Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso
The Banfora cliff are home to a wealth of flora and fauna. Endemic species are found in its forests, as well as species of outstanding interest such as Albizia dinklagei, Acridocarpus chevalieri or Warneckea fascicularis, which are found nowhere else in Burkina-Faso. This is also the case with some...
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ftird:oai:ird.fr:fdi:010053408 2023-05-15T18:05:44+02:00 Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso César, J. Bouyer, J. Granjon, Laurent Akoudjin, M. Guerrini, L. Louppe, D. 2010 http://www.documentation.ird.fr/hor/fdi:010053408 FR fre http://www.documentation.ird.fr/hor/fdi:010053408 oai:ird.fr:fdi:010053408 César J., Bouyer J., Granjon Laurent, Akoudjin M., Guerrini L., Louppe D. Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso. Bois et Forêts des Tropiques, 2010, p. 43-55. sandstone cliff dynamics vegetation bioindicator small mammals insects text 2010 ftird 2020-08-21T06:56:47Z The Banfora cliff are home to a wealth of flora and fauna. Endemic species are found in its forests, as well as species of outstanding interest such as Albizia dinklagei, Acridocarpus chevalieri or Warneckea fascicularis, which are found nowhere else in Burkina-Faso. This is also the case with some insect species, such as Dicronorhina kouensis or Stephanorhina guttata. However, these forests are under threat, especially around Bobo-Dioulasso where the native fauna has already become partly extinct. Comparisons were made between the Banfora cliff sites and between these and other forest sites in the Bobo-Dioulasso region. Biological diversity is very high among these forests, and the dispersion of species suggests that they are remnants of much larger forest areas. The forest vegetation on the cliffs appears to be of three types: dense dry forest, characterised by Guibourtia copallifera, which may represent the original old-growth forest stock before it was invaded by savannah vegetation; dense humid forest, represented by most of the riparian species, which probably evolved along the river network from the humid forest mass; and relict old-growth mountain flora that depends on the sandstone cliff environment, with Warneckea fascicularis, to which rock species could be attached, as the sole representative. The rodent community in the Banfora cliff forest sites is a mixture of typically forest-dwelling species (particularly Praomys rostratus) in the least disturbed zones and highly anthropophilous species (like Rattus rattus) in the sites most severely degraded by human activities. Most insect species probably originated in the humid forests of Cote d'Ivoire, with some influence from Mali, like Coeliades aeschylus, or Togo, like Dicronorhina kouensis, both of which tend to be found in the Guinean savannah zone close to gallery forests. As these species are neither found in the South, nor respectively in the East and the West of Burkina Faso, the Banfora cliffs may be a meeting point for different types of fauna, hence its outstanding biodiversity interest. Text Rattus rattus IRD (Institute de recherche pour le développement): Horizon La Falaise ENVELOPE(-57.248,-57.248,51.483,51.483) |
institution |
Open Polar |
collection |
IRD (Institute de recherche pour le développement): Horizon |
op_collection_id |
ftird |
language |
French |
topic |
sandstone cliff dynamics vegetation bioindicator small mammals insects |
spellingShingle |
sandstone cliff dynamics vegetation bioindicator small mammals insects César, J. Bouyer, J. Granjon, Laurent Akoudjin, M. Guerrini, L. Louppe, D. Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
topic_facet |
sandstone cliff dynamics vegetation bioindicator small mammals insects |
description |
The Banfora cliff are home to a wealth of flora and fauna. Endemic species are found in its forests, as well as species of outstanding interest such as Albizia dinklagei, Acridocarpus chevalieri or Warneckea fascicularis, which are found nowhere else in Burkina-Faso. This is also the case with some insect species, such as Dicronorhina kouensis or Stephanorhina guttata. However, these forests are under threat, especially around Bobo-Dioulasso where the native fauna has already become partly extinct. Comparisons were made between the Banfora cliff sites and between these and other forest sites in the Bobo-Dioulasso region. Biological diversity is very high among these forests, and the dispersion of species suggests that they are remnants of much larger forest areas. The forest vegetation on the cliffs appears to be of three types: dense dry forest, characterised by Guibourtia copallifera, which may represent the original old-growth forest stock before it was invaded by savannah vegetation; dense humid forest, represented by most of the riparian species, which probably evolved along the river network from the humid forest mass; and relict old-growth mountain flora that depends on the sandstone cliff environment, with Warneckea fascicularis, to which rock species could be attached, as the sole representative. The rodent community in the Banfora cliff forest sites is a mixture of typically forest-dwelling species (particularly Praomys rostratus) in the least disturbed zones and highly anthropophilous species (like Rattus rattus) in the sites most severely degraded by human activities. Most insect species probably originated in the humid forests of Cote d'Ivoire, with some influence from Mali, like Coeliades aeschylus, or Togo, like Dicronorhina kouensis, both of which tend to be found in the Guinean savannah zone close to gallery forests. As these species are neither found in the South, nor respectively in the East and the West of Burkina Faso, the Banfora cliffs may be a meeting point for different types of fauna, hence its outstanding biodiversity interest. |
format |
Text |
author |
César, J. Bouyer, J. Granjon, Laurent Akoudjin, M. Guerrini, L. Louppe, D. |
author_facet |
César, J. Bouyer, J. Granjon, Laurent Akoudjin, M. Guerrini, L. Louppe, D. |
author_sort |
César, J. |
title |
Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
title_short |
Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
title_full |
Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
title_fullStr |
Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
title_full_unstemmed |
Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso |
title_sort |
les relictes forestières de la falaise de banfora : un peuplement original au voisinage de bobo-dioulasso, burkina faso |
publishDate |
2010 |
url |
http://www.documentation.ird.fr/hor/fdi:010053408 |
long_lat |
ENVELOPE(-57.248,-57.248,51.483,51.483) |
geographic |
La Falaise |
geographic_facet |
La Falaise |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_relation |
http://www.documentation.ird.fr/hor/fdi:010053408 oai:ird.fr:fdi:010053408 César J., Bouyer J., Granjon Laurent, Akoudjin M., Guerrini L., Louppe D. Les relictes forestières de la falaise de Banfora : un peuplement original au voisinage de Bobo-Dioulasso, Burkina Faso. Bois et Forêts des Tropiques, 2010, p. 43-55. |
_version_ |
1766177239781605376 |