Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13574 |
Experimental whole-stream warming alters community size structure | |
Nelson, Daniel1; Benstead, Jonathan P.1; Huryn, Alexander D.1; Cross, Wyatt F.2; Hood, James M.3; Johnson, Philip W.4; Junker, James R.2; Gislason, Gisli M.5; Olafsson, Jon S.6 | |
2017-07-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Iceland |
英文摘要 | How ecological communities respond to predicted increases in temperature will determine the extent to which Earth's biodiversity and ecosystem functioning can be maintained into a warmer future. Warming is predicted to alter the structure of natural communities, but robust tests of such predictions require appropriate large-scale manipulations of intact, natural habitat that is open to dispersal processes via exchange with regional species pools. Here, we report results of a two-year whole-stream warming experiment that shifted invertebrate assemblage structure via unanticipated mechanisms, while still conforming to community-level metabolic theory. While warming by 3.8 degrees C decreased invertebrate abundance in the experimental stream by 60% relative to a reference stream, total invertebrate biomass was unchanged. Associated shifts in invertebrate assemblage structure were driven by the arrival of new taxa and a higher proportion of large, warm-adapted species (i.e., snails and predatory dipterans) relative to small-bodied, cold-adapted taxa (e.g., chironomids and oligochaetes). Experimental warming consequently shifted assemblage size spectra in ways that were unexpected, but consistent with thermal optima of taxa in the regional species pool. Higher temperatures increased community-level energy demand, which was presumably satisfied by higher primary production after warming. Our experiment demonstrates how warming reassembles communities within the constraints of energy supply via regional exchange of species that differ in thermal physiological traits. Similar responses will likely mediate impacts of anthropogenic warming on biodiversity and ecosystem function across all ecological communities. |
英文关键词 | body size community structure energy demand metabolic theory stream warming thermal preference |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402514900009 |
WOS关键词 | FRESH-WATER ECOSYSTEMS ; CLIMATE-CHANGE ; BODY-SIZE ; MASS RELATIONSHIPS ; SENTINEL SYSTEMS ; METABOLIC THEORY ; ECOLOGY ; TEMPERATURE ; PHYSIOLOGY ; PSEUDOREPLICATION |
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/16988 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Alabama, Dept Biol Sci, Tuscaloosa, AL 35487 USA; 2.Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA; 3.Ohio State Univ, Dept Ecol Evolut & Organismal Biol, Aquat Ecol Lab, Columbus, OH 43212 USA; 4.Univ Alabama, Dept Civil Construct & Environm Engn, Tuscaloosa, AL 35487 USA; 5.Univ Iceland, Inst Life & Environm Sci, Reykjavik, Iceland; 6.Inst Freshwater Fisheries, Reykjavik, Iceland |
推荐引用方式 GB/T 7714 | Nelson, Daniel,Benstead, Jonathan P.,Huryn, Alexander D.,et al. Experimental whole-stream warming alters community size structure[J]. GLOBAL CHANGE BIOLOGY,2017,23(7). |
APA | Nelson, Daniel.,Benstead, Jonathan P..,Huryn, Alexander D..,Cross, Wyatt F..,Hood, James M..,...&Olafsson, Jon S..(2017).Experimental whole-stream warming alters community size structure.GLOBAL CHANGE BIOLOGY,23(7). |
MLA | Nelson, Daniel,et al."Experimental whole-stream warming alters community size structure".GLOBAL CHANGE BIOLOGY 23.7(2017). |
条目包含的文件 | 条目无相关文件。 |
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