Population crash
A sudden decrease in the butterfly population would cause a corresponding decrease in the chameleon population since they no longer have enough food.
Plankton population decrease plankton making less oxygen
It is as you are Gida.
A sudden decrease in barometric pressure is a sign that a storm is coming.
contractions
The population of zoo plankton would decrease.
A decrease in the birth rate will cause a decrease in population over time.
Death and migration are factors that can decrease hare population.
"Boom" is used to describe a sudden growth in the population of a city.
There are many contributing factors that could be the cause for a decrease in fox population. Over population, not enough food, disease, or over hunting or poaching any of these could be the reason for a decrease in the population.
The decrease in population is 900. The Percent change is 900 / 4500 X 100 = 20% Decrease Or = -20%.
This is called a population increase.