نتایج جستجو برای: native species
تعداد نتایج: 632890 فیلتر نتایج به سال:
introduced into the United States, and black wattle (Acacia mearnsii), a species native to Australia that was introduced to South Africa. In response to criticism from environmental and natural resource conservation communities (e.g., Olson and Knopf 19867), many US federal agencies and nongovernmental organizations turned from nonindigenous species to species native to North America for use in...
Quantitative comparisons of distribution and abundance of exotic species in their native and non-native ranges represent a fi rst step when studying invaders. However, this approach is rarely applied particularly to tree species. Using biogeographical contrasts coupled with regional dispersal surveys, we assessed whether two exotic maple tree species, Acer negundo and Acer platanoides , can be ...
biological diversity and species richness have been declined throughout the world as a result of human activities. measuring species richness is important in rangeland conservation to evaluate the status and trends of native plant species, detecting non-native species invasion and monitoring rare species. however, heterogeneity in plant distribution makes inventories difficult. in this study tw...
The carbon sequestaration by plants and soil is one of the easiest and the most econimical ways to reduce atmosphere carbon. This study was conducted on the planted land use of Fraxinus rotundifolia, Cupressus arizonica, obinia pseudoacacia L., Elaeagnus angustifolia, Cedrus libani, and Quercus brantii (persica) in the Arjan plain of Fars province. For each plantation land use, there were three...
The island of Newfoundland is unique because it has as many non-native terrestrial mammals as native ones. The impacts of non-native species on native flora and fauna can be profound and invasive species have been identified as one of the primary drivers of species extinction. Few studies, however, have investigated the effects of a non-native species assemblage on community and ecosystem prope...
© The Ecological Society of America www.frontiersinecology.org B invasions, which join synergistically with habitat loss and fragmentation, climate change, natural resource overexploitation, pollution, and a multitude of other anthropogenic factors, are recognized as a leading threat to freshwater, marine, and terrestrial systems. The common notion of an invasive species is one that has become ...
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