deforestization or the destruction of owl habitats could cause a decrease in an owl population. This would then mean the owls prey, such as a field mouse, would flourish and increase in population.
Decrease of ozone in the stratosphere could cause UV to enter the surface. These could cause skin cancer and the immune system to weak.
Several things could cause it. A decrease in any predator that feeds on mice will cause an increase in mice population because less of them will be eaten by other animals. An increase in the mice food supply could cause an increase in population too, especially if lack of food was the main limiting factor of the mice population. In very rare circumstances, additional mice could be brought in from other parts of the world by humans. There are some non-native fish living in lakes because someone put some in there and they started to breed.
The mutual force of gravitation between the earth and the sun would decrease if the mass of either body decreased, or if the distance between them increased.
If an adaptation were non-inheritable it could not cause the population to evolve because it would not be part of the populations gene pool.
Two ways to get water to evaporate faster than normal are to increase the temperature or decrease the pressure.
an increase in the spider population
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.
A sudden decrease in the butterfly population would cause a corresponding decrease in the chameleon population since they no longer have enough food.
What will cause a decline in the human population is loss of fish, dirty water, a whole in the ozone layer. These are just three causes that could decrease mankind.
the prison becomes overcrouded and could cause riots and rebellions
Death and migration are factors that can decrease hare population.
A natural cause of decline in a population could be disease outbreak or an epidemic. Diseases can spread rapidly through a population, resulting in a significant decrease in the number of individuals. This decline in population can occur in both plants and animal species.
the climate
the climate
The loss of habitats has resulted in a clear decrease in diatom species
yes, they cause stress which could lead to strokes. Exams are a undercover weapon used by the goverment to decrease population. This could lead to a rise in drug use to cope with stress.
More predators so the population would decrease :(