Biodiversity Flashcards
How are species interconnected?
- all species are interconnected, e.g, animals eat plants that need fertile soil to grow.
- fungi and decomposers return nutrients to the soil.
Why is biodiversity important?
biodiversity maintains a balanced ecosystem for all organisms
A balanced ecosystem provides us with food, oxygen
Human activity reduces biodiversity
what human activities reduce biodiversity
farming, clearing land for housing
what regions have the most biodiversity?
tropical moist regions that are warm all year round.
which regions have the least biodiversity?
very cold or very dry areas (arctic and desserts)
what assessment predicts the positive and negative effects of a project?
Environmental Impact Assessment
what are different types of biodiversity?
- habitat biodiversity
- species biodiversity
- genetic biodiversity
Habit biodiversity definition
refers to the number of different habitats found within an area.
examples of a habitat?
meadows, woodlands, streams
2 components of species diversity?
- species richness
- species evenness
species richness
the number of different species living in a particular area.
species evenness
a comparison of the numbers of individuals of each species living in a community.
Genetic biodiversity definition
the variety of genes that makes up a species
