Unit 2 Flashcards
(27 cards)
why is species diversity considered a critical enviromental indicator
it shows whether more sensitive species can survive
habitat/ecosystem variety
variety of habitats in a given region
why is it more advantageous to be specialist
less competition
species evenness
abundance of individuals within each species
instrinsic value
spirituals value
instrumental value
worth in goods and service s
provisioning
goods used directly
regulating
helps regulate enviromental conditions
support
processes needed to maintain other services
cultural
beauty tourism
Limiting Factors
enviromental factor most often in short supply
Soil LF
nitrogen phosphorous potassium
open ocean
iron sometimes
freshwater lakes and rivers
phosphorous
bags
salinity
the fish tank
dissolved oxygen
desert plants
water
resistance
ability to remain unchanged when being subjected to disturbance
resilience
ability and rate of an ecosystem to recover from a disturbance and return to its pre disturbed state
fitness
ability to survive and reproduce
climax community
stable plants and animals end result of succession
end-ordovician
uplift of the appalachians makes a severe ice age
late devonian
algal bloom sucks o2 suffocated sea life
end permian
siberian eruption temps surged oceans acidified - worst one
