Selective destruction - wildlife, Biology

Selective Destruction - Wildlife

The selective destruction of one species of an existing fauna can produce equally unfortunate results. The perfect demonstration of unexpected consequences of such destruction occurred in the early years of this century in the USA. In a mistaken effort to increase the deer herds on the Kaibab Plateau, President Theodore Roosevelt, himself a very keen naturalist, authorised the destruction of the natural enemies of the deer, the puma and the wolf. The result was not as expected.

Deprived of their natural enemies, which had served to keep their number in check, the deers multiplied so rapidly that there was soon insufficient grazing areas to support them. As a result what had been fertile grassland capable of supporting large herds of deer was soon reduced to unproductive desert virtually unable to support any wildlife. As their available food supplies diminished so the deers died of starvation in the thousands, and in a very short time the total deer population fell far below what it had been when they were subjected to the full effects of their natural enemies.

Posted Date: 1/21/2013 2:29:13 AM | Location : United States







Related Discussions:- Selective destruction - wildlife, Assignment Help, Ask Question on Selective destruction - wildlife, Get Answer, Expert's Help, Selective destruction - wildlife Discussions

Write discussion on Selective destruction - wildlife
Your posts are moderated
Related Questions
write the raspiration of different types of animals of different phylum

Conduction in Myelinated Axons The myelin sheath provides insulation for the axon preventing movements of Na + and K + through the membrane. Therefore, if this myelin sheath

What is Ancient Gondwanaland? Did you know that the land surface of the earth was once comprised of two super continents called Gondwana and Laurasia? Click on the Multimedia b

Q. What do you mean by Oesophagitis? We already know that oesophagus is a muscular tube 25 cm in length and basically helps in transporting the food from the mouth to stomach,

Q. What are examples of the economic and ecological importance of molluscs? Molluscs are important players in several food chains in ecosystems. Many marine molluscs are part o

Disease Control and Prevention reports: Body Mass Index is a reliable indicator of body fat for most children and teens. BMI is calculated from a  child's weight and height is

Galvanotaxis - Modes of Cell Movement Galvanotaxis considers to the movement of cells in response to a potential variation between cells. It is suggested that there are voltag

the appendages of arthropods; a. may serve as walking legs, b. may be modified into atennae, c. may be modified into large pincers, or d. all of the above

How do plants solve the problem of transporting substances throughout their tissues? In bryophytes the substance transport is completed by diffusion. In tracheophytes (pteridop

How does aldosterone act and where is it produced? Aldosterone is a hormone that acts upon the nephron tubules stimulating the resorption of sodium. Thus it contributes to the