chapter 3 Flashcards
cultural services
benefits related to our enjoyment to the enviorment ecotourism recreational
ecosystem products
products from a ecosystem- hunting, fishing, harvesters
renewable
resources that can be replenished within a normal human lifespan
non renewable
resources that cant be replenished within a normal human lifespan
equilibrium
describes the state of an ecosystem with a relativley constant condition over a long period of time
succession
the pattern of change in an ecosytem
primary succession
succession on newly exposed ground such as volcano eruption
secondary succession
succession in a partially disturbed ecosystem such as forest fire
benifits of succession
allows ecosystems to recover from disturbances
biodiversity
the variety of life found in an ecosystem
speices richnesss
the number of speices found in a area
extinct
a speices thatis no longer on the earth
extirpated
a species that no longer exists in one particular area of its range
endangered
s species that will become extinct
threatened
a species likely to become extinct if factors are not reversed
special concern
a species showing signs of decline in overall health population
fragmentation
the dividing up of a reigon into smaller parcels or fragments. fragments reduces the sustanability of ecosystems
leading cause of extinction
climate change, habitat loss, fragmentation.
invasive species
a non native species that is introduced into a ecosystem with a negative impact
pollution
harmfull contaimants released in the enviorment
acid preciption
precipitation with an acidic ph value
neutralize
balancing the properties of acids and bases
oils spills
ways to clean up
stewardship
taking responsability for managing and protectiing the enviorment
forestry practice
clear cutting removing all trees in one area, shelter wood cutting remove the mature trees selective cutting cutting down a certain type of trees
