Taxonomic variation in size-density relationships challenges the notion of energy equivalence

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11620%2F11%3A10118681" target="_blank" >RIV/00216208:11620/11:10118681 - isvavai.cz</a>
Result on the web
<a href="http://rsbl.royalsocietypublishing.org/content/7/4/615.abstract" target="_blank" >http://rsbl.royalsocietypublishing.org/content/7/4/615.abstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1098/rsbl.2011.0128" target="_blank" >10.1098/rsbl.2011.0128</a>

Result language
angličtina
Original language name
Taxonomic variation in size-density relationships challenges the notion of energy equivalence
Original language description
The relationship between body mass and abundance is a major focus for research in macroecology. The form of this relationship has been suggested to re?ect the partitioning of energy among species. We revisit classical datasets to show that size - densityrelationships vary systematically among taxonomic groups, with most variation occurring at the order level. We use this knowledge to make a novel test of the ''energy equivalence rule'', at the taxonomic scale appropriate for the data. We ?nd no obviousrelationship between order-speci?c exponents for abundance and metabolic rate, although most orders show substantially shallower (less negative) scaling than predicted by energy equivalence. This ?nding implies greater energy ?ux among larger-bodied animals, with the largest species using two orders of magnitude more energy than the smallest. Our results reject the traditional interpretation of energy equivalence as a predictive rule. However, some variation in size -density exponents i
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EH - Ecology - communities
OECD FORD branch
—

Project
<a href="/en/project/GAP505%2F11%2F2387" target="_blank" >GAP505/11/2387: Macroecology beyond species richness: reconciling ecological and evolutionary processes driving spatial variation of biodiversity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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