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Chargement... The Polar Bear Scientists (Scientists in the Field Series)par Peter Lourie
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Inscrivez-vous à LibraryThing pour découvrir si vous aimerez ce livre Actuellement, il n'y a pas de discussions au sujet de ce livre. 599.7 Scientists say in this book that polar bears are going instinct. I believe this however but it says due to global warming. there has been a recent study saying that global warming is not true. I think that polar bears are going extinct because people keep hunting them. This is the arctic heritaqe where polar bears live, and it is very important that they kill them. Polar bears are also captured and brought into zoo's and worked on for science purposes. Polar bears are beautiful animals and also can not just live on land. They have to be very close to water. These Scientists track and monitor polar bears with collars and tattoos on the inner lips/mouths. While under immobilizing drugs, the scientists take samples from the bears and weigh them to keep track of their health. This book takes a good look at what effect global warming is having on these bears and their way of life. Each time I read one of these books it breaks my heart just a little bit (or more). I'm always left wondering if there is anything that can really be done to preserve these beautiful creatures. This is a completely interesting book that shares the details of “capturing” information regarding polar bears. They are an endangered species that scientists are trying to find out about before they become extinct. To gather this information, scientists use methods such as breath tests, blood tests, and tracking collars to gather that information. The scientists are able to collect their samples by "darting" the polar bears with an anesthetic from a hovering helicopter that will knock the bears out for about an hour. That hour is plenty of time for them to take all of their measurements and attach any devices they may want to. I like this book because it helps readers to see how information is gathered in the field. Many people do not question how we got our information. This book clearly outlines this for readers. This book was written to interest children in grades 3-6 and is on a 7.2 reading level. This non-fiction book about polar bears and the scientists who study them offers a lot of information and teaching potential. The book is rather long with lots of text and pictures, so could not be read in one sitting. However, a book study could be done over a period of time in not only learning about polar bears, but also non-fiction texts. This book provides a good example of the many features that non-fiction books inlcude such as: table of contents, glossary, index, futher reading, quoted references, photographs, captions, maps, etc. aucune critique | ajouter une critique
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"In the world there are probably fewer than 30 people who spend all or most of their effort working with polar bears. A veteran polar bear biologist, and the man in charge of Alaskan polar bear research for the past thirty years, Dr. Steven Amstrup has worked full time on polar bears since he joined the Polar Bear Project in 1980. The Polar Bear Project conducts ongoing research on polar bear populations and habitats in the Southern Beaufort Sea in Barrow, Alaska. Now under the leadership of George Durner, the Project has collected four decades of detailed, valuable data about how polar bears are responding to sea ice changes in the Arctic. This information has helped raised awareness about polar bears and their plight, and the same data may one day help scientists make new decisions for polar bear survival. Amstrup and Durner now spend most of their time 725 miles south of Barrow, Alaska at the University of Alaska, Anchorage campus, conducting research and drawing conclusions based on the discoveries that their team makes. Those scientists include polar bear biologists Kristin Simac and Mike Lockhart, based at times out of the abandoned Navy Arctic Research Laboratory in Barrow. Every spring scientists like Kristin and Mike go out for six to eight weeks to capture bears on the Southern Beaufort Sea. By capture one means "tranquilize, take samples and measurements, tag, and release" -- The Polar Bear Scientists begins on the first day of capture season and follows Kristin, Mike, and their helicopter mechanic as they fly through the skies over Barrow, looking for polar bears, and finding more water and less ice than they've seen in the past. The process of capturing polar bears is an exciting and challenging one. The polar bears have to be properly tranquilized in a safe area -- so just because the team spots a polar bear, doesn't mean they automatically try to capture it. Tranquilizing a bear too close to water or thin ice might mean the polar bear could stumble in and drown. It's also a challenge to tranq a mom bear and her babies, but when the opportunity presents itself, the team does its best to get the job done. Once they are on the ground with a captured bear, the research begins. All sorts of information and measurements are taken, blood is drawn, tags are affixed. What does it all mean? Are the polar bears getting smaller and moving further to find food every year? Is there more water and less ice than there was before? What can be done?"-- Aucune description trouvée dans une bibliothèque |
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Google Books — Chargement... GenresClassification décimale de Melvil (CDD)599.786Natural sciences and mathematics Zoology Mammals Carnivora Bears Polar BearsClassification de la Bibliothèque du CongrèsÉvaluationMoyenne:
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