the climate
the climate
More predators so the population would decrease :(
A decrease in flowering plants, which provide nectar for hummingbirds, could be a limiting factor that influences their population. As hummingbirds rely heavily on nectar as a food source, a decrease in available nectar could result in decreased food availability, impacting their population size.
If the limiting factor chosen is food scarcity, the pigeon population in the town could decrease due to increased competition for limited food resources. This could lead to malnutrition and reduced reproductive success among the pigeons, ultimately resulting in a decline in their 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.
an increase in the spider population
Death and migration are factors that can decrease hare population.
Depending on the pH factor of the water now, you could add acid to decrease the alkaline factor.
If food availability is the limiting factor, then a decrease in food resources would lead to a decline in the pigeon population due to inadequate nutrition for survival and reproduction. On the other hand, limitations in nesting sites could result in overcrowding and competition for suitable breeding locations, which may impact breeding success and lead to a decrease in the pigeon population.
A limiting factor for a predator species could be a decrease in prey population, which would reduce the predator's food source. Additionally, competition with other predator species for the same prey can also be a limiting factor. Environmental factors such as habitat loss or degradation could further impact the predator's ability to thrive.
A sudden decrease in the butterfly population would cause a corresponding decrease in the chameleon population since they no longer have enough food.
Probably an increase in the population in their main predator or over hunting by humans