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- Title
DEMOGRAPHIC FEATURES AND HABITAT PREFERENCES OF OSGOODOMYS BANDERANUS (OSGOOD'S DEERMOUSE) IN COLIMA, MEXICO.
- Authors
POINDEXTER, CASSIE J.; SCHNELL, GARY D.; SÁNCHEZ-HERNÁNDEZ, CORNELIO; DE LOURDES ROMERO-ALMARAZ, MARÍA; KENNEDY, MICHAEL L.; BEST, TROY L.; WOOTEN, MICHAEL C.; WAITS, JULIANN L.
- Abstract
Osgoodomys banderanus (Osgood's deermouse) was studied in January 2006 and 2007 in northcentral Colima, Mexico. During 8 nights each year, five mark-recapture grids were established with elevated and ground traps. For 16,000 trap-nights, 123 individuals were captured 385 times (comprising 9.4% of captures on grids); one-third of captures were in elevated traps. The ratio of males to females was 1.51:1 (significantly different from 1:1). No sexual dimorphism in mass was detected, 84.4% were adults, and 41.5% of adult females were pregnant or lactating. Average distance between successive captures was 19.62 m, and average distance from a central point of capture was 12.74 m. Osgoodomys banderanus was captured on 6 of 10 grids (densities 0.76-30.55 individuals/ha). Probability of capture or recapture was influenced by trapping night, with probabilities peaking on nights 6 and 7. Habitat preferences were based on 14 environmental variables taken at each trapping station. Logistic regression indicated O. banderanus preferred higher canopies, closer trees, more rocks, and less grass; a model developed with nonparametric multiplicative regression consisted of the first three of these variables. Osgoodomys banderanus exhibited strong preferences for rocky areas with less dense ground cover, a more open understory, and a tall canopy.
- Subjects
COLIMA (Mexico : State); MEXICO; HABITATS; CHORDATA; SEXUAL dimorphism in animals; CLIMATE change; REGRESSION analysis
- Publication
Southwestern Naturalist, 2013, Vol 58, Issue 1, p8
- ISSN
0038-4909
- Publication type
Article
- DOI
10.1894/0038-4909-58.1.8