3.2 - extinction

extinction definition

dying out or extermination of species occurring due to

• environmental forces

• evolutionary changes

mass extinction definition

when abnormally large number of species die out simultaneously or within a limited time frame

Holocene extinction

• the 6th mass extinction due to human activity

endemic species definition

species native to a particular place and only found there

direct human influences on biodiversity

• over harvesting

• poaching (trophy hunting)

• illegal pet trade

indirect human influences in biodiversity

• habitat loss/ destruction/ fragmentation

• climate change

• pollution

• invasive alien species

management of invasive plant species

• mechanical

• removal by hand

• poison

• biological control

management of invasive animal species

• culling (selective slaughter)

• barriers / fences

• poison

• biological control