[ Biologie et Ecologie de la Rousserolle, genre Acrocephalus: Acrocephalidae, Passeriformes du Lac Kivu, Bassin de Bukavu, RDC ]
Volume 10, Issue 1, January 2015, Pages 260–267
Claude MAGADJU AMANI1, Bertin MURHABALE CISIRIKA2, Pascal AKONKWA KAHASHA CISIRIKA3, and Charles KAHINDO MUZUSANGABO4
1 Laboratoire d'ornithologie, Centre de recherche en Sciences Naturelle de Lwiro, D/S Bukavu, Sud Kivu, RD Congo
2 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
3 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
4 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
Original language: French
Copyright © 2015 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The study on the biology and ecology of the ''warbler Acrocephalus: Acrocephalidae, Passeriformes was conducted from March to September 2010 in the Basin of Bukavu on Lake Kivu. 33 specimens of birds were caught with mist nets trapped in aquatic macrophytes.
The observations with the naked eye and using a pair of binoculars have identified the reproductive behavior of the studied species.
Stomach contents were analyzed to highlight the eating habits of the species. It was established that the species of the genus studied have a mainly insectivorous diet. They can complete their prey secondarily by Gamelidae crustaceans, mollusc, gastropods and insect eggs. The reproductive period extends from March to July with a peak in June. The nests are shaped like a hanging basket on aquatic macrophytes. The number of eggs is usually two in each nest.
The morphometric data revealed that sexual dimorphism is not pronounced in these species.
Author Keywords: Lake Kivu, Genus Acrocephalus, Alimentary diet, Reproduction.
Volume 10, Issue 1, January 2015, Pages 260–267
Claude MAGADJU AMANI1, Bertin MURHABALE CISIRIKA2, Pascal AKONKWA KAHASHA CISIRIKA3, and Charles KAHINDO MUZUSANGABO4
1 Laboratoire d'ornithologie, Centre de recherche en Sciences Naturelle de Lwiro, D/S Bukavu, Sud Kivu, RD Congo
2 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
3 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
4 Département de Biologie, Faculté des Sciences, Université Officielle de Bukavu, RD Congo
Original language: French
Copyright © 2015 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The study on the biology and ecology of the ''warbler Acrocephalus: Acrocephalidae, Passeriformes was conducted from March to September 2010 in the Basin of Bukavu on Lake Kivu. 33 specimens of birds were caught with mist nets trapped in aquatic macrophytes.
The observations with the naked eye and using a pair of binoculars have identified the reproductive behavior of the studied species.
Stomach contents were analyzed to highlight the eating habits of the species. It was established that the species of the genus studied have a mainly insectivorous diet. They can complete their prey secondarily by Gamelidae crustaceans, mollusc, gastropods and insect eggs. The reproductive period extends from March to July with a peak in June. The nests are shaped like a hanging basket on aquatic macrophytes. The number of eggs is usually two in each nest.
The morphometric data revealed that sexual dimorphism is not pronounced in these species.
Author Keywords: Lake Kivu, Genus Acrocephalus, Alimentary diet, Reproduction.
Abstract: (french)
L'étude sur la Biologie et l'écologie de la rousserolle « genre Acrocephalus : Acrocephalidae, Passeriformes » a été menée de mars en septembre 2010 dans le Bassin de Bukavu au lac Kivu. 29 individus du genre Acrocephalus ont été capturés grâce aux filets japonais piégés dans les macrophytes aquatiques.
Les observations à l'œil nu et à l'aide d'une paire des jumelles ont permis de relever les comportements reproducteurs des espèces étudiées.
L'espèce Acrocephalus rufescens (Rousserole des cannes) est la plus abondante dans le milieu (79,3%).
Les contenus stomacaux ont été analysés pour ressortir les habitudes alimentaires des espèces.
Il a été établi que les espèces du genre étudié ont un régime alimentaire essentiellement insectivore. Ils peuvent accessoirement compléter leurs proies par les crustacés Gamelidae, les mollusques Gastéropodes et des œufs d'autres insectes.
La période de la reproduction va du mois de mars en juillet avec un pic en juin. Les nids ont la forme d'une corbeille suspendue aux macrophytes aquatiques. Les nombres d'œufs pondus est habituellement deux dans chaque nid.
Les données morpho métriques ont révélé que le dimorphisme sexuel n'est pas prononcé chez ces espèces.
Author Keywords: Lac Kivu, Genre Acrocephalus, Régime alimentaire, Reproduction.
How to Cite this Article
Claude MAGADJU AMANI, Bertin MURHABALE CISIRIKA, Pascal AKONKWA KAHASHA CISIRIKA, and Charles KAHINDO MUZUSANGABO, “Biology and Ecology of the warblers Acrocephalus: Acrocephalidae, Passeriformes of the Lake Kivu, Bukavu bassine, DRC,” International Journal of Innovation and Applied Studies, vol. 10, no. 1, pp. 260–267, January 2015.
