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042 _adc
100 1 0 _aSynodinos, Alexis D.
_eauthor
_92127
700 1 0 _aHaegeman, Bart
_eauthor
700 1 0 _aSentis, Arnaud
_eauthor
700 1 0 _aMontoya, José M.
_eauthor
245 0 0 _aTheory of temperature-dependent consumer-resource interactions
260 _c2021-08-01.
500 _a/pmc/articles/PMC7614043/
500 _a/pubmed/34120390
520 _aChanges in temperature affect consumer-resource interactions, which underpin the functioning of ecosystems. However, existing studies report contrasting predictions regarding the impacts of warming on biological rates and community dynamics. To improve prediction accuracy and comparability, we develop an approach that combines sensitivity analysis and aggregate parameters. The former determines which biological parameters impact the community most strongly. The use of aggregate parameters (i.e., maximal energetic efficiency, ρ, and interaction strength, κ), that combine multiple biological parameters, increases explanatory power and reduces the complexity of theoretical analyses. We illustrate the approach using empirically derived thermal dependence curves of biological rates and applying it to consumer-resource biomass ratio and community stability. Based on our analyses, we generate four predictions: (1) resource growth rate regulates biomass distributions at mild temperatures, (2) interaction strength alone determines the thermal boundaries of the community, (3) warming destabilises dynamics at low and mild temperatures only and (4) interactions strength must decrease faster than maximal energetic efficiency for warming to stabilise dynamics. We argue for the potential benefits of directly working with the aggregate parameters to increase the accuracy of predictions on warming impacts on food webs and promote cross-system comparisons.
540 _a
546 _aen
690 _aArticle
655 7 _aText
_2local
786 0 _nEcol Lett
856 4 1 _uhttp://dx.doi.org/10.1111/ele.13780
_zConnect to this object online.
999 _c2171
_d2171