Anthropogenic extinction occurs when human activities such as overhunting, habitat change, and resource exploitation eliminate species and alter food webs.
Coverage 2025–2025 · Updated 15 Jul 2026
Anthropogenic extinction occurs when human pressures reduce a species to zero surviving individuals across its natural range.
Habitat loss, overharvesting, invasive species, disease and climate change can reduce population size below recovery thresholds. Small populations then face inbreeding, demographic chance and further habitat loss. Use the evidence scale and context before drawing a broad conclusion.
Trace an extinction pathway:
Targeted hunting combined with slow reproduction can remove adults faster than a population replaces them, even when some habitat remains.
Local disappearance is extirpation; extinction means the species is gone globally.
This objective is assessed through multiple choice, commonly using Identify.
Identify
Build the answer around this relationship: Anthropogenic extinction is extinction caused by human activities.
Representative question
The North Island giant moa (Dinornis novaezealandiae) went extinct some time between the arrival of humans in New Zealand and the 1800s.
What do scientists believe to be the cause of this extinction?
Deforestation
New diseases
Competition with other megafauna
Overhunting
A strong conservation answer follows a chain: define biodiversity, measure evidence of decline, identify human drivers, then justify conservation action. Biodiversity includes ecosystem, species, and genetic diversity; species diversity uses richness and evenness. Evidence comes from estimates, fossils, repeated surveys, IPBES reports, and indices. Drivers include extinction pressure, ecosystem conversion, population-driven resource demand, pollution, and invasive species. Responses include in situ, ex situ, and EDGE prioritization.
