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Universal temperature and body-mass scaling of feeding rates

Rall, Bjoern C.; Brose, Ulrich; Hartvig, Martin LU ; Kalinkat, Gregor; Schwarzmueller, Florian; Vucic-Pestic, Olivera and Petchey, Owen L. (2012) In Royal Society of London. Philosophical Transactions B. Biological Sciences 367(1605). p.2923-2934
Abstract
Knowledge of feeding rates is the basis to understand interaction strength and subsequently the stability of ecosystems and biodiversity. Feeding rates, as all biological rates, depend on consumer and resource body masses and environmental temperature. Despite five decades of research on functional responses as quantitative models of feeding rates, a unifying framework of how they scale with body masses and temperature is still lacking. This is perplexing, considering that the strength of functional responses (i.e. interaction strengths) is crucially important for the stability of simple consumer-resource systems and the persistence, sustainability and biodiversity of complex communities. Here, we present the largest currently available... (More)
Knowledge of feeding rates is the basis to understand interaction strength and subsequently the stability of ecosystems and biodiversity. Feeding rates, as all biological rates, depend on consumer and resource body masses and environmental temperature. Despite five decades of research on functional responses as quantitative models of feeding rates, a unifying framework of how they scale with body masses and temperature is still lacking. This is perplexing, considering that the strength of functional responses (i.e. interaction strengths) is crucially important for the stability of simple consumer-resource systems and the persistence, sustainability and biodiversity of complex communities. Here, we present the largest currently available database on functional response parameters and their scaling with body mass and temperature. Moreover, these data are integrated across ecosystems and metabolic types of species. Surprisingly, we found general temperature dependencies that differed from the Arrhenius terms predicted by metabolic models. Additionally, the body-mass-scaling relationships were more complex than expected and differed across ecosystems and metabolic types. At local scales (taxonomically narrow groups of consumer-resource pairs), we found hump-shaped deviations from the temperature and body-mass-scaling relationships. Despite the complexity of our results, these body-mass-and temperature-scaling models remain useful as a mechanistic basis for predicting the consequences of warming for interaction strengths, population dynamics and network stability across communities differing in their size structure. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
functional response, warming, body size, interaction strength, metabolic, theory, allometric scaling
in
Royal Society of London. Philosophical Transactions B. Biological Sciences
volume
367
issue
1605
pages
2923 - 2934
publisher
Royal Society
external identifiers
  • wos:000309253400003
  • scopus:84866598087
ISSN
1471-2970
DOI
10.1098/rstb.2012.0242
language
English
LU publication?
yes
id
6a4e716a-f4e7-4602-a2b0-9db557e2318c (old id 3187308)
date added to LUP
2012-12-06 13:44:04
date last changed
2017-11-19 04:03:04
@article{6a4e716a-f4e7-4602-a2b0-9db557e2318c,
  abstract     = {Knowledge of feeding rates is the basis to understand interaction strength and subsequently the stability of ecosystems and biodiversity. Feeding rates, as all biological rates, depend on consumer and resource body masses and environmental temperature. Despite five decades of research on functional responses as quantitative models of feeding rates, a unifying framework of how they scale with body masses and temperature is still lacking. This is perplexing, considering that the strength of functional responses (i.e. interaction strengths) is crucially important for the stability of simple consumer-resource systems and the persistence, sustainability and biodiversity of complex communities. Here, we present the largest currently available database on functional response parameters and their scaling with body mass and temperature. Moreover, these data are integrated across ecosystems and metabolic types of species. Surprisingly, we found general temperature dependencies that differed from the Arrhenius terms predicted by metabolic models. Additionally, the body-mass-scaling relationships were more complex than expected and differed across ecosystems and metabolic types. At local scales (taxonomically narrow groups of consumer-resource pairs), we found hump-shaped deviations from the temperature and body-mass-scaling relationships. Despite the complexity of our results, these body-mass-and temperature-scaling models remain useful as a mechanistic basis for predicting the consequences of warming for interaction strengths, population dynamics and network stability across communities differing in their size structure.},
  author       = {Rall, Bjoern C. and Brose, Ulrich and Hartvig, Martin and Kalinkat, Gregor and Schwarzmueller, Florian and Vucic-Pestic, Olivera and Petchey, Owen L.},
  issn         = {1471-2970},
  keyword      = {functional response,warming,body size,interaction strength,metabolic,theory,allometric scaling},
  language     = {eng},
  number       = {1605},
  pages        = {2923--2934},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Philosophical Transactions B. Biological Sciences},
  title        = {Universal temperature and body-mass scaling of feeding rates},
  url          = {http://dx.doi.org/10.1098/rstb.2012.0242},
  volume       = {367},
  year         = {2012},
}