Examining the effects of heterospecific abundance on dispersal in forest small mammals
| العنوان: | Examining the effects of heterospecific abundance on dispersal in forest small mammals |
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| المؤلفون: | E. Ann Falls, J. Bruce Falls, Simon T. Denomme-Brown, Andrew G. McAdam, Ronald J. Brooks, Karl Cottenie |
| المصدر: | Journal of Mammalogy. 102:1484-1496 |
| بيانات النشر: | Oxford University Press (OUP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, Ecology, 010604 marine biology & hydrobiology, 15. Life on land, Biology, 010603 evolutionary biology, 01 natural sciences, Abundance (ecology), Genetics, Biological dispersal, Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation |
| الوصف: | The effects of conspecific densities on dispersal have been well documented. However, while positive and negative density-dependent dispersal based on conspecific densities often are shown to be the result of intraspecific competition or facilitation, respectively, the effects of heterospecific densities on dispersal have been examined far less frequently. This gap in knowledge warrants investigation given the potential for the analogous processes of interspecific competition and heterospecific attraction to influence dispersal patterns and behavior. Here we use a long-term live-trapping study of deer mouse (Peromyscus maniculatus), eastern chipmunk (Tamias striatus), red-backed vole (Myodes gapperi), and jumping mice (Napaeozapus insignis and Zapus hudsonius) to examine the effects of variation in conspecific and heterospecific abundances on dispersal frequency. In terms of conspecific abundance, jumping mice were more likely to disperse from areas with fewer conspecifics, while red-backed voles and chipmunks did not respond to variation in conspecific abundances in their dispersal frequencies. While there were no statistically significant effects of variation in heterospecific abundances on dispersal frequency, some effect sizes for heterospecific abundance effects on dispersal met or exceeded those of conspecific abundances. Conspecific abundances clearly can affect dispersal by some species in this system, but the effects of heterospecific abundances on dispersal frequency are less clear. Based on effect sizes, it appears that there may be potential for heterospecific effects on dispersal by some species in the community, although the strength and causes of these relationships remain unclear. |
| تدمد: | 1545-1542 0022-2372 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0a0f04eef0da5a3c7134da210fabf187 https://doi.org/10.1093/jmammal/gyab096 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........0a0f04eef0da5a3c7134da210fabf187 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15451542 00222372 |
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