caa a22 4500 605527970 CHVBK 20210128100810.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10531-014-0851-y doi (NATIONALLICENCE)springer-10.1007/s10531-014-0851-y Tree diversity on sustainably certified and conventional coffee farms in Central America [Elektronische Daten] [Jeremy Haggar, Michael Asigbaase, Glenda Bonilla, Jose Pico, Alma Quilo] Shade coffee agroforestry systems have the potential to support biodiversity. Sustainable certification of coffee has been promoted as a means to provide incentives to maintain these systems, but as yet there is little evidence if this is effective. We analyzed tree diversity on smallholder organic and conventional farms in buffer zones of three conservation areas in Costa Rica, Guatemala and Nicaragua (the later included some large-scale conventional and Rainforest Alliance certified farms). Organic farms had greater farm level tree species richness and Shannon diversity compared to conventional farms; estimated native tree species richness across the landscape was probably greater on organic farms than conventional in Nicaragua (48 vs. 28 species respectively) and possibly in Guatemala (23 vs. 15 species respectively). Organic farms had higher shade levels and more tree strata than conventional farms. In Guatemala and Nicaragua tree species composition was not closely related to whether farms were organic or conventional, although within composition clusters, organic farms tended to have greater diversity. In contrast, organic and conventional farms in Costa Rica mostly belonged to different tree species clusters. In Nicaragua most large-scale farms, and all Rainforest certified farms, formed a distinct species composition cluster with presence of old-growth forest species and within which Rainforest farms had greater diversity. Tree species composition of the shade seems to be mainly due to management history; but certification effectively differentiates those farms with greater tree diversity. Longer-term monitoring is required to determine whether certification can be an incentive to conserve or expand biodiverse coffee agroforestry systems within the buffer zones around conservation areas. Springer Science+Business Media Dordrecht, 2015 Agroforestry nationallicence Organic nationallicence Rainforest Alliance nationallicence Shade coffee nationallicence Shannon diversity index nationallicence Species richness nationallicence Haggar Jeremy Natural Resources Institute, University of Greenwich, Chatham, UK aut Asigbaase Michael Natural Resources Institute, University of Greenwich, Chatham, UK aut Bonilla Glenda Universidad Nacional Agraria, Managua, Nicaragua aut Pico Jose Tropical Agricultural Research and Higher Education Center, CATIE, Turrialba, Costa Rica aut Quilo Alma Centre for Biodiversity and Envionmental Studies, Universidad del Valle, Guatemala City, Guatemala aut Biodiversity and Conservation Springer Netherlands 24/5(2015-05-01), 1175-1194 0960-3115 24:5<1175 2015 24 10531 https://doi.org/10.1007/s10531-014-0851-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10531-014-0851-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haggar Jeremy Natural Resources Institute, University of Greenwich, Chatham, UK aut NATIONALLICENCE 700 1- Asigbaase Michael Natural Resources Institute, University of Greenwich, Chatham, UK aut NATIONALLICENCE 700 1- Bonilla Glenda Universidad Nacional Agraria, Managua, Nicaragua aut NATIONALLICENCE 700 1- Pico Jose Tropical Agricultural Research and Higher Education Center, CATIE, Turrialba, Costa Rica aut NATIONALLICENCE 700 1- Quilo Alma Centre for Biodiversity and Envionmental Studies, Universidad del Valle, Guatemala City, Guatemala aut NATIONALLICENCE 773 0- Biodiversity and Conservation Springer Netherlands 24/5(2015-05-01), 1175-1194 0960-3115 24:5<1175 2015 24 10531