Author
Robert L. (Robert Lewis) Packard
Born 1928
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Subjects
Books by Robert L. (Robert Lewis) Packard
Speciation and Evolution of the Pygmy Mice, Genus Baiomys
"Speciation and Evolution of the Pygmy Mice, Genus Baiomys" by Robert L. Packard is a scientific publication written in the mid-20th century. This work primarily focuses on the study of pygmy mice, their taxonomy, geographic distribution, and the evolutionary trends seen within the genus Baiomys, which includes various fossil and living species of these rodents. At the start of the publication, the author introduces the genus Baiomys, detailing its geographic range stretching from Central America to the southwestern United States, with a significant presence in Mexico. The opening discusses their historical recognition within scientific literature, sparking interest in understanding the interspecies relationships and geographic variations of different pygmy mouse species. Packard outlines the objectives of this study, including a comprehensive analysis of their morphological characteristics, variety within species, and establishing linkages among extinct and extant members of the genus. The early sections set the stage for a thorough examination of pygmy mouse evolution and speciation.
New Subspecies of the Rodent Baiomys from Central America University of Kansas Publications, Museum of Natural History
"New Subspecies of the Rodent Baiomys from Central America" by Robert L. Packard is a scientific publication written in the late 1950s. This work is an academic paper that focuses on the taxonomy of rodents, particularly detailing new subspecies of the southern pygmy mouse, Baiomys musculus, discovered in Central America. The book likely serves as a contribution to the field of mammalogy and biodiversity, highlighting the significance of these new subspecies. In this publication, Packard presents the identification and classification of two previously undescribed subspecies of the southern pygmy mouse, namely Baiomys musculus handleyi and Baiomys musculus pullus. He provides a thorough analysis, including descriptions of their physical characteristics, distributions, and comparisons with known subspecies from surrounding regions. The work illustrates the ecological significance of these new subspecies and suggests that environmental factors such as humidity may influence their coloration. Overall, the book deep dives into the systematic review of these rodents, supported by measurements and comparisons to enhance understanding of the biodiversity within the genus Baiomys.