Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior. The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.
Wolves on a wilderness island illuminate lessons on the environment, extinction, and life. For more than a quarter century, celebrated biologist John Vucetich has studied the wolves, and the moose that sustain them, of the boreal forest of Isle Royale National Park, an island in the northwest corner of Lake Superior. During this time, he has witnessed both the near extinction of the local wolf population, driven largely by climate change, and the intensely debated relocation of other wolves to the island in an effort to stabilize and maintain Isle Royale's ecosystem health. In Restoring the Balance, Vucetich combines environmental philosophy with field notes chronicling his day-to-day experience as a scientist. Examining the fate of wolves in the wild, he shares lessons from these wolves and explains their impact on humanity's fundamental responsibilities to the natural world. Vucetich's engaging narrative and unique, clear-eyed perspective provide an accessible course in wolf biology and behavioral ecology. He tackles profound unresolved questions that will shape our future understanding of what it means to be good to life on earth: Are humans the only persons to inhabit Earth, or do we share the planet with uncounted nonhuman persons? What does a healthy relationship with the natural world look like? Should we intervene in nature's course in order to care for it? Touching on the triumph and tragedy of how wolves kill moose to the Shakespearian drama of wolves' social lives, Vucetich comments on ravens, mice, winter ticks, and even a life-changing encounter he shared with a toad. Vucetich produces exquisite insight by masterfully connecting his observations to a far-reaching history of ideas about the environment. Combining natural history and memoir with fascinating commentary on humanity's relationship with nature, Restoring the Balance evokes our connections with wolves as fellow apex predators, demonstrating how our shifting views on nature have implications for both their survival and ours. This book will be treasured by any thoughtful reader looking to deepen their relationship with nature and learn about the wolves of Isle Royale along the way.
A foundational text on animal population conservation featuring practical applications and case studies. The study of animal populations is integral to wildlife ecology and conservation. Analyzing population biology data can help facilitate the recovery of threatened species, manage overabundant species, and ensure sustainable levels of harvest. But for many students, the complex math involved is a barrier to understanding the importance of the data's applications. The emphasis on solving mathematical problems in traditional population biology texts may also seem far removed from the heart of conservation work that students find most compelling. The Biology and Conservation of Animal Populations is built differently. It provides a thorough introduction to this fundamental science in an accessible context that centers conservation, not equations. This textbook, written by prominent conservation scientist, author, and wolf biologist John A. Vucetich, challenges students to think critically about big questions in conservation work—such as what does and does not count as an endangered species and why—and addresses these issues using practical examples and case studies. The crucial mathematics concepts needed to fully understand these issues are explained by directly connecting the equations with their use in efforts to conserve animal populations. Included in the text are explicit learning goals for each chapter, in-depth case studies, and step-by-step exercises demonstrating how to perform calculations and simulations in Excel, and online supplementary materials. Vucetich also gives substantive attention to the growing call for integrative learning by connecting population science to the ethical considerations that guide its application.
The best guide to the birds of Peru—now in a revised paperback edition Birds of Peru is the most complete and authoritative field guide to this diverse, neotropical landscape. It features every one of Peru's 1,817 bird species and shows the distinct plumages of each in 307 superb, high-quality color plates. Concise descriptions and color distribution maps are located opposite the plates, making this book much easier to use in the field than standard neotropical field guides. This fully revised paperback edition includes twenty-five additional species. A comprehensive guide to all 1,817 species found in Peru—one fifth of the world's birds--with subspecies, sexes, age classes, and morphs fully illustrated Designed especially for field use, with vivid descriptive information and helpful identification tips opposite color plates Detailed species accounts, including a full-color distribution map Includes 25 additional species not covered in the first edition Features 3 entirely new plates and more than 25 additional illustrations
A winning portrait of America at its weirdest." — Publishers Weekly STARRED Review From the shrouded forests of the Pacific Northwest to off-the-wall cryptozoological conventions, one man searches high and low for the answer to the question: real or not, why do we want to believe? Bigfoot is an instantly recognizable figure. Through the decades, this elusive primate has been featured in movies and books, on coffee mugs, beer koozies, car polish, and CBD oil. Which begs the question: what is it about Bigfoot that's caught hold of our imaginations? Journalist and self-diagnosed skeptic John O'Connor is fascinated by Sasquatch. Curious to learn more, he embarks on a quest through the North American wilds in search of Bigfoot, its myth and meaning. Alongside an eccentric cast of characters, he explores the zany and secretive world of "cryptozoology," tracking Bigfoot through ancient folklore to Harry and the Hendersons, while examining the forces behind our ever-widening belief in the supernatural. As O'Connor treks through the shrouded forests of the Pacific Northwest, listens to firsthand accounts, and attends Bigfoot conventions, he's left wondering—what happens when the lines between myth and reality blur? Perfect for fans of Bill Bryson and Douglas Preston, and with sharp wit and an adventurous spirit, this heartfelt exploration of a cornerstone of American folklore unpacks why we believe in the things that we do, what that says about us, and how it shapes our world.
Tiny ruby-throated hummingbirds weighing less than a nickel fly from the upper Midwest to Costa Rica every fall, crossing the six-hundred-mile Gulf of Mexico without a single stop. One of the many creatures that commute on the Mississippi Flyway as part of an annual migration, they pass along Chicago’s lakefront and through midwestern backyards on a path used by their species for millennia. This magnificent migrational dance takes place every year in Chicagoland, yet it is often missed by the region’s two-legged residents. The Art of Migration uncovers these extraordinary patterns that play out over the seasons. Readers are introduced to over two hundred of the birds and insects that traverse regions from the edge of Lake Superior to Lake Michigan and to the rivers that flow into the Mississippi. As the only artist in residence at the Field Museum, Peggy Macnamara has a unique vantage point for studying these patterns and capturing their distinctive traits. Her magnificent watercolor illustrations capture flocks, movement, and species-specific details. The illustrations are accompanied by text from museum staff and include details such as natural histories, notable features for identification, behavior, and how species have adapted to environmental changes. The book follows a gentle seasonal sequence and includes chapters on studying migration, artist’s notes on illustrating wildlife, and tips on the best ways to watch for birds and insects in the Chicago area. A perfect balance of science and art, The Art of Migration will prompt us to marvel anew at the remarkable spectacle going on around us.
British Columbia has one of the richest assemblages of bird species in the world. The four volumes of The Birds of British Columbia provide unprecedented coverage of this region's birds, presenting a wealth of information on the ornithological history, habitat, breeding habits, migratory movements, seasonality, and distribution patterns of each of the 472 species of birds. This third volume, covering the first half of the passerines, builds on the authoritative format of the previous bestselling volumes. It contains 89 species, including common ones such as swallows, jays, crows, wrens, thrushes, and starlings. The text is supported by hundreds of full-colour pictures, including unique habitat photographs, detailed distribution maps, and beautiful illustrations of the birds, their nests, eggs, and young. The Birds of British Columbia is a complete reference work for bird-watchers, ornithologists, and naturalists who want in-depth information on the province's regularly occurring and rare birds.
The definitive guide to safely and effectively treating scars—and improving the quality of life for every patient From a team of pioneers in dermatology and laser medicine, Treatment of Scars from Burns and Trauma provides the latest, most innovative methods for treating scars. It provides the essential information you need to know about how scarring occurs, how it affects patients, and how to design and implement the best possible treatment plan. This unparalleled resource covers every angle of scar treatment. First, it explains the fundamentals, including all the clinically relevant elements of wound care, pain, range of motion, and patient selection, along with treatment. It then focuses on treatment—both new and traditional techniques. Finally, it provides best practices for pain, infection, and ulceration management. This unique text covers a broad range of topics and treatments, including: Basic science of scars Patient selection and counseling Dermabrasion Laser-assisted drug delivery Fractional resurfacing Vascular lasers and lights Minimally invasive surgical techniques Treating Keloid and Hypertrophic scars Fat grafting Stem cell transfer
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