000097747 001 __ 97747
000097747 005 __20141121163538.0
000097747 024 8_ $9 artpubuab $9 driver $a oai:ddd.uab.cat:97747
000097747 024 7_ $2 doi $a 10.1344/105.000001701
000097747 035 __ $9 articleid $a 16965728v10n2p181
000097747 041 __ $a eng
000097747 100 __ $a Coiffard, C. $u Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung an der Humboldt-Universität Berlin
000097747 245 1_ $a Influence of latitude and climate on spread, radiation and rise to dominance of early angiosperms during the Cretaceous in the Northern Hemisphere
000097747 520 3_ $a Our aim is to evaluate the influence of climate and latitude on the rise to dominance of angiosperms in space and time during the Cretaceous. The main objectives of the study are: 1) to determine whether a relationship existed between plant biogeographical distribution and Cretaceous climate changes; 2) to explore latitude-dependent forcing on early angiosperm ecology; 3) to propose a mechanism explaining the observed stages of radiation in early angiosperms. The study focuses on 18 Cretaceous megafossil localities and reviews on microfossils in the Northern Hemisphere. A database has been compiled using literature and personal unpublished data. The data document occurrences of micro- and megafossil plant remains including spores, pollen grains, leaves and whole plants. They are placed in context through the use of Cretaceous geographical maps and temperature curves or values. There is a clear correlation between latitude and the composition of Cretaceous floras. Latitudinal vegetation belts fluctuated in concert with climate changes during the Cretaceous. Differences in original plant associations may have driven the gradual plant turnover that resulted in the rise to dominance of early angiosperms during the Cretaceous. Cretaceous climate changes created dispersal bottlenecks. Bottlenecks induced the extinction of some plant groups and the radiation of others. Those that successfully radiated continued to spread.
000097747 540 __ $9 info:eu-repo/semantics/openAccess $a Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l’obra i la creació d’obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l’obra original i es reconegui l’autoria de l’obra original. $u http://creativecommons.org/licenses/by-sa/3.0/es/ 68.
000097747 546 __ $a Anglès
000097747 599 __ $a recerca
000097747 653 1_ $a Early angiosperms
000097747 653 1_ $a Radiation
000097747 653 1_ $a Rise to dominance
000097747 653 1_ $a Palaeobotany
000097747 653 1_ $a Palynology
000097747 653 1_ $a Palaeogeography
000097747 653 1_ $a Palaeoclimates
000097747 653 1_ $a Cretaceous
000097747 653 1_ $a North Hemisphere
000097747 655 _4 $a info:eu-repo/semantics/article
000097747 655 _4 $a info:eu-repo/semantics/publishedVersion
000097747 700 __ $a Gómez, B. $u Université Lyon 1
000097747 773 __ $g Vol. 10, Núm. 2 (June 2012), p. 181-188 $t Geologica acta $x 1696-5728
000097747 856 40 $p 8 $s 269232 $u http://ddd.uab.cat/pub/geoact/geoact_a2012m6v10n2/geoact_a2012m6v10n2p181.pdf
000097747 973 __ $f 0181 $l 188 $m June $n 2 $v 10 $x geoact_a2012m6v10n2 $y 2012
000097747 980 __ $a ARTPUB $b GEOACT $b UAB