Download or read book Stream Insects of the Pacific Northwest written by Patrick Edwards and published by . This book was released on 2008 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Entomology written by W. Patrick McCafferty and published by Jones & Bartlett Learning. This book was released on 1983 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in language that is accessible to the sports fisherman and the naturalist and with over 1,000 original illustrations, the book includes features such as coverage of all insect families and genera important to fly fishing; comphrensive treatment of the biology of all life stages of aquatic insects including terrestrial as well as aquatic stages; special chapters on shore dwelling insects, insects associated with aquatic vascular plants, residents of tree holes and plant cups, aquatic arachnids and freshwater crustaceans.
Download or read book An Obsession With Butterflies written by Sharman Apt Russell and published by Basic Books. This book was released on 2009-04-24 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharman Apt Russell again blends her lush voice and keen scientific eye in this marvelous book about butterflies. From Hindu mythology to Aztec sacrifices, butterflies have served as a metaphor for resurrection and transformation. Even during World War II, children in a Polish death camp scratched hundreds of butterflies onto the walls of their barracks. But as Russell points out in this rich and lyrical meditation, butterflies are above all objects of obsession. From the beastly horned caterpillar, whose blood helps it count time, to the peacock butterfly, with wings that hiss like a snake, Russell traces the butterflies through their life cycles, exploring the creatures' own obsessions with eating, mating, and migrating. In this way, she reveals the logic behind our endless fascination with butterflies as well as the driving passion of such legendary collectors as the tragic Eleanor Glanville, whose children declared her mad because of her compulsive butterfly collecting, and the brilliant Henry Walter Bates, whose collections from the Amazon in 1858 helped develop his theory of mimicry in nature. Russell also takes us inside some of the world's most prestigious natural history museums, where scientists painstakingly catalogue and categorize new species of Lepidoptera, hoping to shed light on insect genetics and evolution. A luminous journey through an exotic world of obsession and strange beauty, this is a book to be treasured by anyone who's ever watched a butterfly mid-flight and thought, as Russell has, "I've entered another dimension."
Download or read book Ecology and Impacts of Forest Insects of the Pacific Northwest written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1972 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River and Stream Ecosystems of the World written by Colbert E. Cushing and published by Univ of California Press. This book was released on 2006-02-06 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ia a synopsis and review of the major rivers of the world.
Download or read book Influence of Riparian Canopy on Macroinvertebrate Composition and Food Habits of Juvenile Salmonids in Several Oregon Streams written by William R. Meehan and published by . This book was released on 1996 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Esfenvalerate on Native Macroinvertebrates Representative of Pacific Northwest Streams written by Katherine R. Johnson and published by . This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic insects are essential components of healthy stream ecosystems, contributing to nutrient cycling, trophic dynamics and other ecological functions. Aquatic insect species, particularly those in the orders Ephemeroptera, Plecoptera and Trichoptera (EPT taxa) are however, extremely sensitive to insecticide contamination. Given that urban and agricultural use of synthetic pyrethroid insecticides are increasing, there is concern that aquatic contamination by these compounds may pose a risk to aquatic insect species. The overarching hypothesis of this research is that specific aquatic insect life history attributes may increase their susceptibility to synthetic pyrethroid insecticides, through an exacerbation of toxic effects and/or enhancement of exposure. The goals of this work were (a) to determine if egg morphology affects esfenvalerate sensitivity, (b) to ascertain the impact of dietary exposure to esfenvalerate among different functional feeding groups, (c) to determine the effect of esfenvalerate intoxication on larval caddisfly case maintenance, and (d) to establish the effects of late-stage esfenvalerate exposure on emergence. Four different aquatic insect species were utilized during the course of these studies; Cinygmula reticulata McDonough (Ephemeroptera: Heptageniidae), Hesperoperla pacifica Banks (Plecoptera: Perlidae), and Brachycentrus americanus Banks (Trichoptera: Brachycentridae) were used in the majority of the experiments. Baetis sp. (Ephemeroptera: Baetidae) egg clutches were utilized as a surrogate for the difficult-to-obtain C. reticulata eggs. Esfenvalerate toxicity testing with aquatic insect eggs indicated that 48h esfenvalerate exposures ranging between 0.07 and 0.5 ug/L caused significant Baetis sp egg mortality. Exposure to lower concentrations immediately preceding hatch resulted in behavioral aberrations in first instar mayflies. The gelatinous clutch structure of caddisfly eggs proved to be the most susceptible egg morphology tested, with significant within-clutch mortality occurring following esfenvalerate exposures of 0.035 ug/L. No toxic effect was observed in H. pacifica eggs exposed to up to 1.0 ug/L esfenvalerate. Esfenvalerate-contaminated food caused adverse effects in both C. reticulata and B. americanus insects, but not in H. pacifica nymphs. A significant decrease in growth was observed in small C. reticulata nymphs reared on 0.05 ug/L esfenvalerate-exposed algae, and a decrease in egg production in final-instar nymphs reared on 0.1 ug/L esfenvalerate-exposed algae. Diet items exposed to esfenvalerate concentrations ranging between 0.5 to 1.0 ug/L induced case-abandonment in fourth-instar B. americanus larvae. None of the aquatic insect species differentiated between esfenvalerate-contaminated and clean food sources during feeding. 48h waterborne exposures of 0.05, 0.1, 0.2, and 0.4 ug/L esfenvalerate also caused fourth-instar larvae to abandon cases, and impaired their ability to rebuild these protective structures. Finally, C. reticulata emergence was disrupted by esfenvalerate exposures ranging from 0.005 to 0.015 ug/L, resulting in significant mortality. B. americanus pupal exposures of 0.05, 0.1, and 0.2 ug/L esfenvalerate significantly reduced successful adult emergence and resulted in decreased egg weight of emerged females. A comparison of life stage esfenvalerate sensitivities of C. reticulata and B. americanus reveals that analogous life stages did not exhibit the same relative susceptibilities, with final-instar nymphs the most sensitive C. reticulata life stage tested, and egg clutches as the most sensitive B. americanus life stage.
Download or read book BugWater written by Arlen Read Thomason and published by Stackpole Books. This book was released on 2009-12 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bugwater is that soggy place inhabited by creepy, crawly, hopping, flying, wriggling creatures we call, if imprecisely, bugs. Organized around the seasons, BugWater follows the bugs and the trout through their life cycles from spring through winter. Thomason's stunningly striking photos and fascinating narratives show off the bugs up close, in amazing detail. With the author's insights as both a scientist and fly fisher and his expertise as a photographer, this book delivers solid content all fly fisher's can learn from. Covers all popular trout foods--mayflies, caddis, stoneflies, midges Startling, spectacular photos of the bugs up close
Download or read book 100 Plants to Feed the Bees written by The Xerces Society and published by Storey Publishing. This book was released on 2016-11-29 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international bee crisis is threatening our global food supply, but this user-friendly field guide shows what you can do to help protect our pollinators. The Xerces Society for Invertebrate Conservation offers browsable profiles of 100 common flowers, herbs, shrubs, and trees that support bees, butterflies, moths, and hummingbirds. The recommendations are simple: pick the right plants for pollinators, protect them from pesticides, and provide abundant blooms throughout the growing season by mixing perennials with herbs and annuals! 100 Plants to Feed the Bees will empower homeowners, landscapers, apartment dwellers — anyone with a scrap of yard or a window box — to protect our pollinators.
Download or read book Real Gardens Grow Natives written by Eileen M Stark and published by Mountaineers Books. This book was released on 2014-09-24 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: CLICK HERE to download sample native plants from Real Gardens Grow Natives For many people, the most tangible and beneficial impact they can have on the environment is right in their own yard. Aimed at beginning and veteran gardeners alike, Real Gardens Grow Natives is a stunningly photographed guide that helps readers plan, implement, and sustain a retreat at home that reflects the natural world. Gardening with native plants that naturally belong and thrive in the Pacific Northwest’s climate and soil not only nurtures biodiversity, but provides a quintessential Northwest character and beauty to yard and neighborhood! For gardeners and conservationists who lack the time to read through lengthy design books and plant lists or can’t afford a landscape designer, Real Gardens Grow Natives is accessible yet comprehensive and provides the inspiration and clear instruction needed to create and sustain beautiful, functional, and undemanding gardens. With expert knowledge from professional landscape designer Eileen M. Stark, Real Gardens Grow Natives includes: * Detailed profiles of 100 select native plants for the Pacific Northwest west of the Cascades, plus related species, helping make plant choice and placement. * Straightfoward methods to enhance or restore habitat and increase biodiversity * Landscape design guidance for various-sized yards, including sample plans * Ways to integrate natives, edibles, and nonnative ornamentals within your garden * Specific planting procedures and secrets to healthy soil * Techniques for propagating your own native plants * Advice for easy, maintenance using organic methods
Download or read book Aquatic Insects in Alaska written by John Hudson and published by . This book was released on 2012 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to the Aquatic Insects of North America written by Richard W. Merritt and published by Kendall Hunt. This book was released on 1996 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trout Fishing in the Pacific Northwest written by Gary Lewis and published by Cool Springs Press. This book was released on 2008-11-15 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best book for North America's best trout region The Pacific Northwest is a hotbed of freshwater angling activity with approximately 50% of the resident population wetting a line each year. This is also a popular destination area for fly anglers from around the world who come to experience unsurpassed trout fishing. This book reveals specific strategies and locations for the best fishing in the region. More than 300 step-by-step photos teach the important fishing skills, and in-depth chapters give insight into trout biology and behavior, guaranteeing that anglers will increase their catch. Contents include: • Secrets to Fishing the Pacific Northwest • Understanding Trout & Salmon • Equipment • Stream-Fishing Techniques • Spinning & Baitcasting Techniques • Techniques for Special Waters • Fishing for Trophy Trout
Download or read book The Chironomidae written by P.D. Armitage and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dipteran family Chironomidae is the most widely distributed and frequently the most abundant group of insects in freshwater, with rep resentatives in both terrestrial and marine environments. A very wide range of gradients of temperature, pH, oxygen concentration, salinity, current velocity, depth, productivity, altitude and latitude have been exploited, by at least some chironomid species, and in grossly polluted environments chironomids may be the only insects present. The ability to exist in such a wide range of conditions has been achieved largely by behavioural and physiological adaptations with relatively slight morphological changes. It has been estimated that the number of species world-wide may be as high as 15000. This high species diversity has been attributed to the antiquity of the family, relatively low vagility leading to isolation, and evolutionary plasticity. In many aquatic ecosystems the number of chironomid species present may account for at least 50% of the total macroinvertebrate species recorded. This species richness, wide distribution and tolerance to adverse conditions has meant that the group is frequently recorded in ecological studies but taxonomic difficulties have in the past prevented non-specialist identification beyond family or subfamily level. Recent works, including genetic studies, have meant that the family is receiving much more attention globally.
Download or read book Monitoring Wilderness Stream Ecosystems written by and published by . This book was released on 2001 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: A protocol and methods for monitoring the major physical, chemical, and biological components of stream ecosystems are presented. The monitoring protocol is organized into four stages. At stage 1 information is obtained on a basic set of parameters that describe stream ecosystems. Each following stage builds upon stage 1 by increasing the number of parameters and the detail and frequency of the measurements. Stage 4 supplements analyses of stream biotic structure with measurements of stream function: carbon and nutrient processes. Standard methods are presented that were selected or modified through extensive field application for use in remote settings.
Download or read book Annotated List of Publications of the Pacific Northwest Forest and Range Experiment Station written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.). and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulated Streams written by J. Craig and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
