Download or read book Selected Bibliography on the Sea Otter written by Ethel I. Todd and published by . This book was released on 1972 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bibliography stressing recent literature dealing with biology of the sea otter (Enhydra lutris).

Download or read book Marine Mammals written by and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Annotated Bibliography on the North American River Otter written by Renn Tumlison and published by . This book was released on 1985 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1972 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Scientific Report wildlife written by and published by . This book was released on 1972 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mourning Dove Status Report 1970 written by James L. Ruos and published by . This book was released on 1971 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. mourning dove population indexes increased by 4% from 1969 to 1970 in the Eastern Management Unit, but declined 2% in the Central Management Unit and 11% in the Western Management Unit. The changes were below the 10-year means, 1960-69, by 3% in the Eastern Unit, 15% in the Central, and 27% in the Western. Regression analyses of the call-count data for 1960-70 indicate a statistically significant downward trend in dove breeding populations in all management units; mean rates of decline were 1% a year in the Eastern Unit, 3% a year in the Central, and 4% in the Western

Download or read book Return of the Sea Otter written by Todd McLeish and published by Sasquatch Books. This book was released on 2018-03-20 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A science journalist's journey along the Pacific Coast from California to Alaska to track the status, health, habits, personality, and viability of sea otters--the appealing species unique to this coastline that was hunted to near extinction in the 18th and 19th centuries. These adorable, furry marine mammals--often seen floating on their backs holding hands--reveal the health of the coastal ecosystem along the Pacific Ocean. Once hunted for their prized fur during the 1700s and 1800s, these animals nearly went extinct. Only now, nearly a century after hunting ceased, are populations showing stable growth in some places. Sea otters are a keystone species in coastal areas, feeding on sea urchins, clams, crab, and other crustaceans. When they are present, kelp beds are thick and healthy, providing homes for an array of sealife. When otters disappear, sea urchins take over, and the kelp disappears along with all of the creatures that live in the beds. Now, thanks to their protected status, sea otters are making a comeback in California, Washington, and Alaska.

Download or read book Sea Otter Heroes written by Patricia Newman and published by Millbrook Press. This book was released on 2019-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Audisee® eBooks with Audio combine professional narration and sentence highlighting for an engaging read aloud experience! A Robert F. Sibert Informational Honor Book A Green Earth Book Award Winner This up-close look at a fascinating scientific discovery highlights the critical role predators such as sea otters play in keeping ecosystems healthy. In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water. This healthy seagrass baffled marine biologist Brent Hughes. The scientist expected this estuary to be overrun with algae, causing the seagrass to die. Why was the seagrass thriving? As Brent investigated, signs pointed to an unexpected player helping to keep the seagrass healthy: sea otters! What do these top predators have to do with an aquatic grass at the opposite end of the food chain? Brent's amazing discovery gave scientists insight into the delicate balance of ecosystems. Follow science in action as Brent conducts the research that led to this major discovery.

Download or read book Sea Otter Heroes written by Patricia Newman and published by Millbrook Press (Tm). This book was released on 2017 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Marine biologist Brent Hughes discovered a surprising connection between sea otters and sea grass at an estuary in northern California. Follow science in action as Hughes conducts the research that led to this major discovery"--Provided by publisher.

Download or read book Government Reference Books written by and published by . This book was released on 1974 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Otter written by Daniel Allen and published by Reaktion Books. This book was released on 2020-05-11 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although rarely seen in the wild, the otter is admired for its playful character and graceful aquatic agility, fixed in the popular imagination through books and films such as Tarka the Otter and Ring of Bright Water. This is just a small part of its story, however: throughout history, the otter has been hunted for its fur and to prevent it from killing fish. Featuring numerous images from nature and culture, as well as examples from folklore, sports, and literature, this wide-ranging book also explores the movement against otter hunting, and the ongoing efforts promoting otter conservation. A fittingly lively study of its subject, Otter offers a new way of thinking about this much-loved but endangered animal.

Download or read book Research and Development Series written by and published by . This book was released on 1987 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Book catalog of the Library and Information Services Division written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Book Catalog of the Library and Information Services Division Shelf List catalog written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Steller s Island written by Dean Littlepage and published by The Mountaineers Books. This book was released on 2006 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: History, adventure, and science-the 18th century naturalist, Georg Steller, sailed to the north coast of North America and introduced its biological wonders to the world.