Biodiversity refers to species richness in a given environment and the number of organisms within each species.
The number of species and organisms depends on the environment.
Biodiversity can increase or decrease due to succession, natural selection and human influence.
A biodiversity index can be used to monitor a habitat and compare the biodiversity in different habitats.
Simpsons index can be used to calculate biodiversity. The higher the value the higher the biodiversity
Polymorphism is the occurance of more than one phenotype in a population that cannot be accounted for by mutation alone
The more single nucleotide polymorphisms and hyper-variable regions a population has, the more differences in it DNA fingerprints and the greater the biodiversity.
Natural selection generates biodiversity but can also reduce it
Adaptation is the change in a species as a useful characteristic becomes more common
Anatomical, physiological and behavioural traits are examples of adaptive traits
Selection pressures are environmental factors that affect an individuals reproductive success
Comments
No comments have yet been made