Study Guide Chapter 3 Flashcards
four characteristics of a population
population density, population range, population limiting factors, dispersion
optimum zone
where a species thrives best
zone of physiological stress
where species is uncomfortable but still alive
zone of intolerance
where species will die
genetic diversity
the genes in a population
species diversity
the number of different species and their relative abundance in a biological community
ecosystem diversity
the variety of ecosystems in the biosphere
dangers of introducing a nonnative species to environment
their population will drastically increase, they would limit resources, the native species will die
biological magnification
the increase in concentration of toxic substances in higher trophic levels
bioremidiation
using living organisms to detoxify a polluted area (genetically sometimes)
biological augmentation
adding natural predators to a damaged ecosystem
population density
the number of organisms per unit area
dispersion
the pattern of spacing in a population
population range
the variety of places where a population can survive
population limiting factors
factors that keep a population from continuing to increase indefinitely
