Selective destruction - wildlife, Biology

Assignment Help:

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.


Related Discussions:- Selective destruction - wildlife

Can you explain diabetes mellitus, Q. What is diabetes mellitus? Diabet...

Q. What is diabetes mellitus? Diabetes mellitus is the disease caused by action or deficient production of insulin and the consequent high blood glucose level and low glucose u

Lactation, LACTATION - Production of milk in the female's breasts af...

LACTATION - Production of milk in the female's breasts after delivery is lactation. Prolactin is responsible to synthesize milk in breast. Oxytocin is responsibleto gi

Synergistic contribution of malnutrition to child mortality, Explain Synerg...

Explain Synergistic Contribution of Malnutrition to Child Mortality? The synergistic contribution of malnutrition to child mortality is consistent across populations and can be

About ribosome, Which type Ribosome occurs exclusivley in Mitocondria?

Which type Ribosome occurs exclusivley in Mitocondria?

Female reproductive system - graffian follicle, GRAFFIAN FOLLICLE - ...

GRAFFIAN FOLLICLE - It appears as knob or stigma in medulla. It is round, discovered by Graff. It is covered by 2 layers - thecae externa & theca interna. From theca i

Explain the formation of enzyme, Explain the Formation of enzyme? Form...

Explain the Formation of enzyme? Formation of enzyme: Vitamin D is essential for the formation of two enzymes -  alkaline phosphtase in the intestinal lining (involved in cal

What is motor cortex corticospinal interneuron, Which of the following is t...

Which of the following is true for a motor cortex corticospinal interneuron A that produces action potentials during movements of the big toe of the right foot in right-handed Pati

List five advantages of dsme, Q. List five advantages of DSME? Followin...

Q. List five advantages of DSME? Following are the advantages of DSME. It enables the patient to 1. Accept the disease. 2. Gain knowledge about disease, its prevention

Definition of osmosis, Definition of osmosis A) The best explanation of...

Definition of osmosis A) The best explanation of osmosis is 'The movement of water from a dilute solution to a    concentrated solution across a partially permeable membrane'.

Ventilation of tracheal system, Ventilation of Tracheal System The man...

Ventilation of Tracheal System The manner in which tracheae are ventilated varies with species of insects but movement of air is achieved in two ways: Diffusion

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd