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"Predatory animals."
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Fierce predators
Seeing a wolf stalking its prey would be almost impossible to witness up close. It wouldn't be safe to be so near such a deadly predator's jaws when it's on the hunt. But in this book, readers can see wolves, owls, and many more terrifying predators do what they do best, capture prey. Up-close, full-color photographs highlight the sharp teeth, long claws, and huge paws of some of the world's deadliest animals. Fact boxes include fascinating information about animal bodies and behavior and statistics about each animal's size, range, and lifespan.
Book
Animal Vigilance
Animal Vigilance builds on the author's previous publication with Academic Press ( Social Predation: How Group Living Benefits Predators and Prey ) by developing several other themes including the development and mechanisms underlying vigilance, as well as developing more fully the evolution and function of vigilance. Animal vigilance has been at the forefront of research on animal behavior for many years, but no comprehensive review of this topic has existed. Students of animal behavior have focused on many aspects of animal vigilance, from models of its adaptive value to empirical research in the laboratory and in the field. The vast literature on vigilance is widely dispersed with often little contact between models and empirical work and between researchers focusing on different taxa such as birds and mammals. Animal Vigilance fills this gap in the available material. * Tackles vigilance from all angles, theoretical and empirical, while including the broadest range of species to underscore unifying themes * Discusses several newer developments in the area, such as vigilance copying and effect of food density * Highlights recent challenges to assumptions of traditional models of vigilance, such as the assumption that vigilance is independent among group members, which is reviewed during discussion of synchronization and coordination of vigilance in a group * Written by a top expert in animal vigilance
eBook
The Wolf's Tooth
Animals such as wolves, sea otters, and sharks exert a disproportionate influence on their environment; dramatic ecological consequences can result when they are removed from—or returned to—an ecosystem.In The Wolf's Tooth, scientist and author Cristina Eisenberg explores the concept of \"trophic cascades\" and the role of top predators in regulating ecosystems. Her fascinating and wide-ranging work provides clear explanations of the science surrounding keystone predators and considers how this notion can help provide practical solutions for restoring ecosystem health and functioning.Eisenberg examines both general concepts and specific issues, sharing accounts from her own fieldwork to illustrate and bring to life the ideas she presents. She considers how resource managers can use knowledge about trophic cascades to guide recovery efforts, including how this science can be applied to move forward the bold vision of rewilding the North American continent. In the end, the author provides her own recommendations for local and landscape-scale applications of what has been learned about interactive food webs.At their most fundamental level, trophic cascades are powerful stories about ecosystem processes—of predators and their prey, of what it takes to survive in a landscape, of the flow of nutrients. The Wolf's Tooth is the first book to focus on the vital connection between trophic cascades and restoring biodiversity and habitats, and to do so in a way that is accessible to a diverse readership.
eBook
Powerful predators
Natures top hunters range from the massive polar bear to the (relatively) small praying mantis. But they all have one thing in common: They're built to kill. This book brings readers right into the action.
Book
Ultimate predatorpedia : the most complete predator reference ever
\"Reference book for children about all predators in the animal world\"-- Provided by publisher.
Book
Climate change and overfishing increase neurotoxicant in marine predators
More than three billion people rely on seafood for nutrition. However, fish are the predominant source of human exposure to methylmercury (MeHg), a potent neurotoxic substance. In the United States, 82% of population-wide exposure to MeHg is from the consumption of marine seafood and almost 40% is from fresh and canned tuna alone
. Around 80% of the inorganic mercury (Hg) that is emitted to the atmosphere from natural and human sources is deposited in the ocean
, where some is converted by microorganisms to MeHg. In predatory fish, environmental MeHg concentrations are amplified by a million times or more. Human exposure to MeHg has been associated with long-term neurocognitive deficits in children that persist into adulthood, with global costs to society that exceed US$20 billion
. The first global treaty on reductions in anthropogenic Hg emissions (the Minamata Convention on Mercury) entered into force in 2017. However, effects of ongoing changes in marine ecosystems on bioaccumulation of MeHg in marine predators that are frequently consumed by humans (for example, tuna, cod and swordfish) have not been considered when setting global policy targets. Here we use more than 30 years of data and ecosystem modelling to show that MeHg concentrations in Atlantic cod (Gadus morhua) increased by up to 23% between the 1970s and 2000s as a result of dietary shifts initiated by overfishing. Our model also predicts an estimated 56% increase in tissue MeHg concentrations in Atlantic bluefin tuna (Thunnus thynnus) due to increases in seawater temperature between a low point in 1969 and recent peak levels-which is consistent with 2017 observations. This estimated increase in tissue MeHg exceeds the modelled 22% reduction that was achieved in the late 1990s and 2000s as a result of decreased seawater MeHg concentrations. The recently reported plateau in global anthropogenic Hg emissions
suggests that ocean warming and fisheries management programmes will be major drivers of future MeHg concentrations in marine predators.
Journal Article
Wild predators
\"Go hunting with the world's most amazing predators, such as sharks, lions, and crocodiles\"-- Provided by publisher.
Book