biodiversity Flashcards
describe the biomes
boreal forset
tropical rainforest
tropical grassland
tropical rainforst: hot all year wet all year
boreal forst: warm summers cold winters
tropicdal grassland: hot all year rainy season and dry season
temperate forst
temperate grassland
tundra
temperate forest warm summers cool winters
temperate
explaining ecosystems due to latitude
Because of the earths curvature, the suns rays hit the earth at different angles. The suns rays hit the equator at a right angle. This means that the rays are more concentrated, however at the poles the suns rays hit the earth at a higher degree of angle meaning that the rays are less concentrated and weaker. This means that the vegetation doesn’t Photosynthesise as much making it harder for vegetation to grow shaping the biome in how it looks and the species that are there.
what is the biosphere
the biosphere includes all life living on earth including life living in the hydrosphere and the geosphere.
revise nutrient cycle in the book
revise nutrient cycle in the book
what are the inputs and outputs of the nutrrient cycle
rainfall weathering
outputs surface run off
what are the transfers in the nurtient cycle
leaf fall
decomposition
uptake by plants
woodland characterisitcs and plants
mostly trees
england has mostly deciduous trees scotland and wales have non native
moorland
rough grassland and peat bogs
heather dominates also rare birds
wetland
low nutrinet waterlogged soil
wading birds
bog mosses
benefits to the uk via the c9oastal ecosystem
tourism
fishing
energy via wind
explain each layer of rainforest trees
emergent trees tallest parts of trees main canopy main cluster of trees understory 3% of light reaches here shrub layer forest floor
adaptations of plants in the rainforest
drip tip leaves so water doesn’t stay on it and then cause it to run off
trees have buttres structures therefore entailing that they then have shallow large surface area.
lemur has gripping hands and feet so it can leap from tree to tree.
explain nutrient cycle in the rainforest
large biomass store
small soil store due to large uptake
rapid decay due to large amounts of heat so ideal temp for bacteria
continual supply of litter
small litter store due to rapid decomposityion
how will climate change effect the rainforest
longer dry periods will mean more CO2 being emitted.
change in climatic conditions will mean there may be a lower chance of survival for plants
essay on costa rice ecotourism
generates large income for local people and doesn’t harm natural environment and makes more money than traditional practices
dont have to chop down the forest
education for tourists
selective logging
involves the cutting down of trees at a certain height, the overall structure of the forest is maintained
local people can get jobs
forests structure is still maintained
agroforesty
growing rainforest trees and commercial products at the same time, prevents soil erosion crops benefit no damage donw provides local work highly profitable.
how does the soil in the DW differ from the soil in the rainforest
in the rainforest the soil has less nutrients due to a high uptake from plants to the higher biomass levels.
adaptations of oak trees
large strong branches that spread horizontally to capture as much light as possible
large deep roots to access many minerals and to anchor tree in windy conditions
in automn supply of water is cut from the leaves by a seal so that it falls of and dies
plants and animals in the DW
horizontal branches so that can get the most sunlight possible
foxes have large ears therefore this allows them to hear prey, also fur coat keeps them warm.
describe nutrient cycle
large litter layer large soil store slwo rate of decompostion leaching often happens due to high rainfall. stores are of similar size large rainfall in winter months
dw goods and services
goods timber fuel services recreation carbon capture conservation
climate change significance to ecosystem
increased risk of drought: Trees in DW are not adapted to drought
increased risk of fire
mild winters meaning non native trees outcompete native
causes of deforestation
social veichles increased so land has to be cleared fro the motorway clearing land for farming economic selling timber coiferous trees produce softwood
issues facing the new forest
visitor damage
timber is extracted from softwood and hardwood, some operations are not compatible with visitors
managing the new forest
control of visitors: car parks bike lanes
visitor leaflets: explaining conservation to them
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