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• 1. [Article] Wind farm potential is higher in prime habitat for uncommon soil crust lichens

  This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Springer. The published article can be found at: http://link.springer.com/journal/13717.

  Citation × Citation Citation Abstract Copy Title: Wind farm potential is higher in prime habitat for uncommon soil crust lichens Author: McCune, Myrica, McCune, Bruce, Root, Heather T. This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Springer. The published article can be found at: http://link.springer.com/journal/13717. Title: Wind farm potential is higher in prime habitat for uncommon soil crust lichens Author: McCune, Myrica, McCune, Bruce, Root, Heather T. This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Springer. The published article can be found at: http://link.springer.com/journal/13717. Close

• 2. [Article] Agricultural impacts on amphibian survival, growth, and distributions

  The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater ...

  Citation × Citation Citation Abstract Copy Title: Agricultural impacts on amphibian survival, growth, and distributions Author: Baker, Nick J. The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss, introduced species, global climate change, disease, and chemical contaminants; most species declines are not a function of only one factor, but a result of interacting factors and synergistic impacts. I analyzed the impact of field conservation efforts employed in the Calapooia watershed, located in the central Willamette Valley in Oregon, on amphibian species diversity using Simpson's Diversity Index. In the Calapooia watershed the value of this index increased when conservation efforts, such as retaining crop residue and riparian buffers, were present. This suggests that species diversity increased with increased conservation effort at the field level. In addition, I found species-specific habitat associations in the Calapooia watershed. Long-toed salamanders (Ambystoma macrodactylum) were associated with stream channel cover. Rough-skinned newts (Taricha granulosa) and Red-legged frogs (Rana aurora) showed similar relationships to pH, bank width, depth, and riparian habitat where as Pacific treefrogs (Pseudacris regilla) showed strong relationships to increased structural heterogeneity, increased distance to nearest agricultural field, and increased human disturbance. These results indicate that conservation efforts can impact amphibian biodiversity, and that there are species-specific habitat associations in the Calapooia watershed. My third chapter looked at pesticides and fertilizers, which have been shown to negatively affect many species of amphibians. I used meta-analytic techniques to quantify the lethal and sub-lethal effects of pesticides and fertilizers on amphibians in an effort to review the published work to date. I found that, in general, pesticides and fertilizers negatively affect amphibians by reducing both survival and growth. Pesticide and fertilizer chemical classes showed differences in their impacts on amphibians: inorganic fertilizers, organophosphates, phosphonoglycines, and triazines negatively affected amphibian survival, while, organophosphates and triazines negatively affected amphibian growth. Title: Agricultural impacts on amphibian survival, growth, and distributions Author: Baker, Nick J. The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss, introduced species, global climate change, disease, and chemical contaminants; most species declines are not a function of only one factor, but a result of interacting factors and synergistic impacts. I analyzed the impact of field conservation efforts employed in the Calapooia watershed, located in the central Willamette Valley in Oregon, on amphibian species diversity using Simpson's Diversity Index. In the Calapooia watershed the value of this index increased when conservation efforts, such as retaining crop residue and riparian buffers, were present. This suggests that species diversity increased with increased conservation effort at the field level. In addition, I found species-specific habitat associations in the Calapooia watershed. Long-toed salamanders (Ambystoma macrodactylum) were associated with stream channel cover. Rough-skinned newts (Taricha granulosa) and Red-legged frogs (Rana aurora) showed similar relationships to pH, bank width, depth, and riparian habitat where as Pacific treefrogs (Pseudacris regilla) showed strong relationships to increased structural heterogeneity, increased distance to nearest agricultural field, and increased human disturbance. These results indicate that conservation efforts can impact amphibian biodiversity, and that there are species-specific habitat associations in the Calapooia watershed. My third chapter looked at pesticides and fertilizers, which have been shown to negatively affect many species of amphibians. I used meta-analytic techniques to quantify the lethal and sub-lethal effects of pesticides and fertilizers on amphibians in an effort to review the published work to date. I found that, in general, pesticides and fertilizers negatively affect amphibians by reducing both survival and growth. Pesticide and fertilizer chemical classes showed differences in their impacts on amphibians: inorganic fertilizers, organophosphates, phosphonoglycines, and triazines negatively affected amphibian survival, while, organophosphates and triazines negatively affected amphibian growth. Close

• 3. [Article] Bird use of revetted riverbanks in the Willamette Valley

  Over 115 miles of rock revetments that serve to protect river banks have been constructed in the Willamette Basin. In this study the spring and summer bird use of Willamette Basin revetments is examined. ...

  Citation × Citation Citation Abstract Copy Title: Bird use of revetted riverbanks in the Willamette Valley Author: Perry, Clifford Brian Year: 1977 Over 115 miles of rock revetments that serve to protect river banks have been constructed in the Willamette Basin. In this study the spring and summer bird use of Willamette Basin revetments is examined. Revetments that had not been recently cleared of most woody vegetation and blackberries were found to have significantly greater total and breeding bird use than cleared revetments. Possible factors affecting bird use, such as vegetation on revetments and vegetation adjacent to revetments are examined using linear regression analysis. The results of this study are compared with results of previous work in riparian forests along the Columbia River. It is concluded that revetments represent significant avian habitat, especially for "edge species," and that present maintenance practices involving removal of vegetation adversely affect bird use. Title: Bird use of revetted riverbanks in the Willamette Valley Author: Perry, Clifford Brian Year: 1977 Over 115 miles of rock revetments that serve to protect river banks have been constructed in the Willamette Basin. In this study the spring and summer bird use of Willamette Basin revetments is examined. Revetments that had not been recently cleared of most woody vegetation and blackberries were found to have significantly greater total and breeding bird use than cleared revetments. Possible factors affecting bird use, such as vegetation on revetments and vegetation adjacent to revetments are examined using linear regression analysis. The results of this study are compared with results of previous work in riparian forests along the Columbia River. It is concluded that revetments represent significant avian habitat, especially for "edge species," and that present maintenance practices involving removal of vegetation adversely affect bird use. Close

• 4. [Article] Impacts of Agriculture on the Inland Capture Fisheries in the Mekong Delta

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Impacts of Agriculture on the Inland Capture Fisheries in the Mekong Delta Author: Vu, Vi An, Ngwenya, Elkana Abstract only. Title: Impacts of Agriculture on the Inland Capture Fisheries in the Mekong Delta Author: Vu, Vi An, Ngwenya, Elkana Abstract only. Close

• 5. [Article] HOW DO CONSERVATION LAND TRUSTS COME TO EMBRACE AGRICULTURE? A CASE STUDY FROM OREGON

  In part because of the state’s unique land use system, Oregon’s land trusts have largely focused their efforts on the protection of lands with wildlife habitat values, rather than productive agricultural ...

  Citation × Citation Citation Abstract Copy Title: HOW DO CONSERVATION LAND TRUSTS COME TO EMBRACE AGRICULTURE? A CASE STUDY FROM OREGON Author: Pruch, Jared Year: 2017 In part because of the state’s unique land use system, Oregon’s land trusts have largely focused their efforts on the protection of lands with wildlife habitat values, rather than productive agricultural land. And yet a confluence of contemporary trends – including population growth, aging farmer-landowners, and a growing regard for the conservation values embedded in well-stewarded farmland – are causing some land trusts to re-evaluate their conservation priorities. By conducting in-depth interviews with land trust staff and board members, farmers and ranchers, and land use advocates around the state, my work seeks to make transparent the network of influences underlying this shift. Making use of nonprofit management theory, I argue that land trusts change their conservation priorities through a combination of environmental assessment and managerial vision. Several predictors – willingness to innovate, agricultural representation within the organization, and community priorities – increase the likelihood that land trusts will include farmland as a conservation priority. Title: HOW DO CONSERVATION LAND TRUSTS COME TO EMBRACE AGRICULTURE? A CASE STUDY FROM OREGON Author: Pruch, Jared Year: 2017 In part because of the state’s unique land use system, Oregon’s land trusts have largely focused their efforts on the protection of lands with wildlife habitat values, rather than productive agricultural land. And yet a confluence of contemporary trends – including population growth, aging farmer-landowners, and a growing regard for the conservation values embedded in well-stewarded farmland – are causing some land trusts to re-evaluate their conservation priorities. By conducting in-depth interviews with land trust staff and board members, farmers and ranchers, and land use advocates around the state, my work seeks to make transparent the network of influences underlying this shift. Making use of nonprofit management theory, I argue that land trusts change their conservation priorities through a combination of environmental assessment and managerial vision. Several predictors – willingness to innovate, agricultural representation within the organization, and community priorities – increase the likelihood that land trusts will include farmland as a conservation priority. Close