keystone predator
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Keystone species — A keystone species is a species that has a disproportionate effect on its environment relative to its abundancecite journal author=Paine, R.T. year=1995 title=A Conversation on Refining the Concept of Keystone Species journal=Conservation Biology … Wikipedia
Ecological extinction — Types and definitions of extinctions = Estes, Duggins, and Rathburn (1989) recognize three distinct types of extinction.Global extinction is defined as “the ubiquitous disappearance of a species. [Estes et al. The ecology of extinctions in kelp… … Wikipedia
Jaguar — For other uses, see Jaguar (disambiguation). Jaguar [1] … Wikipedia
Interspecific competition — Interspecific competition, in ecology, is a form of competition in which individuals of different species compete for the same resource in an ecosystem (e.g. food or living space). The other form of competition is intraspecific competition, which … Wikipedia
Grizzly bear — For other uses, see Grizzly (disambiguation) and Grizzly bear (disambiguation). Grizzly bear Conservation status … Wikipedia
Top-down and bottom-up design — Top down and bottom up are strategies of information processing and knowledge ordering, mostly involving software, but also other humanistic and scientific theories (see systemics). In practice, they can be seen as a style of thinking and… … Wikipedia
Nahrungskette — bezeichnet in Ökologie und Ökotoxikologie die linearen energetischen und stofflichen Beziehungen zwischen verschiedenen Organismen oder Organismengruppen, von denen die einen Nahrungsgrundlage der anderen sind. Abgeleitet vom griechischen Verb… … Deutsch Wikipedia
Leopard Seal — Taxobox name = Leopard SealMSW3 Wozencraft | pages = |id=14001042] status = LR/lc status system = IUCN2.3 status ref = IUCN2006|assessors=Seal Specialist Group|year=1996|id=10340|title=Hydrurga leptonyx|downloaded=12 May 2006] image width = 250px … Wikipedia
Russian Wolf — Taxobox name = Russian Wolf status = LC image width = 200px regnum = Animalia phylum = Chordata classis = Mammalia ordo = Carnivora familia = Canidae genus = Canis species = C. lupus subspecies = C. l. communis trinomial = Canis lupus communis… … Wikipedia
Sarracenia purpurea — Purple pitcher plant Flowering Sarracenia purpurea, Newfoundland Scientific classification Kingdom: Plant … Wikipedia
