Download or read book Recent population trends of jackass penguins Spheniscus demersus off Southern Africa written by R.J.M. CRAWFORD and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent population trends of African penguins Spheniscus demersus in Namibia written by J. KEMPER and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ad lie Penguin written by David G. Ainley and published by Columbia University Press. This book was released on 2002 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: When sea-ice declines, so does the population of Adelie penguins, making this species a predictive indicator of the effects of global warming. This book summarizes our present ecological knowledge of this species: its biology, behavior, and ecology within the Antarctic ecosystem; the ecological factors important to its life history; and details of the mechanisms by which it is responding to climate change. The narrative is complemented by richly written texts from the earliest Antarctic naturalists, fine illustrations from the accomplished artist Lucia deLeiris, and photographs by the author.
Download or read book The diet of jackass penguins Spheniscus demersus in Algoa Bay South Africa and its bearing on population declines elsewhere written by R.M. RANDALL and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Limitation in Birds written by Ian Newton and published by Academic Press. This book was released on 1998-04-08 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book meets the demand for a comprehensive introduction to understanding the processes of population limitation. Recognized world-wide as a respected biologist and communicator, Dr. Ian Newton has now written a clear and detailed treatise on local scale population limiting factors in birds. It is based almost entirely on results from field studies, though it is set in a contemporary theoretical framework. The 16 chapters fall under three major section headings: Behavior and Density Regulation; Natural Limiting Factors; and Human Impacts. Population Limitation in Birds serves as a needed resource expanding on Dr. David Lacks research in this area of ornithology in the 1950s. It includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie. Provides a sorely needed introduction to a long-established core subject in ornithology Focuses on local scale factors Written by a well-known biologist and effective communicator Includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie
Download or read book South African Journal of Marine Science written by and published by . This book was released on 2001 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Birds written by Heimo Mikkola and published by BoD – Books on Demand. This book was released on 2021-07-21 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many humans, birds are the most fascinating group of animals and they are definitely among the best-known and studied organisms. Thanks to global citizen science data, we know that there are some 50 billion individual birds in the world at present, which is about six birds for every human on the planet. Birds have an important role as indicators of the state of the environment, giving them high public value. Human-related global impacts such as climate changes and accelerating urbanization force extant species to continuous adaptations, population modifications, or even outright extinction. This book includes nine chapters covering such topics as bird genetics, the colour of avian plumage, conservation problems, sustainable hunting, habitat disturbance, range expansion and introductions, and long-term bird population changes and challenges. A key chapter explains the genetic rules and reasons why we have continuously more bird species in the world and why we may end up having 7,000 species more than the present 11,000 species.
Download or read book Penguins written by Pablo Garcia Borboroglu and published by University of Washington Press. This book was released on 2015-10-05 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Penguins, among the most delightful creatures in the world, are also among the most vulnerable. The fragile status of most penguin populations today mirrors the troubled condition of the southern oceans, as well as larger marine conservation problems: climate change, pollution, and fisheries mismanagement. This timely book presents the most current knowledge on each of the eighteen penguin species-from the majestic emperor penguins of the Antarctic to the tiny blue penguins of New Zealand and Australia, from the northern rockhopper penguins of the South Atlantic and Indian Oceans to the Galapagos penguins of the equator-written by the leading experts in the field. Included for each species: o Life history o Distribution, population sizes and trends o International Union for the Conservation of Nature (IUCN) status o Threats to survival o Legal protection The book also provides information on current conservation efforts, outlines the most important actions to be taken to increase each population's resilience, and recommends further research needed to protect penguins and the living creatures that share their environment. Beautifully illustrated with full-color photographs of each species in their natural habitat and detailed charts and graphs, Penguins will be an invaluable tool for researchers, conservation groups, and policy makers. It will also enchant anyone interested in the lives or the plight of these fascinating animals. Watch the trailer: http://www.youtube.com/watch?v=0s0BbIU6cqE&feature=plcp
Download or read book Trends of African penguin Spheniscus demersus populations in the 20th century written by R.J.M. CRAWFORD and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Island of Penguins written by Cherry Kearton and published by . This book was released on 2013-10 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a new release of the original 1931 edition.
Download or read book A Century of Marine Science in South Africa written by and published by . This book was released on 1997 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Mammals Fisheries Tourism and Management Issues written by Nicholas Gales and published by CSIRO PUBLISHING. This book was released on 2003-10-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Mammals: Fisheries, Tourism and Management Issues brings together contributions from 68 leading scientists from 12 countries to provide a comprehensive, up-to-date review on the way we manage our interactions with whales, dolphins, seals and dugongs. The book examines how we have fared conserving the world’s marine mammal populations, with a focus on the key issues of fisheries and tourism. From a unique southern hemisphere perspective, the authors consider how science informs the culling debate, how wild fisheries and aquaculture interact with marine mammal populations and how we might manage the effects of whale, dolphin and seal watching industries. The authors also address other issues such as the way in which ethics, genetics, acoustics, ecosystem models and pollution influence the management and conservation of marine mammals. Marine Mammals is an invaluable and accessible resource for all those involved with marine mammals, including scientists, managers, policy makers, industry representatives and students. Winner of a 2004 Whitley Award.
Download or read book African Journal of Marine Science written by and published by . This book was released on 2008 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hand Rearing Birds written by Rebecca S. Duerr and published by John Wiley & Sons. This book was released on 2020-03-10 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed guide to hand-rearing techniques for raising young birds, providing complete coverage of a wide variety of avian species and taxonomic groups for all avian care professionals. Chapters are written by expert rehabilitation, aviculture, and zoo professionals, and include useful references and bibliographies for further reading and research. Each chapter provides valuable information on appropriate intervention, housing, feeding, and care. Hand-Rearing Birds, Second Edition presents 50 chapters, including 12 new chapters on species or groups of species not featured in the previous edition. It also features color photographs that help illustrate many concepts pertinent to birds. This important reference: Offers a detailed guide to hand-rearing techniques including species-specific guides to caring for and raising young birds Covers a wide variety of avian species and taxonomic groups Discusses how to examine a chick to identify problems such as hypothermia, dehydration, injuries, and common diseases, and what to do Combines information on the science and skill needed to successfully hand-rear birds Presents full-color photographs throughout Hand-Rearing Birds, Second Edition is an essential resource for avian rehabilitators, breeders, veterinarians, and zoo staff.
Download or read book The Penguins written by Peter Dann and published by Hyperion Books. This book was released on 1995 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of papers arising from the second International Penguin Conference held at Phillip Island in 1992. Covers aspects of breeding biology, feeding, ecology, energetics, behaviour and management. Discusses topics such as the evolutionary ecology of the king penguin, energy expenditure by Adelie penguins, social stimulation and reproductive schedules of penguins and penguin responses to humans in Antarctica. Includes references and an index.
Download or read book Islands written by Peter Vitousek and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceanic islands represent a set of systems in which biological diversity varies as a consequence of remoteness or size, not environment; they are also generally simpler than continental ecosystems. Islands therefore provide an opportunity to determine the direct effects of biological diversity on ecosystem function. The volume addresses the components of biological diversity on islands and their patterns of variation; the modern threats to the maintenance of biological diversity on islands; the consequences of island biology and its modification by humanity regarding aspects of ecosystem function; the global implications of islands for conservation; and how islands can help one to understand the processes inducing changes throughout the world.
Download or read book South African Journal of Science written by and published by . This book was released on 1995 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
