Biodiversity flipped learning

• A population is the total number of organisms of one species in an area
• A community is the number of organisms of all species in an area
• A place where an organism lives is a habitat
• Biodiversity is the variety of animal and plant species in an area
• The species richness of a community is the number of different species present in an area
• Species are organisms that can reproduce together to produce fertile offspring
• species are also know as a group of organisms that share the same genes
• Biodiversity includes plant, fungal, animal and bacterial species
• A hedgerow is a line of closely spaced shrubs and tree species, planted to form a barrier or to mark the boundary of an area
• Hedgerows are an example of a habitat
• Trees, mammals. birds and insects are present in hedgerows
• Index of biodiversity takes into account the number of species and the number of individuals of each species
• N is the total number of organisms of all species
• n is the number of organisms of each species
• A higher diversity index tell us that it is more diverse so it is a more stable habitat
• A lower diversity index means that it is less diveres so it is a least stable habitat
• Deforestation is the clearance of native forests by logging or burning
• The trees are used as fuel or wood based products
• Deforestation increases space for growing crops or used for farming animals
• Agriculture is the clearing or removal of woodlands and hedgerows so that their is a larger area to grow crops and keep animals
• Monoculture is only growing one species of crop over a large area
• Pesticides are chemicals which kill pests.
• Pesticides kill insects that feed on crop plants so the crop is then more productive but decreases animal species diversity
• Growing one crop species means there is a large amount of food for a specific animal species
• Herbicides are chemicals used to kill weeds so the crop is more productive
• Ki;;ling weeds decreases plant species diversity so there will be lower variety of food sources and a lower variety of food sources and decreases the animal species diversity
• Economical reasons to maintain diversity are tourism, agriculture, saving local forest communities and commercial products
• Ethical reasons to maintain biodiversity is the preventing the loss of habitats, preventing the extinction of species, preventing reduced biodiversity and preventing the decrease in plant and animal species.
• Hedgerows increase plant and animal diveristy, more variety of food sources and habitats, make the countruside look beautiful ,soil is more fertile, used as boundaries and the predators in hedgerows kill the pests feeding on crops.
• However hedgerows have high maintenance costs, they may contain habitats for pests, they take up space so less crop productivity and they compete with crops for light, CO2, water and ions, decreasing crop productivity.