Australia, Papua New Guinea, and eastern Indonesia together share all the monotremes (egg-laying mammals) of the world and all the marsupials (pouched mammals) except those of the Americas. There is an urgent need for concerted action to conserve the marsupials and monotremes of the Australasian region. Australia has the worst extinction rate for the mammals of any continent or country and Papua New Guinea and eastern Indonesia are undergoing rapid development which, if not properly planned and controlled, could threaten the habitat of many marsupials, as well as other species.This Action Plan provides an overall perspective of the problems that confront conservation agencies and NGOs in the region and recommends actions required before the year 2000.

This book focuses on the evolution, biogeography, systematics, taxonomy, and ecology of New World and Australasian marsupials, greatly expanding the current knowledge base. There are roughly 140 species of New World marsupials, of which the opossum is the best known. Thanks to recent research, there is now an increasing amount of understanding about their evolution, biogeography, systematics, ecology, and conservation in the Americas, especially in South America. There are also some 270 marsupial species in the Australasian region, many of which have been subject to research only in recent years. Based on this information and the authors’ extensive research, this book provides comprehensive insights into the world's marsupials. It will appeal to academics and specialized researchers, students of zoology, paleontology, evolutionary biology, ecology, physiology and conservation as well as interested non-experts.

Marsupials and monotremes are the dominant mammalian fauna in Australia, Papua New Guinea (PNG) and parts of South America. Monotremes are unique; they possess a range of reptilian and mammalian characteristics. Marsupials are highly diverse and occupy a wide range of ecologically diverse niches and habitats. They have distinct physiologies and their ability to control foetal development and nurture extremely immature young is providing beneficial insights into developmental physiology and human medicine. Insights into marsupial herbivory are benefitting agriculture and climate science. Studies on these mammals that have or will benefit mankind in medicine, agriculture and environmental science have been highlighted. This book covers current knowledge of all aspects of the basic biology and ecology of marsupials and monotremes including evolution and biogeography, genomics, musculoskeletal anatomy, thermal regulation, reproduction, nutrition and feeding strategies, behaviour and social interactions, health and disease, current conservation status, exploitation and utilisation and finally addresses this question: "Are monotremes and marsupials inferior?" The principal audience for this book will be undergraduate students at the tertiary level. Within these chapters, standalone text boxes have been incorporated with examples of the most up-to-date research undertaken to make the book a resource to research students and scientists. Many text boxes highlight the enigmatic nature of marsupials and monotremes and where knowledge of their biology could be of value to the wider community (medicine, agriculture and environment). This compilation emphasises the utility of the information being generated from research with these mammals to the wider scientific community.

"The extraordinary story of these fascinating animals, A Fragile Balance, provides up-to-date information on marsupials without losing sight of the unique set of circumstances that led them to diversify Down Under. Covering all marsupial species in Australia, the book uses an evolutionary and natural history framework to interpret their biological traits. The general chapters on biology, evolution, natural history, cultural history and conservation are bounded by feature treatments of six species of note. A Fragile Balance is the first book to emphasize interactions among marsupials, and between marsupials and their environment, as well as between humans and marsupials. The text is completed by accounts of all known species, each including a basic biological and ecological description, a range map and a measure of conservation status."--BOOK JACKET.

Provides an extraordinary glimpse into the serective lives of these unusual marsupials.

Neurobiology of Monotremes brings together current information on the development, structure, function and behavioural ecology of the monotremes. The monotremes are an unusual and evolutionarily important group of mammals showing striking behavioural and physiological adaptations to their niches. They are the only mammals exhibiting electroreception (in the trigeminal sensory pathways) and the echidna shows distinctive olfactory specialisations. The authors aim to close the current gap in knowledge between the genes and developmental biology of monotremes on the one hand, and the adult structure, function and ecology of monotremes on the other. They explore how the sequence 'embryonic structure › adult structure › behaviour' is achieved in monotremes and how this differs from other mammals. The work also combines a detailed review of the neurobiology of monotremes with photographic and diagrammatic atlases of the sectioned adult brains and peripheral nervous system of the short-beaked echidna and platypus. Pairing of a detailed review of the field with the first published brain atlases of two of the three living monotremes will allow the reader to immediately relate key points in the text to features in the atlases and will extend a universal system of brain nomenclature developed in eutherian brain atlases by G Paxinos and colleagues to monotremes.