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|Title: ||Effects of Broussonetia papyrifera invasion and land use on vegetation characteristics in a tropical forest of Ghana|
|Authors: ||Adigbli, David M.|
Anning, Alexander K.
Adomako, James K.
Fosu-Mensah, Benedicta Y.
|Keywords: ||Afram Headwaters Forest Reserve|
Forest community characteristics
|Issue Date: ||1-Aug-2017|
|Publisher: ||Journal of Forestry Research|
|Citation: ||Journal of Forestry Research|
|Abstract: ||The purpose of this study was to evaluate the
effects of Broussonetia papyrifera (paper mulberry) invasion
and land use on the floristic composition of a dry semideciduous
forest in Ghana. Forty-five plots (25 m 9 25 m
each), distributed among three land uses—selectively logged
(SL); abandoned farmlands (AF); and an undisturbed
reference (RF)—were surveyed. Results showed lower tree
species richness (S), diversity (H0), evenness (S) and basal
area (BA) in the SL (46, 0.78, 0.32 and 269.12 m2 ha-1,
respectively) and AF (40, 0.53, 0.45, and 131.16 m2 ha-1)
sites compared to the RF site (79, 2.66, 0.87,
963.72 m2 ha-1). Similar patterns were found at the shrub
layer, but no differences were observed at the herb layer.
Non-metric multidimensional scaling ordination revealed
distinct species composition among the land uses. The two
disturbed habitats, SL and AF, were associated with
increased B. papyrifera invasion particularly in the overstory,
with importance value index and mean relative
density of 45 and 65.03%, and 42 and 53.29%, correspondingly.
However, the species was only sparsely represented
in the RF site. Tree density of B. papyrifera
correlated negatively with H0, S, E, BA, and native tree
density and richness. These findings highlight the strong
link between human land use (i.e., logging and slash-andburn
farming), invasion, and vegetation characteristics, and
suggest the need to limit these disturbances to conserve
biodiversity within tropical forest ecosystems.|
|Description: ||This article has been published in Journal of Forestry Research and available at https://doi.org/10.1007/s11676-018-0691-9|
|Appears in Collections:||College of Science|
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