Selected Bibliography On The Sea Otter
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Selected Bibliography On The Sea Otter
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Author : Ethel I. Todd
language : en
Publisher:
Release Date : 1972
Selected Bibliography On The Sea Otter written by Ethel I. Todd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Sea otter categories.
Bibliography stressing recent literature dealing with biology of the sea otter (Enhydra lutris).
Marine Mammals
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Author :
language : en
Publisher:
Release Date : 1981
Marine Mammals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Marine mammals categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1972
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Government publications categories.
Monthly Catalog Of United States Government Publications Cumulative Index
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Author : United States. Superintendent of Documents
language : en
Publisher:
Release Date : 1976
Monthly Catalog Of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with United States categories.
Ots Selective Bibliography
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Author :
language : en
Publisher:
Release Date :
Ots Selective Bibliography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Technical reports categories.
The Sea Otter
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Author : Maggie Blake
language : en
Publisher:
Release Date : 1990
The Sea Otter written by Maggie Blake and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Endangered species categories.
Special Scientific Report Wildlife
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Author :
language : en
Publisher:
Release Date : 1972
Special Scientific Report Wildlife written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Wildlife conservation categories.
Mourning Dove Status Report 1970
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Author : James L. Ruos
language : en
Publisher:
Release Date : 1971
Mourning Dove Status Report 1970 written by James L. Ruos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Bird populations categories.
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
Return Of The Sea Otter
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Author : Todd McLeish
language : en
Publisher: Sasquatch Books
Release Date : 2018-03-20
Return Of The Sea Otter written by Todd McLeish and has been published by Sasquatch Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-20 with Nature categories.
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.
Sea Otter Heroes
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Author : Patricia Newman
language : en
Publisher: Millbrook Press
Release Date : 2019-01-01
Sea Otter Heroes written by Patricia Newman and has been published by Millbrook Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-01 with Juvenile Nonfiction categories.
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.