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Patterns of Habitat Utilization in Sympatric Rodents on the Texas Coastal Prairie

1983; Wiley; Volume: 64; Issue: 6 Linguagem: Inglês

10.2307/1937502

1939-9170

W. B. Kincaid, Guy N. Cameron, Bruce A. Carnes,

Wildlife Ecology and Conservation

EcologyVolume 64, Issue 6 p. 1471-1480 Article Patterns of Habitat Utilization in Sympatric Rodents on the Texas Coastal Prairie W. Bradley Kincaid, W. Bradley KincaidSearch for more papers by this authorGuy N. Cameron, Guy N. CameronSearch for more papers by this authorBruce A. Carnes, Bruce A. CarnesSearch for more papers by this author W. Bradley Kincaid, W. Bradley KincaidSearch for more papers by this authorGuy N. Cameron, Guy N. CameronSearch for more papers by this authorBruce A. Carnes, Bruce A. CarnesSearch for more papers by this author First published: 01 December 1983 https://doi.org/10.2307/1937502Citations: 19AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Habitat utilization by Sigmodon hispidus, Reithrodontomys fulvescens, and Oryzomys palustris was compared to habitat availability, by determining if capture locations were random samples of the trapping grid with respect to mean cover of 10 plant species. A methodology, designed for this purpose and detailed in a companion paper (Kincaid and Bryant 1983), was used in which the Euclidean distance between mean vectors representing habitat utilization and availability was compared to that for random draws from the available resource spectrum. This distance (the habitat differential) was partitioned into separate components representing differential composition and differential productivity in the occupied habitats. Interspecies differences in habitat utilization were also considered relative to habitat availability. Each species utilized a habitat subset that differed significantly from the average available habitat. Sigmodon and Reithrodontomys were the most similar species, differing only in the pattern of their associations with grasses and cover. Oryzomys usually occurred in habitats dominated by dicots. Deviations for all species were usually attributable to differential composition, except for Sigmodon and Reithrodontomys in winter, when both exhibited significant productivity components. Habitats occupied by these rodents were significantly less heterogeneous than random subsets, but only oryzomys habitat always had reduced dimensionality of variation relative to that of the available habitat. Differential responsiveness to patterns of statistical variation in a patchy environment can be sufficient to produce habitat spearation and is offered as a neutral model for the examination of higher—order processes. Citing Literature Volume64, Issue6December 1983Pages 1471-1480 RelatedInformation