Latitudinal gradient and distribution of species richness Biodiversity Biodiversity hotspot Conservation biology Relative abundance of taxa Relative endangerment of taxa Classification Ecosystem biodiversity Genetic biodiversity Inbreeding Population bottleneck Extirpation Extinction/mass extinction Extinct in the wild Species of least concern Wildlife corridor Island biogeography Radio collar Relationship between biodiversity, park size, species richness and ecosystem strength Reintroduction of species Wildlife over and underpasses # of females and species growth Palm oil De-extinction SSP ESA Red list Captive breeding program Endemic Habitat fragmentation Indicator species Endangered vs threatened Background extinction rate Ways humans threaten biodiversity