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

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 and William D. Gosling
The modern pollen-vegetation relationships of a tropical forest-savannah mosaic landscape, Ghana, West Africa
Palynology (July 2018) 42 (3): 324-338

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.


ISSN: 0191-6122
EISSN: 1558-9188
Serial Title: Palynology
Serial Volume: 42
Serial Issue: 3
Title: The modern pollen-vegetation relationships of a tropical forest-savannah mosaic landscape, Ghana, West Africa
Affiliation: Open University, School of Environment, Earth and Ecosystems, Milton Keynes, United Kingdom
Pages: 324-338
Published: 201807
Text Language: English
Publisher: American Association of Stratigraphic Palynologists, Dallas, TX, United States
References: 92
Accession Number: 2018-082122
Categories: Paleobotany
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, sketch map
N07°16'00" - N07°17'60", W01°10'60" - W01°08'60"
Secondary Affiliation: Forestry Research Institute of Ghana, GHA, GhanaUniversity of Nottingham, GBR, United KingdomUniversity of Oxford, GBR, United Kingdom
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Abstract, Copyright, American Association of Stratigraphic Palynologists. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2018
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