grazing pressure

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• Conservation grazing — is the use of semi feral or domesticated grazing livestock to maintain and increase the biodiversity of natural or semi natural grasslands, heathlands, wood pasture, wetlands and many other habitats.[1][2] Conservation grazing is generally less… …   Wikipedia

• community ecology — Introduction       study of the organization and functioning of communities (community), which are assemblages of interacting populations of the species living within a particular area or habitat.       As populations of species interact with one …   Universalium

• Queensland — /kweenz land , leuhnd/, n. a state in NE Australia. 2,295,123; 670,500 sq. mi. (1,736,595 sq. km). Cap.: Brisbane. * * * State (pop., 2001: 3,635,121), northeastern Australia. Bounded on the north by the Pacific Ocean and the Great Barrier Reef,… …   Universalium

• Feral goat — is the name given to the domestic goat ( Capra aegagrus hircus ) when it has become established in the wild. Feral goats occur in Australia, New Zealand,Ireland, Great Britain, the Galapagos and in many other parts of the world. When feral goats… …   Wikipedia

• American bison — B. b. bison Alternate image Historic drawing …   Wikipedia

• Savanna — A savanna or savannah is a tropical or subtropical grassland or woodland ecosystem. [ [http://www.britannica.com/EBchecked/topic/242157/grass savanna grass savanna] , Britannica Online Encyclopedia] Savannas are characterised by the trees being… …   Wikipedia

• Operation Wallacea — logo. Operation Wallacea (known as Opwall) is an organisation funded by tuition fees that runs a series of biological and conservation management research programmes operating in remote locations across the world. These expeditions are designed… …   Wikipedia

• Appalachian balds — In the Appalachian Mountains of the eastern United States, balds are mountain summits or crests covered primarily by thick vegetation of native grasses or shrubs occurring in areas where heavy forest growth would be expected. Balds are found… …   Wikipedia

• savanna — /seuh van euh/, n. 1. a plain characterized by coarse grasses and scattered tree growth, esp. on the margins of the tropics where the rainfall is seasonal, as in eastern Africa. 2. grassland region with scattered trees, grading into either open… …   Universalium

• American Bison — Taxobox name = American Bison status = LR/cd | status system = IUCN2.3 status ref = IUCN2006|assessors=Bison Specialist Group|year=1996|id=2815|title=Bison bison|downloaded=11 May 2006 ] image caption = regnum = Animalia phylum = Chordata classis …   Wikipedia

• Critical Depth — This article is about the Oceanography term. For the video game, see Critical Depth (video game). In biological oceanography, Critical Depth is defined as a hypothesized surface mixing depth at which phytoplankton growth is precisely matched by… …   Wikipedia