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Author: George A. Jobanek
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 504
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Book Description
This exhaustive, richly annotated resource fills an important gap in Oregon bird literature. George Jobanek has carefully searched dozens of early ornithological, scientific, and natural history journals and publications, from American Field to Zoe, for records of Oregon birds. Because of the rarity of many references and their inaccessibility to most readers, the author has provided annotations for each of the nearly two thousand entries. Jobanek conveys in a concise manner the salient points of each article and frequently quotes from the references, especially descriptions of abundance and range. In addition, many of the annotations include citing of recent references.By briefly describing each item, Jobanek reveals its usefulness for contemporary readers. References are organized by author and cross-indexed by species, county, key word, and year of publication. Key words such as behavior, conservation, distribution, migration, nesting, plumage, and taxonomy have been assigned to each entry to reflect the primary topic or theme of the Oregon material of the reference. A gazetteer identifies localities mentioned in the annotations.This bibliography is a valuable new resource for professional and informed amateur ornithologists, wildlife managers, ecologists, natural historians, librarians, and anyone interested in birds in the Pacific Northwest. Its references will offer researchers a base for future studies and allow readers a glimpse of an earlier, golden era in ornithology.
Author: George A. Jobanek
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 504
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Book Description
This exhaustive, richly annotated resource fills an important gap in Oregon bird literature. George Jobanek has carefully searched dozens of early ornithological, scientific, and natural history journals and publications, from American Field to Zoe, for records of Oregon birds. Because of the rarity of many references and their inaccessibility to most readers, the author has provided annotations for each of the nearly two thousand entries. Jobanek conveys in a concise manner the salient points of each article and frequently quotes from the references, especially descriptions of abundance and range. In addition, many of the annotations include citing of recent references.By briefly describing each item, Jobanek reveals its usefulness for contemporary readers. References are organized by author and cross-indexed by species, county, key word, and year of publication. Key words such as behavior, conservation, distribution, migration, nesting, plumage, and taxonomy have been assigned to each entry to reflect the primary topic or theme of the Oregon material of the reference. A gazetteer identifies localities mentioned in the annotations.This bibliography is a valuable new resource for professional and informed amateur ornithologists, wildlife managers, ecologists, natural historians, librarians, and anyone interested in birds in the Pacific Northwest. Its references will offer researchers a base for future studies and allow readers a glimpse of an earlier, golden era in ornithology.
Author:
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Category : Birds
Languages : en
Pages : 718
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Author:
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Category : Birds
Languages : en
Pages : 268
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Author: Michael Dickens Pope
Publisher:
ISBN:
Category : Mountain quail
Languages : en
Pages : 184
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Book Description
Mountain Quail (Oreortyx pictus) populations have declined in many areas of the western Great Basin during the past century. Yet the life history of this species is little known. From 1997 to 2000, I studied radio-marked Mountain Quail in Hell's Canyon in northeastern Oregon, in the Cascade Mountains of southwestern Oregon, and a translocated sample of quail captured in the Cascades and released in Hell's Canyon. I monitored 252 radio-marked quail to determine reproductive characteristics, survival rates, habitat associations, and diets. Mountain Quail employed 2 strategies in selecting breeding sites, they remained in winter ranges to breed or migrated 1.5-30 km to new breeding ranges. Of 34 nests found in northeastern Oregon most were associated with coniferous forests and understories dominated by snowberry (Symphoricarpos albus) and mallow ninebark (Physocarpus malvaceus). In southwestern Oregon, nests (n = 23) were generally located in early-seral (shrub-sapling) vegetation. Shrub height, shrub density, and canopy closure were greater at nest sites than at random plots. Nearly 50% of the nests were incubated exclusively by males. In addition to incubation, males appeared to be nearly full partners in brood rearing, and males had similar clutch and brood sizes and earlier hatch dates than females. I observed 6 females that produced 2 simultaneous clutches; males and females of each pair incubated separate clutches. Nest attendance patterns were similar for males and females, but quail in Hell's Canyon were on nests longer before absences, and quail in the Cascade Mountains were more frequently absent during early morning. Survival rates were similar for native and translocated quail in Hell's Canyon and the Cascades, but males had higher survival rates than females. Mountain Quail in Hell's Canyon were mostly located in plant communities found on moderate to steep slopes, with an overstory dominated by conifers {Douglas-fir (Pseudotsuga menziesi) and ponderosas pine (Pinus ponderosa)}, and understories dominated by snowberry, mallow ninebark, or dogwood (Cornus spp.). In southwestern Oregon, most Mountain Quail observations were in early-seral, successional shrub/sapling stands. In the Cascades during the fall and winter Mountain Quail used many different food resources, but their diets were composed primarily of legumes.
Author: David H. Johnson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 764
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Book Description
This volume provides information about the terrestrial, freshwater, and marine habitats of Oregon and Washington and the wildlife that depend upon them; it also supports broader and more consistent conservation planning, management, and research. The 27 chapters identify 593 wildlife species, define some 300 wildlife terms, profile wildlife communities, review introduced and extirpated species and species at risk, and discuss management approaches. The volume includes color and bandw photographs, maps, diagrams, and illustrations; and the accompanying CD-ROM contains additional wildlife data (60,000 records), maps, and seven matrixes that link wildlife species with their respective habitat types. Johnson is a wildlife biologist, engineer, and habitat scientist; and O'Neill is director of the Northwest Habitat Institute; they worked together on this publication project as its managing directors. Annotation copyrighted by Book News Inc., Portland, OR
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Category : American literature
Languages : en
Pages : 1230
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Category : Academic libraries
Languages : en
Pages : 798
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Author: Barbara Mearns
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Category : Biography & Autobiography
Languages : en
Pages : 410
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Book Description
John Kirk Townsend was an ornithologist from Philadelphia who crossed the Rocky Mountains in 1834 and visited Hawaii twice, returning with a great haul of bird and mammal specimens used by John James Audubon for his 'Birds of America' and 'Viviparous Quadrupeds'. The authors examine his life and track his journey.
Author:
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Category : Bibliographical literature
Languages : en
Pages : 1176
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Author:
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Category : Bird watching
Languages : en
Pages : 446
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Book Description
