Males and females of many species can, and do, live separately for long periods of time. This sexual segregation is widespread and can be on social, spatial or habitat scales. An understanding of sexual segregation is important in the explanation of life history and social preference, population dynamics and the conservation of rare species. Sexual Segregation in Vertebrates explores the reasons why this behaviour has evolved and what factors contribute to it.
"This book is about the differing spatial distribution of males and females in species of hooved mammals. This behavior, wherein males and females live separately for long periods of time, has been observed in many species, but the causes of it remain uncertain"--
Covering all thirteen species of wild cattle, Ecology, Evolution and Behaviour of Wild Cattle brings together the contributions of international leading experts on the biology, evolution, conservation status and management of the tribe Bovini, providing: • A comprehensive review of current knowledge on systematic, anatomy and ecology of all wild cattle species (chapters 1 to 8); • A clear understanding of the conservation status of each species and the gaps in our current knowledge (chapters 9 to 20); • A number of case studies on conservation activities and an investigation of some of the most threatened and poorly understood species (chapters 21 to 27). An invaluable resource for students, researchers, and professionals in behavioural ecology, evolutionary biology and conservation biology, this beautifully illustrated reference work reveals the extraordinary link between wild cattle and humans, the benefits some of these species have brought us, and their key roles in their natural ecosystems.
Mountain goats have been among the least studied of North American ungulates, leaving wildlife managers with little information on which to base harvest strategies or conservation plans. This book offers the first comprehensive assessment of the ecology and behavior of mountain goats, setting forth the results of a remarkable 16-year longitudinal study of more than 300 marked individuals in a population in Alberta, Canada. The authors’ thorough, long-term study allowed them to draw important conclusions about mountain goat ecology—including individual reproductive strategies, population dynamics, and sensitivity to human disturbance—and to use those conclusions in offering guidance for developing effective conservation strategies. Chapters examine: -habitat use, vegetation quality, and seasonal movements -sexual segregation and social organization -individual variability in yearly and lifetime reproductive success of females -age- and sex-specific survival and dispersal -reproductive strategies and population dynamics -management and conservation of mountain goats The book also draws on the rich literature on long-term monitoring of marked ungulates to explore similarities and differences between mountain goats and other species, particularly bighorn sheep and ibex. By monitoring a marked population over a long period of time, researchers were able to document changes in sex-age structure and identify factors driving population dynamics. Because it explores the links between individual life-history strategy and population dynamics in a natural setting, Mountain Goats will be an invaluable resource for wildlife managers, researchers in ecology and animal behavior, conservationists, population biologists, and anyone concerned with the ecology and management of natural populations, especially in alpine environments.
Why does it benefit some male and female animals to live separately? 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.
Red Deer: Behavior and Ecology of Two Sexes is the most extensive study yet available of reproduction in wild vertebrate. The authors synthesize data collected over ten years on a population of individually recognizable red deer, usually regarded as conspecific with the American elk. Their results reveal the extent of sex differences in behavior, reproduction, and ecology and make a substantial contribution to our understanding of sexual selection.
Updated to include a new chapter about the influence of social media and the Internet—the 20th anniversary edition of Bowling Alone remains a seminal work of social analysis, and its examination of what happened to our sense of community remains more relevant than ever in today’s fractured America. Twenty years, ago, Robert D. Putnam made a seemingly simple observation: once we bowled in leagues, usually after work; but no longer. This seemingly small phenomenon symbolized a significant social change that became the basis of the acclaimed bestseller, Bowling Alone, which The Washington Post called “a very important book” and Putnam, “the de Tocqueville of our generation.” Bowling Alone surveyed in detail Americans’ changing behavior over the decades, showing how we had become increasingly disconnected from family, friends, neighbors, and social structures, whether it’s with the PTA, church, clubs, political parties, or bowling leagues. In the revised edition of his classic work, Putnam shows how our shrinking access to the “social capital” that is the reward of communal activity and community sharing still poses a serious threat to our civic and personal health, and how these consequences have a new resonance for our divided country today. He includes critical new material on the pervasive influence of social media and the internet, which has introduced previously unthinkable opportunities for social connection—as well as unprecedented levels of alienation and isolation. At the time of its publication, Putnam’s then-groundbreaking work showed how social bonds are the most powerful predictor of life satisfaction, and how the loss of social capital is felt in critical ways, acting as a strong predictor of crime rates and other measures of neighborhood quality of life, and affecting our health in other ways. While the ways in which we connect, or become disconnected, have changed over the decades, his central argument remains as powerful and urgent as ever: mending our frayed social capital is key to preserving the very fabric of our society.
This collection of 20 chapters written by leading evolutionary biologists from around the globe provides a fascinating insight into the patterns and causes of differences between males and females in the natural world.
A book that emphasized the concept of wildlife habitat for a generation of students and professionals is now available to even more readers. "Habitat" is probably the most common term in ecological research. Elementary school students are introduced to the term, college students study the concept in depth, hunters make their plans based on it, nature explorers chat about the different types, and land managers spend enormous time and money modifying and restoring habitats. Although a broad swath of people now have some notion of what habitat is, the scientific community has by and large failed to define it concretely, despite repeated attempts in the literature to come to meaningful conclusions regarding what habitat is and how we should study, manipulate, and ultimately conserve it. Wildlife Habitat Conservation presents an authoritative review of the habitat concept, provides a scientifically rigorous definition, and emphasizes how we must focus on those critical factors contained within what we call habitat. The result is a habitat concept that promises long-term persistence of animal populations. Key concepts and items in the book include: • Rigorous and standard conceptual definitions of wildlife and their habitat. • A discussion of the essential integration of population demographics and population persistence with the concept of habitat. • The importance of carryover and lag effects, behavioral processes, genetics, and species interactions to our understanding of habitat. • An examination of spatiotemporal heterogeneity, realized through fragmentation, disruption to eco-evolutionary processes, and alterations to plant and animal assemblages. • An explanation of how anthropogenic effects alter population size and distribution (isolation), genetic processes, and species diversity (including exotic plants and animals). • Advocacy of proactive management and conservation through predictive modeling, restoration, and monitoring. Each chapter is accessibly written in a style that will be welcomed by private landowners and public resource managers at local, state, and federal levels. Also ideal for undergraduate and graduate natural resource and conservation courses, the book is organized perfectly for a one-semester class. Published in association with The Wildlife Society.
