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Journal of Mammalogy

Bryan S McLean, Kayce C Bell, Jonathan L Dunnum, Bethany Abrahamson, Jocelyn P Colella, Eleanor R Deardorff, Jessica A Weber, Amanda K Jones, Fernando Salazar-Miralles, Joseph A Cook
Specimens and associated data in natural history collections (NHCs) foster substantial scientific progress. In this paper, we explore recent contributions of NHCs to the study of systematics and biogeography, genomics, morphology, stable isotope ecology, and parasites and pathogens of mammals. To begin to assess the magnitude and scope of these contributions, we analyzed publications in the Journal of Mammalogy over the last decade, as well as recent research supported by a single university mammal collection (Museum of Southwestern Biology, Division of Mammals)...
January 20, 2016: Journal of Mammalogy
John O Kellam, Deborah K Jansen, Annette T Johnson, Ralph W Arwood, Melissa J Merrick, John L Koprowski
Forested wetlands are in decline, as are many species that are obligate residents. Big Cypress fox squirrels (BCFS; Sciurus niger avicennia) are a threatened endemic to wet pine and cypress forests in southwestern Florida. The region is characterized by development resulting in habitat loss, habitat fragmentation, and hydrological change that influence the quality of these wet forests. Through radiotelemetry and field observations, we examined the ecology and habitat use of BCFS in a natural cypress dome-pine forest mosaic...
January 20, 2016: Journal of Mammalogy
Brian Keane, Shavonne Ross, Thomas O Crist, Nancy G Solomon
Characterizing the spatial arrangement of related individuals within populations can convey information about opportunities for the evolution of kin-selected social behaviors, the potential for inbreeding, and the geographic distribution of genetic variation. Prairie voles (Microtus ochrogaster) are socially monogamous rodents that sometimes breed cooperatively. Individuals of both sexes are highly philopatric, and among natal dispersers, the average dispersal distance is about 30 m. Such limited natal dispersal can result in the spatial clustering of kin and we used microsatellite data to estimate genetic relatedness among resident adult prairie voles in 2 natural populations to test the hypothesis that limited natal dispersal of male and female prairie voles results in the spatial clustering of kin...
November 24, 2015: Journal of Mammalogy
Naysa E Balcazar, Joy S Tripovich, Holger Klinck, Sharon L Nieukirk, David K Mellinger, Robert P Dziak, Tracey L Rogers
For effective species management, understanding population structure and distribution is critical. However, quantifying population structure is not always straightforward. Within the Southern Hemisphere, the blue whale (Balaenoptera musculus) complex is extremely diverse but difficult to study. Using automated detector methods, we identified "acoustic populations" of whales producing region-specific call types. We examined blue whale call types in passive acoustic data at sites spanning over 7,370 km across the southeast Indian Ocean and southwest Pacific Ocean (SWPO) from 2009 to 2012...
November 24, 2015: Journal of Mammalogy
Catherine Teresa Sahley, Klauss Cervantes, Victor Pacheco, Edith Salas, Diego Paredes, Alfonso Alonso
Knowledge of feeding habits of small rodents is necessary for understanding food webs, trophic structure, and plant-animal interactions in Neotropical forests. Despite several studies that have investigated community structure and feeding behavior of rodents, large gaps remain in our understanding of their guild occupancy. Our objective was to investigate the diets of 7 species of small (< 100g) sympatric sigmodontine rodents in a high (3,500 m) Andean montane rainforest in Peru. We qualitatively and quantitatively assessed diet items in fecal samples from livetrapped rodents from 2009 to 2012...
September 29, 2015: Journal of Mammalogy
Todd R Robeck, Kevin Willis, Michael R Scarpuzzi, Justine K O'Brien
Data collected on life-history parameters of known-age animals from the northern (NR) and southern resident (SR) killer whales (Orcinus orca) of the eastern North Pacific were compared with life-history traits of killer whales located at SeaWorld (SEA) facilities. For captive-born SEA animals, mean age and body length at 1st estrus was 7.5 years and 483.7cm, respectively. Estimated mean age at 1st conception was different (P < 0.001) for the combined data from both northern and southern resident (NSR) free-ranging populations (12...
September 29, 2015: Journal of Mammalogy
Sylvia K Osterrieder, Chandra Salgado Kent, Carlos J R Anderson, Iain M Parnum, Randall W Robinson
Reliable methods for identification of individual animals are advantageous for ecological studies of population demographics and movement patterns. Photographic identification, based on distinguishable patterns, unique shapes, or scars, is an effective technique already used for many species. We tested whether photographs of whisker spot patterns could be used to discriminate among individual Australian sea lion (Neophoca cinerea). Based on images of 53 sea lions, we simulated 5,000 patterns before calculating the probability of duplication in a study population...
September 29, 2015: Journal of Mammalogy
Roy N Platt, Brian R Amman, Megan S Keith, Cody W Thompson, Robert D Bradley
The evolutionary relationships between Peromyscus, Habromys, Isthmomys, Megadontomys, Neotomodon, Osgoodomys, and Podomys are poorly understood. In order to further explore the evolutionary boundaries of Peromyscus and compare potential taxonomic solutions for this diverse group and its relatives, we conducted phylogenetic analyses of DNA sequence data from alcohol dehydrogenase (Adh1-I2), beta fibrinogen (Fgb-I7), interphotoreceptor retinoid-binding protein (Rbp3), and cytochrome-b (Cytb). Phylogenetic analyses of mitochondrial and nuclear genes produced similar topologies although levels of nodal support varied...
August 3, 2015: Journal of Mammalogy
Joy S Tripovich, Holger Klinck, Sharon L Nieukirk, Tempe Adams, David K Mellinger, Naysa E Balcazar, Karolin Klinck, Evelyn J S Hall, Tracey L Rogers
We examined recordings from a 15-month (May 2009-July 2010) continuous acoustic data set collected from a bottom-mounted passive acoustic recorder at a sample frequency of 6kHz off Portland, Victoria, Australia (38°33'01″S, 141°15'13″E) off southern Australia. Analysis revealed that calls from both subspecies were recorded at this site, and general additive modeling revealed that the number of calls varied significantly across seasons. Antarctic blue whales were detected more frequently from July to October 2009 and June to July 2010, corresponding to the suspected breeding season, while Australian blue whales were recorded more frequently from March to June 2010, coinciding with the feeding season...
May 22, 2015: Journal of Mammalogy
Robert D Bradley, David J Schmidly, Brian R Amman, Roy N Platt, Kathy M Neumann, Howard M Huynh, Raúl Muñiz-Martínez, Celia López-González, Nicté Ordóñez-Garza
DNA sequence and morphometric data were used to re-evaluate the taxonomy and systematics of Peromyscus pectoralis. Phylogenetic analyses (maximum likelihood and Bayesian inference) of DNA sequences from the mitochondrial cytochrome-b gene in 44 samples of P. pectoralis indicated 2 well-supported monophyletic clades. The 1st clade contained specimens from Texas historically assigned to P. p. laceianus; the 2nd was comprised of specimens previously referable to P. p. collinus, P. p. laceianus, and P. p. pectoralis obtained from northern and eastern Mexico...
April 25, 2015: Journal of Mammalogy
Eric M Schauber, Clayton K Nielsen, Lene J Kjær, Charles W Anderson, Daniel J Storm
In social species, individuals contact members of the same group much more often than those of other groups, particularly for contacts that could directly transmit disease agents. This disparity in contact rates violates the assumptions of simple disease models, hinders disease spread between groups, and could decouple disease transmission from population density. Social behavior of white-tailed deer has important implications for the long-term dynamics and impact of diseases such as bovine tuberculosis and chronic wasting disease (CWD), so expanding our understanding of their social system is important...
February 15, 2015: Journal of Mammalogy
Amy C Ulappa, Rick G Kelsey, Graham G Frye, Janet L Rachlow, Lisa A Shipley, Laura Bond, Xinzhu Pu, Jennifer Sorensen Forbey
For herbivores, nutrient intake is limited by the relatively low nutritional quality of plants and high concentrations of potentially toxic defensive compounds (plant secondary metabolites, PSMs) produced by many plants. In response to phytochemical challenges, some herbivores selectively forage on plants with higher nutrient and lower PSM concentrations relative to other plants. Pygmy rabbits (Brachylagus idahoensis) are dietary specialists that feed on sagebrush (Artemisia spp.) and forage on specific plants more than others within a foraging patch...
2014: Journal of Mammalogy
David T S Hayman, Rachel McCrea, Olivier Restif, Richard Suu-Ire, Anthony R Fooks, James L N Wood, Andrew A Cunningham, J Marcus Rowcliffe
Eidolon helvum is widely distributed across sub-Saharan Africa where it forms large, dense colonies. The species is migratory and satellite telemetry studies have demonstrated that individuals can migrate over 2,500 km. It is a common source of bush meat in West Africa and evidence of infection with potentially zoonotic viruses has been found in West African colonies. The species, therefore, is of interest to both ecologists and those interested in public health. Despite this, demographic parameters of the species are unknown...
October 2012: Journal of Mammalogy
J D Reimer, M L Petras
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
R A Suthers
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
P Licht, P Leitner
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
P B Dunaway, J A Payne, L L Lewis, J D Story
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
J L Patton
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
F F Gilbert, E D Bailey
No abstract text is available yet for this article.
February 1967: Journal of Mammalogy
No abstract text is available yet for this article.
August 1949: Journal of Mammalogy
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