Biology/Environmental Science
Terms
undefined, object
copy deck
- What is a biome?
- area with similar climate, tepography and soil conditions
- What was a biome named for?
- the dominant vegetation that grows there
- what are the qualities of a biome?
- rainfall and ranged of temps.
- Define desert.
- area with extremely low rainfall, falls 30 degrees latitude, temp. fluctuates
- define grasslands
- prairies and savannas- fixed seasons in terms of temp. and rainfall, very productive soils. Few trees because of moderate rainfall and role of fire and animals
- What animals used to be seen often in prairies?
- buffalo and passenger pigeons
- define tundra.
- alpine and artic- alpine and artic located in high altitudes- short growing season and harsh winters. Lots of water but in the form of ice and snow.
- Define Alpine
- exposed to higher level of UV radiation and less access to water than artic b/c of tepograhpy and runoff
- Conifer forest
- boreal, taiga, and pacific coasts- sandy soils from glaciers, with little water retention, needles, short growing season, fire play important role, mixed hardwoods
- Pacific coast
- redwoods, foiund in more mild temp. and abundant rainfall
- taigo
- located at northern edge of conifer range befroe transition in tundra
- Tropical moist forests
- ample rainfal and uniform temp. biologically rich, thin acidic soil and very nutrient poor, quick turnover time
- Auguatic ecosystems-
- varied in climate, soil, deals with everything occuring upstream, water clarity and depth affect water penetration, changes in temp.
- Habitat stratification
- division by light pentration
- types of habitat stratification
- littoral, binetic, profundal, benthic
- littoral
- shoreline to depth of light penetration
- binetic
- open water that recieves light
- profundal
- portion wher light doesn't reach bottom
- benthic
- interface of water and substrate
- Division of water by temp.
- epilimon and hypoimnion and thermodine
- epilimon
- top portion, mixed by wind and surface action
- hypolimnion
- no moving water occurs apart from internal convective currents
- thermodine
- dinstincee line that separated Epi and Hypo, dramatic change in temp, light and oxygen
- types of wetlands
- swamp, marsh, fen, bog
- swamp
- presence of trees ans slowly moving water
- marsh
- absence of trees but also has slowly moving water
- fen
- canhave trees but is characterized by stagnate water from runoff
- bog
- can have trees, but has stagnate water from rainfall
- what do wetlands do to land?
- detoxify substances and replenish underground aquifiers- great place for birds to migrate
- what is restortion ecology?
- any science concerned with repair for reconstruction of damaged landscpaes regarless of human or natural causes
- what is restoration?
- bring back to former state
- remediation
- cleaning up site by removing or cleaning contaminants
- re-creation
- attempt to construct a new habitat type