A Guide to Freshwater Mollusks of the Laurentian Great Lakes, with Special Emphasis on the Genus Pisidium
Author: Gerry L. Mackie
Publisher:
Published: 1980
Total Pages: 156
ISBN-13:
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A Guide to Freshwater Mollusks of the Laurentian Great Lakes, with Special Emphasis on the Genus Pisidium
Author: Gerry L. Mackie
Publisher:
Published: 1980
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKInvasive Species in Forests and Rangelands of the United States
Author: Therese M. Poland
Publisher: Springer Nature
Published: 2021-02-01
Total Pages: 455
ISBN-13: 3030453677
DOWNLOAD EBOOKThis open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.
Sustaining the World's Wetlands
Author: Richard Smardon
Publisher: Springer Science & Business Media
Published: 2009-06-13
Total Pages: 340
ISBN-13: 0387494294
DOWNLOAD EBOOKWetlands throughout the world, including those described in this book are among the most sensitive and vulnerable ecosystems. They are critical habitats to the world’s migratory birds and a broad range of endangered mammal, reptile, amphibian, and plant species. They provide a broad range of flood storage, pollution control, water supply, ecotourism functions to indigenous peoples and country populations as a whole. They are also at the center of severe land and water use conflicts. These are conflicts between counties where wetland resources or the water supplies required for such resources involve more than one country. These are conflicts in use such as conflicts between habitat protection and charcoal production in mangroves. These are conflicts between groups of peoples such as indigenous peoples and hydropower advocates. Many wetlands have already been destroyed by water extractions, dams, levees, channelization, and fills. Others have been degraded by water pollution, overfishing and overhunting, timber harvest, and a host of other activities. This book describes these conflicts and international policies and institutions developed to protect and manage wetland resources. Most of the broader literature and other books on wetlands focuses on wildlife. Wildlife is described in the case studies, which follow. But, Richard Smardon provides us with more. He traces the history of conflicts and the development of policies and insti- tions to protect and manage wetland resources.
The Naturalist in Nicaragua
Author: Thomas Belt
Publisher: University of Chicago Press
Published: 1985-10-15
Total Pages: 456
ISBN-13: 0226042200
DOWNLOAD EBOOK"The best of all natural history journals which have ever been published."—Charles Darwin, 1874. Beautifully illustrated and a pleasure to read, this classic book describes the geography, geology, ecology, flora, fauna, and native inhabitants of Nicaragua in the nineteenth century. Many of Belt's detailed and accurate observations were not confirmed until decades later—for example, the fact that certain plants have "standing armies" of ants that defend them.
Invasion Biology
Author: Jonathan M Jeschke
Publisher: CABI
Published: 2018-04-25
Total Pages: 189
ISBN-13: 1780647646
DOWNLOAD EBOOKThere are many hypotheses describing the interactions involved in biological invasions, but it is largely unknown whether they are backed up by empirical evidence. This book fills that gap by developing a tool for assessing research hypotheses and applying it to twelve invasion hypotheses, using the hierarchy-of-hypotheses (HoH) approach, and mapping the connections between theory and evidence. In Part 1, an overview chapter of invasion biology is followed by an introduction to the HoH approach and short chapters by science theorists and philosophers who comment on the approach. Part 2 outlines the invasion hypotheses and their interrelationships. These include biotic resistance and island susceptibility hypotheses, disturbance hypothesis, invasional meltdown hypothesis, enemy release hypothesis, evolution of increased competitive ability and shifting defence hypotheses, tens rule, phenotypic plasticity hypothesis, Darwin's naturalization and limiting similarity hypotheses and the propagule pressure hypothesis. Part 3 provides a synthesis and suggests future directions for invasion research.
Revealed Biodiversity: An Economic History Of The Human Impact
Author: Eric L Jones
Publisher: World Scientific
Published: 2013-11-29
Total Pages: 292
ISBN-13: 9814522589
DOWNLOAD EBOOKRevealed Biodiversity: An Economic History of the Human Impact aims to show that for several centuries environmental conditions have been substantially the product of economic fluctuations. It contests the notion of perpetual decline in species composition. The arguments are supported by far more precise historical detail than is usual in books about ecology. The need to take the gains to human society into account when assessing environmental change is strongly emphasized. The book features case studies including England, the Netherlands, USA, East Asia, Brazil, and the areas of modern agricultural ‘land grab’.This book is important for its close attention to the documented historical record of environmental change in several countries over several centuries; for its demonstration of how much wildlife populations have been influenced by fluctuations in market activity; for revealing the need to be sensitive to historical baselines; and for emphasizing the imperative of taking the gains to human society into account when assessing environmental change. It, therefore, has considerable significance for environmental and conservation policies as well as for future studies in ecological history.
The Entolomataceae of Tasmania
Author: machiel noordeloos
Publisher: Springer Science & Business Media
Published: 2012-08-27
Total Pages: 409
ISBN-13: 9400746792
DOWNLOAD EBOOKThis book is the result of 14 years of collecting Entolomataceae in the native forests of Tasmania, Australia. Although initially involving only the Tasmanian residents Genevieve Gates and David Ratkowsky, who made twice- or thrice-weekly forays into the forests throughout the year, the project was subsequently joined by agaric specialist Machiel Noordeloos from the Netherlands, and by fungi photographer Michael Pilkington from the United Kingdom. The international character of the project is further evidenced by the earlier contributions of American mycologist Tim Baroni to the Tasmanian Rhodocybe species which form the basis of the chapter on the now-expanded concept of Clitopilus, and a visit of several months in 2010 by Brazilian Ph.D. candidate Fernanda Karstedt, who tested the keys to the Entoloma species. Consequently, several thousand well-annotated collections were found during this inventory and form the basis of this monographic treatment of the Entoloma and Clitopilus of Tasmania. The resulting 90 Entoloma species and 10 Clitopilus species are well documented with standardized descriptions, line drawings of fruit bodies and diagnostic microscopic characters, and, when available, with colour photographs. Thanks to the intensive search, it was possible to illustrate most species in colour. Dichotomous keys facilitate identification of the species. The species concept used is morphologically based; in several cases, however, identification to species level is supported by molecular data.
Hansenula Polymorpha
Author: Gerd Gellissen
Publisher: Wiley-Blackwell
Published: 2002-06-10
Total Pages: 378
ISBN-13:
DOWNLOAD EBOOKMethylotrophic yeasts have attracted increasing interest as useful systems for fundamental research and applied purposes. Hansenula polymorpha in particular has become a preferred organism for the production of recombinant proteins on an industrial scale. Product examples range from therapeutics such as hepatitis B vaccines to industrial enzymes like the feed additive phytase. This book is addressed to researchers and scientists working in the field and provides a comprehensive, up-to-date overview of the present status of Hansenula polymorpha research, applications and methods. Aspects of the organism ranging from systematics, genetics, methanol metabolism and peroxisomal function to its use as a technology platform for the production of recombinant proteins are covered. A detailed chapter on laboratory methods is also included.
The Circle of Knowledge: A Classified, Simplified, Visualized Book of Answers
Author: Various
Publisher: DigiCat
Published: 2022-06-02
Total Pages: 2130
ISBN-13:
DOWNLOAD EBOOKThe Circle of Knowledge is an informative book that was designed in 1917, to be both inspiring and entertaining. The book represents the modern, progressive spirit which fits that time, in its forms of expression and its editorship. The purpose of this work is to answer the why, who, what, when, where, how of the wide majority of curious minds, both young and adult, and encourage them to raise further questions. Special measures were taken in creating this work to isolate essentials from non-essentials; to differentiate human interest subjects of universal significance from those of little concern; to deliver living truths instead of dead vocabulary; and finally, to bring the whole within the knowledge of the intermediate reader, without regard to age, in an acceptable and exciting form. The use of visual outlines and tables; maps, drawings, and diagrams; the illustrated works of great painters, sculptors, and architects all are used to give the reader the valuable and cultural knowledge of past and present.
