Abstract booklet - gtö – Society for Tropical Ecology

214 SCIENTIFIC POSTER SESSION | FOYERSCIENTIFIC POSTER SESSION | FOYER215Though the fact that some of these sources have been established and are welldocumented, there is still a gap in knowledge concerning the sources of otheremissions and their contribution to the total amount of aerosols depositedin the RBSF research area. Therefore, analyses of data from more accuratedatabases and the combination with remote sensing and field techniques areneeded to bring new insights into the role of long range transported aerosols.Results using newly created databases and methods to handle these data for theanalysis of aerosol transport from the sources to the study area are presented.Topic: Link for survival - Science and the conservation of tropical landscapesAVIFAUNA ASSOCIATED TO NATIVE FOREST AND FORESTPLANTATIONS OF EXOTIC CONIFERS IN THE RESERVA FORESTALGRECIA, COSTA RICAMaría Alejandra Maglianesi 11BiK-F Goethe Univ Frankfurt, Frankfurt am Main, DE, mmaglianesi@uned.ac.crForest plantations of exotic conifers have been used as a managementWEDNESDAY | FOYERstrategy for restoring forests in many areas of the Neotropics. However, thereis a remarkable lack of information of these plantations on the value forconservation biodiversity. To evaluate these plantations as habitat for wildlife, Istudied bird communities in native secondary forest and in plantation of exotictree species (Pinus oocarpa and Cupressus lusitanica) in the Reserva ForestalGrecia, Costa Rica. Bird assemblage composition, richness, abundance, diversity,and evenness were compared between habitats using the fixed-radius pointcount method. Fieldwork was conducted from September 2008 to May 2009. Atotal of 743 birds of 79 species corresponding to 10 orders and 25 families wererecorded. The bird composition varied across habitats, sharing 51.9% of thesame bird species. Although I found no significant differences in the patternsof bird diversity or evenness, the native forest had a greater bird richness andabundance than the plantation. This could be explained by the higher spatialheterogeneity and productivity in the native forest than in the plantation. Onthe basis of these results, secondary native forests seem to have a greater valuefor bird conservation than conifer plantations.Therefore, some management measures could favor bird communities in theReserva Forestal Grecia, such as the implementation of strategies for ecologicalrestoration in order to gradually replace the exotic vegetation by native specieswhich offer more resources available for bird populations. The continuationof studies in plantations of exotic conifers may provide more knowledge thatwill allow a better understanding of the role played by exotic plantations inmaintaining bird populations and biodiversity in general.Wednesday WEDNESDAY 16:00 | FOYER | FoyergtöSociety for Tropical Ecology | Gesellschaft für Tropenökologie e.V. Status and future of tropical biodiversity | Frankfurt, 21 - 24 February 2011gtö