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"Freshwater mollusks, invertebrates that protect themselves with a hard shell, fall into two major categories: gastropods--which have a single shell, such as snails--and bivalves--which have a double shell, such as clams and mussels. Mollusks are thought to be the second-largest group of animals behind arthropods, and while they live in almost every conceivable habitat from deep-sea vents to deserts, freshwater mollusks tend to be restricted to particular lake or river systems and are arguably the most endangered freshwater animal in the world. Despite their wide variety, little baseline data exists to help students and professionals understand mollusks' diversity and evolutionary relationships. Filling this gap in the literature could provide biogeographical insights, as mollusks' ancient fossil records go back over 500 million years and their distribution patterns are a reflection of past continental and climate changes. In this comprehensive reference book, world renowned experts tease apart the distributions of every freshwater mollusk family. The book provides basic biological and ecological information for each of the distinct 41 families, including summaries about the systematics and biodiversity of each family. Malacologists, limnologists, ichthyologists, stream ecologists, biogeographers, conservation biologists, and students will find this reference a must-have and one that will inform the study of mollusks for years to come"--
Mollusks --- Geographical distribution --- Geographical distribution.
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Packed with the stunning photography, this photographic guide is the perfect single-volume guide to Britain's moths. Its coverage is broad, including 871 macro-moths and 1276 species of micros. The concise text provides important information on identification, size and larval food plant for each species and, for the first time, maps are included. Introductory sections cover habitats, life cycles, conservation, and trapping and photographic techniques. The new edition is far more comprehensive than the original edition, and the main changes are as follows : Covers 800 additional species. Many of the photographs have been replaced and the total number of images is now over 3200. The photos are presented in a uniform alignment for ease of comparison between species. Size bars are added below each image showing average forewing length. Taxonomy and nomenclature conform to the latest checklist (but old Bradley numbers are still included) Maps included for every species for the first time. Covers all of the British Isles (Great Britain, Ireland and the Isle of Man) plus the Channel Islands. Excludes butterflies and caterpillars to make room for much greater coverage of true moths. With many people now setting up their own backyard moth traps, and many others who are simply curious to know which species are fluttering around their light bulbs, this book provides a superb introduction to this fascinating insect group.
Moths --- Geographical distribution. --- Geographical distribution
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Freshwater invertebrates --- Gastropoda --- Mollusks --- Geographical distribution --- Geographical distribution --- Geographical distribution
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Birds --- Geographical distribution. --- Migration. --- Geographical distribution
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Amphibians --- Reptiles --- Geographical distribution --- Geographical distribution.
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Grain --- Geographical distribution --- Geographical distribution. --- North America.
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Birds --- Geographical distribution --- Geographical distribution. --- Saudi Arabia.
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Fishes --- Eggs --- Geographical distribution. --- Geographical distribution
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This is the first comprehensive synopsis of the biodiversity of Diptera, which with more than 150.000 described species contain more than one tenth of all described animal species. The first part is a review of what is already known, with treatments of all the major biogeographical regions and important archipelagoes; the second part contains case studies on open-ended taxa, Diptera as ecological indicators, and how to estimate the still unknown proportion of our fauna; and the third part discusses the digital and molecular tools needed to document the fauna. The book has an emphasis on principles and analytical approaches as well as on practical ‘how-to’ information and is intended for academicians and other professionals but with a significant outreach to students.
Diptera --- Variation. --- Geographical distribution. --- Geographical distribution --- Variation
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Published in association with the Conchological Society of Great Britain and Ireland, this atlas is the culmination of nearly forty years’ work by its members in almost every corner of the British Isles, resulting in an impressively thorough coverage based on the 10km square. The Introduction includes Early History of Recording; The Mapping Scheme; Factors Influencing Distribution; History of the British Fauna; and the Future. The dot-distribution maps, generated in 1998 by the Biological Records Centre, ITE, Monks Wood, cover all species, whether native or introduced and naturalized, and are accompanied by notes on their habitat, history (including fossil occurrence), British status and overseas distribution, and include a small black-and-white illustration of each species. A select Bibliography; six maps illustrating relevant environmental factors; Localities mentioned in the text with their grid references; List of Recorders; and an Index complete the work.
Mollusks --- Mollusks --- Geographical distribution --- Geographical distribution
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