4.2.1 biodiversity Flashcards
define biodiversity
biodiversity is a measure of the variety of life in an area
why is biodiversity important?
it helps maintain a balanced ecosystem as all species are interconnected
what does measuring biodiversity have an in important role in?
tell us what species are present to help their conservation
3 types of biodiversity
1) habitat biodiversity
2) species biodiversity
3) genetic biodiversity
define habitat biodiversity
the number of habitats in an area
the greater the habitat biodiversity, the …
the greater the species biodiversity in an area
define species
a group of closely related organisms that are similar to each other (physically and biochemically) and are able to interbreed to produce fertile offspring
what are the 2 components of species biodiversity?
1) species richness
2) species evenness
define species richness
the number of individuals of each species living in an area
define species evenness
a comparison of the numbers of individuals of each species living in a community
define habitat
place where an organism lives
define genetic biodiversity
measure of the variety of genes that make up a species
what can small genetic differences have large affects on?
small genetic differences can have large effects on the PHENOTYPE of an organism
what types of populations tend to be more healthy?
populations with HIGH genetic biodiversity are healthier than highly inbred populations with LOW genetic biodiversity