FRESHWATER SNAILS OF AFRICA AND THEIR MEDICAL IMPORTANCE

Download Freshwater Snails Of Africa And Their Medical Importance ebook PDF or Read Online books in PDF, EPUB, and Mobi Format. Click Download or Read Online button to FRESHWATER SNAILS OF AFRICA AND THEIR MEDICAL IMPORTANCE book pdf for free now.

Freshwater Snails Of Africa And Their Medical Importance

Author : David S Brown
ISBN : 9781482295184
Genre : Science
File Size : 28.65 MB
Format : PDF, ePub, Mobi
Download : 798
Read : 875

The first half of this book is primarily a systematic survey of the snails, beginning with glossaries, keys for identification to genera and a checklist of species. This is followed by a synopsis of species, with brief notes on ecology, distribution and parasites. Relationships are then described between snails and schistosomes and with other parasites. The book goes on to consider the factors affecting snail populations and possible methods for population control.
Category: Science

The Nile

Author : Henri J. Dumont
ISBN : 9781402097263
Genre : Science
File Size : 54.31 MB
Format : PDF, ePub, Docs
Download : 635
Read : 1018

What have we learnt about the Nile since the mid-1970s, the moment when Julian Rzóska decided that the time had come to publish a comprehensive volume about the biology, and the geological and cultural history of that great river? And what changes have meanwhile occurred in the basin? The human popu- tion has more than doubled, especially in Egypt, but also in East Africa. Locally, industrial development has taken place, and the Aswan High Dam was clearly not the last major infrastructure work that was carried out. More dams have been built, and some water diversions, like the Toshka lakes, have created new expanses of water in the middle of the Sahara desert. What are the effects of all this on the ec- ogy and economy of the Basin? That is what the present book sets out to explore, 33 years after the publi- tion of “The Nile: Biology of an Ancient River”. Thirty-seven authors have taken up the challenge, and have written the “new” book. They come from 13 different countries, and 15 among them represent the largest Nilotic states (Egypt, Sudan, Ethiopia, Uganda, and Kenya). Julian Rzóska died in 1984, and most of the - authors of his book have now either disappeared or retired from research. Only Jack Talling and Samir Ghabbour were still available to participate again.
Category: Science

The Mollusks

Author : Charles F. Sturm
ISBN : 9781581129304
Genre : Science
File Size : 56.2 MB
Format : PDF, Kindle
Download : 248
Read : 1263

Mollusks have been important to humans since our earliest days. Initially, when humans were primarily interested in what they could eat or use, mollusks were important as food, ornaments, and materials for tools. Over the centuries, as human knowledge branched out and individuals started to study the world around them, mollusks were important subjects for learning how things worked. In this volume, the editors and contributors have brought together a broad range of topics within the field of malacology. It is our expectation that these topics will be of interest and use to amateur and professional malacologists.
Category: Science

A Handbook Of Global Freshwater Invasive Species

Author : Robert A. Francis
ISBN : 9781136461255
Genre : Science
File Size : 57.21 MB
Format : PDF, ePub
Download : 996
Read : 1234

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.
Category: Science

Biologie Der S Sswasserinsekten

Author : Carl Wesenberg-Lund
ISBN : 9783662383278
Genre : Science
File Size : 73.23 MB
Format : PDF, Docs
Download : 587
Read : 994

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.
Category: Science

Tropical Diseases An Issue Of Infectious Disease Clinics E Book

Author : Alimuddin Zumla
ISBN : 9781455744107
Genre : Medical
File Size : 41.96 MB
Format : PDF
Download : 911
Read : 547

Tropical diseases pose an increasing problem for US and international travellers who travel to tropical regions. Physicians need to be aware of the wide spectrum of tropical, infectious, and parasitic diseases that patients may be exposed to. This issue of Infectious Disease Clinics includes articles written by global experts and includes topics such as range/classification of tropical diseases, venomous bites and stings, malaria, and bacterial gastrointestinal infections.
Category: Medical