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level: 10.3 Species diversity and human activity

Questions and Answers List

level questions: 10.3 Species diversity and human activity

QuestionAnswer
Impacts of agriculture- Agricultural ecosystems controlled by humans - Farmers select species, reducing genetic variety of alleles - To be economic, no. of individuals in species needs to be large - And any particular area can only support a certain amount of biomass
Factors that reduce biodiversity- Woodland clearance, trees, animals die, migrate - Hedgerow removal - Pesticides, kill organisms - Herbicides, reduces plant biodiversity, killing them - Monoculture, farmers growing 1 type if crop
Conservation techniques- Maintaining hedgerows - Maintaining existing ponds, create new ones - Reduce use of pesticides - Use organic fertilisers