Results 21 to 30 of about 399,927 (153)
Biogeographic dynamics of graptolite species during the end-Ordovician mass extinction in South China [PDF]
Estonian Journal of Earth Sciences, 2023 Spatial and temporal analysis of geographical biodiversity dynamics and reconstruction of species distribution areas are essential for revealing the patterns of evolution of graptolites and their survival strategies during bio-events.
Qing Chen, Linna Zhang
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AGU Advances, 2022 Many metals present in trace concentrations in the oceans are sensitive to reduction and oxidation reactions (termed redox‐sensitive trace metals or RSTMs) and can therefore be affected during intervals of expanded oceanic anoxia and euxinia (anoxic and ...
T. R. Them II +5 more
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, 2014 This paper is the second of a series that investigates the stochasticity and degeneracy problems that hinder the derivation of the age, mass, extinction, and metallicity of unresolved star clusters in external galaxies when broad-band photometry is used.
de Meulenaer, Philippe +3 more
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Phylogenetic Clustering of Origination and Extinction across the Late Ordovician Mass Extinction.
PLoS ONE, 2015 Mass extinctions can have dramatic effects on the trajectory of life, but in some cases the effects can be relatively small even when extinction rates are high.
Andrew Z Krug, Mark E Patzkowsky
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Bibliography of Henri Fontaine (1954 – 2015) with keywords and appendix [PDF]
Research & Knowledge, 2018 This bibliography lists all publications by Henri Fontaine from 1954 to 2015. Out of 313 titles, he is sole or main author of 279 articles (with reference numbers from 20 to 298) and co-author of the remainder.
Henri Fontaine, Thi Than Hoang
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The Structure of Molecular Clouds: II - Column Density and Mass Distributions [PDF]
, 2010 The formation of stars is inextricably linked to the structure of their parental molecular clouds. Here we take a number of nearby giant molecular clouds (GMCs) and analyse their column density and mass distributions.
Alves +33 more
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Extinction magnitude of animals in the near future
Scientific Reports, 2022 There have been five major mass extinctions and some minor mass extinctions of animals since early animal diversification 540–520 Myr ago. It is said that a sixth mass extinction is already underway.
Kunio Kaiho
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No Consistent Shift in Leaf Dry Mass per Area Across the Cretaceous—Paleogene Boundary
Frontiers in Plant Science, 2022 The Chicxulub bolide impact has been linked to a mass extinction of plants at the Cretaceous—Paleogene boundary (KPB; ∼66 Ma), but how this extinction affected plant ecological strategies remains understudied.
Matthew J. Butrim +8 more
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The Circumstellar Extinction of Planetary Nebulae [PDF]
, 1998 We analyze the dependence of circumstellar extinction on core mass for the brightest planetary nebulae (PNe) in the Magellanic Clouds and M31. We show that in all three galaxies, a statistically significant correlation exists between the two quantities ...
Blocker T. +8 more
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PLoS ONE, 2017 The kind and duration of phylogenetic topological "signatures" left in the wake of macroevolutionary events remain poorly understood. To this end, we examined a broad range of simulated phylogenies generated using trait-biased, heritable speciation ...
Guan-Dong Yang +2 more
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