APB G8L10 Ecology Compare and examples

invasive species

the introduction of non-native species into an ecosystem when the new species has an advantage over the native species - leads to death/extinction of native species

urbanization

large numbers of people become concentrated in areas that are relatively small - leads to displacement of native species and an increase in thermal, air, and water pollution

mono-cropping

growing the same crop year after year on the same land - leads to depletion of key nutrients in the soil, increasing reliance on fertilizer

biodiversity

total variety of life on Earth - includes genetic diversity, species diversity, and ecosystem diversity

species diversity

the number and relative abundance of species within a community

species richness

the number of species in a community

species evenness

the relative abundance of species within a community

resilience

how capable an ecosystem is to survive changing conditions

competitive exclusion principle

two species cannot occupy the same niche at the same time

niche partitioning

when species compartmentalize an environment to avoid competition

biennial plants

take two years to complete their life cycle

reproductive diapause

state of suspended reproduction where spermatogenesis or oogenesis is arrested