Question

Three types of threats to biodiversity are:

habitat loss and fragmentation
the introduction of exotic, or non-native, species
overexploitation, or overharvesting

Determine the type of threat that each of the following statements describes.

a. Small rainforest remnants have less diversity than larger rainforest remnants.
b. Melaleuca trees from Australia displace native wetland vegetation in Florida.
c. Wild American ginseng populations have declined as a result of increased demand for the roots.
d. A wetland is drained to make room for a housing development.
e. Florida panthers were geographically cut off from other panthers about 100 years ago.
f. Cod are caught faster than they can reproduce.
g. South American rodents called nutria eat wetland plants and cause bank erosion in the United States,
h. Some fishing nets damage the seafloor.

Answer 1

(a) Habitat loss and fragmentation

(b) The introduction of exotic, non-native species.

(c) Overexploitation or over harvesting.

(d) Habitat loss and fragmentation.

(e) Habitat loss and fragmentation

(f) Over exploitation or over harvesting

(g) Introduction of exotic , or non native species

(h) Over exploitation or over harvesting.