Index Catalog // ScholarsArchive@OSU

Managing the spatial configuration of land : the economics of land use and habitat fragmentation

Creator:: Lewis, David James
Abstract:: Habitat fragmentation has been widely studied in the biological literature and is considered a primary threat to biodiversity. However, there has been little research on land-use policies to reduce fragmentation. This dissertation focuses on two major research issues related to fragmentation policies. First, I develop an analytical model to analyze...
Resource Type:: Dissertation
Full Text:: Effects of Forest Fragmentation ..22 3. Optimal Landscape Conservation with Habitat Fragmentation Effects

Tropical forest fragmentation limits pollination of a keystone understory herb

Creator:: Hadley, Adam S., Frey, Sarah J. K., Robinson, W. Douglas, Kress, W. John, and Betts, Matthew G.
Abstract:: Loss of native vegetation cover is thought to be a major driver of declines in pollination success worldwide. However, it is not well known whether reducing the fragmentation of remaining vegetation can ameliorate these negative effects. We tested the independent effects of composition vs. configuration on the reproductive success of...
Resource Type:: Article
Full Text:: subsequently refer to habitat loss as changes in landscape composition and fragmentation per se as the

Relationship between landscape structure and avian abundance patterns in the Oregon Coast Range

Creator:: McGarigal, Kevin
Abstract:: Human-induced fragmentation of forests is increasing, yet the consequences of these landscape changes to vertebrate communities are poorly understood. Despite progress in our understanding of how bird communities respond to forest fragmentation caused by agricultural or urban development, we have little understanding of these dynamics in landscapes undergoing intensive forest...
Resource Type:: Dissertation

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Creator:: Johnson, David Harold, 1956-
Resource Type:: Masters Thesis
Full Text:: Landscape Assessment 70 Review of Forest Fragmentation and Implications 72 to Owls Historical Perspective

Associations between forest fragmentation patterns and genetic structure in Pfrimer’s Parakeet (Pyrrhura pfrimeri), an endangered endemic to central Brazil’s dry forests

Creator:: Miller, M. P., Bianchi, C. A., Mullins, T. D., and Haig, S. M.
Abstract:: When habitat becomes fragmented, populations of species may become increasingly isolated. In the absence of habitat corridors, genetic structure may develop and populations risk reductions in genetic diversity from increased genetic drift and inbreeding. Deforestation of the Cerrado biome of Brazil, particularly of the dry forests within the Paran River...
Resource Type:: Article
Full Text:: fragmentation continues at its current pace. Keywords Landscape genetics � Cerrado biome � Dry forests

Regional changes in landscape pattern and carbon stores in the interior of British Columbia as determined by satellite imagery

Creator:: Sachs, Donald
Abstract:: The detection and mapping of large scale changes to forested landscapes is increasingly important in ecology and management. I used Landsat TM and MSS imagery to map forest cover in 1992 for a 4.2 million ha area of the interior of British Columbia with an overall classification accuracy of 79%....
Resource Type:: Dissertation

Barred Owls and Landscape Attributes Influence Territory Occupancy of Northern Spotted Owls

Creator:: Sovern, Stan G., Forsman, Eric D., Olson, Gail S., Biswell, Brian L., Taylor, Margaret, and Anthony, Robert G.
Abstract:: We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State, USA, 1989–2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would be occupied...
Resource Type:: Article

Forest landscape analysis and design : a process for developing and implementing land management objectives for landscape patterns

Creator:: Diaz, Nancy M., Apostol, Dean, and United States. Forest Service. Pacific Northwest Region
Abstract:: The purpose of this publication is to provide a means by which forest landscapes can be understood as ecological systems, and to use this knowledge to help shape the landscapes created through National Forest land management activities.
Resource Type:: Technical Report
Full Text:: FLAD.indd Forest Landscape Analysis and Design A Process for

Northern goshawk habitat analysis in managed forest landscapes

Creator:: McGrath, Michael Thomas
Resource Type:: Masters Thesis
Full Text:: level information consisted of landscape composition and fragmentation metrics obtained from digitized

Detecting landscape changes in the interior of British Columbia from 1975 to 1992 using satellite imagery

Creator:: Sachs, Donald L., Sollins, Phillip, and Cohen, Warren B.
Abstract:: To consider the regional scale effects of forest management requires complete and consistent data over large areas. We used Landsat Thematic Mapper and Multispectral Scanner (TM and MSS) imagery to map forest cover and detect major disturbances between 1975 and 1992 for a 4.2 x 106 ha area of interior...
Resource Type:: Article
Full Text:: Detecting landscape changes in the interior of British Columbia from

ScholarsArchive@OSU

Managing the spatial configuration of land : the economics of land use and habitat fragmentation

Tropical forest fragmentation limits pollination of a keystone understory herb

Relationship between landscape structure and avian abundance patterns in the Oregon Coast Range

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Associations between forest fragmentation patterns and genetic structure in Pfrimer’s Parakeet (Pyrrhura pfrimeri), an endangered endemic to central Brazil’s dry forests

Regional changes in landscape pattern and carbon stores in the interior of British Columbia as determined by satellite imagery

Barred Owls and Landscape Attributes Influence Territory Occupancy of Northern Spotted Owls

Forest landscape analysis and design : a process for developing and implementing land management objectives for landscape patterns

Northern goshawk habitat analysis in managed forest landscapes

Detecting landscape changes in the interior of British Columbia from 1975 to 1992 using satellite imagery

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