Biogeography and Ecology in Tasmania


Book Description

Distribution and Range . . . 142 The Tasmanian Trout Fishery 153 Population Dynamics of Tench 163 Conservation Notes 167 Bibliography . . . . . . . . 168 VII. Littoral Biogeography by A. J. DARTNALL 171 Introduction . . . . . . . . . . . . . . 171 The Maugean Marine Province. . . . . . 175 Distribution Patterns of some Tasmanian Marine Animals 178 Conclusions. . . . 190 Acknowledgements 191 Bibliography . . . 191 VIII. The Zoogeography and Evolution of Tasmanian Oligochaeta by B. G. M. JAMIESON. . 195 Introduction . . . . . . . . . . . . 195 The Australian Region: A World Perspective 198 Earthworms and Continental Drift. . . . . 206 Tasmanian Earthworms - Relationships with the Australian Fauna. . . . . . . . . . . . . . . . . . . . . . . 210 Tasmanian Megasco1ecid Species and Aspects of their Evolution . 218 Bibliography . . . . . . . . . . . 226 IX. Oniscoidea (Terrestrial Isopoda) by ALISON J. A. GREEN . . . . . . . 229 Introduction . . . . . . . . . . . 229 Ecological Distribution. . . . . . . 229 Comments on Ecological Distribution 235 Geographical Distribution of Species Recorded from T- mania. . . . . . . . . . . . . . . . . . . . . . . 237 Geographical Distribution of Genera Recorded from T- mama. . . . . . 239 Acknowledgements 247 Bibliography . . . 247 X. The Amphibia of Tasmania by M. J. LITTLEJOHN and A. A. MARTIN 251 Introduction 251 Taxonomy. 251 Distribution 265 Biology . . 268 Zoogeography . . 272 Evolution . . . . 277 Acknowledgements 282 Bibliography . . . 282 Key 1: Key to Frogs (Adults) . 286 Key 2: Key to Male Mating Calls . 287 Key 3: Key to Eggs. . 288 Key 4: Key to Tadpoles . . . . . 289 XI. Biogeography and Ecology of the Reptiles of Tasmania and the Bass Strait Area by P. A. RAWLINSON. 291 Introduction . . . . . . . . . . . . . . . 291 Cainozoic Climates and Pleistocene Sea Levels. 292 Present Climate. . . . . . . . . . . . . . 297 Ecological Requirements of Reptiles. . . . . 299 The Reptile Fauna of Tasmania and the Bass Strait Area - Composition, Ecology and Distribution. . . .




Evolution of Desert Biota


Book Description

Written by specialists in the field, the papers in this volume explore evolution of animals and plants on the deserts of North America, South America, and Australia. Together, the articles constitute a complete survey of the geological history of the deserts of three continents, the evolution of the animals and plants of those deserts, and their adaptations to the environments in which they live. The first paper, by Otto T. Solbrig, discusses the flora of the South American temperate and semidesert regions, citing numerous genera and reasons that they are found in the different areas. John S. Beard uses the same approach in his discussion of the evolution of Australian desert plants and focuses on western Australian areas. Guillermo Sarmiento appraises the evolution of arid vegetation in tropical America, including the Lesser Antilles and the Coast Range of Venezuela and Colombia. A. R. Main surveys the adaptation of Australian vertebrates to desert conditions and gives examples of how various species of birds, reptiles, and amphibians adapt to their environment in order for the greatest number to survive. James A. MacMahon designates specific communities in the Mojave, Sonoran, and Chihuahuan deserts and discusses the similarity of species of the North American desert mammal faunas found there, while Bobbi S. Low focuses on the evolution of amphibian life histories in the desert and compiles a lengthy table of amphibia comparing egg size, habitat, number of eggs per clutch, and so forth. Finally, W. Frank Blair treats adaptation of anurans to equivalent desert scrub of North and South America and cites various species of frogs and toads that are found in similar areas. The volume also includes an introduction by the editor and an index. Evolution of Desert Biota is the result of a symposium held during the First International Congress of Systematic and Evolutionary Biology in Boulder, Colorado; in August 1973.




Fencing for Conservation


Book Description

The conflict between increasing human population and biodiversity conservation is one of the IUCN’s key threatening processes. Conservation planning has received a great deal of coverage and research as a way of conserving biodiversity yet, while theoretically successful, it has never been tested. Simple lines on maps to illustrate conservation areas are unlikely to be successful in the light of human encroachment. It may be that some form of overt display is necessary to ensure the protection of reserves. This may be signage, presence of guards/rangers or physical fencing structures. The need for some form of barrier goes beyond restricting human access. The megafauna of Africa pose a genuine threat to human survival. In southern Africa, fences keep animals in and protect the abutting human population. Elsewhere, fencing is not considered important or viable. Where poverty is rife, it won’t take much to tip the balance from beneficial conservation areas to troublesome repositories of crop-raiders, diseases and killers. Conversely, in New Zealand fences are used to keep animals out. Introduced species have decimated New Zealand’s endemic birds, reptiles and invertebrates, and several sites have been entirely encapsulated in mouse-proof fencing to ensure their protection. Australia faces the same problems as New Zealand, however surrounds its national parks with cattle fences. Foxes and cats are free to enter and leave at will, resulting in rapid recolonisation following poisoning campaigns. How long will these poison campaigns work before tolerance, aversion or resistance evolves in the introduced predator populations?




Before Environmental Law


Book Description

This landmark book unveils the history of defending Australia's natural environment and examines the subject's legal and political contexts from the birth of the nation in 1901 until the advent of the so-called modern era of environmental regulation in the late 1960s. It rejects the mythology that Australia lacked environmental law before the late 1960s in revealing how many of today's environmental laws, from pollution control to nature conservation, emerged from precedents or events much earlier in the 20th century. This history however reveals a discrepancy between lawmakers' greater efficacy to exploit rather than protect the environment, a discrepancy that grew as nature's backlash intensified in a rapidly degrading continent colonised to build the Australian nation. In exploring these dynamics, the book offers a rich tapestry of case studies illustrated with historic photographs that show the origins of Australia's environmental laws and how they borrowed from international precedents or furnished lessons for other nations. Through its multi-disciplinary enquiry, the book offers scholars and students of environmental law, legal history and the environmental humanities a unique story about the failures and successes in the making of environmental law.




Human Impact on the Natural Environment


Book Description

A brand new edition of the definitive textbook on humankind’s impact on the Earth’s environment—now in full color This classic text explores the multitude of impacts that humans have had over time upon vegetation, animals, soils, water, landforms, and the atmosphere. It considers the ways in which climate changes and modifications in land cover may change the environment in coming decades. Thoroughly revised to cover the remarkable transformation in interest that humans are having in the environment, this book examines previously uncovered topics, such as rewilding, ecosystem services, techniques for study, novel and no analogue ecosystems, and more. It also presents the latest views on big themes such as human origins, the anthropocene, domestication, extinctions, and ecological invasions. Extensively re-written, Human Impact on the Natural Environment, Eighth Edition contains many new and updated statistical tables, figures, and references. It offers enlightening chapters that look at the past and present state of the world—examining our impact on the land itself and the creatures that inhabit it; the oceans, lakes, rivers and streams; and the climate and atmosphere. The book also takes a deep look at our future impact on the planet and its resources—our affect on the coastal environments, the cryosphere and the drylands, as well as the hydrological and geomorphological impacts. Fully updated to take account of recent advances in our understanding of global warming and other phenomena Offers current opinions on such topics as human origins, the anthropocene, domestication, extinctions, and ecological invasions Features a full-color presentation to allow for more and clearer photographs and diagrams Contains more international case studies than previous editions to balance UK examples Human Impact on the Natural Environment is essential reading for undergraduates in geography and environmental science, and for those who want a thorough, wide-ranging and balanced overview of the impacts of humans upon natural processes and systems from the Stone Age to the Anthropocene and who wish to understand the major environmental issues that concern the human race at the present time.




Avian Biology


Book Description

Avian Biology is a collection of papers that deals with biological aspects of birds such as their classification and habitat behavior. One paper reviews how birds are classified through practical systematics, study of fossils, and some of the problems encountered in the arrangement of major groups. Another paper discusses the origin and evolution of birds from their reptilian predecessors to their current evolutionary rates. Evolutionary rates vary depending on access to new habitats; if the environment is static, evolutionary rates can also slow down. One author discusses the inter-relations of sea birds with their marine environment, including coastal areas and the biological properties of the surface water. Another author describes the biology of desert birds relating to nomadism behavior and physical adaptations especially to the arid environment. The author also describes the cooling mechanism of these desert birds. Another paper evaluates the ecological aspect of behavior that includes foraging, habitat selection, mating, and flocking cohesion. Avian biologists, zoologists, and readers who have a general interest in birds will find this book useful.




Australian Rainforests


Book Description

A critical evaluation of the ecological hypotheses proposed to explain the distribution of Australian rainforests.




Arid Land Ecosystems: Volume 2, Structure, Functioning and Management


Book Description

This volume was first published in 1981. The history of man's use of arid lands is a sad record of deterioration of the natural resource base and of low and declining living standards for the 300 million people who live in them. One prerequisite to meeting the challenge of reversing the deterioration and of raising living standards is a sound knowledge of the natural ecosystems.