Parelaphostrongylus tenuis is a parasitic brain worm that infects members of the Cervidae family, such as deer and moose. The worm's most common host is the white-tailed deer which lives in pulation density, climate and an individual's resistance to the parasite. Most deer populations have evolved a resistance
to the fatal effects of the worm but still carry the parasite. As Earth's c
quently in mouse populations. How will the moose populations be impacted by these changes?
Moose populations would decrease as the moose emigrate to safer habitats
Moose populations would increase since the moose and deer can breed creating resistant moose.
Moose populations would decrease as the worm is a biotic factor that will limit the growth of their population
Moose populations would increase as weak moose are killed allowing stronger moose to give birth or immigrate into the area.