Paper 1 physical geography : Living world Flashcards
Ecosystem meaning
A natural environment made of abiotic and biotic factors
Why are decomposers important?
Without decomposres, plants wouldn’t get essential nutrients and dead matter and waste would gather
What is interdependence in an ecosystem?
Where each part of an ecosystem relies on evry other part for its survival
Why is a food web more accurate than a food chain?
Shows multiple food chains msking it easier to discern the impact of increasing/ decreasing a species
In a rainforest what are the levels of
-Biomass
-Litter
-Soil
like?
-high (rapid growth)
-low (high decomposition = less litter)
-low (leaching)
In a Desert what are the levels of
-Biomass
-Litter
-Soil
like?
-Low (arid conditions)
-Low as there are few plants
- HIGH because low productivity keeps nutriens in the soil
What is Biome?
A large scale ecosystem
What biome is the uk?
Decidious forest
Why are biomes found almost parallel to lines of latitude?
closer to equator = hotter
Where are tropical rainforests found and what is temperature like here?
Found along the equator. constant high temperatures and rainfall
Where are deserts found and what is temperature like here?
Found close to the tropics. Day = high temperatures, Night = cold due to lack of cloud
Where are tropical grasslands found and what is temperature like here?
Between the line of latitudes of 5-30 degrees N + s of equator. Tropical wet to tropical dry
Where are temperate grasslands found and what is temperature like here?
Between 40-60 degrees. Cold winters and warm summers with some rain
Where are Mediterranean found and what is temperature like here?
Around the mediterranean sea. moderate climate
Where are decidious forests found and what is temperature like here?
grow around 30-40 degrees north. cold winter temperatures
