Filters: Tags: Ecology Abstracts (X)12,869 results (84ms)
Reach- and Watershed-Scale Associations of Crayfish within an Area of Varying Agricultural Impact in West-Central Indiana
We studied the associations of crayfish with reach-scale instream habitat and water quality variables and watershed-scale variables of riparian and watershed land cover, runoff, impervious surfaces, and hydrologic soil type in west-central Indiana. Crayfish assemblage was measured by abundance, species richness, and diversity (Shannon's H) at 180 sites. The western portion of the study area, within the Interior River Lowland ecoregion, has been heavily impacted by agriculture, while the eastern portion, within the Interior Plateau ecoregion, is more heavily wooded and less impacted. The ability of variables at each spatial extent to predict crayfish assemblage was assessed using multiple linear regression analysis....
Biomass response mechanisms of understory species the first year after prescribed burning in an Arizona ponderosa-pine community.
Two views of the impacts of poaching on bighorn sheep in the upper Yellowstone Valley, Montana, USA.
Hypothesis concerning the causes of the disappearance of boreal toads from the mountains of Colorado.
Effects of competition from young northern hardwoods on red pine seedling growth, nutrient use efficiency, and leaf morphology.
Capital theory and the measurement of sustainable development: An indicator of "weak" sustainability
Relationships between soil properties and vegetation at the Northern Experimental Forest, Howland, Maine
Viability analysis in biological evaluations: Concepts of population viability analysis, biological population, and ecological scale
Net photosynthesis as a function of carbon dioxide concentration in pine trees grown at ambient and elevated CO sub(2)
Upland heather moorland in Great Britain: A review of international importance, vegetation change and some objectives for nature conservation
Importance of multiple scale analysis for understanding distribution and for management of an agricultural bird pest