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Deforestation
Deforestation is the conversion of forested areas to non-forest land use such as arable land, urban use, logged area or wasteland. Historically, this meant conversion to grassland or to its ... > more -
Water hyacinth
The seven species of water hyacinths comprise the genus Eichhornia of free-floating perennial aquatic plants native to tropical South America. One of the fastest growing plants known, water hyacinth ... > more -
Trophic level
In ecology, the trophic level is the position that an organism occupies in a food chain - what it eats, and what eats it. Wildlife biologists look at a natural "economy of energy" that ultimately ... > more -
Columbian White-tailed Deer
The Columbian white-tailed deer is one of 30 subspecies of the white-tailed deer in North America, and one of two subspecies found in Oregon, the other being the Idaho white-tailed ... > more -
Biodiversity hotspot
A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction. The term biodiversity hotspot specifically refers to 25 ... > more -
Old growth forest
Old growth forest, sometimes called late seral forest or ancient forest or primary forest is an area of forest that has attained great age and exhibits unique biological features. Old growth forests ... > more
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