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标题：Parasitism of host trees by the Loranthaceae in the region of Douala (Cameroon)
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作者：Dibong Siegfried Didier ; Din Ndongo ; Priso Richard Jules 等
期刊名称：African Journal of Environmental Science and Technology
电子版ISSN：1996-0786
出版年度：2008
卷号：2
期号：11
页码：371-378
语种：English
出版社：Academic Journals
摘要：TheLoranthaceaeconstitute the most important parasite plants that cause variable damages: morphological, technological, ecological and socio-economic. These numerous and damaging effects make some parasitic angiosperms true agronomic threats, especially in developing countries. TheLoranthaceaeis represented in Cameroon by 26 species gathered into 7 genus. The study area includes four sites: a traditional plantation ofCola nitidasituated at Penja (70 km Nord of Douala), the main road to Douala airport, one quarter (Logbessou) and Makondo village (80 km East of Douala) in an orchard dominated byCitrus. A total of 2643 individuals of DBH (diameter at breast height) greater or equal to 5 cm were inventoried. 637 individuals were parasitized. Eight known species were identified.Phragmanthera capitatais more frequent and more abundant (76.14%). The infested host trees belong to 16 species gathered into 12 genus and 10 families. The most parasitized host family isSterculiaceae. The most sensitive host species to the parasitism ofLoranthaceaeisP. americana(21.51%), followed byC. nitida(17.27%) andTerminalia mantaly(13.65%).Lauraceaeis infested by 7Loranthaceaeout of 8 parasites investigated. The consequences of the parasitism of theLoranthaceaedemonstrate the need for establishing comprehensive ecosystem management programs.
关键词：Host trees; inventory;Loranthaceae; parasites plants