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

Julier, Adele C.M. and Jardine, Phillip E. and Adu-Bredu, Stephen and Coe, Angela L. and Duah-Gyamfi, Akwasi and Fraser, Wesley T. and Lomax, Barry H. and Malhi, Yadvinder and Moore, Sam and Owusu-Afriyie, Kennedy and Gosling, William D. (2017) The modern pollen-vegetation relationships of a tropical forest-savannah mosaic landscape, Ghana, West Africa. Palynology . ISSN 1558-9188

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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.

Item Type: Article
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.com/10.1080/01916122.2017.1356392
Keywords: Pollen; Transitions; Poaceae; Savannah; Ghana; Palaeoecology; Bosumtwi
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences
Identification Number: https://doi.org/10.1080/01916122.2017.1356392
Depositing User: Eprints, Support
Date Deposited: 03 Aug 2017 09:42
Last Modified: 10 Aug 2018 04:30
URI: http://eprints.nottingham.ac.uk/id/eprint/44631

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