Leitner, Daniela

[["dc.bibliographiccitation.firstpage","755"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Biotropica"],["dc.bibliographiccitation.lastpage","762"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Cicuzza, Daniele"],["dc.contributor.author","Kessler, Michael"],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Pitopang, Ramadhanil"],["dc.contributor.author","Leitner, Daniela"],["dc.contributor.author","Tjitrosoedirdjo, S."],["dc.date.accessioned","2018-11-07T08:50:19Z"],["dc.date.available","2018-11-07T08:50:19Z"],["dc.date.issued","2011"],["dc.description.abstract","Tropical secondary forest and agroforestry systems have been identified as important refuges for the local species diversity of birds and other animal groups, but little is known about the importance of these systems for terrestrial herbs. In particular, few studies report how the conversion from tropical forest to technified cacao plantation affects the species richness and the community structure of herbs. We conducted surveys in 43 cacao plantations along the border of the Lore Lindu National Park in Central Sulawesi, ranging from agroforests to technified cacao, categorizing the plantations as rustic cacao, planted shade cacao, and technified cacao. We recorded 91 herb species. Of the 74 species determined to species level, 21 were also found in natural forests, while 53 were recorded only in agricultural habitats. Araceae was the most forest-dependent plant family while Asteraceae included the highest number of nonforest species. Overall, the presence of forest species was confined to moderately intensively managed rustic and planted shaded plantations. Distance from the forest, which has been identified as a crucial parameter for the diversity and composition of other taxa in cacao agroforests, only played a minimal role for herbs. Our study suggests that native forest herbs maybe more vulnerable to forest conversion than animal groups. The intensification of cacao plantation management increases the presence of weedy species to the detriment of native forest species."],["dc.description.sponsorship","German Research Foundation (DFG) [SFB-552]; Synthesys NL-TAF [3536]"],["dc.identifier.doi","10.1111/j.1744-7429.2010.00741.x"],["dc.identifier.isi","000296909800014"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21670"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0006-3606"],["dc.title","Conservation Value of Cacao Agroforestry Systems for Terrestrial Herbaceous Species in Central Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1515"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","1530"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Schwendenmann, Luitgard"],["dc.contributor.author","Veldkamp, Edzo"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Köhler, Michael"],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Anas, Iswandi"],["dc.contributor.author","Djajakirana, Gunawan"],["dc.contributor.author","Erasmi, Stefan"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Leitner, Daniela"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Michalzik, Beate"],["dc.contributor.author","Propastin, Pavel"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","van Straaten, Oliver"],["dc.date.accessioned","2017-08-25T10:13:31Z"],["dc.date.accessioned","2020-05-11T13:19:25Z"],["dc.date.available","2017-08-25T10:13:31Z"],["dc.date.available","2020-05-11T13:19:25Z"],["dc.date.issued","2010"],["dc.description.abstract","Agroforestry systems may play a critical role in reducing the vulnerability of farmers' livelihood to droughts as tree-based systems provide several mechanisms that can mitigate the impacts from extreme weather events. Here, we use a replicated throughfall reduction experiment to study the drought response of a cacao/Gliricidia stand over a 13-month period. Soil water content was successfully reduced down to a soil depth of at least 2.5 m. Contrary to our expectations we measured only relatively small nonsignificant changes in cacao (−11%) and Gliricidia (−12%) sap flux densities, cacao leaf litterfall (+8%), Gliricidia leaf litterfall (−2%), soil carbon dioxide efflux (−14%), and cacao yield (−10%) during roof closure. However, cacao bean yield in roof plots was substantially lower (−45%) compared with control plots during the main harvest following the period when soil water content was lowest. This indicates that cacao bean yield was more sensitive to drought than other ecosystem functions. We found evidence in this agroforest that there is complementary use of soil water resources through vertical partitioning of water uptake between cacao and Gliricidia. This, in combination with acclimation may have helped cacao trees to cope with the induced drought. Cacao agroforests may thus play an important role as a drought-tolerant land use in those (sub-) tropical regions where the frequency and severity of droughts is projected to increase."],["dc.identifier.doi","10.1111/j.1365-2486.2009.02034.x"],["dc.identifier.gro","3150086"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6815"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","1354-1013"],["dc.subject","cacao yield; CO2 efflux; fine root biomass; leaf litterfall; plant water uptake; sap flux; shade trees; soil water; throughfall reduction"],["dc.title","Effects of an experimental drought on the functioning of a cacao agroforestry system, Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]