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Consumer-resource body-size relationships in natural food webs

Brose, Ulrich ; Jonsson, Tomas ; Berlow, Eric L. ; Warren, Philip ; Banasek-Richter, Carolin ; Bersier, Louis-Félix ; Blanchard, Julia L. ; Brey, Thomas ; Carpenter, Stephen R. ; Blandenier, Marie-France Cattin ; Cushing, Lara ; Dawah, Hassan Ali ; Dell, Tony ; Edwards, Francois ; Harper-Smith, Sarah ; Jacob, Ute ; Ledger, Mark E. ; Martinez, Neo D. ; Memmott, Jane ; Mintenbeck, Katja ; Pinnegar, John K. ; Rall, Björn C. ; Rayner, Thomas S. ; Reuman, Daniel C. ; Ruess, Liliane ; Ulrich, Werner ; Williams, Richard J. ; Woodward, Guy ; Cohen, Joel E.

Ecology (Durham), 2006-10, Vol.87 (10), p.2411-2417 [Periódico revisado por pares]

Washington, DC: Ecological Society of America

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Título:
Consumer-resource body-size relationships in natural food webs
Autor: Brose, Ulrich ; Jonsson, Tomas ; Berlow, Eric L. ; Warren, Philip ; Banasek-Richter, Carolin ; Bersier, Louis-Félix ; Blanchard, Julia L. ; Brey, Thomas ; Carpenter, Stephen R. ; Blandenier, Marie-France Cattin ; Cushing, Lara ; Dawah, Hassan Ali ; Dell, Tony ; Edwards, Francois ; Harper-Smith, Sarah ; Jacob, Ute ; Ledger, Mark E. ; Martinez, Neo D. ; Memmott, Jane ; Mintenbeck, Katja ; Pinnegar, John K. ; Rall, Björn C. ; Rayner, Thomas S. ; Reuman, Daniel C. ; Ruess, Liliane ; Ulrich, Werner ; Williams, Richard J. ; Woodward, Guy ; Cohen, Joel E.
Assuntos: allometry ; Animal and plant ecology ; Animal ecology ; Animal, plant and microbial ecology ; Animals ; Aquatic habitats ; aquatic organisms ; Biological and medical sciences ; body length ; body mass ; Body size ; Body Size - physiology ; body weight ; body-size ratio ; carnivores ; detritivores ; Ecosystem ; Ecosystems ; Food Chain ; Food chains ; Food webs ; Fresh Water ; freshwater ; Fundamental and applied biological sciences. Psychology ; General aspects ; Habitats ; Herbivores ; host-parasite relationships ; Invertebrates ; Linear regression ; Natural sciences ; Naturvetenskap ; Oceans and Seas ; parasitoid–host ; Predation ; predator-prey relationships ; Predators ; Predatory Behavior - physiology ; predator–prey ; Size ; Studies ; Trophic relationships ; Vertebrates
É parte de: Ecology (Durham), 2006-10, Vol.87 (10), p.2411-2417
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: It has been suggested that differences in body size between consumer and resource species may have important implications for interaction strengths, population dynamics, and eventually food web structure, function, and evolution. Still, the general distribution of consumer-resource body-size ratios in real ecosystems, and whether they vary systematically among habitats or broad taxonomic groups, is poorly understood. Using a unique global database on consumer and resource body sizes, we show that the mean body-size ratios of aquatic herbivorous and detritivorous consumers are several orders of magnitude larger than those of carnivorous predators. Carnivorous predator-prey body-size ratios vary across different habitats and predator and prey types (invertebrates, ectotherm, and endotherm vertebrates). Predator-prey body-size ratios are on average significantly higher (1) in freshwater habitats than in marine or terrestrial habitats, (2) for vertebrate than for invertebrate predators, and (3) for invertebrate than for ectotherm vertebrate prey. If recent studies that relate body-size ratios to interaction strengths are general, our results suggest that mean consumer-resource interaction strengths may vary systematically across different habitat categories and consumer types.
Editor: Washington, DC: Ecological Society of America
Idioma: Inglês

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Consumer-resource body-size relationships in natural food webs

Washington, DC: Ecological Society of America

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