The Tribe Alasmidontini (Unionidae, Anodontinae) PDF Download
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Author: Arthur Haddleton Clarke
Publisher:
ISBN:
Category : Mollusks
Languages : en
Pages : 75
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Book Description
Author: Arthur Haddleton Clarke
Publisher:
ISBN:
Category : Mollusks
Languages : en
Pages : 75
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Book Description
Author: Richard A. Roth
Publisher:
ISBN:
Category : Freshwater ecology
Languages : en
Pages : 272
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Book Description
"Covers the freshwater biomes that exist in wetlands, ponds and lakes, and rivers and streams, examining all aspects that define these biomes: vegetation, geographical distribution, challenges posed by the environment, adaptation of the plants and animals to the environment, and conservation efforts"--Publisher's description.
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Ecologists
Languages : en
Pages : 2
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Wendell R. Haag
Publisher: Cambridge University Press
ISBN: 0521199387
Category : Nature
Languages : en
Pages : 523
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Book Description
Synthesizes the ecology and natural history of North American freshwater mussels for scientists, natural resource professionals, students and natural history enthusiasts.
Author: Jocelyne Hughes
Publisher: Techniques in Ecology & Conservation
ISBN: 9780198766421
Category : Biotic communities
Languages : en
Pages : 0
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Book Description
This practical manual of freshwater ecology and conservation provides a state-of-the-art review of the approaches and techniques used to measure, monitor, and conserve freshwater ecosystems. It offers a single, comprehensive, and accessible synthesis of the vast amount of literature for freshwater ecology and conservation that is currently dispersed in manuals, toolkits, journals, handbooks, 'grey' literature, and websites. Successful conservation outcomes are ultimately built on a sound ecological framework in which every species must be assessed and understood at the individual, community, catchment and landscape level of interaction. For example, freshwater ecologists need to understand hydrochemical storages and fluxes, the physical systems influencing freshwaters at the catchment and landscape scale, and the spatial and temporal processes that maintain species assemblages and their dynamics. A thorough understanding of all these varied processes, and the techniques for studying them, is essential for the effective conservation and management of freshwater ecosystems.
Author: David L. Rosgen
Publisher:
ISBN: 9780979130830
Category : River sediments
Languages : en
Pages :
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Book Description
Author: Abbie Gascho Landis
Publisher: Island Press
ISBN: 161091807X
Category : Nature
Languages : en
Pages : 266
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Book Description
Abbie Gascho Landis brings readers to a hotbed of mussel diversity, the American Southeast, to seek mussels where they eat, procreate, and, too often, perish. Accompanied often by her husband, a mussel scientist, and her young children, she learned to see mussels on the creekbed, to tell a spectaclecase from a pigtoe, and to worry what vanishing mussels--70 percent of North American species are imperiled--will mean for humans and wildlife alike. Landis shares this journey, traveling from perilous river surveys to dry streambeds and into laboratories where endangered mussels are raised one precious life at a time. Mussels have much to teach us about the health of our watersheds if we step into the creek and take a closer look at their lives. In the tradition of writers like Terry Tempest Williams and Sy Montgomery, Landis gracefully chronicles these untold stories with a veterinarian's careful eye and the curiosity of a naturalist.--
Author: Robert E. Lennon
Publisher:
ISBN:
Category : Brook trout
Languages : en
Pages : 20
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Book Description
The brook trout of Great Smoky Mountains National Park are relatively scarce and are found only in remote, headwater streams. They are also small and short-lived. Males outnumber females, especially among sexually mature fish. The fecundity is lower than in fish of comparable size in Wisconsin and Canadian waters. Under present conditions, any increase in exploitation of the brook trout in the Park or damaging alteration of the habitat might have serious consequences for the remanent populations.
Author: Susan L. Woodward
Publisher: Bloomsbury Publishing USA
ISBN: 0313087423
Category : Science
Languages : en
Pages : 182
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Book Description
Introduction to Biomes is both a standalone summary to the concept of biomes and an introduction to the 8-volume series Greenwood Guides to Biomes of the World. The volume covers: • The biome concept and brief descriptions of vegetation, climate and distribution of the terrestrial and of the range of freshwater and aquatic biomes covered in the set. • Classifying life - how scientists discuss the taxonomic hierarchy and how it has been used to determine how to divide the world into regions based on living organisms. • The ecosystem concept - how this and other major concepts from ecology that are key to understanding biomes. • Terrestrial environments - the various climatic variables and climate types, and a discussion of our changing planet • Aquatic environments and life - how lifeforms and food chains make aquatic environments distinct from terrestrial biomes. Maps, photos, diagrams, drawings, and tables accompany the text, as do sidebars that highlight habitats, species, and ecological relationships. The volume includes a bibliography of accessible resources for further research.
