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Three sympatric species of Neotoma: dietary specialization and coexistence by Kenneth P. Dial is a Environmental Science article available to read on EtoBox.
What is Three sympatric species of Neotoma: dietary specialization and coexistence about?
Three sympatric species of Neotoma occur in the southern Great Basin Desert in northern Arizona. Observations and experiments from 1980-1984 focused on diet and den selection to determine to what extent woodrats partition available food and shelter. Analyses included microscopic inspection of feces from live-trapped animals, forage moisture content, and seasonal habitat utilization. Each species of woodrat was found to selectively forage on a different genus of the three evergreens on the study site: N. albigula was the only species to eat appreciable amounts of Yucca, while N. devia, specialized on Ephedra epidermis, and N. stephensi on Juniperus. Observations in the laboratory showed a linear dominance hierarchy where the larger species dominated smaller ones, i.e., N. albigula>N. stephensi>N. devia. To determine if such a hierarchy existed in the field, the behaviorally dominant species (N. albigula and N. stephensi) were continually removed (from a 25 ha experimental plot) over a 12-month period leaving only the subordinate species (N. devia) in the area. In these experiments, 40% of the "dominant"-species dens became occupied by 20 of the "subordinate"-species on the removal p
Who reads Three sympatric species of Neotoma: dietary specialization and coexistence?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Kenneth P. Dial
- Publisher
- Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 0029-8549)
- Published
- 1988
- Language
- EN
- Field
- Environmental Science (Physical Sciences)