Biodiversity What is Biodiversity? The number and variety of different species in a given area.
1.1 Biodiversity-An Introduction Pages 8-13. Biodiversity The number and variety of living things.
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Transcript of 1.1 Biodiversity-An Introduction Pages 8-13. Biodiversity The number and variety of living things.
1.1 Biodiversity-An Introduction
Pages 8-13
Biodiversity
• The number and variety of living things
Species
• Members of a group of living things that can produce fertile offspring.
Hybridization
• Plants of different species successfully reproduce.
Morphology
• Plants, fungi and many microorganisms do not “breed” so we use physical characteristics to define species
Evolutionary Changes
• Physical changes• Behavioural changes
Genetic Diversity
• Range of traits among members of the same species
Feeding
• Heterotrophs acquire nutrients from outside themselves
• Autotrophs make their own food through photosynthesis
Species Diversity
• Variety of species• Number of individuals
Structural diversity
• Physical shapes• Sizes• Distribution• Habitats• communities
Biodiversity at Risk
• Food supply at risk• Medicines lost• Economic impact on tourism, forestry • Biogeochemical cycle disruptions