ecology Flashcards
what is eutrophication
increase in nutrients from land runoff in a waterway causing dense growth of plants/ algae bloom
what fertilisers cause eutrophication
nitrogen and phosphorous
symbiotic relationships
relationships between two or more species where atleast one benifits
parasitism
commensalism
mutualism
define ecosystem
all the abiotic and biotic factors in an area and there interactions
how to minimise eutrophication
reduce use of fertilisers for farming
restore soils surrounding water bodies by planting vedgatation to reduce runoff.
symptoms of eutrophication
lots of algae/ green appearance of waters surface
bad odor from decaying aquatic plants/animals
Provisioning services
The output materials nutrients and energy we obtain from an ecosystem
Food and fibre
Timber
Water
Regulating services
The benefits obtained from the regulation of an ecosystem
Climate regulation
Erosion control
Pollination
Supporting services
The maintenance of the health and functioning of an ecosystems natural processes that don’t yield direct benefit to humans
Soil formation
Nutrient cycling
Water cycling
