chp 30: life history patterns and extinction

size of geographic range, degree of habitat tolerance, size of local population

focus on adaptations to an environment

groups of individuals of the same species in the same locale (all species together)

all the various populations at a particular locale (interactions between populations)

living organisms and their physical environment (all the communities together)

portion of Earth's surface where living things exists (all the ecosystems together)

scientific study of the interactions of organisms with one another and with their physical environment

applies ecological principles to practical human concerns

discipline of environmental science that studies all aspects of biodiversity; goal of conserving natural resources including wildlife for benefit of future generations

opportunistic species and equilibrium species

pioneer species, has exponential growth; members of populatin are small in size, short life span, fast to mature, many offspring, little or no care of offspring (ex: insects and weeds); growth regulated by density independent effects (conditions dont rlly matter)

has logistic population growth (slower curve, pitters out at carrying capacity); members of population are large, slow to mature, have long lifespands, few offspring, lots of care of offspring; growth regulated by density dependent effects

evolutionary change in one species results in an evolutionary change in another (they evolved side by side; ex: predator and prey)

species composition of a community (a listing of species in the area)

species composition and diversity change overtime; more or less orderly process of community change

occurs where there is no soil

begins in a cultivated field that is no longer farmed (soil is already present)