Stable coexistence of ecologically identical species: conspecific aggregation via reproductive interference

The Journal of Animal Ecology
Lasse Ruokolainen, Ilkka Hanski

Abstract

Stable coexistence of ecologically identical species is not possible according to the established ecological theory. Many coexistence mechanisms have been proposed, but they all involve some form of ecological differentiation among the competing species. The aggregation model of coexistence would predict coexistence of identical species if there would be a mechanism that generates spatially aggregated distributions that are not completely correlated among the species. Our aim is to demonstrate that continued dispersal, triggered by reproductive interference between ecologically identical species, is such a mechanism. This study has been motivated by species using ephemeral patchy resources, such as decomposing fruits, fungal sporophores, carrion, and dung. We analyse an individual-based model with sexual reproduction, in which the progeny develops in ephemeral resource patches and the new generation disperses to a new set of patches. We assume spatially restricted dispersal, that patches differ in detectability, and that unmated females continue dispersal. In the model, reproductive interference (males spend some time searching for and/or attempting to mate with heterospecific females) reduces the mating rate of females, especi...Continue Reading

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Citations

Jan 16, 2018·Molecular Ecology·Cene FišerFlorian Malard
Jul 29, 2018·Evolution; International Journal of Organic Evolution·Leonel Herrera-AlsinaRampal S Etienne
Apr 4, 2019·Evolution; International Journal of Organic Evolution·Grant C McDonaldTommaso Pizzari
Jul 23, 2019·The Journal of Animal Ecology·Mark A McPeek, Adam M Siepielski
Aug 18, 2020·The Journal of Animal Ecology·Daisuke Kyogoku, Hanna Kokko
Nov 16, 2016·Scientific Reports·Shakira G Quiñones-LebrónMatjaž Kuntner
Aug 12, 2017·Scientific Reports·Tommi Mononen, Lasse Ruokolainen
Dec 28, 2019·Journal of Theoretical Biology·Koen J van Benthem, Meike J Wittmann
Mar 16, 2021·Ecology and Evolution·Ryosuke Iritani, Suzuki Noriyuki
Apr 1, 2021·Trends in Ecology & Evolution·Miguel Gómez-LlanoAdam M Siepielski
May 5, 2021·Nature Ecology & Evolution·Thorsten WiegandAndreas Huth

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