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...Ecology and sustainability study notes module introduction to what is the difference between abiotic biotic factors a factor any living component that affects population of another organism or environment while an non influences ecosystem organisms in it are some examples availability food resources competition predation physiology mutualism symbiosis commensalism parasitism succession light sunlight temperature water topography rainfall geology ph ecological niche role position species has its how meets needs for shelter survives reproduces way fits into community levels organisation fundamental units populations communities e g snow moose morphs group individuals one place at time specific australia wood duck ecosystems assemblages occurring together space includes multiple small mammal all mammals occur particular area site reef landscapes spatially connected parts river catchment biomes large naturally flora fauna occupying major habitat distinct region s home things suited climate...