Search

Why does it benefit some male and female animals to live separately? Winner of the Wildlife Society Publication Best Authored Book Award by The Wildlife Society Sexual segregation, wherein the sexes of a species live apart for long periods of time, has far-reaching consequences for the ecology, behavior, and conservation of hooved mammals, which are called ungulates. Award-winning researcher R. Terry Bowyer has spent the past four decades unravelling the causes and consequences of this perplexing phenomenon by studying ungulates and the large carnivores that prey upon them. In Sexual Segregation in Ungulates, Bowyer's critical, thought-provoking approach helps resolve long-standing disagreements concerning sexual segregation and offers future pathways for species and habitat conservation. He highlights important elements of the natural history of wild ungulate species, including bighorn sheep and elk. He then uses this perspective to frame and test hypotheses illuminating the motivations behind sexual segregation. He investigates the role of sexual segregation in mechanisms underpinning ungulate mating systems, sexual dimorphism, paternal behavior, and population dynamics. Bowyer's research spans ecosystems from deserts to the Arctic and involves most species of ungulates inhabiting the North American continent. He also provides a timely review of sexual segregation for species of plants and other animals, including humans. Covering definitions, theory, findings, and practical applications of related study, Bowyer describes the behavioral patterns related to sexual segregation, explains how to detect these patterns, and considers the implications of sexual segregation for new approaches to conservation and management of ungulates and other species of wildlife. This book is essential reading for scientists and all those interested in the conservation and management of species, including wildlife professionals, hunters, outdoor enthusiasts, and naturalists.

Why does it benefit some male and female animals to live separately? Winner of the Wildlife Society Publication Best Authored Book Award by The Wildlife Society Sexual segregation, wherein the sexes of a species live apart for long periods of time, has far-reaching consequences for the ecology, behavior, and conservation of hooved mammals, which are called ungulates. Award-winning researcher R. Terry Bowyer has spent the past four decades unravelling the causes and consequences of this perplexing phenomenon by studying ungulates and the large carnivores that prey upon them. In Sexual Segregation in Ungulates, Bowyer's critical, thought-provoking approach helps resolve long-standing disagreements concerning sexual segregation and offers future pathways for species and habitat conservation. He highlights important elements of the natural history of wild ungulate species, including bighorn sheep and elk. He then uses this perspective to frame and test hypotheses illuminating the motivations behind sexual segregation. He investigates the role of sexual segregation in mechanisms underpinning ungulate mating systems, sexual dimorphism, paternal behavior, and population dynamics. Bowyer's research spans ecosystems from deserts to the Arctic and involves most species of ungulates inhabiting the North American continent. He also provides a timely review of sexual segregation for species of plants and other animals, including humans. Covering definitions, theory, findings, and practical applications of related study, Bowyer describes the behavioral patterns related to sexual segregation, explains how to detect these patterns, and considers the implications of sexual segregation for new approaches to conservation and management of ungulates and other species of wildlife. This book is essential reading for scientists and all those interested in the conservation and management of species, including wildlife professionals, hunters, outdoor enthusiasts, and naturalists.

Outlines the ecological fundamentals, assumptions, and techniques for reconstructing past environments using fossil animals from archaeological and paleontological sites.

Never has there been a president less content to sit still behind a desk than Theodore Roosevelt. When we picture him, he's on horseback or standing at a cliff’s edge or dressed for safari. And Roosevelt was more than just an adventurer—he was also a naturalist and campaigner for conservation. His love of the outdoor world began at an early age and was driven by a need not to simply observe nature but to be actively involved in the outdoors—to be in the field. As Michael R. Canfield reveals in Theodore Roosevelt in the Field, throughout his life Roosevelt consistently took to the field as a naturalist, hunter, writer, soldier, and conservationist, and it is in the field where his passion for science and nature, his belief in the manly, “strenuous life,” and his drive for empire all came together. Drawing extensively on Roosevelt’s field notebooks, diaries, and letters, Canfield takes readers into the field on adventures alongside him. From Roosevelt’s early childhood observations of ants to his notes on ornithology as a teenager, Canfield shows how Roosevelt’s quest for knowledge coincided with his interest in the outdoors. We later travel to the Badlands, after the deaths of Roosevelt’s wife and mother, to understand his embrace of the rugged freedom of the ranch lifestyle and the Western wilderness. Finally, Canfield takes us to Africa and South America as we consider Roosevelt’s travels and writings after his presidency. Throughout, we see how the seemingly contradictory aspects of Roosevelt’s biography as a hunter and a naturalist are actually complementary traits of a man eager to directly understand and experience the environment around him. As our connection to the natural world seems to be more tenuous, Theodore Roosevelt in the Field offers the chance to reinvigorate our enjoyment of nature alongside one of history’s most bold and restlessly curious figures.

"Integration of individual-based and population-based studies is essential to understanding effects of pollution on populations and ecosystems. Here we provide an example of such integration from our exploration of effects on the Exxon Valdez oil spill (EVOS) on river otters (Lontra canadensis) inhabiting the terrestrial-marine interface in Prince William Sound, Alaska, USA. Our research was divided into 2 phases: an early phase (1989-92) immediately following the oil spill; and a late phase (1996-99), which focused on potential chronic effects of oil contamination in the Sound. We used a variety of measurements that considered the physiological status and health of individual river otters, as well as aspects of their ecology, behavior, and demography. We then conducted meta-analysis to explore interactions between individual-based and population-level data in demonstrating injury and subsequent recovery of otters from ill effects of EVOS. During both phases of our studies, we first conducted intensive research at 2 study sites, which we believed to be oil and non-oiled, and then expanded our investigations throughout similar areas of Prince William Sound. Nonetheless, our data are best interpreted as differences between heavily oiled areas and lightly oiled sites because later information indicated that our reference sites were lightly oiled. Thus we refer to heavily oiled sites as oiled and lightly oil sites as 'nonoiled'"--page 1.

A reassessment of the studies done on this deer herd over the years and their implications for state wildlife management agencies.

This book is a compilation of selected papers presented at the Second North American Symposium on Wolves, held in Edmonton in August 1992.

"Integration of individual-based and population-based studies is essential to understanding effects of pollution on populations and ecosystems. Here we provide an example of such integration from our exploration of effects on the Exxon Valdez oil spill (EVOS) on river otters (Lontra canadensis) inhabiting the terrestrial-marine interface in Prince William Sound, Alaska, USA. Our research was divided into 2 phases: an early phase (1989-92) immediately following the oil spill; and a late phase (1996-99), which focused on potential chronic effects of oil contamination in the Sound. We used a variety of measurements that considered the physiological status and health of individual river otters, as well as aspects of their ecology, behavior, and demography. We then conducted meta-analysis to explore interactions between individual-based and population-level data in demonstrating injury and subsequent recovery of otters from ill effects of EVOS. During both phases of our studies, we first conducted intensive research at 2 study sites, which we believed to be oil and non-oiled, and then expanded our investigations throughout similar areas of Prince William Sound. Nonetheless, our data are best interpreted as differences between heavily oiled areas and lightly oiled sites because later information indicated that our reference sites were lightly oiled. Thus we refer to heavily oiled sites as oiled and lightly oil sites as 'nonoiled'"--page 1.

After beginning his career as an architect in London, Calvert Vaux (1824-1895) came to the Hudson River valley in 1850 at the invitation of Andrew Jackson Downing, the reform-minded writer on houses and gardens. As Downing's partner, and after Downing's death in 1852, Vaux designed country and suburban dwellings that were remarkable for their well-conceived plans and their sensitive rapport with nature. By 1857, the year he published his book Villas and Cottages, Vaux had moved to New York City. There he asked Frederick Law Olmsted to join him in preparing a design for Central Park. He spent the next 38 years defending and refining their vision of Central Park as a work of art. After the Civil War, he and Olmsted led the nascent American park movement with their designs for parks and parkways in Brooklyn, Buffalo, and many other American cities. Apart from undertakings with Olmsted, Vaux cultivated a distinguished architectural practice. Among his clients were the artist Frederic Church, whose dream house, Olana, he helped create; and the reform politician Samuel Tilden, whose residence on New York's Gramercy Park remains one of the country's outstanding Victorian buildings. A pioneering advocate for apartment houses in American cities, Vaux designed buildings that mirrored the advance of urbanization in America, including early model housing for the poor. He planned the original portions of the Metropolitan Museum of Art and the American Museum of Natural History and conceived a stunning proposal for a vast iron and glass building to house the Centennial Exhibition in Philadelphia. Especially notable are the many bridges and other charming structures that he designed for Central Park. Vaux considered the Park's Terrace, decorated by J. W. Mould, as his greatest achievement. An active participant in the cultural and intellectual life of New York, Vaux was an idealist who regarded himself as an artist and a professional. And while much has been written on Olmsted, comparatively little has been published about Vaux. The first in-depth account of Vaux's career, Country, Park, and City should be of great interest to historians of art, architecture, and urbanism, as well as preservationists and other readers interested in New York City's past and America's first parks.