BIOL 2600- Final Exam Guide - Comprehensive Notes for the exam ( 39 pages long!)

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H. i. p. p. o: biggest threats to ecological systems; habitat destruction, invasive species, population, These threats can be mitigated via applied ecology. Relative abundance (ni): relative abundance of all individuals. Proportion of single species: pi: index of dispersion: id = variance / mean. Id < 1: uniform generated by intraspecific competition. Looks at a single species across different quadrats. Id = 1: random generated by distribution of habitat. Id > 1: clumped generated by interspecific competition or intraspecific aggregation: diversity indices *used when comparing to another site, dominance indices. Berger-parker (dbpc) = (1 - nmax) / ntot. Values range from 0 to 1 where 1 is highest diversity: information statistic indices. Ranges from 0 to lns where lns is highest diversity: wilson-shmida"s diversity (cid:894) -diversity) = (g(h) + l(h)) / 2a. G(h): number of new species gained after site 1. L(h): number of species lost by the last site. If > 0, there is greater species turnover (less diversity: rank abundance diagrams.

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