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Chapter 5/6 Vocab

Environmental Science Vocab

QuestionAnswer
Number of individuals per unit area population
Number of males/females at a given age in a populaiton age structure
movement into a population Immigration
movement out of a population Emigration
growth pattern where reproduction occurs at a constant rate exponential growth
Slow population growth, followed by exponential growth, and finally slows logistical growth
factors that cause population growth to decrease limiting factor
a limiting factor like predators, parasites, or overcrowding density dependent limiting factor
a limiting factor caused by natural disasters density independent limiting factor
planting a single crop year after year monoculture
resources that are replaced in a healthy ecosystem renewable resources
resources that cannot be replaced in a reasonable amount of time non-renewable resources
using resources without causing long term harm to the environment sustainable development
decrease in land productivity caused by overuse desertification
deforestation eliminating trees in large numbers
harmful material that enters an ecosystem pollutant
increasing concentration of toxin at the end of the food chain biological magnification
haze formed by a mixture of chemicals that hangs over a city smog
precipitation with a low pH acid rain
the number of different organisms in a biosphere biodiverstiy
variety of habitats and communities in the biosphere ecosystem diverstiy
number of different species in a given area species diversity
all of the different forms of DNA/RNA on earth genetic diversity
when an ecosystem gets split into pieces habitat fragmentation
small area with a large number of species that are in danger of extinction ecological hot spot
Created by: jamesweide
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