1. Research a microbe that is not native to Pennsylvania - state its location, reservoirs, symptoms, and how it is transmitted to people. If it is not transmitted to people, describe how it is transmitted to non-human animals. 2. Think about the environmental conditions in the area that your chosen organism is located and determine if that organism could possibly impact people (or non-human animals) if it was moved to Pennsylvania. If not, what would need to happen in order for that organism to have an impact?

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.