The figure in your post and the paragraph describing it seem to me to be just as unclear as you found it. I tried to click on the link "this", but it failed to take me to the article. I edited the link address and the following seems to work better:Binvestigator said:
thanks very much dear Buzz, with below link you can have access to the article with sci-hub.orgBuzz Bloom said:
Hi Binvestigator:Binvestigator said:
Thanks very much for your trying Dear BuzzBuzz Bloom said:
Punctuated equilibrium is a theory in evolutionary biology that explains the pattern of evolution as consisting of long periods of stasis (little or no change) punctuated by short periods of rapid change.
Punctuated equilibrium differs from gradualism in that it suggests that evolution occurs in rapid bursts rather than gradually over time. This theory also proposes that most species undergo long periods of stasis, with little or no change, followed by short periods of rapid change.
Some of the evidence that supports the theory of punctuated equilibrium includes the fossil record, which shows long periods of stasis followed by sudden bursts of rapid change, and studies of living species that demonstrate the same patterns of long periods of stasis and short periods of rapid change.
Punctuated equilibrium explains biodiversity by suggesting that new species arise through rapid bursts of evolution during periods of environmental change or stress. This allows for the formation of new species without requiring long periods of gradual change.
Some of the criticisms of punctuated equilibrium include the lack of a clear mechanism for the rapid bursts of change, the difficulty in identifying stasis in the fossil record, and the potential for the theory to be misinterpreted as suggesting that evolution occurs in sudden jumps rather than a gradual process.