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- Land Use Law and Policy (2)
- Sustainable Land Use Planning (2)
- Agricultural land preservation (1)
- Agricultural land protection (1)
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- Behavioir (1)
- Canis latrans (1)
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Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
Can We Protect Agricultural Land And The Scenic Rural Landscape? The Spatial Effects Of Three Land Protection Strategies In The Eastern United States, Elizabeth Brabec, Chip Smith
Can We Protect Agricultural Land And The Scenic Rural Landscape? The Spatial Effects Of Three Land Protection Strategies In The Eastern United States, Elizabeth Brabec, Chip Smith
Elizabeth Brabec
In order to assess the efficacy of the three most common types of agricultural land conservation in the United States, this study analyzes the spatial and visual quality of a purchase of development rights program and two regulatory programs — cluster and the transfer of development rights. The study compares the effectiveness of programs that have been in place for periods of 6 to 18 years, surveying three different communities in the urban fringe: 1. the transfer of development rights program in Montgomery County, Maryland, in effect since 1981, 2. Riverhead, New York’s farmland development rights acquisition program, administered by …
Fragmentation, Impervious Surfaces And Water Quality: Quantifying The Effects Of Density And Spatial Arrangement, Elizabeth Brabec, Paul Richards, Stacey Schulte
Fragmentation, Impervious Surfaces And Water Quality: Quantifying The Effects Of Density And Spatial Arrangement, Elizabeth Brabec, Paul Richards, Stacey Schulte
Elizabeth Brabec
Impervious surfaces have for many years been recognized as an indicator of the intensity of the urban environment and, with the advent of urban sprawl, they have become a key issue in habitat health. In addition to the direct impacts to water quality, impervious surfaces fragment open space and habitat and are therefore a primary land use indicator of both water quality and ecological degradation. This paper develops an understanding of the land use planning implications of the interaction of impervious surfaces, water quality and the spatial form those surfaces take in a watershed. In order to clarify these relationships, …
Overview Of Transportation Impacts On Wildlife Movement And Populations, Scott D. Jackson
Overview Of Transportation Impacts On Wildlife Movement And Populations, Scott D. Jackson
Scott D. Jackson
As long linear features on the landscape, railways, roads and highways have impacts on wildlife and wildlife habitat that are disproportionate to the area of land that they occupy. In addition to impacts on habitat, highways and railways are sources of road mortality that threaten wildlife populations. Indirect effects on wildlife include reduced access to habitat due to road avoidance and human exploitation. Transportation infrastructure also undermines ecological processes through the fragmentation of wildlife populations, restriction of wildlife movements, and the disruption of gene flow and metapopulation dynamics. A variety of techniques have been used to mitigate the impacts of …
A Strategy For Mitigating Highway Impacts On Wildlife, Scott D. Jackson, C. R. Griffin
A Strategy For Mitigating Highway Impacts On Wildlife, Scott D. Jackson, C. R. Griffin
Scott D. Jackson
Animal passage systems can be designed to facilitate movement of certain wildlife species across highways. Where the conservation of a particular species or group of species is concerned, specifically designed mitigation has proven successful for a number of species. However, the effectiveness of highway mitigation systems has not been evaluated with respect to the vast majority of wildlife. It is probable that some species do not require specific design features while others will require careful attention to factors such as placement, size, substrate, noise, temperature, light and moisture. In areas where road and highway density is high, conservation of particular …
Soil Gas Transport Above A Jet Fuel/Solvent Spill At Plattsburgh Air Force Base, David Ostendorf, Alan J. Lutenegger, Shawn P. Kelley, Erich S. Hinlein
Soil Gas Transport Above A Jet Fuel/Solvent Spill At Plattsburgh Air Force Base, David Ostendorf, Alan J. Lutenegger, Shawn P. Kelley, Erich S. Hinlein
David Ostendorf
We calibrate a stoichiometrically coupled soil gas diffusion model with spatially resolved observations of oxygen, carbon dioxide, total hydrocarbon, and trichloroethylene vapor concentrations in the unsaturated zone above a weathered jet fuel/solvent spill at Plattsburgh Air Force Base in upstate New York. The calibration suggests that aerobic microorganisms in the capillary fringe degrade jet fuel vapor at a steady rate of 9.5 μg hydrocarbons (m−2 s−1). The solvent does not degrade in the fringe, however, and the model and data estimate a steady evaporation rate of 1.2×10−2 μg TCE (m−2 s−1). Barometric pumping slightly alters the steady concentration profile at …
Behavior And Passage Of Silver-Phase American Eels, Anguilla Rostrata (Lesueur), At A Small Hydroelectric Facility, Alex Haro, Ted Castro-Santos, Jacques Boubee
Behavior And Passage Of Silver-Phase American Eels, Anguilla Rostrata (Lesueur), At A Small Hydroelectric Facility, Alex Haro, Ted Castro-Santos, Jacques Boubee
Alexander Haro
Downstream migrant eels were monitored near a small (51 MW) hydroelectric facility on the Connecticut River (Massachusetts, USA) for two seasons using acoustic and radio telemetry. Eels frequently made several attempts over periods of one to several days to pass the station. Diel activity of eels was variable, although most movements occurred at night. Eels occupied a variety of depths in the forebay area, but spent the greater proportion of time at or near the bottom (10 m), occasionally venturing to the surface. Horizontal movements usually spanned across the entire width of the forebay. There was no significant relationship between …
Competition And Intraguild Predation Among Three Sympatric Carnivores, Jose M. Fedriani, Todd K. Fuller, Raymond M. Sauvajot, Eric C. York
Competition And Intraguild Predation Among Three Sympatric Carnivores, Jose M. Fedriani, Todd K. Fuller, Raymond M. Sauvajot, Eric C. York
Environmental Conservation Faculty Publication Series
We examined the relative roles of dominance in agonistic interactions and energetic constraints related to body size in determining local abundances of coyotes (Canis latrans, 8–20 kg), gray foxes (Urocyon cinereoargenteus, 3–5 kg) and bobcats (Felis rufus, 5–15 kg) at three study sites (hereafter referred to as NP, CP, and SP) in the Santa Monica Mountains of California. We hypothesized that the largest and behaviorally dominant species, the coyote, would exploit a wider range of resources (i.e., a higher number of habitat and/or food types) and, consequently, would occur in higher density than the other two carnivores. We evaluated our …