Download or read book Evaluation of Gila Orcutti for Use in Mosquito Control and the Effect of Fish Exudates on Choice of Culicid Oviposition Sites written by Alex R. Van Dam and published by . This book was released on 2007 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the American Mosquito Control Association written by and published by . This book was released on 2007 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master s Theses Directories written by and published by . This book was released on 2007 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Download or read book The Use of Fish for Mosquito Control written by Rockefeller Foundation. International Health Board and published by . This book was released on 1924 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oviposition Site Selection by Mosquitoes written by Lauren L.- Eveland and published by . This book was released on with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oviposition site selection is a critical reproductive behavior for egg-laying organisms that offer little to no parental care. Determining the mechanisms females use to assess sites is critical to understanding life history traits, community structure, and species interactions. Mosquitoes are excellent model organisms for studying oviposition site selection for numerous reasons: 1) a poor decision can lead to zero reproductive success, 2) females actively assess and choose among habitat patches when locating an oviposition site, 3) larvae remain in the habitat where they hatch until they metamorphose, and 4) they lay conspicuous egg rafts that allow direct assessment of oviposition. Certain mosquito species actively detect and avoid habitats with predaceous backswimmers (Heteroptera: Notonectidae), and certain species of fish, including Gambusia affinis. For my thesis I focused on mosquitoes of the genus Culex, and how they responded solely to the presence of kairomones (chemicals emitted by an organism and detected by an individual of another species; where only the receiver benefits from the cue) released by Gambusia affinis (Western mosquitofish), Lepomis cyanellus (green sunfish), and Procambarus hayi (straightedge crayfish) when locating oviposition sites. Three paired experiments (Control vs. Predator-conditioned water) were conducted, one for each predator species. A fourth experiment was conducted to determine where Culex would oviposit in the presence of positive, negative, and neutral stimuli. Oviposition choice was quantified by collecting all egg rafts laid in experimental pools. Egg rafts were hatched, raised, and identified to species. In experiment one, Culex restuans used kairomones to detect and avoid ovipositing in the presence of G. affinis. In experiment two, L. cyanellus kairomones did not deter Culex species. In experiment three, mosquitoes were attracted to pools with crayfish-conditioned water over Controls. In experiment four, presence of G. affinis within a pair reduced the number of egg rafts found in Control and Crayfish pools. When not paired with G. affinis, Control and Crayfish pools received significantly more egg rafts than G. affinis pools. Overall, kairomones alone can drive oviposition site choice in Culex restuans, and Culex perceive quality habitats as low quality when in close proximity to G. affinis pools.
Download or read book Beetles of Eastern North America written by Arthur V. Evans and published by Princeton University Press. This book was released on 2014-06-08 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive full-color guide to the beetles of eastern North America Beetles of Eastern North America is a landmark book—the most comprehensive full-color guide to the remarkably diverse and beautiful beetles of the United States and Canada east of the Mississippi River. It is the first color-illustrated guide to cover 1,406 species in all 115 families that occur in the region—and the first new in-depth guide to the region in more than forty years. Lavishly illustrated with over 1,500 stunning color images by some of the best insect photographers in North America, the book features an engaging and authoritative text by noted beetle expert Arthur Evans. Extensive introductory sections provide essential information on beetle anatomy, reproduction, development, natural history, behavior, and conservation. Also included are tips on where and when to find beetles; how to photograph, collect, and rear beetles; and how to contribute to research. Each family and species account presents concise and easy-to-understand information on identification, natural history, collecting, and geographic range. Organized by family, the book also includes an illustrated key to the most common beetle families, with 31 drawings that aid identification, and features current information on distribution, biology, and taxonomy not found in other guides. An unmatched guide to the rich variety of eastern North American beetles, this is an essential book for amateur naturalists, nature photographers, insect enthusiasts, students, and professional entomologists and other biologists. Provides the only comprehensive, authoritative, and accessible full-color treatment of the region's beetles Covers 1,406 species in all 115 families east of the Mississippi River Features more than 1,500 stunning color images from top photographers Presents concise information on identification, natural history, collecting, and geographic range for each species and family Includes an illustrated key to the most common beetle families
Download or read book Chemical Ecology in Aquatic Systems written by Christer Brönmark and published by . This book was released on 2012-03 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: However, our knowledge of this "chemical network" is still negligible.
Download or read book A Handbook of Global Freshwater Invasive Species written by Robert A. Francis and published by Routledge. This book was released on 2012-03-12 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Treatment Wetlands for Water Quality Improvement written by John H. Pries and published by CH2M Hill Canada. This book was released on 2002-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersal of Living Organisms Into Aquatic Ecosystems written by Aaron Rosenfield and published by Schiffer Publishing. This book was released on 1992 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1966 Congress passed the National Sea Grant College Program Act to promote marine research, education, and extension services in institutions along the nation's ocean and Great Lakes coasts. In Maryland a Sea Grant Program -- a partnership among federal and state governments, universities, and industries -- began in 1977, and in 1982 the University of Maryland was named the nation's seventeenth Sea Grant College. The Maryland Sea Grant College focuses its efforts on the Chesapeake Bay, with emphasis on the marine concerns of fisheries, seafood technology, and environmental quality. The introduction and transferring of organisms from one ecosystem to another has a history that is as old as human migration. Some translocations have had commercial and ecological benefits; many others have been problematical, if not detrimental, to the environment. This book examines a number of case studies of translocating aquatic plants and animal species, in the context of issues that entrepreneurs, resource managers, and scientists must take into account.
