Causes of animal extinction

The complete list of extinct animals till now is as follows: These are also called "chains of extinction". Meanwhile, low genetic diversity see inbreeding and population bottlenecks reduces the range of adaptions possible.

As more species die, it is only making it more difficult for the survivors to find food. Learn about endangered species in your area. Natural factors usually occur at a slower rate than human factors and therefore cause a lower extinction rate.

Slow down when driving. What are the recently extinct animals on the earth? The main cause of habitat degradation worldwide is agriculture, with urban sprawllogging, mining and some fishing practices close behind.

It can also occur over longer periods at lower toxicity levels by affecting life span, reproductive capacity, or competitiveness. Spread of Invasive Species Invasive species invade foreign territory. Effectively, the old taxon vanishes, transformed anagenesis into a successor, [19] or split into more than one cladogenesis.

Illegal killing of birds hunting IV. The main cause of habitat degradation worldwide is agriculture, with urban sprawl, logging, mining and some fishing practices close behind. Our coral reefs are also threatened.

What are the causes of extinction?

Such introductions have been occurring for thousands of years, sometimes intentionally e. The warmer climates we are used to present-day are perfect for diseases and epidemics to thrive. Species which are not extinct are termed extant.

Island restoration In the natural course of events, species become extinct for a number of reasons, including but not limited to: Stearns"so is each extinction Sometimes these new competitors are predators and directly affect prey species, while at other times they may merely outcompete vulnerable species for limited resources.

All species listed as "Possibly extinct" are classified as being critically endangeredas it is unknown whether or not these species are extinct. Air pollutants include carbon monoxide, sulfur dioxide and nitrogen oxides. Habitat degradation can also take the form of a physical destruction of niche habitats.

Global warming has allowed some species to expand their range, bringing unwelcome[ according to whom? Quagga which is known as plains Zebra extinct animal of south Africa 3.May 30,  · Animal Extinction: Causes and Consequences - "Extinction is the rule.

Causes of Extinction of Species

Survival is the exception." -Carl Sagan "Nothing is more priceless and more worthy of preservation than the rich array of animal life with which our country ha80%(1). the extinction crisis It's frightening but true: Our planet is now in the midst of its sixth mass extinction of plants and animals — the sixth wave of extinctions in the past half-billion years.

What Causes Extinction?

We're currently experiencing the worst spate of species die-offs since the loss of the dinosaurs 65 million years ago. Today, more and more animal and plant species are on the verge of extinction because of a variety of major factors that cause a species to become endangered, and as you might expect, humans play a role in quite a few of them — in fact, the biggest threat to endangered animals is human encroachment on.

Natural Causes of Extinction. Climatic Heating and Cooling. Climate Change is caused by a number of things. The effect that climate has on extinction is very big. The biodiverse Earth can't keep up with the rapid changes in temperature and climate. Causes of extinction Habitat degradation is currently the main anthropogenic cause of species extinctions.

The main cause of habitat degradation worldwide is agriculture, with urban sprawl, logging, mining and some fishing practices close behind. Causes of animal extinction In the twenty first century, there have been major causes of animal extinction.


These include habitat degradation in that the surrounding the life of animals is interfered with and thus become harmful for the life of the species.

Causes of animal extinction
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