American Journal of Climate Change, 2021, 10, 263-281
https://www.scirp.org/journal/ajcc
ISSN Online: 2167-9509
ISSN Print: 2167-9495
DOI: 10.4236/ajcc.2021.103012 Sep. 2, 2021 263 American Journal of Climate Change
Modelling the Current and Future Spatial
Distribution Area of Shea Tree (Vittelaria
paradoxa C. F. Gaertn) in the Context of Climate
Change in Benin
Yasminath Judith Follone Avaligbé
1*
, Faki Oyédékpo Chabi
1
, Césaire Paul Gnanglè
2
,
Orou Daouda Bello
1
, Ibouraïma Yabi
3
, Léonard Ahoton
1
, Aliou Saïdou
1
1
Integrated Soil and Crop Management Research Unit, Laboratory of Soil Sciences, Crop Sciences School, Faculty of Agronomic
Sciences, University of Abomey-Calavi, Abomey-Calavi, Benin
2
Agricultural Research Centre (CRA) of Agonkanmey, National Agricultural Research Institute of Benin (INRAB), Cotonou,
Benin
3
Laboratory Pierre PAGNEY “Climate, Water, Ecosystem and Development (LACEEDE)”, Department of Geography and Land
Management (DAGT), Faculty of Human and Social Sciences (FASHS), University of Abomey-Calavi, Abomey-Calavi, Benin
Abstract
In Benin, Shea tree (Vitellaria paradoxa) is one of the agroforestry species of
great socio-economic importance for local populations. Given the actual var-
iation in the climate parameters, it is necessary to anticipate the future spatial
distribution of Shea trees as an adaptation strategy and for designing relevant
conservation strategies. The aim of the present research was to evaluate the
influence of climate change on the distribution areas of Shea trees in Benin.
Occurrence data consisting of geographic coordinates of Shea trees in Benin
as well as bioclimatic variables were recorded. Furthemore, additional pres-
ence points were collected from the Global Biodiversity Information Facility
database website. Current and future environmental data for the study area
were obtained from the Africlim website. Bioclimatic variables (moisture and
temperature), monthly maximum and minimum temperatures and annual
rainfall were collected from Worldclim synoptic stations website for the pe-
riod 1970-2000. The aridity index was created from the potential evapotrans-
piration (PET) and annual rainfall, using spatial analysis tools of ArcGIS. The
impact of current and future environmental conditions on favourable Shea
trees’ growing area was assessed following the maximum entropy (MaxEnt)
approach under two climate scenarios (RCP 4.5 and RCP 8.5). Under the
current climate conditions, 80% of Benin territory and 79% of the protected
areas were highly favourable for Shea trees growing and conservation. How-
How to cite this paper: Avaligbé, Y. J. F.,
Chabi, F. O., Gnanglè, C. P., Bello, O. D.,
Yabi, I., Ahoton, L., & Saïdou, A. (2021).
Modelling the Current and Future Spatial
Distribution Area of Shea Tree (Vittelaria
paradoxa C. F. Gaertn) in the Context of
Climate Change in Benin. American Jour-
nal of Climate Change, 10, 263-281.
https://doi.org/10.4236/ajcc.2021.103012
Received: April 26, 2021
Accepted: August 30, 2021
Published: September 2, 2021
Copyright © 2021 by author(s) and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access