Apopulation has 1000 individuals. over a period of 1year, 500 new individuals are born. witch equation shows got to calculate the birth rate of this population?

The birth rate of this population is 0.5 .

Explanation:

The birth rate is defined as number of live birth rate in a year is divided by the total midyear population. The no of live birth in the country is taken by every year called as census, it is universal registration techniques for birth and it is estimated by the specialized method; In 2016, average of 18.6 birth per 1000 of total population.

Birth in a year:

Birth rate = total population  

From the given data ,  

Birth rate = 500/1000  

=1/2

=0.5  

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.