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Are invasive speciesamajor cause of extinctions?
Are invasive speciesamajor cause of extinctions? Jessica Gurevitch and Dianna K. Padilla Department of Ecology and Evolution, Stony Brook University, Stony Brook, NY 11794-5245, USA The link between species invasions and the extinction of natives is widely accepted by scientists as well as ...
Extinctions: Past and Present
1 Extinctions: Past and Present What Role Has Extinction Played in the History of Life? Evolutionary History Has Been Marked by Periodic Mass
Deciphering North American Pleistocene Extinctions
1 DECIPHERING NORTH AMERICAN PLEISTOCENE EXTINCTIONS Donald K. Grayson Department of Anthropology, University of Washington, Seattle, WA 98195 Email: grayson@u.washington.edu Journal of Anthropological Research , in press (2007 JAR Distinguished Lecture) KEY WORDS: Pleistocene extinctions; North ...
Periodicity of extinctions in the geologic past
Proc. NatL. Acad. Sci. USA 81 (1984) 805 terpart) is a reasonable approximation of reality. This con-clusionisbased primarily on the nonparametric test procedure described in this paper, but the other, less rigorous tests are largely confirmatory, especially the best-fit composite cycle (at 26ma ...
Modern Insect Extinctions, the Neglected Majority
Modern Insect Extinctions, the Neglected Majority ROBERT R. DUNN ∗ Ecology and Evolutionary Biology, 569 Dabney Hall, University of Tennessee, Knoxville, TN 37996, U.S.A., emailrdunn1@utk.edu Abstract: Most extinctions estimated to have occurred in the historical past, or predicted to occur in ...
Extinction and the fossil record
Mass extinctions--geological short intervals of time when the Earth's Extinctions in the History of Life , ed. Paul D. Taylor. Published by Cambridge University Press.
Mass extinctions and macroevolution
2005 ThePaleontological Society. All rights reserved. 0094-8373/05/3102-0014/$1.00 Paleobiology, 31(2), 2005, pp. 192-210 Mass extinctions and macroevolution David Jablonski Abstract.—
Biological Extinction in Earth History
Extinction intensity for-the last stage of the cretaceous (Macstrichtian) is indicated for com-Maestrichtian parison. z 10 2ol 0 YT-Tl 0 40 80 120 160 Extinctions per stage However, foraminifera1 extinction in the Tertiary can be viewed differently.
The role of extinction in evolution
This is surp rising in view of the special importance Darwin attcedto extinction, and because the number of species extinctions in the history of life is almost the same as the number of originations; present-day biodiversity Is the result of a trivial surplus of tions, cumulated over millions of years.
Impacts, volcanism and mass extinction: random coincidence or ...
MASS EXTINCTIONS Four relatively sudden extinction events are recognised in the Devonian: the mid-Givetian Taghanicevent, the two Frasnianupper and lower Kellwasserevents[in the lateFrasnian Palmatolepsis gigas (or upper P. rheana) andP. linguiformis zones], and the late Famennian Hangenberg event (in the ...
