Northern Spotted Owls
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Author | : Patricia A. Fink Martin |
Publisher | : Children's Press(CT) |
Total Pages | : 0 |
Release | : 2003-03 |
Genre | : Endangered species |
ISBN | : 9780516274744 |
Ideal for today's young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, the new A True Book series is the definitive nonfiction series for elementary school readers.
Author | : Eric D. Forsman |
Publisher | : Univ of California Press |
Total Pages | : 120 |
Release | : 2011-07-21 |
Genre | : Medical |
ISBN | : 0520270088 |
Conclusions, and Recommendations P.75
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Total Pages | : 448 |
Release | : 1990 |
Genre | : Endangered species |
ISBN | : |
Author | : Eric Forsman |
Publisher | : Univ of California Press |
Total Pages | : 119 |
Release | : 2011-07-21 |
Genre | : Science |
ISBN | : 0520950593 |
The Northern Spotted Owl, a threatened species that occurs in coniferous forests in the western United States, has become a well-known environmental symbol. But how is the owl actually faring? This book contains the results of a long-term effort by a large group of leading researchers to document population trends of the Northern Spotted Owl. The study was conducted on 11 areas in the Pacific Northwest from 1985 to 2008, and its objectives were both to evaluate population trends and to assess relationships between reproductive rates and recruitment of owls and covariates such as weather, habitat, and the invasion of a closely related species, the Barred Owl. Among other findings, the study shows that fecundity was declining in five populations, stable in three, and increasing in three areas. Annual apparent survival rates of adults were declining in 10 out of 11 areas. This broad, synthetic work provides the most complete and up-to-date picture of the population status of this inconspicuous forest owl, which is at the center of the complex and often volatile debate regarding the management of forest lands in the western United States. Researchers: Steven H. Ackers Lawrence S. Andrews David R. Anderson Robert G. Anthony Brian L. Biswell Kenneth P. Burnham Peter C. Carlson Raymond J. Davis Lowell V. Diller Katie M. Dugger Eric D. Forsman Alan B. Franklin Elizabeth M. Glenn Scott A. Gremel Dale R. Herter J. Mark Higley James E. Hines Robert B. Horn Joseph B. Lint James D. Nichols Janice A. Reid James P. Schaberl Carl J. Schwarz Thomas J. Snetsinger Stan G. Sovern Gary C. White
Author | : Bruce G. Marcot |
Publisher | : |
Total Pages | : 32 |
Release | : 1997 |
Genre | : Endangered species |
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Author | : Jared Verner |
Publisher | : |
Total Pages | : 300 |
Release | : 1992 |
Genre | : Birds |
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Total Pages | : 396 |
Release | : 1992 |
Genre | : Endangered species |
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Total Pages | : |
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As part of Kids' Planet, Defenders of Wildlife presents a fact sheet on the northern spotted owl (Strix occidentalis caurina), which is a threatened species. Northern spotted owls are territorial and do not adapt well to habitat disturbances. The fact sheet provides a description of the owl and highlights information on such topics as the lifespan, size, habitat, diet, behavior, and offspring of the owl.
Author | : Eric D. Forsman |
Publisher | : |
Total Pages | : 12 |
Release | : 1983 |
Genre | : Spotted owl |
ISBN | : |
Author | : Carol Parenzan Smalley |
Publisher | : Mitchell Lane |
Total Pages | : 38 |
Release | : 2020-02-04 |
Genre | : Juvenile Nonfiction |
ISBN | : 1545749809 |
In the ancient forests of North America lives a nocturnal hunterthe spotted owl. With its keen eyesight and hearing, it listens and watches for prey. From western Canada to Mexico, and in the states between these two countries, wildlife biologists are observing and counting spotted owls. Once abundant in number, this flying predators days on earth may be limited if changes arent made. In this book, read about out how this owl lives, what threats it faces, and what scientists and activists are doing to help it. Then find out what you can do to help save this threatened bird.