Freshwater Mussels Of Texas

Species. Freshwater mussels are the most rapidly declining group of animals in North America. This guide represents a first-ofits-kind reference to assist both biologists and naturalists in the identification and study of freshwater mussels. Freshwater Mussels of Texas contains 224 pages with 226 black and white photographs, 144 color photographs and 79 line drawings covering all 52 species found in Texas waters. Introductory sections cover basic anatomy, reproduction.

Synthesizes the ecology and natural history of North American freshwater mussels for scientists, natural resource professionals, students and natural history enthusiasts.

Freshwater Mussels of Florida is the only comprehensive, illustrated encyclopedia of all recorded species of mussels in the state of Florida.

What good is a rattlesnake? What purpose do animals serve? All species play a vital role in their biological communities, and the removal of just one can have a noticeable and catastrophic ripple effect. Yet social and political pressures frequently pit species conservation against economic progress and prosperity, and scientists fear that we may be in the midst of a mass extinction event. Brian R. Chapman and William I. Lutterschmidt make the case that the effort to preserve animals is the responsibility of every Texan and that biodiversity contributes enormous economic value to the citizens of Texas. Texans on the Brink brings together experts on eighty-eight endangered and threatened animal species of Texas and includes brief descriptions of the processes that state and federal agencies employ to list and protect designated species. Species accounts include a description of the species accompanied by a photograph, an easy-to-read account of the biology and ecology of the species, and a description of efforts underway to preserve the species and its required habitat. Sobering examples of species that were once part of the Texas fauna but are now extinct or extirpated are also given to further demonstrate just how vulnerable biodiversity can be. All species require healthy habitats, and every species—even a rattlesnake—provides important services for the biotic communities in which they live. It is imperative to learn as much as we can about these animals if we are to preserve biodiversity successfully in Texas.

Until now, the research of applied zooarchaeologists has not had a significant impact on the work of conservation scientists. This book is designed to show how zooarchaeology can productively inform conservation science. Conservation Biology and Applied Zooarchaeology offers a set of case studies that use animal remains from archaeological and paleontological sites to provide information that has direct implications for wildlife management and conservation biology. It introduces conservation biologists to zooarchaeology, a sub-field of archaeology and ethnobiology, and provides a brief historical account of the development of applied zooarchaeology. The case studies, which utilize palaeozoological data, cover a variety of animals and environments, including the marine ecology of shellfish and fish, potential restoration sites for Sandhill Cranes, freshwater mussel biogeography and stream ecology, conservation of terrestrial mammals such as American black bears, and even a consideration of the validity of the Pleistocene “rewilding” movement. The volume closes with an important new essay on the history, value, and application of applied zooarchaeology by R. Lee Lyman, which updates his classic 1996 paper that encouraged zooarchaeologists to apply their findings to present-day environmental challenges. Each case study provides detailed analysis using the approaches of zooarchaeology and concludes with precise implications for conservation biology. Essays also address issues of political and social ecology, which have frequently been missing from the discussions of conservation scientists. As the editors note, all conservation actions occur in economic, social, and political contexts. Until now, however, the management implications of zooarchaeological research have rarely been spelled out so clearly.

Need-to-know information on the classification and identificationof aquatic invertebrates This Fourth Edition of the standard reference used by generationsof professionals and students is the source for authoritativeinformation on the natural history, ecology, and taxonomy offree-living American freshwater invertebrates. Completely revisedand updated, this professional field guide features a wealth of newknowledge on invertebrate animal phyla covered in the previousedition as well as fully modified sections on the preparation ofmaterials. Other important features of Pennak's Freshwater Invertebrates ofthe United States, Fourth Edition include: * Current taxonomical arrangements of all freshwater invertebrateanimals, excluding insects * Improved graphical treatments and keys to identification, severalprovided by specialists * Photographs and color plates to aid identification * More than 300 line drawings, many new to this edition * Taxonomic keys carried uniformly to genus level in all but twophyla, with frequent references to species Pennak's Freshwater Invertebrates of the United States, FourthEdition is an indispensable resource for biologists, ecologists,graduate students, and anyone who needs to acquire the thoroughknowledge of aquatic invertebrates that is essential tounderstanding the community structure of freshwater environments.

Rivers of North America, Second Edition features new updates on rivers included in the first edition, as well as brand new information on additional rivers. This new edition expands the knowledge base, providing readers with a broader comparative approach to understand both the common and distinct attributes of river networks. The first edition addressed the three primary disciplines of river science: hydrology, geomorphology, and ecology. This new edition expands upon the interactive nature of these disciplines, showing how they define the organization of a riverine landscape and its processes. An essential resource for river scientists working in ecology, hydrology, and geomorphology. Provides a single source of information on North America’s major rivers Features authoritative information on more than 200 rivers from regional specialists Includes full-color photographs and topographical maps to illustrate the beauty, major features, and uniqueness of each river system Offers one-page summaries help readers quickly find key statistics and make comparisons among rivers