Impact of a century of climate change on small-mammal communities in Yosemite National Park, USA
In: Science, 2015
Online
academicJournal
Zugriff:
We provide a century-scale view of small-mammal responses to global warming, without confounding effects of land-use change, by repeating Grinnell's early-20th century survey across a 3000-meter-elevation gradient that spans Yosemite National Park, California, USA. Using occupancy modeling to control for variation in detectability, we show substantial (∼500 meters on average) upward changes in elevational limits for half of 28 species monitored, consistent with the observed ∼3°C increase in minimum temperatures. Formerly low-elevation species expanded their ranges and high-elevation species contracted theirs, leading to changed community composition at mid- and high elevations. Elevational replacement among congeners changed because species' responses were idiosyncratic. Though some high-elevation species are threatened, protection of elevation gradients allows other species to respond via migration.
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Impact of a century of climate change on small-mammal communities in Yosemite National Park, USA
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Autor/in / Beteiligte Person: | Moritz, Craig ; Patton, James L. ; Conroy, Chris J. ; Parra, Juan L. ; White, Gary C. ; Beissinger, Steven R. |
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Zeitschrift: | Science, 2015 |
Veröffentlichung: | American Association for the Advancement of Science, 2015 |
Medientyp: | academicJournal |
ISSN: | 0036-8075 (print) |
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