![]() ![]() Segment 3: Digging Deeper into the significance of limiting factors Obviously with a larger population there will be a larger number of organisms who are killed, but both populations will be reduced to half of their original size. If the hurricane kills 50% of the population, it is going to have the same impact in both ecosystems. natural disastersĮXAMPLE: In a large or small ecosystem which has just experienced a hurricane, many of the organisms are going to die off, and the population size will decrease. A small population will not be as impacted by this type of limiting factor.ĭensity independent limiting factors – fire, flood, hurricanes, and pollution.Big population has more prey for the predators to feed on and more animals the parasites can attach to.The same goes for parasites and predators. ![]() A smaller population has less competition, and will not suffer as much from this lack of resources.There is competition for these resources so in a larger population, more animals are competing for these factors, and more animals will NOT have access to them.Segment 2: Example of density dependent and density independent limiting factorsĭensity dependent factors are food, shelter, water, parasites, and predators. large population and small population would be equally impacted.When there are more organisms, more will be affectedĭensity independent- regardless of the density (crowdedness/ number of organisms) the limiting factor will decrease the population the same amount. Limiting Factor- something in an ecosystem that helps contain a population’s size by slowing or stopping growth, (biotic or abiotic)ĭensity dependent factors- higher the density of the population, the higher the impact of the limiting factor will be. Organisms can’t grow exponentially or else the earth would be covered in all sorts of animals and population, so we need something that limits the population High density ecosystems- lots of organisms in little space (New York City) Low density ecosystems- organisms spread out (country/rural) Population density- the number of organisms within a given area or ecosystem (how crowded) Segment 1: Introduction to Density Independent vs Density Dependent Today we will be discussing exactly that, limiting factors in an ecosystem that are considered density independent and density dependent. Welcome to My AP Biology Thoughts podcast, my name is Morgan and I am your host for episode #28 called Unit 8 Ecology: Density Independent vs Density Dependent limiting factors. My AP Biology Thoughts Unit 8 Episode #28 ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |