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Biological selectivity of extinction
2005Selective survival across major extinction event horizons is both a bothersome puzzle and an opportunity to delimit the biologically interesting question of causality. Heritable differences in characters may have predictable consequences in terms of differential species survival.
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Biological Extinction in Terms of Overadaptation
1991Extinction has been a common phenomenon of the biosphere during the Earth’s past but it is also an enigmatic process in biological evolution. Various and numerous theories have been put forward to explain biological extinction, especially to explain mass extinction which marks the biostratigraphical boundaries in geohistory. Most of these explanations,
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Extinction in Systems of Interacting Biological Populations
1999In Sect. 4.3 we already dealt with a single population that has a stochastic logistic dynamics. In this chapter we fully analyse two examples of two-dimensional systems: a prey-predator system and the epidemiological problem of contact between infectives and susceptibles. The method we use is rather complex.
Johan Grasman, Onno A. van Herwaarden
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Extinction and backscatter cross sections of biological materials
SPIE Proceedings, 2007Aerosol backscatter and extinction cross-sections are required to model and evaluate the performance of both active and passive detection systems. A method has been developed by which begins with laboratory measurements of thin films and suspensions of biological material to obtain the complex index refraction of the film from the UV to the LWIR ...
M. E. Thomas +3 more
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Journal of the Geological Society, 2000
The Pliensbachian–Toarcian bivalve mass extinction in the Andean Basin of South America is characterized by a sharp drop in species diversity, caused mainly by extinction of endemics, and an extended lag phase. Whilst analysis of community attributes such as guild diversity, number of associations, and species richness of samples constituting ...
M. ABERHAN, F. T. FÜRSICH
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The Pliensbachian–Toarcian bivalve mass extinction in the Andean Basin of South America is characterized by a sharp drop in species diversity, caused mainly by extinction of endemics, and an extended lag phase. Whilst analysis of community attributes such as guild diversity, number of associations, and species richness of samples constituting ...
M. ABERHAN, F. T. FÜRSICH
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Delayed biological recovery from extinctions throughout the fossil record
Nature, 2000How quickly does biodiversity rebound after extinctions? Palaeobiologists have examined the temporal, taxonomic and geographic patterns of recovery following individual mass extinctions in detail, but have not analysed recoveries from extinctions throughout the fossil record as a whole.
J W, Kirchner, A, Weil
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Fitness Optimization and Decay of Extinction Rate Through Biological Evolution
Physical Review Letters, 1995We present a simple theoretical model of evolution featuring a decreasing extinction rate due to an increasing average fitness of the species. The dynamics is based on a random walk on a rugged fitness landscape, with evolutionary jumps for each species triggered by the achievement of fitness records during the walk.
, Sibani, , Schmidt, , Alstrom
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Relationship between biological extinctions and geomagnetic reversals
Geology, 1980It has been repeatedly suggested that reversals of Earth9s magnetic field play a controlling role in evolution. Empirical evidence put forward to support this hypothesis has come from comparisons of the stratigraphic positions of microfossil extinctions with individual reversals and from comparisons of various estimates of changes in Phanerozoic ...
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Research progress of biological extinction materials
Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 2023Guolong Chen +8 more
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Engineered jumpers overcome biological limits via work multiplication
Nature, 2022Elliot W Hawkes +2 more
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