Succession Flashcards
Early-arriving species may link to later-arriving ones in three ways
Facilitate- making environment more favorable
Inhibit
Tolerate
A plot of the annual mean temperature and precipitation in a particular region
Climograph
Tropical Forest
Rain forest: 200-400 cm rain
Dry forest: 150-200
High temperature, little seasonal variation
Layers plants
High animal diversity
Desert
Less than 30cm rain
High tenp generally but varies seasonally and daily
Widely scattered plants
Savanna
Long dry seasons, 20-50 cm rain
Warm year-round but slightly more seasonal variation
Scattered trees
Chaparral
Rainy winters and dry summers. Middle of earth halves
Moderate seasonal variation
Shrubs and small trees
Characteristic changes during succession
More species (diveristy)
More organisms (abundance)
R-relected to K-selected
Gross primary production GPP
All of the energy captured from photosynthesis
Net primary production NPP
GPP minus energy used for producer respiration and metabolism
Gradient between terrestrial biomes
Ectones
Limits of Aquatic ecosystems
Nitrogen and phosphorous
The amount of a nutrients that a plant can absorb
Critical load
Excessive runoff, things die, more decomposers, less oxygen and more things die, more decomposwrs, ect.
Cultural eutriphication
Fossil fules effect on water
Burning fossil files cause CO2
25% of human CO2 absorbed by ooceans
CO2 poisons water - Ocean acidification
Template Grassland
Highly seasonal, dry winters and wet summers.
30-100 cm
Periodically drought common
Grasses and forbs