Pollen dispersal properties of Poaceae and Cyperaceae: First estimates of their absolute pollen productivities

Sjögren, Per; van der Knaap, Willem Oscar; van Leeuwen, Jacqueline F.N. (2015). Pollen dispersal properties of Poaceae and Cyperaceae: First estimates of their absolute pollen productivities. Review of palaeobotany and palynology, 216, pp. 123-131. Elsevier 10.1016/j.revpalbo.2015.02.004

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Pollen-trap results from the Swiss Alps 1996–2009 were used to assess the pollen dispersal–deposition properties of Poaceae (grasses) and Cyperaceae (sedges). Dispersal parameter values were investigated for a modified version of the Prentice–Sugita pollen dispersal–deposition model. Appropriate values (i.e. realistic in the field and allowing realistic modelling results) for wind speed are suggested to be in the range of 3–7 m s− 1 and for pollen an injection height of 0.03–0.1 m above the ground. The appropriate range of pollen injection height values for grasses and sedges differs from that of trees in the same area, suggesting different pollen dispersal properties between herbs and trees. In addition, logarithmic weighting of the vegetation was tested as an alternative to the modified Prentice–Sugita model. This yielded very similar results, suggesting that the use of such much simpler approximations of the pollen–vegetation relationship is a plausible alternative. Based on the modified Prentice–Sugita model, absolute pollen productivity for Poaceae was estimated to 7300 ± 400 grains cm− 2 year− 1 (1 SE). The data basis for Cyperaceae is smaller than for Poaceae, but the dispersal parameter values determined as appropriate for Poaceae yield good results. Absolute pollen productivity for Cyperaceae was estimated to 6300 ± 1100 grains cm− 2 year− 1 (1 SE).

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

van der Knaap, Willem Oscar and van Leeuwen, Jacqueline

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0034-6667

Publisher:

Elsevier

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

19 Jun 2015 11:38

Last Modified:

08 Sep 2015 11:27

Publisher DOI:

10.1016/j.revpalbo.2015.02.004

Uncontrolled Keywords:

Poaceae, Cyperaceae, Pollen dispersal, Pollen trap, Absolute pollen productivity, Swiss Alps

BORIS DOI:

10.7892/boris.69663

URI:

https://boris.unibe.ch/id/eprint/69663

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