investigation global biodiversity
- Created by: vezting
- Created on: 10-04-16 10:31
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- Investigating biodiversity
- types of diverstiy
- habitat diversity - a habitat is an area inhabited by a species. it includes physical factors and biological factors such as soil and predators
- habitat diversity is the number of different habitats ins on area
- species diversity- a species is a group of simalar organisms that are able to reproduce and give fertile offspring
- species diversity is the number of different species and the abundance of each specie in one area
- species evenness is a measure of the relative abundance of each species in an area
- species richness is the number of different species in an area
- genetic diversity is the variation of alleles within a species, or within a population of species
- habitat diversity - a habitat is an area inhabited by a species. it includes physical factors and biological factors such as soil and predators
- collecting data
- plants- quadrats
- insects- pit fall trap
- flying insects- sweep net
- aquatic animals- net
- species
- unnamed- scientists garre that a large proportion of the worlds species are unnamed, they have not yet been discovered
- named species- named between 15.-1.75 million species - the number cant be exact as there is no central data base
- global biodiversity is the total number of species on Earth
- climate change
- climate change is a significant long-term change of climate in an area- and it affects global biodiversity
- 1:chsnging conditions means places would get warmer and others colder, more will get rainfall and some will get less
- some species need a specific climate to survive, so habitats may become uninhabitable
- this will increase or decrease certain species and it will involve migration or extinction of the species affected
- some species need a specific climate to survive, so habitats may become uninhabitable
- changing the climate means that some disease carrying insects may be forced to migrate
- Eg Malaria to Europe
- warmer and wetter conditions would also encourage fungal growth
- Eg Malaria to Europe
- changes in temp and rainfall will affect agricultural patterns
- areas previously not suitable may now be suitable therefore increasing biodiversity
- unexpected weather events could result in crop failure distrupting food chains, reducing biodiversity
- types of diverstiy
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