Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13484 |
Organism activity levels predict marine invertebrate survival during ancient global change extinctions | |
Clapham, Matthew E. | |
2017-04-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Multistressor global change, the combined influence of ocean warming, acidification, and deoxygenation, poses a serious threat to marine organisms. Experimental studies imply that organisms with higher levels of activity should be more resilient, but testing this prediction and understanding organism vulnerability at a global scale, over evolutionary timescales, and in natural ecosystems remain challenging. The fossil record, which contains multiple extinctions triggered by multistressor global change, is ideally suited for testing hypotheses at broad geographic, taxonomic, and temporal scales. Here, I assess the importance of activity level for survival of well-skeletonized benthic marine invertebrates over a 100-million-year-long interval (Permian to Jurassic periods) containing four global change extinctions, including the end-Permian and end-Triassic mass extinctions. More active organisms, based on a semiquantitative score incorporating feeding and motility, were significantly more likely to survive during three of the four extinction events (Guadalupian, end-Permian, and end-Triassic). In contrast, activity was not an important control on survival during nonextinction intervals. Both the end-Permian and end-Triassic mass extinctions also triggered abrupt shifts to increased dominance by more active organisms. Although mean activity gradually returned toward pre- extinction values, the net result was a permanent ratcheting of ecosystem-wide activity to higher levels. Selectivity patterns during ancient global change extinctions confirm the hypothesis that higher activity, a proxy for respiratory physiology, is a fundamental control on survival, although the roles of specific physiological traits (such as extracellular pCO(2) or aerobic scope) cannot be distinguished. Modern marine ecosystems are dominated by more active organisms, in part because of selectivity ratcheting during these ancient extinctions, so on average may be less vulnerable to global change stressors than ancient counterparts. However, ancient extinctions demonstrate that even active organisms can suffer major extinction when the intensity of environmental disruption is intense. |
英文关键词 | climate change end-Permian mass extinction end-Triassic mass extinction hypoxia ocean acidification paleontology |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396836800010 |
WOS关键词 | PERMIAN MASS EXTINCTION ; OCEAN ACIDIFICATION ; CLIMATE-CHANGE ; ANOXIC EVENT ; THEORETICAL ECOSPACE ; CARBON-CYCLE ; EVOLUTION ; RATES ; ASSEMBLAGES ; ECOSYSTEMS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/16700 |
专题 | 气候变化 资源环境科学 |
作者单位 | Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA |
推荐引用方式 GB/T 7714 | Clapham, Matthew E.. Organism activity levels predict marine invertebrate survival during ancient global change extinctions[J]. GLOBAL CHANGE BIOLOGY,2017,23(4). |
APA | Clapham, Matthew E..(2017).Organism activity levels predict marine invertebrate survival during ancient global change extinctions.GLOBAL CHANGE BIOLOGY,23(4). |
MLA | Clapham, Matthew E.."Organism activity levels predict marine invertebrate survival during ancient global change extinctions".GLOBAL CHANGE BIOLOGY 23.4(2017). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Clapham, Matthew E.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Clapham, Matthew E.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Clapham, Matthew E.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论