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How many times higher is the estimated rate of extinction for the species now compared to before humans appeared on earth?
1000
What do you think are the main reasons for the increased rate of extinction?
Extinction of species may greatly affected by man made change to the ecological system. There are troubles in measuring the actual extinctions increased by man. With the extincted species we got newly adapted species to replace. By average, living species live for 10 MYr average and we hardly measure the increase rate of extinction since we can hardly estimated a correct background extinction rate. For what scientist can say is, human existence become major factor of species natural selection process. Those that can adapt to coexist with human had greater chance of survival.
What is cause background extinction?
It is the fate of most living things eventually to go extinct. standard commonplace rate of extinction not associated with a mass extinction.
Is the current rate of extinction decreasing significantly?
False it is not decreasing significantly maybe a little
How many species vanish each week?
It is estimated that about 150-200 species go extinct every week. This rate is significantly higher than the natural background extinction rate. Loss of habitats, climate change, pollution, and other human activities are some of the main reasons for this high extinction rate.
How have humans increase the rate of extinction in the world?
No.
How does rate of extinction compare to the rate of species formation on earth today?
The rate of extinction is faster.
How does the rate of extinction compares to the rate of species formation on Earth today?
The rate of extinction is faster.
How does the rate of extinction compare to the rate species formation on earth today?
The rate of extinction is faster.
What is background extinctions?
A background extinction is the continuous extinction of individual species caused by climate change, disease, loss of habitat, and competitive disadvantages against other species. Background extinctions occur at a slow rate over time, affecting only a few species at one time.
How many times higher is the estimated rate of extinction for the species now compared to before humans appeared on earth?
1000
How does the rate of extinction compare to the rate of species formation on earth today?
Currently, the rate of extinction is significantly higher than the rate of species formation on Earth. Human activities, such as habitat destruction, climate change, and pollution, have accelerated the extinction rate. This imbalance in the rates of extinction and species formation is leading to a loss of biodiversity at an alarming rate.
What do you think are the main reasons for the increased rate of extinction?
Extinction of species may greatly affected by man made change to the ecological system. There are troubles in measuring the actual extinctions increased by man. With the extincted species we got newly adapted species to replace. By average, living species live for 10 MYr average and we hardly measure the increase rate of extinction since we can hardly estimated a correct background extinction rate. For what scientist can say is, human existence become major factor of species natural selection process. Those that can adapt to coexist with human had greater chance of survival.
Why are scientists concerned about specis loss if extinction is a natural process?
The extinction rate is much higher than it would be without humans, therefore most animals would have not gone extinct had it not been for human intervention.
Which is not a way that humans influence the rate of species extinction?
The food chain, sometimes animals cannot find any food so die which can decrease the popularity.
Because extinction is a natural process why should humans now be concerned with the extinction rate?
Because the extinction rate is conservatively 100 to 1,000 times higher because of humans. So if it wasn't for us the natural rate would be such that the environment could recover from it. It is true that we are a natural part of extinction, but we have also benefited many species of animal that we deem to have favourable characteristics. Cattle, sheep, pigs and poultry exist in huge numbers due to human activity. If an animal is not useful to humans, and is co-existing in the same habitat, its numbers will decline. Cuckoos invade the nests of other birds, substitute it's own eggs for the hosts, and lets them raise it's young. Is this wrong? Or is this nature at work? Humans are also nature at work, and we should only be concerned if a species benefiting us is in decline.
What happens if the rate of extinction in a clade is greater than the rate of speciation?
Do your own hw
