Within a community of species, there are factors that influence how the population will change over time. Two of the main aspects of this are exponential growth and logistic growth that is determined due to the resources in the area. Exponential growth is when there is enough resources for all the species in the area, allowing the population to flourish and create the "J curve." On the contrary to that is logistic growth where the limited factors mold how the area's population is going to grow into. This is often known as the "S curve" because of its inability to remain constant throughout. However, these limiting factors have two different categories, one of them being density-dependent and another density-independent. The density-dependent factors are those that completely control and slow down the environment (eg. food, water, space). On the other hand, the density-independent factors are those that are unexpected and unpredictable but still affect the population (eg. disease, natural disaster, weather). Lastly, these limiting factors control the number of species able to live and survive in the area, also known as the carrying capacity. Competition from resources is highest when the population is near its carrying capacity.
African Lions: Modeling Populations (What Factors influence how a population changes over time?)10/29/2014
3 Comments
Yoni
9/19/2016 03:29:57 pm
Hello
Ching
9/19/2016 03:30:30 pm
Hello everyone
Ling Ling
9/19/2016 03:30:54 pm
I love biology! Leave a Reply. |