منابع مشابه
Exotic invasion.
Research The U.S. Clean Air Act designates hazardous air pollutants (HAPs) as those that " may reasonably be anticipated to be carcinogenic, mutagenic " (Clean Air Act Amendments 1990), and exhibit other adverse health effects. Effective reduction of exposures to HAPs requires determining the compounds, exposure pathways, and sources that contribute the most to human health risk. Many prior ris...
متن کاملExotic Mammals Disperse Exotic Fungi That Promote Invasion by Exotic Trees
Biological invasions are often complex phenomena because many factors influence their outcome. One key aspect is how non-natives interact with the local biota. Interaction with local species may be especially important for exotic species that require an obligatory mutualist, such as Pinaceae species that need ectomycorrhizal (EM) fungi. EM fungi and seeds of Pinaceae disperse independently, so ...
متن کاملNull Models of Exotic Invasion and Scale-dependent Patterns of Native and Exotic Species Richness
Surveys of natural habitats often indicate that native and exotic species richness are positively correlated at large scales and negatively correlated at small scales. The small-scale relationship is often presented as evidence that native richness can repel invasion or conversely that exotic invasions can reduce native diversity. The larger scale pattern has been interpreted as evidence of the...
متن کاملPotential selection in native grass populations by exotic invasion.
Ecological impacts of invasive plant species are well documented, but the genetic response of native species to invasive dominance has been often overlooked. Invasive plants can drastically alter site conditions where they reach dominance, potentially exerting novel selective pressures on persistent native plant populations. Do native plant populations in old exotic invasions show evidence of s...
متن کاملLitter feedbacks, evolutionary change and exotic plant invasion
Maarten B. Eppinga*, Matthew A. Kaproth, Alexandra R. Collins and Jane Molofsky Department of Plant Biology, University of Vermont, 63 Carrigan Drive, Burlington, VT 05405, USA; Department of Environmental Sciences, Copernicus Institute of Sustainable Development, Faculty of Geosciences, Utrecht University, P.O. Box 80115, 3508 TC Utrecht, The Netherlands; and Department of Biology, Unit of Eco...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1997
ISSN: 0091-6765
DOI: 10.2307/3433603