A bioenergetic framework for the temperature dependence of trophic interactions

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Gilbert, Benjamin (author)

A bioenergetic framework for the temperature dependence of trophic interactions

Article/chapterEnglish2014

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2014-06-03
Wiley,2014
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:su-106741
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-106741URI
https://doi.org/10.1111/ele.12307DOI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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AuthorCount:17;
Changing temperature can substantially shift ecological communities by altering the strength and stability of trophic interactions. Because many ecological rates are constrained by temperature, new approaches are required to understand how simultaneous changes in multiple rates alter the relative performance of species and their trophic interactions. We develop an energetic approach to identify the relationship between biomass fluxes and standing biomass across trophic levels. Our approach links ecological rates and trophic dynamics to measure temperature-dependent changes to the strength of trophic interactions and determine how these changes alter food web stability. It accomplishes this by using biomass as a common energetic currency and isolating three temperature-dependent processes that are common to all consumer-resource interactions: biomass accumulation of the resource, resource consumption and consumer mortality. Using this framework, we clarify when and how temperature alters consumer to resource biomass ratios, equilibrium resilience, consumer variability, extinction risk and transient vs. equilibrium dynamics. Finally, we characterise key asymmetries in species responses to temperature that produce these distinct dynamic behaviours and identify when they are likely to emerge. Overall, our framework provides a mechanistic and more unified understanding of the temperature dependence of trophic dynamics in terms of ecological rates, biomass ratios and stability.

Subject headings and genre

NATURVETENSKAP Biologi Ekologi hsv//swe
NATURAL SCIENCES Biological Sciences Ecology hsv//eng
Biomass pyramid
climate change
food web
interaction strength
predator prey
stability
temperature
transient dynamics
trophic dynamics

Added entries (persons, corporate bodies, meetings, titles ...)

Tunney, Tyler D. (author)
McCann, Kevin S. (author)
DeLong, John P. (author)
Vasseur, David A. (author)
Savage, Van (author)
Shurin, Jonathan B. (author)
Dell, Anthony I. (author)
Barton, Brandon T. (author)
Harley, Christopher D. G. (author)
Kharouba, Heather M. (author)
Kratina, Pavel (author)
Blanchard, Julia L. (author)
Clements, Christopher (author)
Winder, MonikaStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)mwind (author)
Greig, Hamish S. (author)
O'Connor, Mary I. (author)
Stockholms universitetInstitutionen för ekologi, miljö och botanik (creator_code:org_t)

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In:Ecology Letters: Wiley17:8, s. 902-9141461-023X1461-0248

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By the author/editor: Gilbert, Benjami ...; Tunney, Tyler D.; McCann, Kevin S.; DeLong, John P.; Vasseur, David A ...; Savage, Van; show more...; Shurin, Jonathan ...; Dell, Anthony I.; Barton, Brandon ...; Harley, Christop ...; Kharouba, Heathe ...; Kratina, Pavel; Blanchard, Julia ...; Clements, Christ ...; Winder, Monika; Greig, Hamish S.; O'Connor, Mary I ...; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

Articles in the publication: Ecology Letters

By the university: Stockholm University

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