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biodiversity hot spot
DIVERSE region that faces severe threats and has lost 70%+ of original vegetation
Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES)
bans capture, exportation, or sale of endangered and threatened species
absorbs nutrients from nonliving organic matter (including waste!) and converts it into inorganic forms. ex: bacteria and fungi
demographic transition model
model used to predict population trends based on births, deaths, and economy
amount of Earth's surface that's necessary to supply and dispose waste from a population. I=PxAxT (pop.)(affluence)(technology)
Endangered Species Act Program (1973)
prohibit trading and commerce of species endangered or threatened
random fluctuations in frequency of seeing a gene in a small, isolated population. Due to chance, not natural selection
Law of the Minimum
living organisms will continue to live, and consume available materials until the supply of materials is exhausted.
logistic population growth
populations are well below size dictated by carrying capacity, and then they grow exponentially
Marine Mammal Protection Act
protected marine mammals from falling below optimum sustainable population levels
the cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment
number of individuals of a population that inhabit a certain unit of land or water
can predict long-term population growth (70/current growth=population will double in x years)
significant factors of human population growth
availability of clean water, improved sanitation systems, and medical care
fires that only burn forest's underbrush and don't damage mature trees; they help because they prevent bigger fires by removing underbrush that would otherwise burn quicker at high temps.
flat platforms on the hillside that creates level ground and reduces soil runoff from the slopes
total fertility rate
# of children an average woman will bear during lifetime; based on analyzing data from past
traditional subsistence agriculture
each family in a community plats crops for themselves and harvest with labor by themselves or with animals
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