ENVS 2420 Lecture Notes - Lecture 1: Biocoenosis, Evolutionary Ecology, Conservation Biology

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Ecology --> the scientific study of the relationships btwn organisms and their environment. Environment --> all of the external factors that influence and organism"s growth/survival/reproduction. Includes both biotic/abiotic factors: ultimate goal of organisms is to reproduce and pass on their genes to the next gen, habitat --> a physical location in time and space. Ecology is about understanding interactions between organisms and organisms and their environment (habitat + community of organisms) ad understanding how these interactions influence eachother. Ecosystem --> includes biotic community and it"s abiotic environment: hierarchy; individual --> population (one species) --> community (multiple species)--> ecosystem (species + abiotic factors) --> landscape --> biome (large geographical area)--> bioshpere. Species at risk act in ca allows legal protection to be given to units of biological diversity below the species level (includes subspecies, varieties or geographically/genetically distinct pop"ns); those protected should be discrete and evolutionary significant in the taxonomy.

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