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52 terms

Environmental Science Chapt 3

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adaptation
Physical changes that allow organisms to survive in a given environment.
natural selection
The mechanism for evolutionary change in which environmental pressures cause certain genetic combinations in a population to become more abundant; genetic combinations best adapted for present environmental conditions tend to become predominant.
selection pressures
Limited resources or adverse environmental conditions than tend to favor certain adaptations in a population. Over many generations, this can lead to genetic changes, or evolution.
critical factors
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tolerance limits
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indicators
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habitat
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ecological niche
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endemic species
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competitive exclusion principle
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resource partitioning
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speciation
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geographic isolation
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allopatric speciation
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sympatric speciation
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binomials
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intraspecific competition
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interspecific competition
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predator-mediated competition
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coevolution
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batesian mimicry
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müllerian mimicry
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symbiosis
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mutualism
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commensalism
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parasitism
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keystone species
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biotic potential
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exponential
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J curve
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carrying capacity
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logistic growth
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density-dependent
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r-related species
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k-selected species
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diversity
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abundance
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community structure
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core habitat
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ecotone
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edge effects
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complexity
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resilience
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primary productivity
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net primary productivity
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stability
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climax community
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primary succession
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secondary succession
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pioneer species
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disturbance
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disturbance-adapted species
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