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From two bestselling picture book veterans comes a gripping, climate change–themed tale of a polar bear family fighting to survive It is March in the cold North. The long-gone sun is rising. Silvery ice glitters. Snow sparkles in the hazy glow. Two polar bears stand at ice edge: mother and cub. A mother polar bear and her cub are busy searching for food, when suddenly, the ice they stand on breaks away—crack! Cut adrift, her cub is out of reach as the treacherous sea begins to carry him away. In she dives! Can they return to land safely? Simply told yet dramatic, and with realistic, exquisite illustrations and informative back matter with facts about polar bears, Ice Bears at Ice Edge immerses readers in one animal family’s story, while also highlighting the broader plight of endangered wildlife whose habitats are threatened by climate change.
Ethology and Behavioral Ecology of Sea Otters and Polar Bears by Randall W. Davis,Anthony M. Pagano Pdf
Sea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic life and the most recently evolved among marine mammals. Sea otters are amphibious but seldom come ashore, and polar bears primarily occur on sea ice or along the shore. When at sea, both species spend most of their time swimming at the surface or making short, shallow dives when foraging or pursuing prey. Indeed, polar bears rarely pursue seals in water. Nevertheless, polar bears are powerful swimmers and will stalk seals from the water. As with many other large carnivores, they are solitary hunters. Although sea otters are gregarious and form aggregations at sea called rafts, they are primarily asocial. Except during mating, the principal interaction among sea otters occurs between a female and offspring during the six-month dependency period. In large carnivores (e.g., wolves and lions) that feed on ungulates, sociality and cooperation are favored because of the need to capture large prey and defend carcasses. Polar bears, which are the largest terrestrial carnivore, are solitary hunters of seals and are neither gregarious nor social. Males and females briefly associate during courtship and mating. During this time, males aggressively compete for females. At other times, males generally avoid each other except for aggregations of males that form while summering on land, and females with cubs avoid males, which are known for infanticide. As with sea otters, the interaction of polar bears outside of mating occurs between a female and her offspring during the 2-3 year dependency period. This interaction is critically important when altricial cubs are born in the winter den. This book provides new insight into the ethology and behavioral ecology of sea otters and polar bears. Each chapter reviews the discoveries of previous studies and integrates recent research using new techniques and technology. The authors also address historic and current anthropogenic challenges for their survival as climate change alters entire marine ecosystems.
Polar Bears by IUCN/SSC Polar Bear Specialist Group. Working Meeting Pdf
These proceedings provide an overview of the ongoing research and management activities on polar bears in the circumpolar arctic. Together with the previous 13 proceedings, they provide an historic record of international efforts in protecting, studying and managing polar bears. With recent documentation of how warmer arctic climate might affect the sea ice habitat of polar bears, the predictions of even warmer climate in the next decades, and documentation of effects on polar bears subpopulations, an evaluation of the red list status of polar bear subpopulations was followed by an increased conservation designation of vulnerable. In the complexity of possible interactions between climate change, local harvest, and in some areas high levels of pollutants, an increased level of international cooperation was advocated.
Presents an introduction to the polar bear, discussing its evolution, physical characteristics, life cycle, predatory behavior, habitat, and the threats to its existence from global warming.
The Natural and Societal Challenges of the Northern Sea Route by Willy Østreng Pdf
Yohei Sasakawa The Northern Sea Route is the shortest shipping route connecting the Far East and Europe. However, the route has been practically inaccessible to commercial vessels, due to the harsh natural conditions in the area, which make navigation possible for only a small part of the year, and then only with an icebreaker leading the way. Opening the Northern Sea Route would greatly facilitate international shipping, making two routes - a northbound one through the NSR, and a southbound one through Suez- available throughout all seasons. The Northern Sea Route would also help to boost economic development, including the exploitation of natural resources in Russian regions along the coast of the Arctic Ocean. Thanks to international cooperation, we have been able to set up and successfully conclude a special project to investigate the possibilities of developing the Northern Sea Route as a commercial route, while protecting the environment, wildlife and peoples of the Arctic Ocean region. This represents a highly significant step in terms of future global development.
IUCN/SSC Polar Bear Specialist Group. Working Meeting Oslo, Norway),Andrew E. Derocher,International Union for Conservation of Nature and Natural Resources. Species Survival Commission
Author : IUCN/SSC Polar Bear Specialist Group. Working Meeting Oslo, Norway),Andrew E. Derocher,International Union for Conservation of Nature and Natural Resources. Species Survival Commission Publisher : IUCN Page : 172 pages File Size : 44,5 Mb Release : 1998 Category : Polar bear ISBN : 2831704596
Polar Bears by IUCN/SSC Polar Bear Specialist Group. Working Meeting Oslo, Norway),Andrew E. Derocher,International Union for Conservation of Nature and Natural Resources. Species Survival Commission Pdf
Polar bears are the largest of all of the earth’s land predators. In this evocative book, you’ll learn about the bears’ daily habits—from eating, to playing, to sleeping, to socializing, and mating. You’ll discover facts about their natural habitats, dens, physical characteristics, their numbers, prey preferences, and much more. The book is filled with a stunning collection of over 180 images from Joe and Mary Ann McDonald, Tom Wester, Steve Metildi, and Katherine Pierce. On page after page, you’ll enjoy storytelling images that depict polar bear cubs and adults in the wild. With a rich combination of compelling photographs and detailed, informative captions that provide descriptions of the behaviors and actions depicted in the images, both kids and adults alike are sure to enjoy this book.
From bestselling author James Raffan comes an enlightening and original story about a polar bear’s precarious existence in the changing Arctic, reminiscent of John Vaillant’s The Golden Spruce. Nanurjuk, “the bear-spirited one,” is hunting for seals on Hudson Bay, where ice never lasts more than one season. For her and her young, everything is in flux. From the top of the world, Hudson Bay looks like an enormous paw print on the torso of the continent, and through a vast network of lakes and rivers, this bay connects to oceans across the globe. Here, at the heart of everything, walks Nanurjuk, or Nanu, one polar bear among the six thousand that traverse the 1.23 million square kilometers of ice and snow covering the bay. For millennia, Nanu’s ancestors have roamed this great expanse, living, evolving, and surviving alongside human beings in one of the most challenging and unforgiving habitats on earth. But that world is changing. In the Arctic’s lands and waters, oil has been extracted—and spilled. As global temperatures have risen, the sea ice that Nanu and her young need to hunt seal and fish has melted, forcing them to wait on land where the delicate balance between them and their two-legged neighbors has now shifted. This is the icescape that author and geographer James Raffan invites us to inhabit in Ice Walker. In precise and provocative prose, he brings readers inside Nanu’s world as she treks uncertainly around the heart of Hudson Bay, searching for nourishment for the children that grow inside her. She stops at nothing to protect her cubs from the dangers she can see—other bears, wolves, whales, human beings—and those she cannot. By focusing his lens on this bear family, Raffan closes the gap between humans and bears, showing us how, like the water of the Hudson Bay, our existence—and our future—is tied to Nanu’s. He asks us to consider what might be done about this fragile world before it is gone for good. Masterful, vivid, and haunting, Ice Walker is an utterly unique piece of creative nonfiction and a deeply affecting call to action.
Polar Bears by IUCN Polar Bear Specialist Group. Working Meeting,International Union for Conservation of Nature and Natural Resources Pdf
Proceedings of the tenth working meeting of the IUCN/SSC Polar Bear Specialist Group held in Sochi, USSR, October 25-29, 1988. Emphasis on polar bear conservation and management with reports from Canada, Greenland, Svalbard, Norway, Alaska and Soviet Arctic.
Sea Ice by David N. Thomas,Gerhard S. Dieckmann Pdf
As the Arctic perennial sea ice continues to disappear at an alarming rate, a full understanding of sea ice as a crucial global ecosystem, and the effects of its loss is vital for all those working with and studying global climate change. Building on the success of the previous edition, the second edition of Sea Ice, now much expanded and in full colour throughout, includes six completely new chapters with complete revisions of all the chapters included from the first edition. The Editors, Professor David Thomas and Dr Gerhard Dieckmann have once again drawn together an extremely impressive group of internationally respected contributing authors, ensuring a comprehensive worldwide coverage of this incredibly important topic. Sea Ice, second edition, is an essential purchase for oceanographers and marine scientists, environmental scientists, biologists, geochemists and geologists. All those involved in the study of global climate change will find this book to contain a wealth of important information. All libraries in universities and research establishments where these subjects are studied and taught will need multiple copies of this book on their shelves. truly multidisciplinary approach world leading authors and editors international in scope, covering both Arctic and Antarctic work of vital interest to all those involved in global warming and climate change research highly illustrated full colour book with colour images throughout
Polar Bears in Northwest Greenland by Erik W. Born Pdf
The rationale for this survey was the indication that the catch of polar bears in Northwest Greenland had increased since the early 1990s, simultaneously with marked changes in weather conditions, sea ice cover, and glaciers. Building on information provided by 72 polar bear hunters living in Greenland's towns of Qaanaaq and Upernavik, this study offers important discussions about polar bear biology, polar bear catch, climate change, and the effect of these changes on the polar bears. The survey also presents the demography of the catch of polar bears in the area during 1952-2005, described on the basis of 588 catches.
Oceanography and Marine Biology, An Annual Review, Volume 40 by R. N. Gibson,Margaret Barnes,R. J. A. Atkinson Pdf
Interest in oceanography and marine biology and its relevance to global environmental issues continues to increase, creating a demand for authoritative reviews that summarize recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its foundation, by the late Harold Barnes, more than 40 years ago. It is an
Disappearing Polar Bears and Permafrost by United States. Congress. House. Committee on Science and Technology. Subcommittee on Investigations and Oversight Pdf