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Insect Biodiversity

Author: Robert G. Foottit
Publisher: John Wiley & Sons
ISBN: 9781444308228
Size: 19.79 MB
Format: PDF, ePub, Mobi
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Insect Biodiversity: Science and Society brings togetherleading scientific experts to assess the impact insects have onhumankind and the earth’s fragile ecosystems. It examines whyinsect biodiversity matters and how the rapid evolution of insectspecies is affecting us all. Insects and related arthropods make up more than 50 percent ofthe known animal diversity globally, yet a lack of knowledge aboutinsects is hindering the advance of science and society. This bookexplores the wide variety in type and number of insect species andtheir evolutionary relationships. Case studies offer assessments onhow insect biodiversity can help meet the needs of a rapidlyexpanding human population, and also examine the consequences thatan increased loss of insect species will have on the world. The book concludes that a better understanding of the biologyand ecology of insects is the only way to sustainably manageecosystems in an ever changing global environment.

Rapid Bioassessment Of Stream Health

Author: Duncan L. Hughes
Publisher: CRC Press
ISBN: 9781420090932
Size: 72.13 MB
Format: PDF, Mobi
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Tasked by the Clean Water Act to restore and maintain the integrity of their waters, state and local governments must develop systems for assessing the health of the streams within their borders. They quickly find that one size does not fit all when it comes to sampling. Rapid Bioassessment of Stream Health examines the sampling techniques, laboratory methods, and data analysis necessary to create a protocol for analyzing the health of streams, using rapid bioassessment techniques. The editors explore how to determine reference streams in each ecoregion and subecoregion with specific indices of health. They provide field methods for monitoring and sampling invertebrates and laboratory methods for subsampling. The work focuses on the application of the EPA’s Rapid Bioassessment Protocol (RBP) but suggests various techniques that can be used to improve sampling protocols and quality control, where necessary. It also includes general listings of health classifications, appendices of more than 300 streams that have been sampled, and a GIS method for designating the reference condition for purposes of comparison in each ecological unit. Although the EPA’s RBP Manual is considered to be the standard of information on the types of metrics that can be used, this book explores, from a state regulatory standpoint, the practical development of such a system to begin compliance with critical sections of the Clean Water Act. A compendium of information about prioritizing those streams and small rivers requiring analysis, this book contains guidelines on the assessment of streams in a particular ecoregion and sampling streams that are at least impaired as points of comparison. It supplies guidance for the production of other rapid bioassessment tools customized to various ecoregions and subecoregions.

Seasons For Trout

Author: Rick Hafele
Publisher: Stackpole Books
ISBN: 0811760626
Size: 61.27 MB
Format: PDF, Docs
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The fly-fishing trio offers winning practical advice and years of wisdom for catching trout all year long, no matter the season.

Nymph Fishing Rivers And Streams

Author: Rick Hafele
Publisher: Stackpole Books
ISBN: 9780811701693
Size: 28.82 MB
Format: PDF, ePub, Mobi
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Includes a 72-minute DVD demonstrating basic nymph fishing techniques Color photo sequences to teach 11 different nymph fishing methods, including Czech, hinged leader, Leisenring lift, and wet-fly swing Detailed information on imitating mayflies, stoneflies, caddisflies, true flies, scuds, and sow bugs In nature nothing happens without a reason. The difficulty for the angler is merely that the reason is hidden some way beneath the surface.--G. E. M. Skues During the considerable periods of time trout spend feeding exclusively on underwater food forms, nymph fishing can be the most productive, if not the only way to catch fish. But understanding what occurs below the water's surface can be a challenge for even the most experienced angler. In Nymph-Fishing Rivers and Streams, aquatic entomologist and long-time fly fisherman Rick Hafele shares the information necessary to successfully decipher the mysteries of trout life. He starts by explaining their feeding patterns--where trout feed, when they feed, and what's available for them to eat. Sections on tackle and pattern selection help anglers sort through equipment and imitations to find the best outfit for their needs. The DVD complements the photos in the book that show various methods for nymph fishing. Also included is an angler's field guide to nymphs with details on their habitat, importance to trout, and the most effective patterns and fishing tactics to imitate them.

Mosquito Ecology

Author: M. W. Service
Publisher: Springer Science & Business Media
ISBN: 940111868X
Size: 12.94 MB
Format: PDF, ePub
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Numerous methods have been devised to catch mosquitoes and many approaches employed to study their ecology and behaviour but until the first edition of this book in 1976 there was no comprehensive guide to mosquito ecology. New work on the topic has meant that this completely revised and updated second edition was required.