Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1

Details Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1 Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004gecoa..68..411v&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 68, Issue 3, pp.411-422

Other

5

Scientific paper

Angola Basin and Cape Basin (southeast Atlantic) surface sediments and sediment cores show that maxima in the abundance of taraxerol (relative to other land-derived lipids) covary with maxima in the relative abundance of pollen from the mangrove tree genus Rhizophora and that in the surface sediments offshore maxima in the relative abundance of taraxerol occur at latitudes with abundant coastal mangrove forests. Together with the observation that Rhizophora mangle and Rhizophora racemosa leaves are extraordinarily rich in taraxerol, this strongly indicates that taraxerol can be used as a lipid biomarker for mangrove input to the SE Atlantic. The proxy-environment relations for taraxerol and Rhizophora pollen down-core show that increased taraxerol and Rhizophora pollen abundances occur during transgressions and periods with a humid climate. These environmental changes modify the coastal erosion and sedimentation patterns, enhancing the extent of the mangrove ecosystem and/or the transport of mangrove organic matter offshore. Analyses of mid-Pleistocene sediments show that interruption of the pattern of taraxerol maxima during precession minima occurs almost only during periods of low obliquity. This demonstrates the complex environmental response of the interaction between precession-related humidity cycles and obliquity-related sea-level changes on mangrove input.

Affiliated with

Also associated with

No associations

Rating

Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems 1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1018964