Author: Christopher A. Taylor
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 168

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Book Description

Author: Kevin S. Cummings
Publisher: Natural History Survey
ISBN: 9781882932009
Category : Freshwater mussels
Languages : en
Pages : 194

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Book Description

Author: Michael A. Miller (Ecologist)
Publisher:
ISBN: 9780299294540
Category : Nature
Languages : en
Pages : 312

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Book Description
From spring-fed headwaters to quiet, marshy creeks and from tannin-stained northern reaches to broad southern tributaries winding through farmland, Wisconsin is home to 84,000 miles of streams. This guide is the ultimate companion for learning about Wisconsin stream life. Developed by Wisconsin Department of Natural Resources scientists, with information provided by dozens of biologists and ecologists, Field Guide to Wisconsin Streams is accessible to anglers, teachers and students, amateur naturalists, and experienced scientists alike. More than 1,000 images illustrate the species in this field guide, augmented by detailed descriptions that include look-alikes, ecological and taxonomic notes, and distribution maps. It identifies:• more than 130 common plants• all 120 fishes known to inhabit Wisconsin streams• 8 crayfishes• 50 mussels• 10 amphibians• 17 reptiles• 70 families of insects• other commonly found invertebrates.

Author: Guenter A. Schuster
Publisher: University of Alabama Press
ISBN: 0817321063
Category : Nature
Languages : en
Pages : 519

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Book Description
"This book represents the most in-depth treatment of crayfishes for the state of Alabama to date. Alabama is currently known to host 99 species of crayfishes. The findings in this book are based on more than 9,000 records gathered from across the entire state. The authors collected specimens and data from all of Alabama's major and minor waterways and lakes, as well as specialized habitats such as burrows, roadside ditches, marshes, swamps, and temporary autumnal ponds. They visited all the major museums with holdings of crayfish specimens from Alabama, yielding a list of historical records including 4,259 specimen lots from approximately 2,200 unique locations. These records were used to build a database containing all available specimen metadata, including, but not limited to: species identification, number of individuals collected, location, date of collection, names of collectors, who identified the specimens, and the museum in which they are stored. Field work was conducted over a 14-year period during which a total of 4,487 specimen lots were collected and added to the database from approximately 2,600 unique locations sampled across Alabama. Prior to this book, no single comprehensive book or reference has ever been published on the crayfishes of Alabama. This book compiles 166 years of crayfish distributional and biological data for the 99 known Alabama species. It begins with chapters on the physiography and waterways of Alabama. One chapter discusses the general distributional patterns and habitat associations of Alabama crayfishes. Subsequent chapters discuss crayfish biology, ecology, conservation, and anatomy. Detailed species accounts include descriptions of morphological characters, life color, maximum size, comparative species, distribution and habitat, biology, crayfish associates, and conservation status. Color photographs, morphological plates, and dot maps showing distributions are included for each species; for many species, multiple color photos demonstrate the known color variations within each species. An illustrated key is provided to guide the identification of all 99 species. As the most up-to-date and comprehensive source of information on Alabama crayfishes to date, "Crayfishes of Alabama" provides a new perspective on Alabama's unique place as a biodiversity hotspot. It will be of lasting value to aquatic biologists and ecologists throughout the Southeast and crayfish biologists around the world, as well as of interest to natural resource managers, aquaculture farmers, and naturalists"--

Author: James D. Williams
Publisher: University of Alabama Press
ISBN: 081731847X
Category : Nature
Languages : en
Pages : 525

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

Author: James H. Thorp
Publisher: Academic Press
ISBN: 0123814278
Category : Science
Languages : en
Pages : 301

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Book Description
The Field Guide to Freshwater Invertebrates of North America focuses on freshwater invertebrates that can be identified using at most an inexpensive magnifying glass. This Guide will be useful for experienced nature enthusiasts, students doing aquatic field projects, and anglers looking for the best fish bait, lure, or fly. Color photographs and art, as well as the broad geographic coverage, set this guide apart. 362 color photographs and detailed descriptions aid in the identification of species Introductory chapters instruct the reader on how to use the book, different inland water habitats and basic ecological relationships of freshwater invertebrates Broad taxonomic coverage is more comprehensive than any guide currently available

Author: Francesca Gherardi
Publisher: CRC Press
ISBN: 9789054104698
Category : Science
Languages : en
Pages : 320

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Book Description
From the third international workshop on the subject (U. of Florence, 1997), come 18 papers reviewing the issue of alien crayfish decimating the relatively few native species in European freshwater environments. In a historical and taxonomic context, the initial paper explains why such homogenizatio

Author:
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 118

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Book Description
Voyageurs National Park (VOYA) in northern Minnesota contains significant aquatic resources including 30 lakes and numerous wetlands. This synthesis contains an integrated account of what is known about the aquatic resources of VOYA; compares VOYA resources to those of other areas; and identifies opportunities and needs for future studies and surveys. Surveys and studies in VOYA have identified fifty-four fish species from 16 families 820 vascular plant species and 7 amphibian and 3 reptile species (higher numbers probably occur). Estimates of relative abundance for phyto- and zooplankton vary among VOYA lakes and depths surveyed. The VOYA fish populations and communities have been the most intensively studied. Twenty-eight percent of VOYA wetlands are the result of beaver activity. Mercury contamination and its food-chain bioaccumulation in VOYA are of particular concern. An integrated monitoring plan is needed in VOYA to provide continuous data and information on the complex physical chemical, and biological factors that influence aquatic systems. Resource managers in VOYA will use this information to understand and explain observed changes and to predict the potential for future changes.

Author: Robert A. Francis
Publisher: Routledge
ISBN: 1136461248
Category : Science
Languages : en
Pages : 918

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Book Description
Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.

Author: Richard A. Bradley
Publisher: University of California Press
ISBN: 0520315316
Category : Science
Languages : en
Pages : 284

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Book Description
Spiders are among the most diverse groups of terrestrial invertebrates, yet they are among the least studied and understood. This first comprehensive guide to all 68 spider families in North America beautifully illustrates 469 of the most commonly encountered species. Group keys enable identification by web type and other observable details, and species descriptions include identification tips, typical habitat, geographic distribution, and behavioral notes. A concise illustrated introduction to spider biology and anatomy explains spider relationships. This book is a critical resource for curious naturalists who want to understand this ubiquitous and ecologically critical component of our biosphere.