Open Access Articles

Jaguars (Panthera onca) remain virtually unstudied in the desert environments at the northern extent of their range. Historic sightings from the United States indicate a declining population of reside...
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McCain, E. B., and J. L. Childs. 2008. Evidence of resident jaguars (Panthera onca) in the southwestern United States and the implications for conservations. Journal of Mammalogy 89:1-10.
The earth’s climate is changing, possibly at an unprecedented rate. Overall, the planet is warming, sea ice and glaciers are in retreat, sea level is rising, and pollutants are accumulating in t...
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Moore, S. E.. 2008. Marine mammals as ecosystem sentinels. Journal of Mammalogy 89:534-540.
Large mammals often play critical roles within ecosystems by affecting either prey populations or the structure and species composition of surrounding vegetation. However, large mammals are highly vul...
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Morrison, J. C., W. Sechrest, E. Dinerstein, D. S. Wilcove, and J. F. Lamoreux. 2007. Persistence of large mammal fauna as indicators of global human impact. Journal of Mamalogy 88:1363-1380.
In the early 1980s, 2 groups of Soviet scientists independently described 1, possibly 2 new dwarf species of killer whales (Orcinus) from Antarctica. We used aerial photogrammetry to determine total l...
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Pitman, R. L., W. L. Perryman, and E. Eilers. 2007. A dwarf form of killer whale in Antarctica. Journal of Mammalogy 88(1):43-48.
An implicit assumption of the mesopredator release hypothesis (MRH) is that competition is occurring between the larger and smaller predator. When significant competition exists, the MRH predicts that...
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Prange, S., and S. D. Gehrt. 2007. Response of skunks to a simulated increase in coyote activity. Journal of Mammalogy 88(4):1040-1049.
We assessed the locomotor performance of captive northern flying squirrels (Glaucomys sabrinus) over short glide distances and on small branches. We used stroboscopic photography, digital video, and a...
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Scheibe, J. S., K. E. Paskins, S. Ferdous, and D. Birdsill. 2007. Kinematics and functional morphology of leaping, landing, and branch use in Glaucomys sabrinus. Journal of Mammalogy 88(4):850-861.
Many traits exhibit nonequivalent effects upon maternal versus paternal inheritance. Such ‘‘parent-of-origin’’ effects may be caused by several mechanisms including sex chromos...
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Vrana, P. B.. 2007. Genomic imprinting as a mechanism of reproductive isolation in mammals. Journal of Mammalogy 88(1):5-23.
Mustelids, with their long, thin bodies and poor fat storage capabilities, perform an energetic balancing act when making decisions about energy expenditure. Activity rates provide vital insights into...
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Weir, R. D., and F. B. Corbould. 2007. Factors affecting diurnal activity of fishers in north-central British Columbia. Journal of Mammalogy 88:1508-1514.
General guidelines for use of wild mammal species are updated from the 1998 version approved by the American Society of Mammalogists (ASM) and expanded to include additional resources. Included are ...
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Gannon, W. L., R. S. Sikes, and the Animal Care and Use Committee of the American Society of Mammalogists. 2007. Guidelines of the American Society of Mammalogists for the use of wild mammals in research. Journal of Mammalogy 88(3):809-823.
This commentary was adapted from an oral presentation delivered at the 86th Annual Meeting of the American Society of Mammalogists in Amherst, Massachusetts, on 18 June 2006 to recognize receipt of th...
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Hafner, M.S.. 2007. Field research in Mammalogy: an enterprise in peril. Journal of Mammalogy 88(5):1119-1128.