Ecology cheat sheet

→ fewer habitats/niches → fewer insect species → fewer food sources → fewer animal species

→ less variety of food for predators → fewer predator species survive → lower overall diversity

→ toxic to some species → population of those species decreases → less food for predators / less prey available → reduced biodiversity

→ increased competition with native species / more predation → native species decline → overall biodiversity decreases

If fewer marked organisms recaptured → estimate larger population. If more marked organisms recaptured → estimate smaller population. (Assumption: no immigration/emigration, no change in birth/death rate, marking does not affect survival).