Open Access Articles

The substantial body of research on Holarctic ground squirrels amassed over the past century documents considerable variability in morphological, cytogenetic, ecological, and behavioral attribute...
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Helgen, K. M., F. R. Cole, L. E. Helgen, and D. E. Wilson. 2009. Generic revision in the Holarctic ground squirrel genus Spermophilus. Journal of Mammalogy 90:270-305.
Determinants of sex ratios in animal populations have been of general interest to ecologists for decades. We tested the hypothesis that offspring sex ratio in a population of northern elephant se...
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Lee, D. E., and W. J. Sydeman. 2009. North Pacific climate mediates offspring sex ratio in northern elephant seals. Journal of Mammalogy 90:1-8.
We investigated the effects of fluctuating prey numbers on the foraging strategies and potential mechanisms for coexistence of 2 sympatric predators, coyotes (Canis latrans) and red foxes (Vulpes...
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Randa, L. A., D. M. Cooper, P. L. Meserve, and J. A. Yunger. 2009. Prey switching of sympatric canids in response to variable prey abundance. Journal of Mammalogy 90:954-603.
The central Rocky Mountain region of North America lies at the biogeographic crossroads of the Rocky Mountains, Great Plains, and Great Basin. Here, we examine genetic patterns in an abundant, wi...
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Spaeth, P. A., M. van Tuinen, Y. L. Chan, and E. A. Hadly. 2009. Phylogeography of Microtus longicaudus in the tectonically and glacially dynamic central Rocky Mountains. Journal of Mammalogy 90:571-584.
It is often difficult to test hypotheses about how and why animal movement responds to environmental conditions, and at what spatial scales movement decisions are made, all of which are critical ...
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Webb, S. L., S. K. Riffell, K. L. Gee, and S. Demarais. 2009. Using fractal analysis to characterize movement paths of white-tailed deer and response to spatial scale. Journal of Mammalogy 90:1210-1217.
This commentary is the text of an oral presentation delivered at the 88th Annual Meeting of the American Society of Mammalogists in Brookings, South Dakota, on 22 June 2008 to recognize receipt o...
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Weigl, P. D.. 2009. The natural history conundrum revisited: mammalogy begins at home. Journal of Mammalogy 90:265-269.
Papers in this Special Feature stem from a symposium on large-scale ecosystem change and the conservation of marine mammals convened at the 86th Annual Meeting of the American Society of Mammalogists ...
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O’Shea, T. J., and D. K. Odell. 2008. Large-scale marine ecosystem changes and the conservation of marine mammals. Journal of Mammalogy 89:529-533.
Direct fisheries interactions pose a serious threat to the conservation of many populations and some species of marine mammals. The most acute problem is bycatch, unintended mortality in fishing gear,...
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Read, A. J.. 2008. The looming crisis: interactions between marine mammals and fisheries. Journal of Mammalogy 89:541-548.
 Subspecific affinities, determination of population boundaries, and levels of population connectedness are of critical importance for the development of management and conservation planning. We ...
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Smith, S. J., D. M. Leslie, Jr., M. J. Hamilton, J. B. Lack, and R. A. Van Den Bussche. 2008. Subspecific affinities and conservation genetics of western big-eared bats (Corynorhinus townsendii pallescens) at the edge of their distributional range. Journal of Mammalogy 89:799-814.
Using data collected with thermal imaging technology, we found a major reduction in population estimates of colony size in the Brazilian free-tailed bat (Tadarida brasiliensis) from 54 million, obta...
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Betke, M., D. E. Hirsh, N. C. Makris, G. F. McCracken, M. Procopio, N. I. Hristov, S. Tang, A. Bagchi, J. D. Reichard, J. W. Horn, S. Crampton, C. J. Cleveland, and T. H. Kunz. 2008. Thermal imaging reveals significantly smaller Brazilian free-tailed bat colonies than previously estimated. Journal of Mammalogy 89:18-24.