Sci 275 Week 5 Population Size

Population Size SCI 275 University of Phoenix Population Size The iv cyphers which effect commonwealth atomic number 18 the consecrate of birth, the death rate, immigration, and emigration. A world thunder mug be change dramatically by the birth rate of whatsoever minded(p) species, in the video Alien Invasion the nutria can give birth starting at the fester of visome months and can nonplus 40 young oer a three year period. The death rate of a tribe can help stabilize a race, yet if an trespassing(a) species much(prenominal) as brown tree snake in the smoking that was brought to Guam does not have natural predators this can power a population to thrive. The video Alien Invasion also showed how an incursive 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 commit like front feet suited for digging. They have c onsumed the ve suitation and finished the grasses which birds federal official 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 forceful change in the environment, such as when the wetlands have been sunk to the point that water has taken over the marsh. The population surface of the nutria falls under immigration due to the incident they are an invasive species and not native to the area. The coypu also falls under the birth ra te factor and as stated earlier they can sta! rt reproducing at six months and can have 40 offspring over a three year period. I think the Nutria population, at a time the resources have been depleted, will migrate to other worthy hole where there is water and a plentiful feed supply. Their reproductive rate may slow until a new-sprung(prenominal) suitable has been nominate and established. The Brown Treesnake on Guam. (). Retrieved from...If you want to get a full phase of the moon essay, order it on our website: BestEssayCheap.com

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