[Lateglacial and Holocene vegetation history in the mountain range of central Pyrenees].
We present the pollen analysis of a new sedimentary sequence taken at La Pouretère ( 1720 m), in the mountain vegetation zone of the Marcadau valley (central Pyrenees). The Lateglacial and Holocene chronology is supported by six 14C-dating results. The complementary analysis of some vegetal macroremains, stomata, pollen-clusters and the use of pollen influx allows us to elucidate the dynamic of mountain species such as Pinus and specially Abies but also to infer the unusual part played by Betula at the beginning of the Postglacial period.
Aubert
Sandrine
S
Laboratoire "Dynamique de la biodiversité", UMR Ladybio, université Paul-Sabatier-Toulouse-3, 29, rue Jeanne-Marvig, BP 4349, 31055 Toulouse 4, France. aubert@cict.fr
Belet
Jean-Marc
JM
Bouchette
Anne
A
Otto
Thierry
T
Dedoubat
Jean-Jacques
JJ
Fontugne
Michel
M
Jalut
Guy
G
D005580:Fossils; D005602:France; D011058:Pollen