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Full-Text Articles in Life Sciences
Evolutionary Perspectives On Animalivory, Patricia W. Freeman
Evolutionary Perspectives On Animalivory, Patricia W. Freeman
University of Nebraska State Museum: Mammalogy Papers
Derived from insectivorous ancestors, microchiropteran bats have diversified into a remarkable array of feeding habits. Cranial and dental characteristics mirror this diversity. Insectivorous predators of hard-shelled prey have thicker jaws, well-developed cranial crests, fewer but larger teeth, longer canines and abbreviated M3s than species that take soft items. Carnivorous bats have more elongate skulls, larger brain volumes and larger pinnae, lengthened metastylar ridges, and larger protoconids compared to insectivores. Animalivorous species have large ectoloph areas compared to frugivorous and nectarivorous species, but animalivores and frugivores have large tooth areas relative to palatal area compared to nectarivores. Frugivores sacrifice ectoloph for …
Sorex Merriami In Nebraska, Patricia W. Freeman, Jay D. Druecker, Scott Tvrz
Sorex Merriami In Nebraska, Patricia W. Freeman, Jay D. Druecker, Scott Tvrz
University of Nebraska State Museum: Mammalogy Papers
We report the capture of a second specimen of Merriam’s shrew (Sorex merriami) from the northwestern comer of Nebraska from dry grassland of sage and rabbitbrush. The first specimen, captured in 1965, is a more eastern record in what today is Sandhills prairie.
"Taxonomy" From Biology Of The Heteroeromyidae, Daniel F. Williams, Hugh H. Genoways, Janet K. Braun
"Taxonomy" From Biology Of The Heteroeromyidae, Daniel F. Williams, Hugh H. Genoways, Janet K. Braun
University of Nebraska State Museum: Mammalogy Papers
Herein the taxonomy of the family is reviewed and diagnoses of Recent species and accounts of all currently recognized Recent species and subspecies are provided. The objective is to present a current taxonomy for the family rather than a systematic review. Unfortunately, there have been no comprehensive reviews for most genera for 80 years or more and the current taxonomy of many species clearly is unsatisfactory, as is the understanding of the relationships between most of the described fossil and Recent taxa.
Preface To Biology Of The Heteromyidae, Hugh H. Genoways, James H. Brown
Preface To Biology Of The Heteromyidae, Hugh H. Genoways, James H. Brown
University of Nebraska State Museum: Mammalogy Papers
What is the family Heteromyidae? It is the group ofexclusively New World rodents that includes the kangaroo rats, pocket mice, and kangaroo mice ofthe desert, grasslands, and shrublands of western North America as well as the spiny and pouched rats of the subtropical shrublands and tropical deciduous and evergreen forests of North America, Central America, and northernmost South America. It is a large family, with six genera and 316 species.
Flat Water Mammals, Patricia W. Freeman, Russell A. Benedict
Flat Water Mammals, Patricia W. Freeman, Russell A. Benedict
University of Nebraska State Museum: Mammalogy Papers
Nebraska's diverse habitats are home for an equally diverse collection of mammals, some of which appear to be expanding their ranges as the habitat changes, especially along the Platte River Valley.
Mammals Of The Platte River Valley: Final Report, Patricia W. Freeman, Russell A. Benedict
Mammals Of The Platte River Valley: Final Report, Patricia W. Freeman, Russell A. Benedict
University of Nebraska State Museum: Mammalogy Papers
Nebraska is characterised as a critical juncture for distributional ranges of mammals from northern, southern, eastern, and plains faunal elements. As might be expected, ranges have not remained static since the benchmark survey done by Jones, 1964. We have evidence that 10 of about 80 species of mammals found in the Platte River Valley have expanded their ranges. Opossum, red bats, bog lemmings, white-footed mice, woodchucks and least weasels are further west in the state, and grasshopper mice are further east in the state. Elliot's short-tailed shrew, cotton rats and armadillos are further north in the state. We have the …