title: Asynchronous terrestrial and marine signals of climate change during Heinrich events.
abstract: Tropical regions have been reported to play a key role in climate dynamics. To date, however, there are uncertainties in the timing and the amplitude of the response of tropical ecosystems to millennial-scale climate change. We present evidence of an asynchrony between terrestrial and marine signals of climate change during Heinrich events preserved in marine sediment cores from the Brazilian continental margin. The inferred time lag of about 1000 to 2000 years is much larger than the ecological response to recent climate change and appears to be related to the nature of hydrological changes.
authors.affiliation: Zentrum für Marine Tropenökologie, Fahrenheitstrasse 6, D-28359 Bremen, Germany. tim.jennerjahn@zmt-bremen.de
authors.forename: Tim C
authors.initials: TC
authors.lastname: Jennerjahn
authors.forename: Venugopalan
authors.initials: V
authors.lastname: Ittekkot
authors.forename: Helge W
authors.initials: HW
authors.lastname: Arz
authors.forename: Hermann
authors.initials: H
authors.lastname: Behling
authors.forename: Jürgen
authors.initials: J
authors.lastname: Pätzold
authors.forename: Gerold
authors.initials: G
authors.lastname: Wefer
mesh_terms: D001267:Atlantic Ocean; D001938:Brazil; D002247:Carbon Isotopes; D002980:Climate; D017753:Ecosystem; D029624:Ferns; D019015:Geologic Sediments; D009587:Nitrogen Isotopes; D010944:Plants; D011058:Pollen; D011891:Rain; D012623:Seawater; D013170:Spores; D013995:Time; D014197:Trees; D014329:Tropical Climate
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes