Species Diversity
the number of species in a given area
species diversity
when the entire species is dead
extinct
extinction that occurs at a constant rate
background extinction
most are about organisms doing what
moving into areas where they have no evolutionary history
the number of ecosystems in a given area
ecosystem diversity
when the species has the potential to become endangered in the foreseeable future
threatened
extinction that occurs from natural disasters; whether they are density dependent or independent; how many must die
mass extinction; density independent; 50% or more of the upper taxa level
as temperature rises, what organisms move into temperate regions
tropical organisms such as mosquitos
solar energy: The MORE sunlight, the ___ rain, the ___ plants, the ___ animals
MORE MORE MORE
DAILY DOUBLE
species that are found on one spot of the earth and nowhere else, and what a spot is called when they have many of these species
endemic species; biogeographical hot spot
small
how does habitat loss lead to the introduction of new diseases
the parasites that were on animals stay and now feed off of humans
the longer an ecosystem has been established, the healthier the interactions are
evolutionary history
when the species has the potential to become extirpated or extinct in the foreseeable future
endangered
this geographic range is less vulnerable to extinction
large
these three factors upset community structure
over harvesting, introduction of exotic species, removal of natural predation
regular and moderate-level
when a species is extinct in part of its historic range
extirpated
this niche requirement is more vulnerable to extinction
specialist
two things we can do to help
practice sustainable yield, find a way to work with and accommodate natural predators