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Displaying 946 - 950 of 1605Canada Warbler use of harvested stands following timber management in the southern portion of their range
We evaluated Canada Warbler (Cardellina canadensis) responses to changes in habitat characteristics (landscape metrics, landcover, and microhabitat features) at multiple spatial scales resulting from timber harvests (clear-cut, heavy partial, and light partial) between 1996 and 2009. Relative abundance of Canada Warblers decreased over time on our West Virginia study area (Wildlife and Ecosystem Research Forest) and within the Appalachian Bird Conservation Region.
Land, landlords and sustainable livelihoods: The impact of agrarian reform on a coconut hacienda in the Philippines
Agrarian reform has been a key theme on the development agenda of many countries in the Global South for decades. Whilst such interventions are often pursued for political goals and in the interests of empowerment, there is often a mismatch between these goals and the actual outcomes achieved. Within this context, this study investigates the impacts of agrarian reform in Del Rosario, a former coconut hacienda in the Philippines.
Land use scenario development as a tool for watershed management within the Rio Mannu Basin
The Rio Mannu River Basin (Sardinia, Italy) is undergoing a process of agricultural intensification. Like many Mediterranean areas, this basin is characterized by water shortages and diffuse pollution from agricultural sources. Hence the objective of this study was to develop possible land use and land management scenarios that could constitute an alternative to the current watershed management.
Eliciting expert knowledge to inform landscape modeling of conservation scenarios
Conservation and land management organizations such as The Nature Conservancy are developing strategies to distribute conservation efforts over larger areas. Relative to fee-simple protection efforts, strategies that allow ecologically sustainable timber harvest and recreation activities, such as working forest conservation easements, should yield greater socioeconomic benefits (ecosystem services) with less investment per area without significantly compromising the conservation of biodiversity (ecological targets).
Epistemic uncertainty in predicting shorebird biogeography affected by sea-level rise
Accurate spatio-temporal predictions of land-cover are fundamentally important for assessing geomorphological and ecological patterns and processes. This study quantifies the epistemic uncertainty in the species distribution modeling, which is generated by spatio-temporal gaps between the biogeographical data, model selection and model complexity. Epistemic uncertainty is generally given by the sum of subjective and objective uncertainty. The subjective uncertainty generated by the modeler-choice in the manipulation of the environmental variables was analyzed.