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Transcript
-WHAT ARE THE INTERACTIONS
BETWEEN THE LEVEL OF
BIOLOGICAL COMMUNITY.
BIOLOGICAL INTERACTIONS
are the effects that the organisms in a community have on one another. In the
natural world no organism exists in absolute isolation, and thus every
organism must interact with the environment and other organisms. An
organism's interactions with its environment are fundamental to the survival
of that organism and the functioning of the ecosystem as a whole.
IN ECOLOGY,
biological interactions can involve individuals of the same species
(intraspecific interactions) or individuals of different species (interspecific
interactions). These can be further classified by either the mechanism of the
interaction or the strength, duration and direction of their effects.
INTERACTIONS CATEGORIZED
BY EFFECT
Terms that explicitly indicate the quality of benefit or harm in terms of
fitness experienced by participants in an interaction. There are six possible
combinations, ranging from mutually beneficial through neutral to mutually
harmful interactions. The level of benefit or harm is continuous and not
discrete, so a particular interaction may have a range from trivially harmful
through to deadly, for example. It is important to note that these interactions
are not always static. In many cases, two species will interact differently under
different conditions. This is particularly true in, but not limited to, cases where
species have multiple, drastically different life stages.
COMPETITION
Competition is a mutually detrimental interaction between individuals,
populations or species, but rarely between clades.
AMENSALISM
Amensalism is an interaction where an organism inflicts harm to another
organism without any costs or benefits received by itself
This is not a bee, but a syrphid fly, a Batesian mimic.