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Attitudes Of Rural Landowners Toward Wolves In Northwestern Minnesota, Andreas S. Chavez, Eric M. Gese, Richard S. Krannich
Attitudes Of Rural Landowners Toward Wolves In Northwestern Minnesota, Andreas S. Chavez, Eric M. Gese, Richard S. Krannich
USDA Wildlife Services: Staff Publications
The natural recolonization of gray wolves (Canis lupus) into parts of their former range in the upper Midwest of the United States has led to wolves establishing territories in semi-agricultural areas containing livestock. As part of a study on wolf–livestock relationships in a northwestern Minnesota agricultural area, we surveyed rural landowners within and outside of wolf range to assess perceptions regarding the risks wolves pose to livestock (mainly cattle). The mean response score for rural landowners to the statement “I think wolves should be allowed to exist in northwest Minnesota” was between neutral and disagree. There was no …
Spatial Ecology Of Swift Fox Social Groups: From Group Formation To Mate Loss, Ann M. Kitchen, Erik M. Gese, Seija M. Karki, Edward R. Schauster
Spatial Ecology Of Swift Fox Social Groups: From Group Formation To Mate Loss, Ann M. Kitchen, Erik M. Gese, Seija M. Karki, Edward R. Schauster
USDA Wildlife Services: Staff Publications
We examined social group formation, movements and denning relative to other group members, home-range use, and the response to social group disruption among 188 radiocollared swift foxes (Vulpes velox) in Colorado. We found that during the initial stages of pair formation mated foxes shared dens more frequently than during the remainder of their pair-bond. The average distance between mated pairs was influenced by season and time of day, with the greatest proximity in the breeding season (727.2 m 6 42.3 SE), and during diurnal hours (463.7 6 34.7 m). Female foxes spent more time in the core area of the …
Population Dynamics Of A Diverse Rodent Assemblage In Mixed Grass-Shrub Habitat, Southeastern Colorado, 1995–2000, Charles H. Calisher, James N. Mills, William P. Sweeney, J. Jeffrey Root, Serena A. Reeder, Emily S. Jentes, Kent Wagoner, Barry J. Beaty
Population Dynamics Of A Diverse Rodent Assemblage In Mixed Grass-Shrub Habitat, Southeastern Colorado, 1995–2000, Charles H. Calisher, James N. Mills, William P. Sweeney, J. Jeffrey Root, Serena A. Reeder, Emily S. Jentes, Kent Wagoner, Barry J. Beaty
USDA Wildlife Services: Staff Publications
We followed seasonal and year-to-year population dynamics for a diverse rodent assemblage in a short-grass prairie ecosystem in southeastern Colorado (USA) for 6 yr. We captured 2,798 individual rodents (range, one to 812 individuals per species) belonging to 19 species. The two most common species, deer mice (Peromyscus maniculatus) and western harvest mice (Reithrodontomys megalotis), generally had population peaks in winter and nadirs in summer; several other murid species demonstrated autumn peaks and spring nadirs; heteromyids were infrequently captured in winter, and populations generally peaked in summer or autumn. Interannual trends indicated an interactive effect between …