I evaluated the response of the federally listed endangered plant species Bradshaw's desert parsley (Lomatium bradshawii) to livestock grazing and small mammal depredation at Oak Creek, Linn County, Oregon, 1997-1998. I established six study blocks (three each in wooded and herbaceous pastures) with plots in each block randomly assigned to...
Groundwater tables are dropping quickly in many regions of the world. Central Asia is an arid region where groundwater abstraction rates often exceed recharge rates. The Pretashkent Aquifer is a crucial transboundary groundwater resource for the Republics of Kazakhstan and Uzbekistan. Both countries rely on the aquifer as a primary...
Plantago ovata Forssk. (Plantaginaceae) is a winter annual species which, in North America, inhabits desert and Mediterranean habitats of the southwest United States, northwest Mexico and the Channel Islands of California and Mexico. In the eastern hemisphere P. ovata inhabits desert regions ranging from the Canary Islands, across northern Africa...
Infrageneric classification in Ribes has previously relied on a few, often
conflicting, morphological markers, such as spines, glands, and inflorescence
morphology. Suggestions that hybridization drives the evolution of the genus have
not been tested using phylogenetic methods. To assess the validity of infrageneric
classifications and the importance of hybridization to...
Collaboration between scientists and decision makers is a critical element in mobilizing science into action. Likewise, the United Nations defines collaboration between scientists and policymakers as a requisite component in the process of sustainable development. Despite the UN sustainability movement beginning in 1983, scientists may still be frustrated by their...
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Aaron T. Wolf
Collaboration between scientists and decision makers is a critical element
Globally, access to safe, reliable drinking water sources is a major challenge of this generation. Protected sources of drinking water provide communities with a sustainable, vital resource, yet many public water suppliers lack legal authority over their source water protection (SWP) area, especially in surface water systems. Absence of legal...
Over 470 dams have been removed in the United States, and a significant increase in dam removals has
occurred since the early 1990s. The aging of dams is often cited as the primary factor influencing removals;
as dams surpass their functional life span, safety hazards, economic costs, and environmental concerns...
This research is conducted to contribute to the enhancement of the transboundary water cooperation in the Euphrates and Tigris Basin. The main research questions answered are: “Is operationality of the transboundary water cooperation adequate to address the problems of the ET Basin and to reach sustainable development goals that are...
A critical link is missing between food production and food consumption. This gap can be overcome by encouraging the production of staple food crops and emphasizing regional and community consumption of locally produced food. In order to re-establish local food security in the Willamette Valley, it is imperative that essential...
Dams are often promoted as a tool to reduce poverty and spur economic development. Dam construction worldwide, and particularly in China, which has built nearly half the world's large dams since 1949, remains contentious due to the potential for negative environmental and socioeconomic impacts. Despite numerous case studies, there is...