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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/GAP505%2F11%2F2387" target="_blank" >GAP505/11/2387: Limity druhového bohatství: makroekologická analýza evolučních a ekologických procesů podmiňujících diverzitu na povrchu Země</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biology Letters

ISSN

1744-9561

e-ISSN

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Svazek periodika

7

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

615-618

Kód UT WoS článku

000292639100039

EID výsledku v databázi Scopus

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