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The modern pollen-vegetation relationships of a tropical forest-savannah mosaic landscape, Ghana, West Africa.

Julier, Adele C.M.; Jardine, Phillip E.; Adu-Bredu, Stephen; Coe, Angela L.; Duah-Gyamfi, Akwasi; Fraser, Wesley T.; Lomax, Barry H.; Malhi, Yadvinder; Moore, Sam; Owusu-Afriyie, Kennedy; Gosling, William D.

Authors

Adele C.M. Julier

Phillip E. Jardine

Stephen Adu-Bredu

Angela L. Coe

Akwasi Duah-Gyamfi

Wesley T. Fraser

Barry H. Lomax

Yadvinder Malhi

Sam Moore

Kennedy Owusu-Afriyie

William D. Gosling



Abstract

Transitions between forest and savannah vegetation types in fossil pollen records are often poorly understood due to over-production by taxa such as Poaceae and a lack of modern pollen–vegetation studies. Here, modern pollen assemblages from within a forest–savannah transition in West Africa are presented and compared, their characteristic taxa discussed, and implications for the fossil record considered. Fifteen artificial pollen traps were deployed for 1 year, to collect pollen rain from three vegetation plots within the forest–savannah transition in Ghana. High percentages of Poaceae and Melastomataceae/Combretaceae were recorded in all three plots. Erythrophleum suaveolens characterised the forest plot, Manilkara obovata the transition plot and Terminalia the savannah plot. The results indicate that Poaceae pollen influx rates provide the best representation of the forest–savannah gradient, and that a Poaceae abundance of > 40 % should be considered as indicative of savannah-type vegetation in the fossil record.

Journal Article Type Article
Publication Date Jul 3, 2018
Journal Palynology
Print ISSN 0191-6122
Electronic ISSN 1558-9188
Publisher Taylor & Francis Open
Peer Reviewed Peer Reviewed
Volume 42
Issue 3
Pages 324-338
APA6 Citation Julier, A. C., Jardine, P. E., Adu-Bredu, S., Coe, A. L., Duah-Gyamfi, A., Fraser, W. T., …Gosling, W. D. (2018). The modern pollen-vegetation relationships of a tropical forest-savannah mosaic landscape, Ghana, West Africa. Palynology, 42(3), 324-338. https://doi.org/10.1080/01916122.2017.1356392
DOI https://doi.org/10.1080/01916122.2017.1356392
Keywords Pollen; Transitions; Poaceae; Savannah; Ghana; Palaeoecology; Bosumtwi
Publisher URL https://www.tandfonline.com/doi/full/10.1080/01916122.2017.1356392
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This is an Accepted Manuscript of an article published by Taylor & Francis in Palynology on 10/08/2017, available online: http://www.tandfonline....0/01916122.2017.1356392

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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