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Temporal patterns of energy equivalence in temperate soil invertebrates.

ABSTRACT: The question whether total population energy use is invariant to species body size (the energy equivalence hypothesis) is central to metabolic ecology and continues to be controversial. While recent comparative field work and meta-analyses pointed to systematic deviations of the underlying allometric scaling laws from predictions of metabolic theory none of these studies included the variability of metabolic scaling in ecological time. Here we used extensive data on the invertebrate soil fauna of Kampinos National Park (Poland) obtained from six consecutive quantitative sampling seasons to show that phylogenetically corrected species density-body weight and population energy use-body weight relationships across all soil fauna species and within trophic groups and body weight classes were highly variable in time. On average, population energy use tended to increase with species body weight in decomposers and phytophages, but not in predators. Despite these trends, our data do not exclude the possibility that energy equivalence marks the central tendency of energy use in the edaphon. Our results highlight the need for long-term studies on energy use to unequivocally assess predictions of metabolic theory.

SUBMITTER: Ulrich W

PROVIDER: S-EPMC4553154 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Temporal patterns of energy equivalence in temperate soil invertebrates.

Ulrich Werner W Hoste-Danyłow Alexia A Faleńczyk-Koziróg Katarzyna K Hajdamowicz Izabela I Ilieva-Makulec Krassimira K Olejniczak Izabella I Stańska Marzena M Wytwer Jolanta J

Oecologia 20150423 1

The question whether total population energy use is invariant to species body size (the energy equivalence hypothesis) is central to metabolic ecology and continues to be controversial. While recent comparative field work and meta-analyses pointed to systematic deviations of the underlying allometric scaling laws from predictions of metabolic theory none of these studies included the variability of metabolic scaling in ecological time. Here we used extensive data on the invertebrate soil fauna o ...[more]

PMID: 25903389

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Dataset Information

Temporal patterns of energy equivalence in temperate soil invertebrates.

Publications

Temporal patterns of energy equivalence in temperate soil invertebrates.

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