http://congdong.bancongxanh.com/33963.php Melting sea ice is a form of habitat loss and no species can survive without its habitat. Normally excluded from the ice-filled waters of the north, killer whales may become the top predator in the marine ecosystem. If polar bears disappear because sea ice disappears, the Arctic as we know it will no longer exist. And this highly specialized species cannot survive without the sea ice on which it hunts, travels, eats, sleeps, plays, and rears its young.
This is not the last of the depressing photo captions but I think you get the point. There is a list of references in the back but no way to associate any particular statement with the document it came from, like this one pg. All of the doom and gloom predictions about the future of sea ice are made as statements of fact.
He does with some of his historical facts in Chapter 4, why not elsewhere? Not even the IPCC gets a mention in the text in regards to global warming — at least, not that I could find.
Polar bears injured in fights or accidents may either die from their injuries or become unable to hunt effectively, leading to starvation. Fuller; G. Nov 16, rated it did not like it Shelves: science. Encyclopedia of Marine Mammals 2nd ed. After drawing its first breath, every newborn mammal turns his or her complete attention to obtaining milk. African civet C. Polar bears sometimes have problems with various skin diseases that may be caused by mites or other parasites.
A student or curious reader looking to follow up on a particular topic is going to find this book a frustrating springboard. Confirmation of this conclusion is found on the last two pages of the book.
Whether we have the will to do so is the question. I have learned a lot about their lives and I feel I owe them something for the privilege of having studied them. If learning more about polar bears inspires people to act in their favor, then, in some small way, the debt is being repaid. Both end with emotional appeals for readers to be advocates, not biologists.
Polar Bears: A Complete Guide to Their Biology and Behavior Hardcover – March 31, The polar bear, king of the Arctic, is one of the world’s most recognizable animals. Andrew E. Derocher and Wayne Lynch have spent decades following the bears, and this book offers the most. Editorial Reviews. Review this book is as stunning to look at as it is fascinating to read. Polar Bears: A Complete Guide to Their Biology and Behavior - Kindle edition by Andrew E Derocher, Wayne Lynch. Download it once and read it on.
References Stirling, I. Effects of climate warming on polar bears: a review of the evidence. Global Change Biology 18 9 doi As polar bears are at the top of the food web, they are further exposed to pollution through contaminated food sources. Derocher, A.
Ontario Trappers Association, Toronto. Rich, T.
Rouse, Distinguishing Features. In: Wildlife Monographs — Polar. Insulative Properties of Fur. Journal of Thermal Biology , 7 4 Notify me of followup comments via e-mail. Powered by WordPress and Origin. Observations of Animal Behaviour Polar Bears are Clean Freaks? Cleaning up After Eating After minutes of feeding, polar bears station next to a pool of water to rinse and lick the paws and face for minutes before they resume their meal Kolenosky, Ingesting Pollutants During the grooming process, polar bears is not only in contact with natural contaminants but also man-made pollution.
Bibliography Derocher, A. Kolenosky, G.