This study examined the diversity and ecological distribution of riparian bird species across a climatic gradient in Benin. Riparian bird communities were compared among three climatic zones in Benin Republic from December 2012 to November 2015. The diversity and ecological distribution of riparian bird was examined from a census (inventory) of birds in forests galleries across the three climatic zones in Benin by means of a technique of sampling of limited (punctual) type centred on no listening of 20 minutes in a circular plot of 18 m of beam. A total of 140 species richness belonging to 18 orders and 44 families were recorded across climatic zones. The highest (73) species richness were recorded in Guinean zone, followed by Soudanean zone (70) and Soudano -guinean zones, the lowest (68). Similarly, species diversity was highest in Soudanean zone (H'=5.77 bits) and lowest in Soudano -guinean zone (4,28 bits). But we have a significant difference in species diversity between the study climatic zones, but relative abundance of bird are not differed between zones. Further, diverse bird guilds were recorded varying across the climatic gradients indicating the riparian forest conservation importance. Increasing farmland severs more suitable habitats with dire consequences on the survival of disturbance -sensitive bird species. These researches underpin the need for considering integrated bird conservation strategies and are important for planning local ecotourism activities and to protect riparian forest in Benin. European Scientific Journal February 2017 edition vol.13, No.6 ISSN: 1857 -7881 (Print) e -ISSN 1857 411 Keywords: Biodiversity, Bird communites, Riparian forest, Benin Republic RésuméLes oiseaux sont très sensibles à la structure de la végétation. Dans cette étude, il a été analysé l'influence des zones biogéographiques sur la diversité avienne des galeries forestières au Bénin. Les relevés avifaunistiques ont été effectués dans les trois zones biogéographique à savoir (zone guinéenne, zone soudano -guinéenne et la zone soudanienne) en considérant les types d'utilisation des terres (parcs, forêts classées et zones non protégées) au moyen d'une technique d'échantillonnage de type ponctuel axé sur les points d'écoute de 20 minutes dans 45 stations circulaires de 18 m de rayon. Les indices de la diversité Alpha à travers l'indice de diversité de Shannon et d'équitabilité de Piélou et l'indice de diversité Bêta à travers l'indice de Similarité de Sorensen a été utilisé pour apprécier la biodiversité avienne des galeries forestières suivant chaque zone biogéographique. De même la Gradation Non -Métrique multidimensionnelle (GNM) ou Non -metric multi -dimensional Scaling (NMS) a été utilisée pour analyser les données. Un total de 140 espèces d'oiseaux appartenant à 18 ordres et 44 familles ont été recensées dans les galeries forestières suivant les zones biogéographiques. L'indice de diversité Shannon est plus élevé dans la zone soudanienne et plus faible dans la zone guinéenne. De même, la diversité d...
YABI et al. / Int. J. Biol. Chem. Sci. 11(2): 651-669, 2017 652 Selection of indicator bird species of the riparian forests in Benin (West Africa) ABSTRACT Birds are valuable biological indicators for assessing certain types of natural disturbance. The aim of this study is to determine the indicator species of riparian forests. Birds were observed in the three biogeographical zones: Guinea, Sudano -Guinea and the Sudanian zone using a 20 -minute Point -of -Point sampling technique in 45 circular 18 m radius listening stations from December 2013 to April 2016. The indicator bird species of riparian forests in each biogeographic zone were searched using the indicator value index. A total of 140 bird species have been identified in riparian forests of Benin. Analysis of the indicator species shows that 89 bird species are significantly indicative of riparian forests in Benin. These analyse indicate respectively that 16 species (11.42%) are significantly indicative of the Guinean zone, 31 (21.14%) species are significantly indicative of the Sudanian zone and 27 (19.29%) species are significantly indicative of the Sudano -Guinean zone. This research provides policy makers with reliable ecological indicators on which to base of strategies conservation of habitat and species.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.