Sci 275 Week 5 Population Size

Population Size SCI 275 University of Phoenix Population Size The quartet cyphers which effect commonwealth atomic number 18 the pass judgment of birth, the death rate, immigration, and emigration. A nation hindquarters be touch dramatically by the birth rate of whatsoever prone species, in the video Alien Invasion the nutria can give birth starting at the fester of half a dozen months and can nonplus 40 young oer a three year period. The death rate of a universe of discourse can help stabilize a population, yet if an trespassing(a) species much(prenominal) as brown tree snake in the pip that was brought to Guam does not have natural predators this can defecate a population to thrive. The video Alien Invasion as well showed how an invasive species can migrate into an area and wreak havoc on the flora and fauna in an eco-system such as the nutria. The coypu is perfectly adapted for the marsh lands with webbed rear feet and leave like front feet suited for digging. They have consumed the ve suitation and finished the grasses which birds supply on. Emigration is when a species moves out of an area or region. This reduces the population in the region but in enlistment increases the population in the area they have relocated to.

whiz cause of emigration may be the depletion of resources or a drastic change in the environment, such as when the wetlands have been destroyed to the point that water has taken over the marsh. The population coat of the nutria falls under immigration due to the point they are an invasive species and not native to the a rea. The coypu also falls under the birth ra! te factor and as stated earlier they can start reproducing at sixsome months and can have 40 offspring over a three year period. I think the Nutria population, once the resources have been depleted, will migrate to other worthy fixing where there is water and a plentiful feed supply. Their procreative rate may slow until a new-sprung(prenominal) suitable has been name and established. The Brown Treesnake on Guam. (). Retrieved from...If you want to get a lavish essay, order it on our website: BestEssayCheap.com

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