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conservation of biodiversity (part 6) (control of biotic habitat features,…
conservation of biodiversity (part 6)
habitat conservation
land ownership - buy areas to protect species that already live there
designated protected areas - legal status of the protection
voluntary agri-environmental schemes - - provide financial support needed - to support and reward farmers
habitat creation and management
unintentional habitat creation - reservoirs, flooded sands
intentional habitat creation
habitat design
habitat area
- size
biological corridors
- linking allows dispersal of young animals if there is a local breeding surplus and the mixing of different populations and gene pools which reduces the risk of inbreeding .
habitat shape
habitat diversity
- increases biodiversity as different species colonise the areas which each is best adapted
light levels
- sunlight increases plant growth
water depth
vegetation age structure
provision of abiotic habitat features
water - source of drink, breed, habitat
dissolved oxygen
temperature
light levels
pH
mineral nutrients
salinity
control of biotic habitat features
food
control of predation
control of competitors
pollination
seed dispersal
control of pathogens
species re-introductions - many habitats have changed due to human activities however habitats can be re created into a more natural habitat
control of ecological succession - plagioclimax maintenance -activities that disturbed the climax community are carried our regularly so a new community of species develops (as species are used to the human activities that affected the habitat)
activities that continue in maintained plagioclimax environments
grazing
mowing
burning
coppicing
pollarding