Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Determining Sex Of Plains Pocket Gophers By Incisor Width, Ronald M. Case, Alan B. Sargeant
Determining Sex Of Plains Pocket Gophers By Incisor Width, Ronald M. Case, Alan B. Sargeant
University of Nebraska State Museum: Mammalogy Papers
Biologists studying food habits of predators can often determine the prey species but not the sex of the prey from remains found at dens, in stomachs, scats, or pellets of predators. Knowledge of the sex of prey is useful in evaluating predator food habits as well as indicating sex specific differences in prey behavior.
Plains pocket gophers, Geomys bursarius, can be easily identified by the presence of two prominent grooves on the face of each upper incisor. This makes them ideal specimens for studying prey remains. In this paper, we present data that can be used to identify the …
Karyotypic Relationships Within The Short-Tailed Shrews, Genus Blarina, Sarah B. George, Hugh H. Genoways, Jerry R. Choate, Robert J. Baker
Karyotypic Relationships Within The Short-Tailed Shrews, Genus Blarina, Sarah B. George, Hugh H. Genoways, Jerry R. Choate, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
Short-tailed shrews of the genus Blarina exhibit considerable geographic variation in both diploid number and fundamental number. Four chromosomal groups are recognized within the genus: Blarina brevicauda, FN = 48; 2N = 50, 49, or 48; B. carolinensis, FN = 45 or 44; 2N = 46, 39, 38, or 37; B. c. peninsulae, FN = 52; 2N = 52, 51, or 50; B. hylophaga, FN = 62, 61, or 60; 2N = 52. B. c. peninsulae also may be a distinct species, but exact determination must await location and analysis of a zone of contact with …
Morphometric And Geographic Relationships Of Short-Tailed Shrews (Genus Blarina) In Kansas, Iowa, And Missouri, Nancy D. Moncrief, Jerry R. Choate, Hugh H. Genoways
Morphometric And Geographic Relationships Of Short-Tailed Shrews (Genus Blarina) In Kansas, Iowa, And Missouri, Nancy D. Moncrief, Jerry R. Choate, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Shrews of the genus Blarina from Iowa, Kansas, and Missouri were studied morphometrically and karyologically. The ranges of two species, B. brevicauda and B. hylophaga, overlap in a broad zone across southern Iowa and northern Missouri. Morphometric analyses revealed an unexpectedly large amount of cranial variation in B. brevicauda, and confirmed the presence of that species in the Kansas River Valley of northeastern Kansas. Considerable mensural overlap was found in geographic areas in which B. hylophaga and B. brevicauda are sympatric, evincing the need for further karyotypic and morphometric studies in those areas. No formal taxonomic changes are …
Systematic Review Of The Antillean Bats Of The Natalus Micropus-Complex (Chiroptera: Natalidae), Jose Alberto Ottenwalder, Hugh H. Genoways
Systematic Review Of The Antillean Bats Of The Natalus Micropus-Complex (Chiroptera: Natalidae), Jose Alberto Ottenwalder, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Nongeographic and geographic morphometric variation in Antillean populations of bats of the Natalus micropus-complex were analyzed using univariate and multivariate statistical techniques. Samples of males and females from Jamaica and the Dominican Republic revealed females to be significantly larger than males in three measurements and males were significantly larger than females in two measurements. Generally, low coefficients of variation were found in samples of both sexes. The highest value obtained was 5.7 for length of phalanx 1 (digit III) in the sample from Old Providence Island. Two species—Natalus micropus and N. tumidifrons—were recognized within this complex. The …
The Suriname Small Mammal Survey: A Case Study Of The Cooperation Between Research And National Conservation Needs, Hugh H. Genoways, Henry A. Reichart, Stephen L. Williams
The Suriname Small Mammal Survey: A Case Study Of The Cooperation Between Research And National Conservation Needs, Hugh H. Genoways, Henry A. Reichart, Stephen L. Williams
University of Nebraska State Museum: Mammalogy Papers
A cooperative program between the Foundation for Nature Preservation in Suriname and the Carnegie Museum of Natural History to survey the small mammals of Suriname is reviewed. The program has proven to be mutually beneficial and it is presented as a model for development of similar programs in the future. The technical assistance requested by the Foundation for Nature Preservation in Suriname concerned the distribution and natural history of small mammals, especially those occurring in the Nature Parks and Reserves. The Government of Suriname has established an excellent system of Reserves and Parks throughout the country. They are trying to …