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• 31. [Article] Historical vegetation of central southwest Oregon, based on GLO survey notes : final report to USDI Bureau of Land Management, Medford District

  Final report to USDI Bureau of Land Management. Medford District, Oregon

  Citation × Citation Citation Abstract Copy Title: Historical vegetation of central southwest Oregon, based on GLO survey notes : final report to USDI Bureau of Land Management, Medford District Author: Hickman, O. Eugene, Christy, John A., The Institute for Natural Resources Final report to USDI Bureau of Land Management. Medford District, Oregon Title: Historical vegetation of central southwest Oregon, based on GLO survey notes : final report to USDI Bureau of Land Management, Medford District Author: Hickman, O. Eugene, Christy, John A., The Institute for Natural Resources Final report to USDI Bureau of Land Management. Medford District, Oregon Close

• 32. [Article] Oak Habitat Metric: User's Guide

  The metric is encompassed in two documents, this Oak Habitat Metric User’s Guide and an Oak Habitat Calculator.

  Citation × Citation Citation Abstract Copy Title: Oak Habitat Metric: User's Guide Author: Defenders of Wildlife The metric is encompassed in two documents, this Oak Habitat Metric User’s Guide and an Oak Habitat Calculator. Title: Oak Habitat Metric: User's Guide Author: Defenders of Wildlife The metric is encompassed in two documents, this Oak Habitat Metric User’s Guide and an Oak Habitat Calculator. Close

• 33. [Article] Oak habitat user guide.pdf

  Citation × Citation Citation Abstract Copy Title: Oak habitat user guide.pdf Author: Defenders of Wildlife Title: Oak habitat user guide.pdf Author: Defenders of Wildlife Close

• 34. [Article] Oak_Habitat_Metric_Calculator.Version_1.0.protected-1.xlsx

  Citation × Citation Citation Abstract Copy Title: Oak_Habitat_Metric_Calculator.Version_1.0.protected-1.xlsx Author: Defenders of Wildlife Title: Oak_Habitat_Metric_Calculator.Version_1.0.protected-1.xlsx Author: Defenders of Wildlife Close

• 35. [Article] Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley

  Citation × Citation Citation Abstract Copy Title: Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley Author: Hall, Frederick C. Title: Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley Author: Hall, Frederick C. Close

• 36. [Article] Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon

  Columbian white-tailed deer (Odocoileus virginianus leucurus, CWTD) are a geographically isolated and federally endangered sub-species for which there is a paucity of recent ecological information. I described ...

  Citation × Citation Citation Abstract Copy Title: Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon Author: Ricca, Mark A. Columbian white-tailed deer (Odocoileus virginianus leucurus, CWTD) are a geographically isolated and federally endangered sub-species for which there is a paucity of recent ecological information. I described and examined sources of variation in spatial use patterns (i.e. home range, areas of concentrated use, and movements), habitat associations, and survival for adult and fawn CWTD in Douglas County, Oregon. I radio-collared and monitored 64 adult CWTD and 36 newborn fawn CWTD from ca. December 1995 - September 1998. Locations for adults were obtained from September 1996 - December 1998. Locations for fawns were obtained from June - September, 1997 - 1998. Spatial use estimates for adults tended to be variable among deer. Mean 95% fixed kernel home range size was 74.5 ha (CV = 83%), while areas of concentrated use averaged 8.5 ha (CV = 93%). The sexes appeared to be partitioning space because males had larger home ranges, areas of concentrated use (which are analogous to core areas), and movements than females. Deer inhabiting human-influenced areas (suburban deer) consistently exhibited smaller movements and used less space than those away from human influence (wild deer). Mean home range size, area of concentrated use size, and distance between successive locations was generally greatest in fall and lowest in winter. Site fidelity to seasonal home ranges and areas of concentrated use was lowest between fall-winter and summer-fall. Unexpectedly, size of home ranges and areas of concentrated use were positively correlated with cover type heterogeneity. Annual adult survival rates averaged 0.73. Neither annual survival rates nor functions differed by sex or type. Survival over the entire 3 year study was low (0.39). Most deer died in winter from a combination of emaciation and disease and generally were in poor body condition. Oak-hardwood woodland, riparian, and oak-hardwood savanna shrub were the most frequently used cover types. On an annual basis, the majority of deer (31%) selected riparian areas. The frequency of selection of all non-riparian cover types was < 13%, as most deer either exhibited avoidance or 'neutral selection-avoidance' of these cover types. The probability of use for a particular patch was positively associated with proximity to a stream for 56% of all deer. However, the relative amount of edge within a particular patch had little effect on the odds of use. Patterns of use and selection tended to be similar between the sexes, but suburban deer used conifer and yard cover types more frequently than wild deer. Use and selection of cover types by deer did not significantly differ among seasons. CWTD also demonstrated higher use for more open cover types during crepuscular and nocturnal periods. Areas of concentrated use were random with respect to cover type composition, but were significantly associated with proximity ([less than or equal to] 200 m) to streams. Home ranges, areas of concentrated use, and movements of fawns were variable but tended to reflect their sedentary nature. Home range and area of concentrated use size were not correlated with percent coverage of oak-hardwood woodland, riparian, or shrub dominated cover types. Habitat use patterns were characterized by frequent use of oak-hardwood woodland and riparian cover types, and areas within 200 m of streams. These habitat use patterns may represent some degree of rigidity in habitat composition within fawning areas. However, there was no apparent selection of cover types or distance to stream classes within areas of concentrated use. Fawn survival to 6 months was low (0.15, 95% CI = 0.009 - 0.308) and was most similar to estimates from previous CWTD studies and unhunted white-tailed deer populations. Mortality was highest during approximately the first 1 - 1.5 months of life. There were no differences in survival to 6 months by sex, but females had significantly higher survival during the neonatal period than males. Survival time was unrelated to both movements and use of oak-hardwood woodland and riparian cover types. Predation was the most frequent (n = 8) cause of death, followed by abandonment (n = 5). Overall, adult CWTD were sedentary, dispersal movements were not readily apparent, and survival rates were within the range of rates reported for other white-tailed deer populations. Adult CWTD also exhibited a degree of specialization for riparian areas, and generalized use patterns for other cover types. CWTD fawns tended to use small areas, exhibited frequent use of oak-hardwood woodlands and areas near streams. Survival rates of adults and fawns may be suggestive of density dependent population responses. Title: Movements, habitat associations, and survival of Columbian white-tailed deer in western Oregon Author: Ricca, Mark A. Columbian white-tailed deer (Odocoileus virginianus leucurus, CWTD) are a geographically isolated and federally endangered sub-species for which there is a paucity of recent ecological information. I described and examined sources of variation in spatial use patterns (i.e. home range, areas of concentrated use, and movements), habitat associations, and survival for adult and fawn CWTD in Douglas County, Oregon. I radio-collared and monitored 64 adult CWTD and 36 newborn fawn CWTD from ca. December 1995 - September 1998. Locations for adults were obtained from September 1996 - December 1998. Locations for fawns were obtained from June - September, 1997 - 1998. Spatial use estimates for adults tended to be variable among deer. Mean 95% fixed kernel home range size was 74.5 ha (CV = 83%), while areas of concentrated use averaged 8.5 ha (CV = 93%). The sexes appeared to be partitioning space because males had larger home ranges, areas of concentrated use (which are analogous to core areas), and movements than females. Deer inhabiting human-influenced areas (suburban deer) consistently exhibited smaller movements and used less space than those away from human influence (wild deer). Mean home range size, area of concentrated use size, and distance between successive locations was generally greatest in fall and lowest in winter. Site fidelity to seasonal home ranges and areas of concentrated use was lowest between fall-winter and summer-fall. Unexpectedly, size of home ranges and areas of concentrated use were positively correlated with cover type heterogeneity. Annual adult survival rates averaged 0.73. Neither annual survival rates nor functions differed by sex or type. Survival over the entire 3 year study was low (0.39). Most deer died in winter from a combination of emaciation and disease and generally were in poor body condition. Oak-hardwood woodland, riparian, and oak-hardwood savanna shrub were the most frequently used cover types. On an annual basis, the majority of deer (31%) selected riparian areas. The frequency of selection of all non-riparian cover types was < 13%, as most deer either exhibited avoidance or 'neutral selection-avoidance' of these cover types. The probability of use for a particular patch was positively associated with proximity to a stream for 56% of all deer. However, the relative amount of edge within a particular patch had little effect on the odds of use. Patterns of use and selection tended to be similar between the sexes, but suburban deer used conifer and yard cover types more frequently than wild deer. Use and selection of cover types by deer did not significantly differ among seasons. CWTD also demonstrated higher use for more open cover types during crepuscular and nocturnal periods. Areas of concentrated use were random with respect to cover type composition, but were significantly associated with proximity ([less than or equal to] 200 m) to streams. Home ranges, areas of concentrated use, and movements of fawns were variable but tended to reflect their sedentary nature. Home range and area of concentrated use size were not correlated with percent coverage of oak-hardwood woodland, riparian, or shrub dominated cover types. Habitat use patterns were characterized by frequent use of oak-hardwood woodland and riparian cover types, and areas within 200 m of streams. These habitat use patterns may represent some degree of rigidity in habitat composition within fawning areas. However, there was no apparent selection of cover types or distance to stream classes within areas of concentrated use. Fawn survival to 6 months was low (0.15, 95% CI = 0.009 - 0.308) and was most similar to estimates from previous CWTD studies and unhunted white-tailed deer populations. Mortality was highest during approximately the first 1 - 1.5 months of life. There were no differences in survival to 6 months by sex, but females had significantly higher survival during the neonatal period than males. Survival time was unrelated to both movements and use of oak-hardwood woodland and riparian cover types. Predation was the most frequent (n = 8) cause of death, followed by abandonment (n = 5). Overall, adult CWTD were sedentary, dispersal movements were not readily apparent, and survival rates were within the range of rates reported for other white-tailed deer populations. Adult CWTD also exhibited a degree of specialization for riparian areas, and generalized use patterns for other cover types. CWTD fawns tended to use small areas, exhibited frequent use of oak-hardwood woodlands and areas near streams. Survival rates of adults and fawns may be suggestive of density dependent population responses. Close

• 37. [Article] Butterfly and flower community composition among prairie-oak ecosystem habitats in the Willamette Valley, Oregon

  Prairie-oak ecosystems in the Willamette Valley, Oregon have experienced habitat loss and degradation; most of these ecosystems are fragmented into smaller patches. Prairie-oak butterfly species, in the ...

  Citation × Citation Citation Abstract Copy Title: Butterfly and flower community composition among prairie-oak ecosystem habitats in the Willamette Valley, Oregon Author: Powers, Breanna F. Prairie-oak ecosystems in the Willamette Valley, Oregon have experienced habitat loss and degradation; most of these ecosystems are fragmented into smaller patches. Prairie-oak butterfly species, in the Willamette Valley, have decreased dramatically due to loss or degradation of habitat. More research is needed on sustaining the populations of butterflies in prairie-oak ecosystems. The purpose of my study was to examine the role prairie-oak habitats have in structuring butterfly communities in the Willamette Valley. My objectives were to: (1) assess how butterfly community structure and species composition (density, abundance, and species richness) varies along an oak canopy cover gradient in order to understand the role of habitat type in structuring butterfly communities in prairie-oak ecosystems; (2) characterize community composition of nectar resources and environmental variables known to be important for butterfly species. I also investigated temporal and structural relationships between butterfly and flower communities. I found that butterfly abundance and density were greater (p < 0.02) in prairies than in oak savannas or oak woodlands; however, species richness did not differ among habitats (p = 0.54). Ordination of prairie-oak habitats in butterfly species space with a joint plot overlay of environmental variables revealed several strong correlations; butterfly community structure was negatively correlated with litter and oak canopy cover and positively correlated to vegetation cover. The prairie, oak savanna, and oak woodland habitat types differed in nectar species community structure, though this difference was small. Non-native species were some of the most abundant flowers species found in all stands. Butterfly communities were positively related to flower communities. I detected significant seasonal patterns among the habitat types in butterfly and flower communities. Prairies appear to be the most important habitat for native butterfly populations compared to oak savanna and oak woodlands. Flowers were most prevalent in prairies and prairies had the highest percentage of native flower species; the prevalence of non-native flower species was greatest in oak woodlands. My study may represent a short-term community transition as a result of management or it may represent a more permanent community. Further study is needed to understand the effects of different management strategies for habitat restoration and the presence of non-native flower species on butterflies in prairie-oak ecosystems in the Willamette Valley. Title: Butterfly and flower community composition among prairie-oak ecosystem habitats in the Willamette Valley, Oregon Author: Powers, Breanna F. Prairie-oak ecosystems in the Willamette Valley, Oregon have experienced habitat loss and degradation; most of these ecosystems are fragmented into smaller patches. Prairie-oak butterfly species, in the Willamette Valley, have decreased dramatically due to loss or degradation of habitat. More research is needed on sustaining the populations of butterflies in prairie-oak ecosystems. The purpose of my study was to examine the role prairie-oak habitats have in structuring butterfly communities in the Willamette Valley. My objectives were to: (1) assess how butterfly community structure and species composition (density, abundance, and species richness) varies along an oak canopy cover gradient in order to understand the role of habitat type in structuring butterfly communities in prairie-oak ecosystems; (2) characterize community composition of nectar resources and environmental variables known to be important for butterfly species. I also investigated temporal and structural relationships between butterfly and flower communities. I found that butterfly abundance and density were greater (p < 0.02) in prairies than in oak savannas or oak woodlands; however, species richness did not differ among habitats (p = 0.54). Ordination of prairie-oak habitats in butterfly species space with a joint plot overlay of environmental variables revealed several strong correlations; butterfly community structure was negatively correlated with litter and oak canopy cover and positively correlated to vegetation cover. The prairie, oak savanna, and oak woodland habitat types differed in nectar species community structure, though this difference was small. Non-native species were some of the most abundant flowers species found in all stands. Butterfly communities were positively related to flower communities. I detected significant seasonal patterns among the habitat types in butterfly and flower communities. Prairies appear to be the most important habitat for native butterfly populations compared to oak savanna and oak woodlands. Flowers were most prevalent in prairies and prairies had the highest percentage of native flower species; the prevalence of non-native flower species was greatest in oak woodlands. My study may represent a short-term community transition as a result of management or it may represent a more permanent community. Further study is needed to understand the effects of different management strategies for habitat restoration and the presence of non-native flower species on butterflies in prairie-oak ecosystems in the Willamette Valley. Close

• 38. [Article] Oak Habitat Mapping and Monitoring in the Southern Eugene Ridgeline

  Submitted to the Undergraduate Library Research Award scholarship competition: 2010-2011. 63 p.

  Citation × Citation Citation Abstract Copy Title: Oak Habitat Mapping and Monitoring in the Southern Eugene Ridgeline Author: Bigalke, Brittany, Kimmy, Ertel, Liston, Matthew, Park, Alex, Russell, Alexandria, Silva, Matt Year: 2011 Submitted to the Undergraduate Library Research Award scholarship competition: 2010-2011. 63 p. Title: Oak Habitat Mapping and Monitoring in the Southern Eugene Ridgeline Author: Bigalke, Brittany, Kimmy, Ertel, Liston, Matthew, Park, Alex, Russell, Alexandria, Silva, Matt Year: 2011 Submitted to the Undergraduate Library Research Award scholarship competition: 2010-2011. 63 p. Close

• 39. [Article] Restoring rare native habitats in the Willamette valley

  A landowner's guide for restoring oak woodlands, wetlands, prairies, and bottomland hardwood and riparian forests. HUC: 170900. Bounding coordinates: West Bounding Coordinate: -123.769586; East Bounding ...

  Citation × Citation Citation Abstract Copy Title: Restoring rare native habitats in the Willamette valley Author: Campbell, Bruce H. A landowner's guide for restoring oak woodlands, wetlands, prairies, and bottomland hardwood and riparian forests. HUC: 170900. Bounding coordinates: West Bounding Coordinate: -123.769586; East Bounding Coordinate: -121.631074; North Bounding Coordinate: 45.941295; South Bounding Coordinate: 43.350360. Title: Restoring rare native habitats in the Willamette valley Author: Campbell, Bruce H. A landowner's guide for restoring oak woodlands, wetlands, prairies, and bottomland hardwood and riparian forests. HUC: 170900. Bounding coordinates: West Bounding Coordinate: -123.769586; East Bounding Coordinate: -121.631074; North Bounding Coordinate: 45.941295; South Bounding Coordinate: 43.350360. Close

• 40. [Article] Maxfield Creek density management upland habitat restoration final decision and decision rationale

  19 pp. Tables, maps. Township 10 South, Range 5 West, Sections 19 and 29, Township 10 South, Range 6 West, Section 22. Captured July 18, 2007.

  Citation × Citation Citation Abstract Copy Title: Maxfield Creek density management upland habitat restoration final decision and decision rationale Author: United States. Bureau of Land Management. Salem District Year: 2009, 2007 19 pp. Tables, maps. Township 10 South, Range 5 West, Sections 19 and 29, Township 10 South, Range 6 West, Section 22. Captured July 18, 2007. Title: Maxfield Creek density management upland habitat restoration final decision and decision rationale Author: United States. Bureau of Land Management. Salem District Year: 2009, 2007 19 pp. Tables, maps. Township 10 South, Range 5 West, Sections 19 and 29, Township 10 South, Range 6 West, Section 22. Captured July 18, 2007. Close