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arXiv · 1004.3951

Scaling Population Cycles of Herbivores and Carnivores

Christian Mulder·A. Jan Hendriks
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Abstract

Periodicity in population dynamics is a fundamental issue. In addition to current species-specific analyses, allometry facilitates understanding of limit cycles amongst different species. So far, body-size regressions have been derived for the oscillation period of the population densities of warm-blooded species, in particular herbivores. Here, we extend the allometric analysis to other clades, allowing for a comparison between the obtained slopes and intercepts. The oscillation periods were derived from databases and original studies to cover a broad range of conditions and species. Then, values were related to specific body size by regression analysis. For different groups of herbivorous species, the oscillation period increased as a function of individual mass as a power law with exponents of 0.11-0.27. The intercepts of the resulting linear regressions indicated that cycle times for equally-sized species increased from homeotherms up to invertebrates. Overall, cycle times for predators did not scale to body size. Implications for these differences were addressed in the light of intra- and interspecific delays.

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Christian Mulder, A. Jan Hendriks. 2010-04-22. Scaling Population Cycles of Herbivores and Carnivores. https://arxiv.org/abs/1004.3951

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