Kupsch, Denis

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Bird Conservation International"],["dc.contributor.author","Dueker, Sascha"],["dc.contributor.author","Kupsch, Denis"],["dc.contributor.author","Bobo, Kadiri Serge"],["dc.contributor.author","Heymann, Eckhard W."],["dc.contributor.author","Waltert, Matthias"],["dc.date.accessioned","2019-07-25T09:58:49Z"],["dc.date.available","2019-07-25T09:58:49Z"],["dc.date.issued","2019"],["dc.description.abstract","Congo Grey Parrot Psittacus erithacus densities in oil palm plantation, agroforestry mosaic and protected forest in Southwest Cameroon – ERRATUM - SASCHA DUEKER, DENIS KUPSCH, SERGE KADIRI BOBO, ECKHARD W. HEYMANN, MATTHIAS WALTERT"],["dc.identifier.doi","10.1017/S0959270919000297"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62043"],["dc.language.iso","en"],["dc.relation.iserratumof","/handle/2/73360"],["dc.relation.issn","0959-2709"],["dc.relation.issn","1474-0001"],["dc.title","Congo Grey Parrot Psittacus erithacus densities in oil palm plantation, agroforestry mosaic and protected forest in Southwest Cameroon – ERRATUM"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","20"],["dc.bibliographiccitation.journal","Biological Conservation"],["dc.bibliographiccitation.lastpage","28"],["dc.bibliographiccitation.volume","230"],["dc.contributor.author","Kupsch, Denis"],["dc.contributor.author","Vendras, Elleni"],["dc.contributor.author","Ocampo-Ariza, Carolina"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Motombi, Francis Njie"],["dc.contributor.author","Bobo, Kadiri Serge"],["dc.contributor.author","Waltert, Matthias"],["dc.date.accessioned","2019-07-23T09:28:36Z"],["dc.date.available","2019-07-23T09:28:36Z"],["dc.date.issued","2019"],["dc.description.abstract","Our knowledge on the relationship between tropical forest cover and biotic communities is still limited. Understanding the relationship between forest cover and bird functional guilds may serve as a valuable tool to assess how much forest is necessary to conserve significant portions of typical forest assemblages. We sampled birds (198 species, 6883 encounters) along a full gradient of deforestation across 4000 km2 of forest-dominated landscapes in Southwest Cameroon and applied multivariate adaptive regression splines to model α-, β- and γ-richness of guilds in relation to forest cover. Overall, β- and γ-richness remained constant above 42% forest cover. However, total α-richness as well as all richness partitions of Guinea-Congo biome-restricted, large-bodied arboreal foliage gleaning, tree nesting, and frugivorous species declined when forest cover was below 74%. Moreover, ant-followers and terrestrial insectivores showed their highest diversity at zero deforestation. In contrast, open-land, granivorous, opportunistic insectivorous and widespread species strongly increased below 42% forest cover. High β-diversity at intermediate deforestation conditions indicate that the sharp decline of original forest bird diversity may only be compensated by habitat and foraging generalists, which benefit from high habitat heterogeneity. Our study implies that Afrotropical forest bird diversity decreases non-linearly with forest loss. Critical habitat thresholds estimated by us at above 70% are much higher than those previously reported and highlight the need to integrate substantial proportions of natural vegetation within wildlife friendly farming schemes."],["dc.identifier.doi","10.1016/j.biocon.2018.12.001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61905"],["dc.language.iso","en"],["dc.relation.issn","0006-3207"],["dc.title","High critical forest habitat thresholds of native bird communities in Afrotropical agroforestry landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","156"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Bird Conservation International"],["dc.bibliographiccitation.lastpage","167"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Dueker, Sascha"],["dc.contributor.author","Kupsch, Denis"],["dc.contributor.author","Bobo, Kadiri Serge"],["dc.contributor.author","Heymann, Eckhard W."],["dc.contributor.author","Waltert, Matthias"],["dc.date.accessioned","2020-12-10T15:22:20Z"],["dc.date.available","2020-12-10T15:22:20Z"],["dc.date.issued","2019"],["dc.description.abstract","The Congo Grey Parrot Psittacus erithacus has experienced a severe population breakdown in recent decades. The rainforests of the Korup region in Southwest Cameroon may harbour a large population of this species, but density and population estimates from this area remain controversial. Before the 2016 breeding season, we surveyed Grey Parrots along transects (621.1 km survey effort) in three adjacent landscape types: primary forest in Korup National Park (KNP), smallholder agroforestry matrix (AFM), and industrial oil palm plantation (OPP). We also collected information on the trees used for nesting, feeding and roosting. Using Distance analysis, we estimated relatively low densities of stationary flocks, ranging from 0.30 ind./km ² in KNP, over 0.82 ind./km ² in OPP to 2.70 ind./km ² in the AFM. Parrots were observed feeding or roosting in 17 tree species, of which 15 were located in AFM alone. Feeding was most often observed on cultivated Elaeis guineensis and Dacryodes edulis , but never in maize. The detected parrot densities probably reflect declines within the period 2008–2016, suggesting that the species’ recent IUCN uplisting to ‘Endangered’ and transfer to CITES Appendix I was indeed justified. Our results also suggest that traditional smallholder agroforestry may play a role in habitat conservation strategies, since these forms of cultivation may maintain important breeding and feeding opportunities for Congo Grey Parrots."],["dc.identifier.doi","10.1017/S0959270919000194"],["dc.identifier.eissn","1474-0001"],["dc.identifier.issn","0959-2709"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73360"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.haserratum","/handle/2/62043"],["dc.relation.issn","0959-2709"],["dc.relation.issn","1474-0001"],["dc.title","Congo Grey Parrot Psittacus erithacus densities in oil palm plantation, agroforestry mosaic and protected forest in Southwest Cameroon"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","26"],["dc.bibliographiccitation.journal","Basic and Applied Ecology"],["dc.bibliographiccitation.lastpage","37"],["dc.bibliographiccitation.volume","39"],["dc.contributor.author","Ocampo-Ariza, Carolina"],["dc.contributor.author","Denis, Kupsch"],["dc.contributor.author","Njie Motombi, Francis"],["dc.contributor.author","Bobo, Kadiri Serge"],["dc.contributor.author","Kreft, Holger"],["dc.contributor.author","Waltert, Matthias"],["dc.date.accessioned","2020-12-10T14:22:33Z"],["dc.date.available","2020-12-10T14:22:33Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.baae.2019.06.008"],["dc.identifier.issn","1439-1791"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71646"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Extinction thresholds and negative responses of Afrotropical ant-following birds to forest cover loss in oil palm and agroforestry landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]