• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 33
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 2
  • 2
  • 1
  • Tagged with
  • 43
  • 43
  • 43
  • 30
  • 10
  • 6
  • 6
  • 6
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Structure and development of old-growth Douglas-fir in central western Oregon /

Poage, Nathan Jeremy. January 2000 (has links)
Thesis (Ph. D.)--Oregon State University, 2001. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
2

Terrestrial macrofungi of old-growth prairie groves /

Hustad, Vincent P., January 2008 (has links) (PDF)
Thesis (M.S.)--Eastern Illinois University, 2008. / Includes bibliographical references (leaves 49-55).
3

Development of two coniferous stands impacted by multiple, partial fires in the Oregon Cascades : establishment history and the spatial patterns of colonizing tree species relative to old-growth remnant trees /

Goslin, Matthew N. January 1997 (has links)
Thesis (M.S.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 158-167). Also available on the World Wide Web.
4

Fighting for the forests : a history of the Western Australian forest protest movement 1895-2001 /

Chapman, Ron. January 2008 (has links)
Thesis (Ph.D.)--Murdoch University, 2008. / Thesis submitted to the Faculty of Arts and Education. Includes bibliographical references (leaves 426-441)
5

Forest stand structure characteristics for the Cispus adaptive management area, Cascade Range, U.S.A. : implications for old growth, fire hazard, silviculture, and landscape management /

Park, Pil Sun. January 2001 (has links)
Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (leaves 141-151).
6

Sources of variation in ecosystem carbon pools : a comparison of adjacent old- and second-growth forests /

Gathany, Mark A. January 2004 (has links)
Thesis (M.S.)--Ohio University, August, 2004. / Includes bibliographical references (p. 35-40).
7

Sources of variation in ecosystem carbon pools a comparison of adjacent old- and second-growth forests /

Gathany, Mark A. January 2004 (has links)
Thesis (M.S.)--Ohio University, August, 2004. / Title from PDF t.p. Includes bibliographical references (p. 35-40)
8

The Biohydrology of Dysart Woods

Burgess, Macdonald H. 20 December 2006 (has links)
No description available.
9

Foraging Habitat Selection by Ohio Bats: An Examination between Eastern Second Growth Forest, Eastern Old Growth Forest, and Pasture Land

Carter, Richard T. 25 April 2008 (has links)
No description available.
10

Landscape composition around northern spotted owl nests, central Cascade Mountains, Oregon

Swindle, Keith A. 16 October 1997 (has links)
This study describes the composition of forest landscapes surrounding northern spotted owl (Strix occidentalis caurina) nests in the central Cascade Mountains of Oregon. I compared forest composition around 126 owl nests in 70 pair territories with forest composition around 119 points drawn randomly from all terrestrial cover-types, and around 104 points drawn randomly from the old-forest (closed canopy, > 80 yrs) cover type. All nest sites and random points were drawn from U.S. Forest Service lands and were not drawn from privately owned lands or Wilderness Areas. Forest cover was classified on a Landsat Thematic Mapper image. I quantified the percentage of old-forest within 200 concentric circular plots (0.04-5.0-km radii), centered on each analyzed point, using a geographic information system. I used logistic regression to make spatially-explicit inferences. Owl nests were surrounded by more old-forest when compared to points drawn randomly from all terrestrial cover types: there was significantly (P<0.05) more old-forest around the owl nests in plots as large as 1.79 km in radius. When compared to points drawn randomly from the old-forest cover type, owl nests were surrounded by significantly (P<0.05) more old-forest in plots with 0.17-0.80-km radii. Exploratory analyses suggest that the landscape scales most pertinent to northern spotted owl nest site positioning in this study area appear to be (in descending order): the surrounding 10-15 ha (~200-m radius), the surrounding 25-30 ha (~300-m radius), the surrounding 200 ha (800-m radius), and possibly the surrounding 700 ha (1,500-m radius). This study supports the assertion that northern spotted owls are strongly associated with older forests. The results also indicate that owl nests are most associated with higher proportions of old-forest near the nest implying that the arrangement of habitat is important for nest-site selection/positioning Since spotted owls in the central Cascade Mountains of Oregon are known to have home-ranges that average 1,769 ha, it is important to recognize that these results apply to nest-site selection/positioning on the landscape and not to the amount of habitat necessary for pair persistence or successful reproduction. / Graduation date: 1998

Page generated in 0.0785 seconds