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SlideshowReport

Niche: An individual’s ecological role

Description
Interactions among species are the threads in the fabric of communities, holding them together and determining their nature

Ecologists have organized species interactions into several fundamental categories

Competition = relationship where multiple organisms seek the same limited resources:
Food, Water, Space, Shelter, Mates, Sunlight

Amensalism = variation of a competitive relationship, in which one organism is harmed and the other is apparently unaffected
Difficult to pin down

Intraspecific competition = among members of the same species
High population density = increased competition
Interspecific competition = among members of two or more species
Can lead to either competitive exclusion or to species coexistence
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