Results 151 to 160 of about 689 (172)

MORPHOLOGICAL ANALYSIS OF PEROGNATHUS FLAVUS AND P. MERRIAMI (RODENTIA: HETEROMYIDAE)

The Southwestern Naturalist, 2006
Abstract Morphometric variables were analyzed for 119 specimens from 28 localities in New Mexico and Texas to determine whether they can be used to distinguish between individuals of known identity of Perognathus flavus and P. merriami. Multivariate analysis of variance suggested that morphological characters from individuals of these 2 species ...
Joel G. Brant, Thomas E. Lee
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Chromosome Studies of Certain Pocket Mice, Genus Perognathus (Rodentia: Heteromyidae)

Journal of Mammalogy, 1967
The somatic metaphase chromosome complements of seven species of pocket mice, genus Perognathus , subgenus Chaetodipus , were analyzed from dividing bone marrow cells. The species studied include P. penicillatus (2n = 46), P. pernix (2n=38), P. intermedins (2n = 46), P. goldmani (2n = 52), P. artus (2n = 54), P. baileyi (2n = 48), and P. hispidus (2n =
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Comparative water balance in two species of Liomys (Rodentia: Heteromyidae)

Comparative Biochemistry and Physiology Part A: Physiology, 1978
Abstract 1. 1. Water metabolism in Liomys irroratus and L. pictus was studied by measuring water loss and gain by several routes. 2. 2. Urine concentrations and fecal water contents were similar in the two species; L. pictus experiences significantly higher evaporative water loss than does L. irroratus . 3. 3.
Donald P Christian, John O Matson, Stuart G Rosenberg   +2 more
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Patch use by Dipodomys deserti (Rodentia: Heteromyidae): profitability, preference, and depletion dynamics

Oecologia, 1990
Granivorous desert rodents of the family Heteromyidae forage nonrandomly among "microhabitats" that vary in substrate, seed densities, and seed species composition. To explore the hypothesis that microhabitat use is sensitive to seed patch profitability, we quantified effects of seed size (1.96 vs.
Robert H, Podolsky, Mary V, Price
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Auditory systems of Heteromyidae: Postnatal development of the ear of Dipodomys merriami

Journal of Morphology, 1975
AbstractSerial histological sections of kangaroo rats of postnatal ages 0‐, 3‐, 7‐, 10‐, and 14‐days were prepared and studied. At birth the middle ear is mostly filled with mesenchyme and small in size, having only a small hypotympanum and a very small epitympanic recess. During the first postnatal two weeks, much of the hypertrophy found in the adult
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An overview of caudal autotomy in rodents, with new records for Cricetidae and Heteromyidae

Notas sobre Mamíferos Sudamericanos
La autotomía caudal es un fenómeno conocido principalmente en reptiles (por ejemplo, Lepidosauria), pero los casos en mamíferos son escasos. Por lo tanto, se presenta una revisión sobre la autotomía caudal en roedores y se registran cuatro nuevos casos para las especies: la rata de arroz del bosque nublado, Handleyomys saturatior (Merriam, 1901); el ...
Celeste María López, Manfredo Alejandro Turcios-Casco   +1 more
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Karyological Affinities of the Species Groups of Silky Pocket Mice (Rodentia, Heteromyidae)

Journal of Mammalogy, 1978
Data on mitotic chromosomes of the 12 species of silky pocket mice ( Perognathus , subgenus Perognathus ) are evaluated in phyletic terms. Five karyotypic groups are recognized. The fasciatus group is composed of P. fasciatus, P. apache , and P. flavescens (2N = 44, FN = 48–50). Members of the flavus group ( P. flavus and P. merriami ; 2N = 50, FN = 86)
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An anatomical study of the brains of Dipodomys (Mammalia: Rodentia: Heteromyidae).

Anatomischer Anzeiger, 1980
Whole brains and Nissl-stained serial sections of 3 species of kangaroo rat (Dipodomys spectabilis, D. ordii, D. merriami) were compared for interspecific differences. Neuroanatomical variations were conservative in nature. Examination of the cerebellum revealed possible differences in locomotion and ecology. Dipodomys ordii exhibited more neurological
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Host Family Heteromyidae

2018
Norman D. Levine, Virginia Ivens
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Phylogeography and subspecies revision of the hispid pocket mouse,Chaetodipus hispidus(Rodentia: Heteromyidae)

Journal of Mammalogy, 2012
Jessica E Light, Light Jessica E
exaly