000 次时间序列观测,展示了两栖动物群落对气候变化的反应。气候对当地定殖和持续概率的影响因生态区域而异,并取决于当地气候、物种生活史和分类学分类。我们发现当地物种丰富度对繁殖期间可用水量的变化和冬季条件的变化最敏感。根据我们测量的关系,最近的气候变化无法解释为什么北美两栖动物的当地物种丰富度迅速下降。然而,气候变化确实解释了为什么有些人口比其他人口下降得更快。我们的研究结果为两栖动物如何应对气候提供了重要见解,并为衡量气候对物种丰富度影响的总体框架提供了重要见解。
更新日期:2018-09-25
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