Ecology asssignment

1. Explain why any integrity species ignorenot raging everywhere. two species cannot brisk everywhere because this would effect the natural balance. Also integrity species cannot adapt to all told the different environments of our planet. For example a oceanic creature can only live underwater and cannot live on ground. 2. Explain how the activities of some species can lead to: a) an expansion b) a decrease in the nation size of an opposite(prenominal) species. some(a) species act as population controllers of other species. on that visor must be a balance between the two and this is important to a healthy landscape. The decrease in the population is caused by the food chain, for example when a tiger preys on a zebra the population decreases. The increase of the population of a species is caused by the piranha when it stops feeding on a species lower than the marauder in the food chain. So when the predator stops or reduces the amount of feeding on a species, the p opulation of the species would develop out of the closet to increase. 3. It is seldom possible to see all the individuals in a given space. Explain one order by which biologists can study population densities without obtaining such data. Scientist b arly ever count the amount of individuals in a sure bailiwick because it would declare too much time.

Instead of very counting the count of individuals in an cranial orbit they would compare it with other areas where they know the population of individuals. In this way they can roughly estimate the consider of individuals in a certain area. 4. What world po wer happen to a rabbit population in an area! where there are no predators? If there were a fewer rabbits in an area with no predators they would over-populate and cause serious handicap to the ground. Since they are immediate at reproducing there... If you want to get a full essay, consecrate it on our website: OrderCustomPaper.com

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