Author
Sydney Anderson
1927-2018
Sydney Anderson (1927-2018) is a public-domain author available on Rivro. Read free books, explore subjects, and discover related classics.
Subjects
Books by Sydney Anderson
Mammals of Mesa Verde National Park, Colorado
"Mammals of Mesa Verde National Park, Colorado" by Sydney Anderson is a scientific publication written in the early 1960s. This work focuses on the various mammalian species inhabiting Mesa Verde National Park, emphasizing their ecological roles, habitats, and the geographical and environmental factors influencing their distributions. The publication aims to document the range and abundance of these mammals while contributing to conservation efforts and knowledge regarding the park's biodiversity. At the start of the book, Anderson introduces the breathtaking landscape of Mesa Verde, describing its geographical features, climate, and rich history, particularly the significant archaeological context of the area. The narrative then shifts to the motivations behind the study of mammal populations, highlighting the park's unique ecological attributes and the relative lack of disturbance that makes it an ideal research site. The opening portion establishes the foundation for the subsequent detailed accounts of various mammal species studied, showcasing the diverse habitats and ecological interactions present within the park.
The Baculum in Microtine Rodents
"The Baculum in Microtine Rodents" by Sydney Anderson is a scientific publication written in the mid-20th century. This work focuses on the anatomy of the baculum—a bone found in the penis of many placental mammals—and its implications in determining the taxonomy and relationships among various species of microtine rodents, particularly within the genus "Microtus". The text includes detailed anatomical descriptions, methodologies used for specimen collection, and discussions around the significance of the baculum in understanding species variation and evolution. At the start of the publication, Anderson introduces the importance of the baculum in microtine rodents, emphasizing its utility in taxonomic studies when combined with other anatomical features. The opening sets the stage for an intricate examination of previous research on the baculum from different species and varieties of rodents, including "Microtus", "Synaptomys", and "Clethrionomys". The author outlines the methods for preserving and examining the baculum, providing insights into the anatomical orientation and the variations observed across different specimens, thereby establishing a foundation for the detailed accounts that follow in the subsequent chapters.
Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado
"Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado" by Sydney Anderson is a scientific publication written in the mid-20th century. The book focuses on the study of the subspecies of the meadow mouse, specifically Microtus montanus, in the unique ecological regions of Wyoming and Colorado. Through extensive fieldwork and analysis of collected specimens, Anderson explores the variations within the species, influenced by various environmental and geographical factors. In this publication, Anderson examines 1,187 specimens of Microtus montanus collected over several years, detailing the morphological characteristics and measurements of the mice from various localities. The study identifies and describes previously unrecognized subspecies while discussing how geographical barriers and environmental conditions have led to evolutionary variations among isolated populations. It emphasizes the role of moisture and seasonal population fluctuations on the survival and adaptation of these meadow mice, providing significant insights into their ecological niche and evolutionary biology. The findings contribute to a greater understanding of subspeciation and biodiversity within rodent species in North America.
Mammals of the Grand Mesa, Colorado
"Mammals of the Grand Mesa, Colorado" by Sydney Anderson is a scientific publication written in the mid-20th century. This work focuses on the diverse mammalian species found in the unique montane habitat of the Grand Mesa, Colorado, highlighting the ecological significance of this area that stands apart from the surrounding lowlands. The author discusses various mammal species, their habitats, and the ecological observations made during field research. The book provides detailed accounts of 22 species of mammals documented during a field study on the Grand Mesa, along with additional observations of five species. The research gathered by a team from the Museum of Natural History covers the geographical range of certain subspecies, extending known ranges for some mammals westward. The species cataloged include shrews, voles, and various rodents, with discussions on their habitat preferences, reproductive conditions, and ecological roles within the montane ecosystem. Anderson's findings contribute to a better understanding of the wildlife inhabiting this unique high-altitude environment, underscoring the importance of conservation efforts for such specific habitats.
Subspeciation in the Meadow Mouse, Microtus pennsylvanicus, in Wyoming, Colorado, and Adjacent Areas
"Subspeciation in the Meadow Mouse, Microtus pennsylvanicus, in Wyoming, Colorado, and Adjacent Areas" by Sydney Anderson is a scientific publication written in the mid-20th century. This book presents an in-depth study on the subspeciation of the meadow mouse in the specific regions of Wyoming and Colorado, focusing on the morphological variations among different subspecies. The work highlights not only the distinctions between subspecies but also the geographical aspects influencing their distribution. The text elaborates on the processes of subspeciation observed within the meadow mouse, delineating specific subspecies based on color, size, and other morphological traits across various localities. Anderson conducts a thorough examination of 762 specimens, comparing skull measurements and physical characteristics to identify and describe three new subspecies, each adapted to their unique environments. The findings underscore the importance of ecological factors in shaping the physical traits of animal populations over a wide geographic area, providing insights into the evolutionary dynamics of these rodents.
Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua
"Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua" by Sydney Anderson and J. Knox Jones, Jr. is a scientific publication released in the early 1960s. This work documents the findings of various species of harvest mice collected in Central America, particularly focusing on their geographic distribution, physical characteristics, and the description of a newly identified subspecies from Nicaragua. The book presents a detailed analysis of specimens collected from different locations across Central America, providing insights into the taxonomy and variation of the harvest mice, particularly those belonging to the genus Reithrodontomys. It outlines the methodology of the research, significant findings concerning known species, and the characteristics that distinguish the new subspecies, referred to as "Reithrodontomys fulvescens meridionalis". The text is rich with statistical data, measurements, and comparative analysis, catering to professionals in the field of mammalogy and conservation, as well as contributing to the broader understanding of rodent biodiversity in the region.
Neotropical Bats from Western México
"Neotropical Bats from Western México" by Sydney Anderson is a scientific publication written in the mid-20th century. This book explores the distribution, variation, and reproductive data of various tropical fruit-eating bats, particularly focusing on the genus "Artibeus", found in western coastal regions of Mexico. It serves as a contribution to the understanding of bat species in this neotropical region, compiling significant findings from fieldwork supported by multiple institutions. The content of the book provides detailed information on several species of bats, including "Artibeus hirsutus", "Artibeus jamaicensis jamaicensis", and others, delineating their range extensions and physical characteristics over the region of western Mexico. Anderson presents a thorough examination of specimens collected during various expeditions, detailing measurements, sex differences, and reproductive data. The findings enhance the existing knowledge of bat distribution in Mexico, suggesting possible reconsiderations of previously established geographical limits for these species. Overall, the publication is a crucial reference for researchers and enthusiasts interested in the biodiversity and ecological significance of bats in neotropical habitats.
Extensions of Known Ranges of Mexican Bats
"Extensions of Known Ranges of Mexican Bats" by Sydney Anderson is a scientific publication written in the mid-20th century. This report details the findings related to the geographic distribution of various bat species in Mexico, highlighting previously undocumented ranges and expanding scientific knowledge about these mammals. The work is part of the University of Kansas Publications, specifically from the Museum of Natural History. In this concise study, Anderson presents new records of several bat species that have been discovered in areas north of their previously established ranges. The author provides detailed accounts of various species, including their collection locations and the extent of distribution changes, thereby contributing valuable information to the field of zoology and specifically the study of North American mammals. This work emphasizes the importance of continued research in tropical regions, suggesting that further exploration may uncover even more species beyond those currently known, thereby enriching our understanding of biodiversity in Mexico.