Download or read book A Key to the British Fresh and Brackish water Gastropods written by Thomas Townley Macan and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Key to the British Freshwater Leeches written by John Malcolm Elliott and published by Hyperion Books. This book was released on 1979 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Key to the British and European Freshwater Bryozoans written by S. P. Mundy and published by Hyperion Books. This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Key to the British Species of Freshwater Triclads Turbellaria Paludicola written by Thomas Braban Reynoldson and published by Hyperion Books. This book was released on 1978 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Changing Wildlife of Great Britain and Ireland written by David L. Hawksworth and published by CRC Press. This book was released on 2003-06-26 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic comprehensive overviews of the status of the diverse organisms that make up wildlife are essential to determining trends, threats and future prospects. Just over 25 years ago, leading authorities on different kinds of wildlife came together to prepare an assessment of their status of a wide range of organisms in Great Britain and Ireland in The Changing Flora and Fauna of Britain, also edited by Professor David L. Hawksworth CBE. Now, in The Changing Wildlife of Great Britain and Ireland, he has gathered together some of the original and also new contributors to review changes since that time and look to the future. Contributions range from viruses, diatoms, fungi, lichens, mites and nematodes; through butterflies, dragonflies, flies and slugs; to flowering plants, ferns, mammals, birds and fish. The state of knowledge in different groups is assessed, and the effectiveness of statutory and other measures taken to safeguard wildlife considered. The picture is far from bleak, ameliorating sulphur dioxide levels have benefited sensitive lichens and mosses in a dramatic way, water quality improvement has been beneficial, there have been few certain extinctions and rediscoveries of species thought to have been lost. Biodiversity Action Plans have also benefited targeted species, but habitat restoration and management for some is not always good for others. But there are worrying trends in declining populations, with an increasing number being regarded as threatened or endangered, especially in agricultural areas, and where woodland management has changed, particular threats from introduced species, and concern over the effects of climate change. Some of the smaller organisms remain poorly known, a situation unlikely to change as expertise in many is scant or being lost. This stock-check and look to the future will be a key source book to conservationists, naturalists, and professional biologists for many years to come.
Download or read book A Key to the British Fresh and Brackish Water Gastropods written by T. T. Macan and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keys for the Identification of Land Snails in the British Isles written by Robert Andrew Duncan Cameron and published by . This book was released on 2003 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailing all of the species of land snails to be found in the British Isles, this guide covers topics such as identification, collection and preservation, as well as detailing the internal characters and reproductive systems of the gastropods.
Download or read book A Key to the Nymphs of the British Species of Ephemeroptera with Notes on Their Ecology written by Thomas Townley Macan and published by . This book was released on 1970 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Key to the Case bearing Caddis Larvae of Britain and Ireland written by I. D. Wallace and published by . This book was released on 1990 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Huntsman s Quarry Kemerton written by Robin Jackson and published by Oxbow Books. This book was released on 2015-12-31 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Archaeological investigations at Huntsman’s Quarry, Kemerton, south Worcestershire during 1995-6 recorded significant Late Bronze Age occupation areas and field systems spreading across more than 8 hectares. Limited evidence for Upper Palaeolithic, Mesolithic, Neolithic and Beaker activity was also recovered together with an Early Bronze Age ring-ditch. Waterholes and associated round-houses, structures and pits were set within landscape of fields and droveways radiocarbon dated to the 12th–11th centuries cal BC. Elements of this field system probably predated the settlement. Substantial artifactual and ecofactual assemblages were recovered from the upper fills of the waterholes and larger pits . The settlement had a predominantly pastoral economy supported by some textile and bronze production. Ceramics included a notable proportion of non-local fabrics demonstrating that the local population enjoyed a wide range of regional contacts. Wider ranging, national exchange networks were also indicated by the presence of shale objects as well as the supply of bronze for metalworking, perhaps indicative of a site of some social status. Together the evidence indicates a small settlement within which occupation of individual areas was short-lived with the focus of the settlement shifting on a regular basis. It is proposed that this occurred on a generational basis, with each generation setting up a new ‘homestead’ with an associated waterhole. The settlement can be compared favorably to those known along the Thames Valley but until now not recognized in this part of the country. Cropmark evidence and limited other investigations indicate that the fields and droveways recorded represent a small fragment of a widespread system of boundaries established across the gravel terraces lying between Bredon Hill and the Carrant Brook. This managed and organized landscape appears to have been established for the maintenance of an economy primarily based on relatively intensive livestock farming; the trackways facilitating seasonal movement of stock between meadows alongside the Carrant Brook, the adjacent terraces and the higher land on Bredon Hill.
Download or read book A Student s Guide to the Seashore written by J. D. Fish and published by Cambridge University Press. This book was released on 2011-01-13 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique, concise and beautifully-illustrated guide allows students to identify over 650 of the common, widespread animals and seaweeds of the shore. User-friendly dichotomous keys are supported by details of diagnostic features and biology of each species. Now enhanced with 32 pages of colour, this much acclaimed guide is invaluable to students of marine biology at any level. Questions such as how does the species reproduce? What is its life-cycle? How does it feed? are answered in the notes accompanying each species to give a fascinating insight into the diversity and complexity of life on the shore. The text is supported by an extensive glossary of scientific terms and a comprehensive bibliography is included to aid further study. The third edition builds on the excellent reviews of earlier editions and will continue to appeal to a wide readership, including students, teachers and naturalists.
Download or read book A Guide to Snails of Britain and Europe written by Václav Pfleger and published by . This book was released on 1988 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molluscs Prosobranch and pyramidellid gastropods written by Alastair Graham and published by BRILL. This book was released on 2023-11-27 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molluscs Prosobranchs and Pyramidellid Gastropods written by Alastair Graham and published by Brill Archive. This book was released on 1988 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rev. ed. of: British prosobranch and other operculate gastropod molluscs. 1971.
Download or read book A Key to the Caseless Caddis Larvae of the British Isles written by John M. Edington and published by . This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Environmental Protection Agency Library System Book Catalog Holdings as of July 1973 written by United States. Environmental Protection Agency. Library Systems Branch and published by . This book was released on 1974 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lymnaeidae written by Maxim V. Vinarski and published by Springer Nature. This book was released on 2023-11-29 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lymnaeidae (also known as ‘pond snails’) are a species-rich and globally distributed family of freshwater snails, many species of which are known to be hosts of parasitic trematodes (such as the liver fluke, Fasciola hepatica). Written by world-leading experts in the field, this book covers a wealth of topics ranging from the phylogeny and taxonomy of lymnaeid snails to their relationships with helminths and their impact on public and veterinary health. It provides an overview of the species richness, evolution, ecology, biogeography and fossil record of the family. A considerable number of chapters are devoted to the economic and medical importance of lymnaeids, their involvement in the transmission of fascioliasis and other zoonotic diseases. Special chapters deal with the molecular and morphological identification of the Lymnaeidae, their rearing in the laboratory and experimental approaches to their study. This contributed volume is aimed at experts and practitioners in various disciplines: Invertebrate zoology, evolutionary biology, biogeography, aquatic ecology, parasitology, epidemiology and public health. It is also useful for university lecturers, undergraduate and postgraduate students.
