{"product_id":"population-demography-of-northern-spotted-owls-9780520270084","title":"Population Demography of Northern Spotted Owls","description":"\u003cdiv\u003eThe 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.\u003cbr\u003e\u003cbr\u003e Researchers:\u003cbr\u003e Steven H. Ackers\u003cbr\u003e Lawrence S. Andrews\u003cbr\u003e David R. Anderson\u003cbr\u003e Robert G. Anthony\u003cbr\u003e Brian L. Biswell\u003cbr\u003e Kenneth P. Burnham\u003cbr\u003e Peter C. Carlson\u003cbr\u003e Raymond J. Davis\u003cbr\u003e Lowell V. Diller\u003cbr\u003e Katie M. Dugger\u003cbr\u003e Eric D. Forsman\u003cbr\u003e Alan B. Franklin\u003cbr\u003e Elizabeth M. Glenn\u003cbr\u003e Scott A. Gremel\u003cbr\u003e Dale R. Herter\u003cbr\u003e J. Mark Higley\u003cbr\u003e James E. Hines\u003cbr\u003e Robert B. Horn\u003cbr\u003e Joseph B. Lint\u003cbr\u003e James D. Nichols\u003cbr\u003e Janice A. Reid\u003cbr\u003e James P. Schaberl\u003cbr\u003e Carl J. Schwarz\u003cbr\u003e Thomas J. Snetsinger\u003cbr\u003e Stan G. Sovern\u003cbr\u003e Gary C. White\u003c\/div\u003e","brand":"Eric Forsman","offers":[{"title":"Default Title","offer_id":42960029646966,"sku":"9780520270084","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/1374\/6550\/files\/CoreSourceHub_bef14a84-6499-47a8-bbe6-ecf9525df0fd.jpg?v=1767781943","url":"https:\/\/ingramacademic.com\/products\/population-demography-of-northern-spotted-owls-9780520270084","provider":"Ingram Academic \u0026 Professional","version":"1.0","type":"link"}