What are some causes of extinction?

Answer 1

There are over 15 causes of extinction. The top five causes are habitat destruction, invasive species, pollution, population, over harvesting and over hunting.

Answer 2

Causes of ExtinctionSome major causes of extinction are:

Taking Animals for Profit;

Hunting and Trapping;

Overharvesting;

Introduction of "Alien" Species;

etc.

But the single greatest and growing threat is habitat alteration/destruction resulting from human actions. (Species cannot continue to exist when their ecosystems-their very homes-are gone.)

Answer #2:

99.99% of all animals that have lived on Earth over the past 3.5 billion years are extinct. 99.98% of those extinctions occurred before the rise of modern man. The greatest cause of extinction is the failure of the species to adapt or have the ability to adapt to change. The Earth is not a "static" system - it is forever subject to change due to internal (wind and ocean current changes, tectonic effects, climatic changes, rise of "better" species, etc.) as well as external (solar energy changes, impacts by comets, asteroids, meteoroids, gamma rays, etc.) effects.

Answer 3

some causes of extinction are:

1. commercial hunting

2. clearing the forests

3. overharvesting

4. pollution

• Unregulated predation.
• Catastrophic disease
• Loss of Habitat
• Out competed
• Loss of ecological niche - dependent livelihood
• Loss of reproductive success

Answer 4

A sudden change in temperature, food availability or habitat may cause the extinction of a species.

Mass destruction and/or failure of adaptation

Natural disasters and a lack of necessities like food sources.

Being hunted, loss of natural habitat, climate changes, natural disasters, poor adaptation/natural selection

Answer 5

In the modern world, the top four would probably be as follows (for animals; for plants, it would probably simply be the destruction of their habitats):

Habitat destruction (definitely #1)

Over-hunting (extirpation, poaching, etc) (#2)

The rest are harder to order:

Pollution of water, land, and air (global warming appears to be causing harm to some species, especially amphibians).

Habitat fragmentation (isolating tiny populations, preventing animals from finding mates).

Of course, mass extinctions caused by catastrophes are reasons for premature extinctions in Earth's past, and are likely to happen again. Also, if any keystone species is destroyed by any of the above reasons, it is possible that other species will suffer, also.

Answer 6

Habitat fragmentation, habitat destruction, poaching etc

Answer 7

the main causes of the extinction of the wildlife is there not saving the animals and let them not to eat for 5 weeks up and let them die

Answer 8

A new disease, a new predator, a change in temperature and new competitors