Author
Rollin H. (Rollin Harold) Baker
1916-2007
Rollin H. (Rollin Harold) Baker (1916-2007) is a public-domain author available on Rivro. Read free books, explore subjects, and discover related classics.
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Books by Rollin H. (Rollin Harold) Baker
The Avifauna of Micronesia, Its Origin, Evolution, and Distribution
"The Avifauna of Micronesia, Its Origin, Evolution, and Distribution" by Rollin H. Baker is a scientific publication written in the mid-20th century. This work delves into the diverse bird species of Micronesia, analyzing their origins, evolutionary history, and geographical distribution. It serves as a crucial resource for ornithologists and ecologists interested in understanding the unique avian life of these remote islands. At the start of the book, the author introduces the avifauna of Micronesia, noting that the region is home to 206 bird species across 37 families and 91 genera. The opening chapters discuss the geographical characteristics of Micronesia, highlighting its oceanic islands that have formed independently of continental land masses. The text emphasizes the significance of understanding the mechanisms by which bird species arrived in Micronesia, their ecological adaptations, and ongoing threats to their survival, setting the groundwork for a comprehensive examination of the islands' bird life throughout the publication.
Mammals taken Along the Alaska Highway
"Mammals Taken Along the Alaska Highway" by Rollin H. Baker is a scientific publication written in the early 1950s. This book documents the collection of various mammal species along the Alaska Highway, highlighting species distribution and their ecological contexts. It serves as a significant resource for understanding the biodiversity of mammals in the regions of Alaska, Yukon, and British Columbia. The book presents an account of mammals collected during expeditions in the summers of 1947 and 1948, primarily by J.R. Alcorn, who gathered over 1,250 specimens across numerous locations. Baker meticulously categorizes detailed descriptions of various species, such as the cinereous shrew, water shrew, and beaver, alongside their habitat preferences, geographic ranges, and ecological interactions. Each species is described comprehensively, including collection methods, physical measurements, and observations from the field, thereby contributing valuable data to the field of mammalogy and conservation biology. The work not only details individual species but also offers insights into the broader ecological dynamics of the regions explored.
Two New Moles (Genus Scalopus) from Mexico and Texas
"Two New Moles (Genus Scalopus) from Mexico and Texas" by Rollin H. Baker is a scientific publication written in the early 21st century, specifically in the early 1950s. This work is part of the University of Kansas Publications, Museum of Natural History series and focuses on the discovery and description of two new species of moles within the Scalopus genus found in Mexico and Texas. In this publication, Baker details the identification of two specific moles: the new species "Scalopus montanus", found in Coahuila, Mexico, and the subspecies "Scalopus aquaticus alleni", designated from Aransas County, Texas. The text provides thorough measurements, illustrations, and comparative analysis against existing species to highlight their unique characteristics. Baker emphasizes the geographical isolation of "S. montanus" and discusses the implications for the understanding of mole biodiversity in the region. The findings underscore the rich yet underexplored mammalian fauna of the Sierra del Carmen, suggesting that further research may reveal additional species yet to be discovered.
A New Bat (Genus Pipistrellus) from Northeastern Mexico
"A New Bat (Genus Pipistrellus) from Northeastern Mexico" by Rollin H. Baker is a scientific publication written in the mid-20th century. The book presents a detailed study of a newly identified subspecies of the eastern pipistrelle bat found in northeastern Mexico. It contributes to the taxonomy and understanding of bat biodiversity in this specific region. The content of the book focuses on the description and classification of the newly recognized bat subspecies, named "Pipistrellus subflavus clarus". Baker provides extensive morphological data, including size and skull measurements, and contrasts this subspecies with other known varieties of the eastern pipistrelle. The study includes the geographic range of "clarus", primarily in Coahuila, Mexico, and parts of southwestern Texas, highlighting its habitat preferences along riverbanks with particular flora. Baker's meticulous observations aim to enrich the scientific community's knowledge of bat species, emphasizing the importance of preserving biodiversity in these ecosystems.
Mammals from Tamaulipas, Mexico
"Mammals from Tamaulipas, Mexico" by Rollin H. Baker is a scientific publication written in the early 20th century, specifically in the early 1950s. This work primarily focuses on the variety of mammalian species found in the Tamaulipas region of northeastern Mexico, an area characterized by diverse ecosystems influenced by both Nearctic and Neotropical fauna. The book documents the findings from a collection of mammals acquired during fieldwork, contributing to the relatively under-researched understanding of the region’s wildlife. The content of the book includes comprehensive descriptions of several species of mammals collected in Tamaulipas, including details regarding their habitats, physical characteristics, and behaviors. Baker provides insights into previously unrecorded species in the area, highlighting the significance of discoveries such as the brown-bellied wood mouse and notes on the distribution and characteristics of various rodent species. Each chapter meticulously catalogs the specimens examined, emphasizing the ecological importance of the mammals in their habitats along the Sierra Madre Oriental. Overall, the publication serves as a foundational resource for further studies of the region's biology and ecology.
A New Long-eared Myotis (Myotis evotis) From Northeastern Mexico
"A New Long-eared Myotis (Myotis evotis) From Northeastern Mexico" by Rollin H. Baker et al. is a scientific publication written in the mid-20th century. This concise text focuses on the taxonomy and morphological characteristics of a newly identified subspecies of bat found in northeastern Mexico, specifically detailing its differences from related species. The work is part of the University of Kansas Publications and contributes to the field of mammalogy. The book presents detailed findings on the newly named subspecies, Myotis evotis auriculus, highlighting its physical attributes such as size, coloration, and skull measurements, as well as its geographical distribution across areas of Coahuila, Nuevo León, and Tamaulipas. Baker and Staines outline methodologies for capturing specimens, analyses conducted to arrive at their classification, and comparisons to other Myotis species. The publication ultimately serves to enrich the scientific understanding of bat diversity in the region and provides vital information for further studies in mammalian biology and conservation efforts.
Mammals from Southeastern Alaska
"Mammals from Southeastern Alaska" by Rollin H. Baker and James S. Findley is a scientific publication written in the mid-20th century. This work primarily focuses on the study and documentation of various mammal species collected from Southeastern Alaska, emphasizing systematic descriptions, measurements, and comparisons of different species found in the region. The book presents detailed taxonomic information about the mammals collected during fieldwork conducted in 1951, alongside prior studies from previous years. It discusses various species such as the Dusky Shrew, Water Shrew, Little Brown Myotis, and several kinds of squirrels and voles, providing measurements, external characteristics, and distribution information. The authors also explore the relationships among the collected specimens and their classifications, offering insights into the biodiversity of Southeastern Alaska’s mammalian fauna. Overall, it serves as a valuable resource for researchers interested in the zoology and ecology of this specific geographical area.