Three factors that may cause organisms to emigrate include the decline in population of a specific nutrient carried by plants there that is needed to survive, increase in predator population, and decrease in the food source population.
The adaptation and search for spaces in which wild animals can feed, shelter and reproduce is of vital importance for the survival and perpetuation of the species.
Seasonal changes and variations in factors such as temperature, act in conjunction with other elements such as food and water scarcity.
Soil conditions, looking for particular characteristics that favor the development of seeds in certain plant species.
