0000000000433171

AUTHOR

Jasper Mbae Kirika

showing 2 related works from this author

Fragmentation and local disturbance of forests reduce frugivore diversity and fruit removal in Ficus thonningii trees

2008

Clearance, fragmentation, and degradation of tropical forests have resulted in declines of biodiversity. This loss of biodiversity is endangering important ecosystem processes such as seed dispersal. If anthropogenic disturbances affect seed dispersal of keystone plants, effects on tropical ecosystems might be especially pronounced. We studied frugivore assemblages and fruit removal from 25 Ficus thonningii trees in the heavily fragmented and disturbed Kakamega Forest, western Kenya. During 400 observation hours we recorded 36 frugivores visiting F. thonningii trees. We recorded significantly fewer frugivorous species in fragments compared to the main forest and in highly, compared to littl…

Fragmentation (reproduction)FrugivoreEcosystem processAgroforestryEcologySeed dispersalBiodiversityEcosystemFicus thonningiiBiologyKeystone speciesbiology.organism_classificationEcology Evolution Behavior and SystematicsBasic and Applied Ecology
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Effects of Local Disturbance of Tropical Forests on Frugivores and Seed Removal of a Small-Seeded Afrotropical Tree

2008

Small-scale, local disturbance of tropical forests, for example from selective logging, is widespread, but its effects on biodiversity and ecosystem function have rarely been studied. In 3 East African tropical rainforests, we investigated the effect of different levels of local forest disturbance on the frugivore community and on tree visitation and fruit removal rates of the small-seeded tree Celtis durandii. We quantified birds and primates in little and heavily disturbed sites, distinguishing between forest specialists, forest generalists, and forest visitors. We quantified frugivorous tree visitors and seed removal rates of C. durandii trees in the same sites. Forest disturbance reduce…

EcologyEcologySeed dispersalBiodiversityfood and beveragesTropicsRainforestBiologyGeneralist and specialist speciesFrugivoreSpecies richnessEcology Evolution Behavior and SystematicsNature and Landscape ConservationTropical rainforestConservation Biology
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