9/18 APES HIPPCO +

Habitat loss is _______ threat to biodiversity

greatest

habitat loss is most comonly caused by habitat fragmentation

habitats smaller

prevents movement of organisms

habitat loss has caused

80% of threatened birds and mammals

inasive species displace

native species

gorillas, primates, and other wild animals

bush meat

pollution harms organisms in many ways

Air pollution

water pollution

agricultural runoff

persistent pollutants (POPs) DDT ex

Plastic in ocean

climate change hurts biodiversity shifts ranges

polar bears cant o up anymore because they are at the poles

poaching

illegal killing of wildlife

conservation

wise use of natural resources

NGOs

nongovernmental organization

why are amphibions disappearing

non single answer

40% of 6800 species are threatened

indicator species

IUCN

Red List

whats causing amphibians to disappear

prolong droughts = less breeding grounds

UV radiation

Parasites/flatworms deform

viral and fungal diseases cryptid fungus

pollution poesticide + hormones atrizine (GAY FROGS)

92% of frogs in atrazine water had wrong gonads and couldnt breed

Kihansi Spray Toad

1986 found out

small endemic toad of tanzania insectivours

extinct in wild

in 2 HECTARES (or was)

SITU

in natural habitat

ex SITU

in zoo

dam caused 90 percent reduction in wate flow to frog BUT

they put in a sprinkler, it broke pop crash and 2009 extinct in wild