Land managers of natural areas are under pressure to balance demands for increased recreation access with protection of the natural resource. Unintended dispersal of seeds by visitors to natural areas has high potential for weedy plant invasions, with initial seed attachment an important step in...

Many U.S. national parks are already at the extreme warm end of their historical temperature distributions. With rapidly warming conditions, park resource management will be enhanced by information on seasonality of climate that supports adjustments in the timing of activities such as treating...

The ecological, social, institutional and political dimensions of environmental problems encompass spatial and temporal scales that exceed the majority of scientific research projects. An alternative that has increased over time throughout the world is the Long-Term Ecological Research (LTER) or...

The ever-increasing feral horse population in the United States is creating both challenges and opportunities that affect science, the environment, and society. Although the presence of feral horses is well-known, the implications of these rapidly growing populations are not fully appreciated nor...

Native vegetation around the world is under threat from historical and ongoing clearance, overgrazing, invasive species, increasing soil and water salinity, altered fire regimes, poor land management and other factors, resulting in a degradation of natural ecosystem services. Consequently,...

Novel ecosystems result from a combination of altered historical abiotic regimes and new species assemblages. In freshwater systems, novel environmental conditions often result from large-scale changes to hydrological connectivity as well as species invasions. Novel environmental conditions may...

Prosopis was introduced to Baringo, Kenya in the early 1980s for provision of fuelwood and for controlling desertification through the Fuelwood Afforestation Extension Project (FAEP). Since then, Prosopis has hybridized and spread throughout the region. Prosopis has negative ecological impacts on...

This proceedings contains 13 papers discussing the effects of climate change on the world's oceans. In particular, the papers cover the future ocean, natural resources, biodiversity effects, biological invasion, and ocean noise.

The Adirondack Park contains over 6 million acres and over 3000 lakes. Approximately 43% of the Park is publically owned and protected to remain "forever wild". Despite regulatory measures aimed at protecting the natural resources of the Adirondacks, surface water quality is threatened by acid and...

Economic evaluations of invasive species are essential for providing comprehensive assessments of the benefits and costs of publicly-funded management activities, yet many previous investigations have focused narrowly on expenditures to control spread and infestation. We use hedonic modeling to...