Download or read book Habitats of Snails and Snails as Habitats written by Charlotte F. Narr and published by . This book was released on 2011 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater gastropods, imperiled globally, have been deemed North America's most vulnerable major animal group. Habitat loss, invasive species, and inadequate information about species distributions all obstruct freshwater gastropod conservation. To assess the distributions and critical habitats for gastropods classified by the Wyoming Game and Fish Department as "Species of Greatest Conservation Need," I qualitatively surveyed freshwater snails in two major river drainages of the North Platte and Bighorn rivers in Wyoming. I sampled freshwater snails from 110 sites in 24 subdrainages from June through August 2009 and gathered information about distributions and habitat associations. I found members of 5 freshwater gastropod families and 11 genera distributed in our survey. Recent macroinvertebrate sampling efforts suggested that aquatic snails were sparsely distributed within my target drainages. The presence of freshwater snails at most sites sampled for my survey indicates that these previous methods used to sample macroinvertebrates were not effective indicators of the presence of freshwater snails. Although invasive New Zealand mudsnails have been reported in the survey area, I did not find these snails. Contrary to expectations, I found no statistical evidence for habitat differentiation by gastropod Family. I also investigated how the elemental composition and fitness of a snail and its trematode parasite vary in response to diets contrasting in quality and quantity. Phosphorus and nitrogen often limit the secondary production of herbivores like snails. Consumers use various mechanisms to attain limiting elements from their environment in the precise proportions that their own elemental composition and secondary productivity require. By comparing the % elemental composition (in terms of phosphorus, nitrogen, and carbon) of a trematode parasite to that of its snail host, we were able to assess the quality of a snail as a resource for a trematode. When I experimentally manipulated the diet of parasitized snails, I found that they were able to maintain relatively homeostatic elemental compositions in the face of varying elemental resources and parasitism. In contrast to predictions of ecological stoichiometry, the trematode that I studied benefited (released more of its transmission stage) from diets that created an elemental imbalance between the parasite and host.
Download or read book Snails written by Meg Gaertner and published by ABDO. This book was released on 2018-12-15 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the life cycle, behavior, physical characteristics, and habitat of snails. Vivid photographs and easy-to-read text aid comprehension for early readers. Features include a table of contents, an infographic, fun facts, Making Connections questions, a glossary, and an index. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards. Cody Koala is an imprint of Pop!, a division of ABDO.
Download or read book Virginia Fringed Mountain Snail Recovery Plan written by U.S. Fish and Wildlife Service. Region 5 and published by . This book was released on 1983 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Snails and Slugs of the Pacific Northwest written by Thomas E. Burke and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terrestrial mollusks, the second largest phylum in the animal kingdom, are vitally important to the earth's ecology. With the publication of Land Snails and Slugs of the Pacific Northwest, a definitive and comprehensive guide to snails and slugs of Oregon, Washington, Idaho, and western Montana is finally available. Primarily an identification guide, this richly illustrated volume offers complete information on the range of terrestrial mollusk shapes, sizes, and characteristics. It presents an overview of their habitat requirements as well as details of land snail and slug ecology, collection and preservation methods, and biogeography. Land Snails and Slugs of the Pacific Northwest is an essential reference for biologists, horticulturalists, gardeners, and naturalists, and anyone wishing to identify species in the field. * Identification keys and species accounts for most of the 245 taxa of terrestrial slugs and snails in the region * 280 full-color photographs of 155 species and subspecies * Range maps for most species
Download or read book Altitudinal Distribution and Habitats of Land Snails in New Mexico written by Timothy James Dillon and published by . This book was released on 1992 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Let s Look at Snails written by Laura Hamilton Waxman and published by Lerner Publications. This book was released on 2009-09-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn all about snails, including how they make slime, where they live, and what they eat.
Download or read book Snails on rocky sea shores written by John Crothers and published by Pelagic Publishing. This book was released on 2012-01-01 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The snails found living on rocky sea shores are among the most rewarding invertebrate animals to study. Species such as dog-whelks, topshells and winkles are easy to find, capture, identify, measure and mark. This book provides a key to common species, background ecology, an overview of rocky shore habitats and the techniques required for anyone to study this fascinating and accessible fauna.
Download or read book Sea Snails written by Joseph Heller and published by Springer. This book was released on 2015-06-16 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated book presents the diversity and natural history of sea snail groups. By integrating aspects of morphology, ecology, evolution and behaviour, it describes how each group copes with problems of defence, locomotion, nutrition, reproduction and embryonic development. First come general characteristics of the Mollusca, to which snails belong; and next, characteristics by which snails (Gastropoda) differ from other molluscs. Then a broad, panoramic view of all major sea snail groups, from the primitive to the more advanced, is presented, including both the more abundant and some remote ones of special interest. In detailing primitive sea snails, first limpets (Patellogastropoda) are described, followed by brush snails (Vetigastropoda: top-shells, turbans and allies) and nerites (Neritimorpha), a small group with remarkably high variation in shell colour and in habitats. In looking at advanced-snails (Caenogastropoda), it details the herbivorous grazers and filter-feeders and the many voracious predators, some which use venomous darts. The book also covers sea slugs (Opisthobranchia), which have shifted from mechanical to chemical defence; some are herbivores, some use their food to harness solar energy, others are predators that gain stinging cells and poisonous compounds from their food. In addition, readers will learn about aspects of sea snails in human culture, including use as sacred artefacts and objects of magic and money, as a source of the royal and sacred dyes of purple and blue and as holy ceremonial trumpets. The text, in which scientific terms are accompanied by parallel common ones, is accompanied by over 200 illustrations (mostly in colour). This comprehensive, insightful portrait of sea snails will appeal to marine biologists, zoology lecturers and students, biology teachers, field-school instructors, nature reserve wardens, amateur naturalists, as well as to lecturers and learners of human culture.
Download or read book How to Set Up a Snail Habitat written by Sandra N Lee and published by . This book was released on 2021-08-03 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Garden snails are easy to take care of. These mollusks can live up to 20 years. Knowing how to plan your habitat is important. I go into some of the things you will need in this booklet.. You will be able to find things like substrate, leaves, plants, weeds, and other things you can add to your habitat. Your snails will appreciate the care you put into them and their home.
Download or read book Land Snails of New Mexico written by Artie L. Metcalf and published by New Mexico Museum of Natural History and Science. This book was released on 1997 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North American Freshwater Snails written by John Bayard Burch and published by . This book was released on 1988 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flukes and Snails Revisited written by D. Rollinson and published by Cambridge University Press. This book was released on 2001 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarises the current state of various studies investigating snail-parasite relationships.
Download or read book Gastropods written by Andrea M. Bianchi and published by Nova Science Publishers. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gastropods are a large taxonomic class within the molluscs, a group of animals that are more commonly known as snails and slugs. With more than 30,000 living species world-wide and about 15,000 fossil forms, gastropods have a history as far back as the early Cambrian period. In this book, the authors present current research in the study of the diversity, habitats and genetics of gastropods. Topics discussed include gastropods as paleoenvironmental indicators; diversity in the growth patterns of marine gastropods; the molecular structure of the snail PCTS influencing their habitat; European terrestrial gastropod distribution; and, diversity and gastropodochory studies.
Download or read book Recovery Plan for the Noonday Snail Mesodon Clarki Nantahala written by Amy Shrader Van Devender and published by . This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amazingly Awesome Snails written by K. S. Tankersley and published by CreateSpace. This book was released on 2014-03-16 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever want to know more about those mysterious creatures inside the circular shells? This is a great guide for children who want to know more about those amazingly, awesome snails! This book provides a detailed, scientific look at the physical characteristics of snails, their habitats, method of movement, shell development, mating habits, egg development and lifecycle. Includes dramatic and detailed color photos of the snail in its natural habitat. Great for school research for students in grades 4-8 or just plain kid-inquisitiveness about these slimy but amazing creatures.
Download or read book Managing Priority Habitats for Invertebrates written by Martin J. Willing and published by . This book was released on 2003 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution and Abundance of Terrestrial Snails in Three Habitat Types in Southwestern Alberta microform written by Osvaldo Locasciulli and published by National Library of Canada. This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some species of terrestrial gastropods can host larval stages of lungworms (Protostrongy/us spp.), which have been linked with periodical die-off in herds of bighorn sheep (Ovis canadensis). The distribution and abundance of some terrestrial snails, indicated as suitable intermediate hosts for those lungworms, were analysed in this study. In particular, it was predicted that the horizontal distribution of the snails would be clumped, and that their abundance would decrease proportionally with the depth at which the samples are collected; that the presence of snails in the soil would be positively correlated with the presence of organic matter and not correlated with the understorey vegetation. Between May and August 1980 and 1981, fourteen species of pulmonate snails were recovered by wet-sifting 600 core samples of soil, collected from three habitat types in a bighorn sheep range in the foothills of southwestern Alberta. The three habitat types (Poplar stand, Mixedwood and Spruce forest) contributed considerably different proportions to the total number of gastropods collected (33.7%, 7.6% and 58.7%, respectively), and in most cases the gastropods were highly clumped in their horizontal distribution. There were little temporal differences in the number of snails collected. The presence of snails was positively correlated with the presence of organic litter, and their abundance decreased proportionally with the soil depth. A considerable proportion (ca 42%) of gastropods was recovered from soil samples collected below 5 cm. The vertical distribution of the snails varied temporally, with increasing proportions of gastropods being found in the top 5 cm of soil from May to August. Presence of molluscs was not correlated with understory vegetation, and some species were more abundant than others in the three habitat types. In particular, members of the Pupillidae (the most abundant family in all the three habitat types) were found in different proportions in the three habitat types: Vertigo gou/di was most abundant in the Poplar stand, whereas, V. modesta, and Co/umei/a spp. were recovered mostly from the Spruce forest. Members of two other families (Endodontidae, and Zonitidae) were much less abundant than the Pupillidae, and showed less variation in their proportions in the three habitat types. Precipitation was not correlated with snail distribution, whereas, the increasing mean temperature, from May to August, might have played a role in the increasing proportions of snails in the top layers of the soil.
