Partitioning Of Space, Food, and Time by Syntopic Peromyscus Boylii and P. Californicus

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Matina C. Kalcounis-Rüppell, Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
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Abstract: We used trap associations, nest-site preferences, a food selection experiment, and measurements of nightly activity to describe resource partitioning by syntopic Peromyscus californicus and P. boyliiin Monterey County, California. P. californicus and P. boylii were active over the same range of time during the night. P. boylii was caught frequently near Quercus agrifolia, nested under canopies with high densities of Q. agrifolia, and consumedmore Q. agrifolia acorns than P. californicus. Relative to P. boylii, P. californicus was a habitat generalist that did not discriminate among canopy plants for nest sites and had abroad diet. At high densities of P. californicus, the 2 species were negatively numerically associated. Both interspecific interactions and habitat partitioning (canopy level), via the specialization of P. boylii on Q. agrifolia, appear to facilitate the coexistence of P. boylii and P. californicus.

Additional Information

Journal of Mammalogy, 83(2):614-625, 2002
Language: English
Date: 2002
coexistence, diet, habitat, nest sites, Peromyscus californicus, P. boylii, resource partitioning, scale, time of activity

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