Carnivores have always fascinated us, even though they make up only 10% of all mammalian genera and only about 2% of all mammalian biomass. In Greek mythology most of the gods adorned their robes and helmets with depictions of carnivores, and the great hero Hercules' most famous feat was killing the "invulnerable" lion with his bare hands. Part· of our fascination with carnivores stems from fright and intrigue, and sometimes even hatred because of our direct competition with them. Cases of "man-eating" lions, bears, and wolves, as well as carnivores' reputation as killers of livestock and game, provoke communities and governrpents to adopt sweeping policies to exterminate them. Even President Theodore Roosevelt, proclaimer of a new wildlife protectionism, described the wolf as "the beast of waste and desolation. " The sheer presence and power of carnivores is daunt ing: they can move quickly yet silently through forests, attaining rapid bursts of speed when necessary; their massive muscles are aligned to deliver powerful attacks, their large canines and strong jaws rip open carcasses, and their scis sor-like carnassials slice meat. Partly because of our fear of these attributes, trophy hunting of carnivores has been, and to a certain extent still is, a sign of bravery and skill. Among some Alaskan Inuit, for example, a man is not eligible for marriage until he has killed a succession of animals of increasing size and dangerousness, culminating with the most menacing, the polar bear.
Marvel at the biological and evolutionary factors that drive teenage behavior and achievement! Thrill to a vision of a better school for the teenage brain!
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.
Bridges the gap between social and environmental critiques of capitalism In the nineteenth century, Karl Marx, inspired by the German chemist Justus von Liebig, argued that capitalism’s relation to its natural environment was that of a robbery system, leading to an irreparable rift in the metabolism between humanity and nature. In the twenty-first century, these classical insights into capitalism’s degradation of the earth have become the basis of extraordinary advances in critical theory and practice associated with contemporary ecosocialism. In The Robbery of Nature, John Bellamy Foster and Brett Clark, working within this historical tradition, examine capitalism’s plundering of nature via commodity production, and how it has led to the current anthropogenic rift in the Earth System. Departing from much previous scholarship, Foster and Clark adopt a materialist and dialectical approach, bridging the gap between social and environmental critiques of capitalism. The ecological crisis, they explain, extends beyond questions of traditional class struggle to a corporeal rift in the physical organization of living beings themselves, raising critical issues of social reproduction, racial capitalism, alienated speciesism, and ecological imperialism. No one, they conclude, following Marx, owns the earth. Instead we must maintain it for future generations and the innumerable, diverse inhabitants of the planet as part of a process of sustainable human development.
Dugongs and manatees, the only fully aquatic herbivorous mammals, live in the coastal waters, rivers and lakes of more than 80 subtropical and tropical countries. Symbols of fierce conservation battles, sirenian populations are threatened by multiple global problems. Providing comparative information on all four surviving species, this book synthesises the ecological and related knowledge pertinent to understanding the biology and conservation of the sirenia. It presents detailed scientific summaries, covering sirenian feeding biology; reproduction and population dynamics; behavioural ecology; habitat requirements and threats to their continued existence. Outlining the current conservation status of the sirenian taxa, this unique study will equip researchers and professionals with the scientific knowledge required to develop proactive, precautionary and achievable strategies to conserve dugongs and manatees. Supplementary material is available online at: www.cambridge.org/9780521888288.
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