Open AccessLong‐distance pollen transport from North America to Greenland in spring
Author(s) -
Rousseau DenisDidier,
Schevin Patrick,
Ferrier Jackie,
Jolly Dominique,
Andreasen Tore,
Ascanius Svend Erik,
Hendriksen SvendErik,
Poulsen Ulrik
Publication year - 2008
Publication title -
journal of geophysical research: biogeosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2007jg000456
Subject(s) - tundra , pollen , arctic , taiga , deposition (geology) , physical geography , spring (device) , geology , environmental science , geography , oceanography , ecology , paleontology , forestry , sediment , engineering , biology , mechanical engineering
In the Arctic domain, there is evidence for very long distance transport of pollen grains from boreal forests to tundra environments. However, the sampling protocol used in earlier studies did not allow the determination of precise timing of the deposition of exotic grains. The ongoing “Epilobe” project monitors the deposition of exotic grains on the western and eastern coasts of Greenland utilizing wind filters, which are changed weekly throughout the entire year. A combination of the identification of tree pollen grains, the dates of deposition of the pollen on the filters, and the distribution map of the trees identified, allows the selection of modeled backward trajectories of air parcels responsible for the capture of the grains in the growing area of northeastern North America and their long‐distance transport to Greenland. A survey of data obtained from four stations, analyzed during 2004 and 2005, indicates the occurrence of a general pattern every spring, which follows the main cyclone tracks reaching this Arctic region.