Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2010.11.007 |
Habitat specificity can blur the predictions of species-energy theory: A case study of tenebrionid beetles adapted to aridity | |
Carrara, R.1,2; Vazquez, D. P.3,4; Flores, G. E.1 | |
通讯作者 | Carrara, R. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
出版年 | 2011 |
卷号 | 75期号:8页码:703-710 |
英文摘要 | Species energy theory predicts a positive relationship between species richness and energy. The mechanism assumed by this theory is that high energy promotes high population abundance, which in turn promotes high species richness. Evaluations of this mechanism have rendered conflicting evidence, suggesting that more effort is needed to understand the theory’s limitations. Several studies have addressed these limitations, contributing to expand the theory’s scope by incorporating energy variation, whereas others have demonstrated scale dependence of the more individuals hypothesis. We propose that another limitation of this theory is related to its application to groups of species with strong habitat specificity. We suggest that the expected relationship between energy and richness is not necessarily positive at large scales for groups of species adapted to harsh environments. Using data on tenebrionid beetles from arid areas of southern South America, we contrasted four hypotheses that lead to contrasting predictions about the strength and direction of the species energy relationship on tenebrionid richness. We found a negative relationship between richness and energy availability. We propose that this negative relationship is the result of a constraint in the mechanisms assumed by species energy theory because organisms evolve adaptations to survive climatic harshness, which influences population abundances. (C) 2010 Elsevier Ltd. All rights reserved. |
英文关键词 | Darkling beetles Deserts Energy availability Metabolic rates Species-energy relationship |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000291624200005 |
WOS关键词 | RICHNESS ; WATER ; PATTERNS ; SCALE ; PRODUCTIVITY ; PHYSIOLOGY ; ABUNDANCE ; TEMPERATURE ; ADAPTATION ; METABOLISM |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/168891 |
作者单位 | 1.Consejo Nacl Invest Cient & Tecn, Inst Argentine Invest Zonas Aridas, Entomol Lab, RA-5500 Mendoza, Argentina; 2.Univ Nacl Cuyo, Ctr Univ, PROBIOL, RA-5500 Mendoza, Argentina; 3.Consejo Nacl Invest Cient & Tecn, Inst Argentine Invest Zonas Aridas, Lab Interacc Ecol, RA-5500 Mendoza, Argentina; 4.Univ Nacl Cuyo, Ctr Univ, Inst Ciencias Biol, RA-5500 Mendoza, Argentina |
推荐引用方式 GB/T 7714 | Carrara, R.,Vazquez, D. P.,Flores, G. E.. Habitat specificity can blur the predictions of species-energy theory: A case study of tenebrionid beetles adapted to aridity[J],2011,75(8):703-710. |
APA | Carrara, R.,Vazquez, D. P.,&Flores, G. E..(2011).Habitat specificity can blur the predictions of species-energy theory: A case study of tenebrionid beetles adapted to aridity.JOURNAL OF ARID ENVIRONMENTS,75(8),703-710. |
MLA | Carrara, R.,et al."Habitat specificity can blur the predictions of species-energy theory: A case study of tenebrionid beetles adapted to aridity".JOURNAL OF ARID ENVIRONMENTS 75.8(2011):703-710. |
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