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trophic structure

См. также в других словарях:

  • Trophic cascade — Trophic cascades occur when predators in a food chain suppress the abundance of their prey, thereby releasing the next lower trophic level from predation (or herbivory if the intermediate trophic level is an herbivore). For example, if the… …   Wikipedia

  • trophic cascade — a disruption of the food chain by the removal of a key species, often a predator, ramifying through the ecosystem allowing prey to flourish and with a marked effect even on numbers of zooplankton near the base of the food chain. This alters the… …   Dictionary of ichthyology

  • Non-trophic networks — Any action or influence that species have on each other is considered a biological interaction. These interactions between species can be considered in several ways. One such way is to depict interactions in the form of a network, which… …   Wikipedia

  • Food web — A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological community. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the …   Wikipedia

  • Ecology — For other uses, see Ecology (disambiguation). Ecology …   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

  • Cross-boundary subsidy — Alaskan boreal forest in Yukon National Wildlife Refuge Cross boundary subsidies are caused by organisms or materials that cross or traverse habitat patch boundaries, subsidizing the resident populations. The transferred organisms and materials… …   Wikipedia

  • Cross-boundary subsidies — are caused by organisms or materials that cross or traverse habitat patch boundaries, subsidizing the resident populations. The transferred organisms and materials may provide additional predators, prey, or nutrients to resident species, which… …   Wikipedia

  • Mesopredator release hypothesis — Raccoons (Procyon lotor) and skunks (Mephitis mephitis) are mesopredators, here they share cat food in a suburban backyard. The mesopredator release hypothesis is a relatively new hypothesis from 1988[1] which describes the …   Wikipedia

  • List of Cumacea literature — Extensive literature list on Cumaceans. Contents: Top · 0–9 · A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A …   Wikipedia

  • Ecosystem — An ecosystem is a natural unit consisting of all plants, animals and micro organisms(biotic factors) in an area functioning together with all of the non living physical (abiotic) factors of the environment.Christopherson, RW (1996) Geosystems: An …   Wikipedia

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