0000000000046444

AUTHOR

Jean-renaud Boisserie

showing 3 related works from this author

Biogeochemistry at the crossroads between environment and ecology: use of oxygen isotopes to track environment preference variation in fossil crocodi…

2021

The Shungura Formation of the Lower Omo Valley (southwestern Ethiopia, dated between 3.6 Ma and ⁓1.0 Ma) recorded major environmental change occurred during the Plio-Pleistocene (aridification, landscape opening, intensification of seasonality, change in hydrography). In these conditions, the continuous persistence of several crocodilian species, throughout the time interval and different environments, is explained either by their adaptation to habitats that remain available despite global change, or by their adjustment to new habitats over time. As for extant crocodilians, we suspect that past species were able to occupy a wide range of habitats, so that the diversity of habitats they occu…

[SDV.EE] Life Sciences [q-bio]/Ecology environment[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology
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A la croisée entre environnement et écologie des crocodiliens fossiles : l’utilisation des isotopes stable de l'oxygène pour retracer l’évolution des…

2022

La fluctuation isotopique de certains isotopes stables peut être de puissants outils pour interpréter l’évolution des paléoenvironnements, à condition de comprendre la construction du signal et ses contrôles (écologie, physiologie, géodynamique…). Dans la basse vallée de l’Omo au sud-ouest de l’Ethiopie, la Formation de Shungura a enregistré des changements environnementaux majeurs entre 3,6 Ma et ⁓0,9 Ma : aridification, ouverture des milieux, changements hydrographiques ou encore intensification de la saisonnalité. Malgré ces conditions variables, plusieurs espèces de crocodiliens persistent au cours du temps, s’ajustant aux différents milieux aquatiques. En effet, comme les crocodiliens …

[SDV.EE] Life Sciences [q-bio]/Ecology environment[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology
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Late Miocene to Early Pliocene Chadian vertebrate faunas: palaeoenvironmental and palaeobiogeographical implications

2004

5 pages; International audience

[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy[SDU.STU.ST] Sciences of the Universe [physics]/Earth Sciences/Stratigraphy[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/Paleontology[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/PaleontologyComputingMilieux_MISCELLANEOUS
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