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摘要

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Pictured is the aftermath of a snowstorm in the Sonoran Desert. Extreme weather events may become common as a consequence of climate change, challenging organisms' abilities to adapt. Carlos A. Botero et al. modeled various evolutionary adaptation strategies that organisms may employ to protect themselves from thermal stress. The results suggest that although populations can often cope with large changes in environmental conditions, occasionally climate conditions may exceed organisms' ability to adapt and reach an evolutionary tipping point, beyond which the population may collapse. According to the authors, the results also suggest a theoretical framework to explore how variability in environmental conditions may affect the viability of natural populations. See the article by Botero et al. on pages 184-189. Image by Krieger Conradt (photographer).

http://www.pnas.org/content/112/1.cover-expansion

授权协议

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描述Cover of PNAS issue 112/1.
来源Image courtesy of Krieger Conradt.
条目Proceedings of the National Academy of Sciences
有限使用Cover image only.
低分辨率Yes
用途The image serves as the primary means of visual identification of PNAS volume 112.
無等效品The image cannot be replaced by a free image.
其他信息
Fair use合理使用Proceedings of the National Academy of Sciences上下文中受版權保護的材料//zh.wikipedia.org/wiki/File:PNAS_cover.gif

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当前2015年5月1日 (五) 02:322015年5月1日 (五) 02:32版本的缩略图200 × 268(35 KB)Koala0090留言 | 贡献{{Non-free use rationale | Article = Proceedings of the National Academy of Sciences | Description = Cover of PNAS issue 112/1. | Source = Image courtesy of Krieger Conradt. | Portion = Cover image only. | Low r...

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