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On the continuity of background and mass extinction
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Abstract.-Do mass extinctions grade continuously into the background extinctions occurring throughout the history of life, or are they a fundamentally distinct phenomenon that cannot be explained by processes responsible for background extinction? Various criteria have been proposed for addressing this question, including approaches based on physical mechanisms, ecological selectivity, and statistical characterizations of extinction intensities.
Here I propose a framework defining three types of continuity of mass and background extinctions-continuity of cause, continuity of effect, and ...
Related newspaper, magazine, and trade journal articles from HighBeam Research
(Including press releases, facts, information, and biographies)
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Distinctions between extinctions. (differences between background and mass extinctions)
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Mass extinctions and macroevolution
; Abstract.-Mass extinctions are important to macroevolution...background extinction and the major mass extinctions. In any case, the failure of...to predict survivorship during mass extinctions is a more important challenge...
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(book reviews)
; ...the kingdom of weeds. So too can mass extinctions, short periods of intense species...greatest of all evolutionary events: mass extinctions. Acting on a planetary scale, the...perhaps, like the forest-fire analogy, mass extinctions are not such bad things; forest fires...
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Death, taxes, and extinction: an example from the dinosaurs.(Digging Dinosaurs)
; ...paleobiologists call mass extinctions. Although most (probably...occur as normal or background extinctions, in the past 540...Phanerozoic Era five mass extinctions have occurred when...as peaks above the background extinctions. A sixth mass extinction is ...
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Origination, extinction, and mass depletions of marine diversity
; ...recognized mass extinctions located in...distinct mass extinctions. Each of...Mass versus "Background" Extinction The idea that mass extinctions stand out...normal" or "background" extinctions that characterize...identified five mass ...
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Computerized mass extinction.
; ...figure out whether the five great mass extinctions have been random or whether they affected...Valentine's results, it appears that mass extinctions have been random, he says. Valentine...and then he performed three kinds of mass extinctions--one in which he killed off 85 percent...
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Nature `will take more than 10 million years' to recover from mankind
; ...least 10 million years to recover from the mass extinction of animals and plants brought...the ease with which life rebounds after a mass extinction has found that it takes far longer...faster rate than in any of the previous five mass extinctions over the past 600 million years, the ...
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Bone of contention: palaeontologists disagree on whether meteorites or volcanic eruptions caused mass extinctions. The good news is, starting them is not easy.(Mass extinction)
; Rather worryingly, mass extinctions seem to have occurred fairly...affected, but five were major mass extinctions that decimated all forms of...evidence for many of these mass extinctions comes from the fossil record...
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To the editor
; ...October 1998) is mistaken to dismiss mass extinctions so casually. We recognize mass extinctions in the geological record because groups...diversity returned after previous mass extinctions, he does not mention that this evolutionary...
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Periodic mass extinctions at random.
; Periodic mass extinctions at random Gazing into the rock...various periodicities to the mass extinctions that punctuate the earth's history...events could generate periodic mass extinctions. Michael L. McKinney of the University...
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