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This work examines the values, policies, challenges, and approaches to endangered species conservation over the past 200 years. Using primary source documents and in-depth analysis of the issues, it tracks the evolution of species protection and conservation in the United States, and offers a brief look at global programs in the United States and other parts of the world.

Endangered species. --- Endangered species

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Dear Colleagues, Zoological institutions contribute a large amount of fundamental and applied knowledge on a diverse array of animal species. Despite this significant contribution, research conducted within zoos or other captive wildlife facilities has historically been skewed toward charismatic mammals, which comprise only a small proportion of the species that are held in captive collections. Modern zoos play an important role in animal welfare, conservation, and environmental education; therefore, this shortfall in knowledge may have large, unseen, and negative impacts on these "forgotten species". Hypothesis-driven, experimental research plays a key role in filling these knowledge gaps; however, other avenues of data collection exist which may be equally important. These include observational data (collected without experimental interventions), operational data (data collected within the general management activities of a facility), and incidental data (data collected for one purpose which may reveal further important information when explored in more detail). These unpublished datasets may provide fundamental information on species for which comparatively little is known.

Animal species. --- Animals --- Species --- Classification

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The most authoritative account yet of the status of Australia's birds.

Birds --- Endangered species --- Conservation

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The book includes collection of theoretical papers dealing with the species problem, which is among most fundamental issues in biology. The principal topics are: consideration of the species problem from the standpoint of modern non-classical science paradigm, with emphasis on its conceptual status presuming its analysis within certain conceptual framework; evolutionary emergence of the species as discrete unit of certain level of generality; epistemological consideration of the species as a particular explanatory hypotheses, with respective revised concepts of biodiversity and conservation; considerations of evolutionary and phylogenomic species concepts as candidates for the universal one; re-appraisal of the biological species concept based on the "friend-foe" recognition system; species delimitation approach using multi-locus coalescent-based method; a re-consideration of the Darwin's species concept.

Species. --- Species --- Philosophy. --- Speciation (Biology) --- Biology --- Genetics --- Hybridization --- Organisms --- Biogeography

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"An 'invasive' species (alternatively known as an alien, exotic, injurious, introduced or naturalized, non-native, nonindigenous, nuisance, or noxious species) refers to an animal or plant that is introduced into an environment where it is not native. The introduction of invasive species to the United Stateswhether deliberate or unintentionalfrom around the globe can pose a significant threat to native animal and plant communities, and may result in extinctions of native animals and plants, species disruptions as native and non-native species compete for limited resources, reduced biodiversity, and altered terrestrial or aquatic habitats. This can result in a range of economic, ecologic, and cultural losses, including reduced agricultural output from U.S. farms and ranches; degradation of U.S. waterways, coastal areas, national parks, and forests; and altered urban, suburban, and rural landscapes. Very broadly, the unanswered question regarding invasive species concerns whose responsibility it is to ensure economic integrity and ecological stability in response to the actual or potential impacts of invasive species, and at what cost. As this book shows, the current answer is not simple. It may depend on answers to many other questions: Is the introduction deliberate or accidental? Does it affect agriculture? By what pathway does the new species arrive? Is the potential harm from the species already known? Is the species already established in one area of the country? Finally, if the answers to any of these questions are unsatisfactory, what changes should be made? This book outlines the nature of the invasive species threat, the ability to predict invasions, methods of pest prevention or control, gaps in regulation, and options for congressional action." --

Introduced organisms --- Alien organisms --- Alien species --- Exotic organisms --- Exotic species --- Foreign organisms (Introduced organisms) --- Foreign species (Introduced organisms) --- Introduced species --- Invaders (Organisms) --- Invasive alien species --- Invasive organisms --- Invasive species --- Naturalised organisms --- Naturalized organisms --- Non-indigenous organisms --- Non-indigenous species --- Non-native organisms --- Non-native species --- Nonindigenous organisms --- Nonindigenous species --- Nonnative organisms --- Nonnative species --- Translocated organisms --- Translocated species --- Organisms --- Control --- Government policy --- Law and legislation