Studied by 27 peopleecosystem
collection of all the organisms that live in a particular place along with their environment
biotic factor
living things in an ecosystem (plants and animals)
abiotic factor
physical or nonliving things in an ecosystem (temperature, sunlight, availability of water)
Symbiosis
cooperation of two life forms to help 1 or both survive
Symbiosis: Mutualism
both species benefit
Symbiosis: Commensalism
one species benefits, one is unaffected
Symbiosis: Parasitism
one species benefits, one species is harmed
competition
species compete for a limited resource with their own species or another species
resource partitioning
using the resource in different ways, places, or at different times (reduces negative effects of competition)
What happens when two species compete for the same resource?
they cannot stably exist
biomes
different areas with varying annual temperature and precipitation
What biome can support the most biodiversity?
Tropical regions (tropical rainforest)
wetlands
aquatic ecosystem where the river meets the sea
abiotic factors that influence aquatic biomes
temperature, sunlight, turbidity, salinity
First law of thermodynamics
energy cannot be created or destroyed, only lost or transformed
second law of thermodynamics
some energy is lost as it is transformed from one form to another
what happens to energy as trophic levels increase?
majority of energy is lost, only around 10% is passed on
NPP equation
NPP = GPP - R
source
resource that releases more than it stores
sink
resource that stores more than it releases
Fix - A
N - N
A - P
A - A
D - N
Fixation - Ammonia/ium
Nitrification - Nitrates
Assimilation - Proteins
Ammonification - Ammonia/ium
Denitrification - Nitrogen Gas
Phosphorus cycle
mostly kept in rocks + sediments, doesn’t cycle through the atmosphere, gets to soil through decomposition
steps of the hydrologic/water cycle
Evaporation
Condensation
Precipitation
Runoff
Percolation (infiltration)
Groundwater
Transpiration
Note
Flashcard