Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fevo.2017.00110 |
The Multidimensional Stoichiometric Niche | |
Gonzalez, Angelica L.1; Dezerald, Olivier1; Marquet, Pablo A.2,3,4; Romero, Gustavo Q.5; Srivastava, Diane S.6 | |
通讯作者 | Gonzalez, Angelica L. |
来源期刊 | FRONTIERS IN ECOLOGY AND EVOLUTION
![]() |
ISSN | 2296-701X |
出版年 | 2017 |
卷号 | 5 |
英文摘要 | The niche concept is essential to understanding how biotic and abiotic factors regulate the abundance and distribution of living entities, and how these organisms utilize, affect and compete for resources in the environment. However, it has been challenging to determine the number and types of important niche dimensions. By contrast, there is strong mechanistic theory and empirical evidence showing that the elemental composition of living organisms shapes ecological systems, from organismal physiology to food web structure. We propose an approach based on a multidimensional elemental view of the ecological niche. Visualizing the stoichiometric composition of individuals in multivariate space permits quantification of niche dimensions within and across species. This approach expands on previous elemental characterizations of plant niches, and adapts metrics of niche volume, overlap and nestedness previously used to quantify isotopic niches. We demonstrate the applicability of the multidimensional stoichiometric niche using data on carbon, nitrogen, and phosphorus of terrestrial and freshwater communities composed by multiple trophic groups. First, we calculated the stoichiometric niche volumes occupied by terrestrial and freshwater food webs, by trophic groups, by individual species, and by individuals within species, which together give a measure of the extent of stoichiometric diversity within and across levels of organization. Then we evaluated complementarity between these stoichiometric niches, through metrics of overlap and nestedness. Our case study showed that vertebrates, invertebrates, and primary producers do not overlap in their stoichiometric niches, and that large areas of stoichiometric space are unoccupied by organisms. Within invertebrates, niche differences emerged between freshwater and terrestrial food webs, and between herbivores and non-herbivores (detritivores and predators). These niche differences were accompanied by changes in the covariance structure of the three elements, suggesting fundamental shifts in organismal physiology and/or structure. We also demonstrate the sensitivity of results to sample size, and suggest that representative sampling is better than rarefaction in characterizing the stoichiometric niche occupied by food webs. Overall, our approach demonstrates that stoichiometric traits provide a common currency to estimate the dimensionality of stoichiometric niches, and help reduce and rationalize the number of axis required to characterize communities. |
英文关键词 | chemical elements ecological stoichiometry food webs multidimensional space niche overlap niche nestedness traits |
类型 | Article |
语种 | 英语 |
国家 | USA ; Chile ; Brazil ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000451589700001 |
WOS关键词 | FUNCTIONAL DIVERSITY ; ORGANISMAL STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; ELEMENTAL STOICHIOMETRY ; NUTRITIONAL CONSTRAINTS ; ATACAMA DESERT ; TRAIT ; ALLOMETRY ; PATTERNS ; GEOMETRY |
WOS类目 | Ecology |
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/2XILL650/199032 |
作者单位 | 1.Rutgers State Univ, Ctr Computat & Integrat Biol, Dept Biol, Camden, NJ 08102 USA; 2.Pontificia Univ Catolica Chile, Dept Ecol, Santiago, Chile; 3.Inst Ecol & Biodivers, Santiago, Chile; 4.Santa Fe Inst, Santa Fe, NM 87501 USA; 5.Univ Estadual Campinas, Dept Biol Anim, Inst Biol, Campinas, SP, Brazil; 6.Univ British Columbia, Dept Zool, Biodivers Res Ctr, Vancouver, BC, Canada |
推荐引用方式 GB/T 7714 | Gonzalez, Angelica L.,Dezerald, Olivier,Marquet, Pablo A.,et al. The Multidimensional Stoichiometric Niche[J],2017,5. |
APA | Gonzalez, Angelica L.,Dezerald, Olivier,Marquet, Pablo A.,Romero, Gustavo Q.,&Srivastava, Diane S..(2017).The Multidimensional Stoichiometric Niche.FRONTIERS IN ECOLOGY AND EVOLUTION,5. |
MLA | Gonzalez, Angelica L.,et al."The Multidimensional Stoichiometric Niche".FRONTIERS IN ECOLOGY AND EVOLUTION 5(2017). |
条目包含的文件 | 条目无相关文件。 |
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。