Hey guys. What I don't really understand is that identifying factors that limit population growth. I think I have the right idea about it but I don't really understand it that well... Can someone please expain to me in more detail the differences of a density-dependent factor and a density-independent factors are?
Thanks!
Density-Dependent Limiting factors are factors that basically depend on how much of a population live in that area. For example: Food, if the amount of species goes way up, then the amount of food goes down.
ReplyDeleteDensity-Dependent Limiting factors are factors that affect a population, but are not affected by the population itself. And they affect multiple populations in a similar way. For example: Unusual weather, such as a drought- It can affect a population, but the growth of the population will not change the weather. Hope this helps!
DeborahS said...
ReplyDeleteBottom line...
For density dependent and independant factors... Think about a crowded classroom (very dense) vs. a less crowded classroom (not very dense).
If there was a flu spreading, which classroom would you rather be in? The less dense one!!! Because disease is density dependent.
BUT if there were a tornado that hit the school... which classroom would you rather be in? DOESN'T matter! Because a natural disaster is DENSITY INDEPENDANT!
Think about the work "limit". If someone limited your spending on clothes, then they would stop you from going shopping. A limit on growth stops the population from growing.