Effects of forest fragmentation on pollination of Mesogyne insignis (Moraceae) in Amani Nature Reserve forests, Tanzania

作者: Moses I. Olotu , Henry J. Ndangalasi , Bruno A. Nyundo

DOI: 10.1111/J.1365-2028.2011.01302.X

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摘要: The efficacy of pollination biology Mesogyne insignis is poorly known in fragmented forests Amani Nature Reserve. This study was conducted to determine the effect forest fragmentation on potential pollinators this endangered species. Three intact and three fragments were selected for study, serving as control. Visual observation insects visiting inflorescences, insect trapping pollinator exclusion experiments methods employed assessing pollination. Most members solitary bee genus Megachile found be M. insignis. Diversity significantly higher than fragments. Overall, total number fruits set fragments, perhaps a reflection diversity abundance an forest. system M. insignis generalist terms systematic group pollinators, may have significant impact pattern. A similar should other Eastern Arc Mountains where grows find out whether are or not. Resume On sait peu de choses l’efficacite la biologie pollinisation dans les forets fragmentees Reserve Naturelle d’Amani. Cette etude ete realisee pour determiner l’effet forestiere sur des pollinisateurs potentiels cette espece menacee. Nous avons choisi trois intactes et forestiers, premieres servant temoins. Pour evaluer pollinisation, nous employe methodes suivantes : l’observation directe insectes visitant pieges experiences d’exclusion pollinisateurs. On decouvert que plupart membres du genre d’abeille solitaire Megachileetaient La diversite etait significativement plus elevee fragmentees. En general, le nombre formes eleve fragmentees, ce qui reflete peut-etre l’abondance grandes une foret intacte. Le systeme est generaliste groupes systematiques pollinisateurs, peut avoir un significatif schema pollinisation. Il faudrait realiser similaire d’autres montagnes l’Arc oriental ou pousse voir si sont semblables pas.

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