Maas, Bea

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Basic and Applied Ecology"],["dc.bibliographiccitation.lastpage","12"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Heath, Sacha"],["dc.contributor.author","Grass, Ingo"],["dc.contributor.author","Cassano, Camila"],["dc.contributor.author","Classen, Alice"],["dc.contributor.author","Faria, Deborah"],["dc.contributor.author","Gras, Pierre"],["dc.contributor.author","Williams-Guillén, Kimberly"],["dc.contributor.author","Johnson, Matthew"],["dc.contributor.author","Karp, Daniel S."],["dc.contributor.author","Linden, Valerie"],["dc.contributor.author","Martínez-Salinas, Alejandra"],["dc.contributor.author","Schmack, Julia M."],["dc.contributor.author","Kross, Sara"],["dc.date.accessioned","2020-12-10T14:22:32Z"],["dc.date.available","2020-12-10T14:22:32Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.baae.2018.12.002"],["dc.identifier.issn","1439-1791"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71645"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Experimental field exclosure of birds and bats in agricultural systems — Methodological insights, potential improvements, and cost-benefit trade-offs"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","64"],["dc.bibliographiccitation.issue","31"],["dc.bibliographiccitation.journal","FORKTAIL"],["dc.bibliographiccitation.lastpage","69"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Schulze, Christian H."],["dc.date.accessioned","2018-11-07T10:02:27Z"],["dc.date.available","2018-11-07T10:02:27Z"],["dc.date.issued","2015"],["dc.description.abstract","Large and isolated trees are often last refuges for rare forest species in highly fragmented and human-dominated landscapes. This is of particular importance in tropical forest margin areas where remnant forest trees are being cleared at an alarming rate. Drivers and consequences of such remnant forest tree losses are still poorly documented. Here we report the rapid destruction of remnant trees, closely associated with colonies of the Sulawesi endemic Grosbeak Starling Scissirostrum dubium, which excavates nest holes in large dead trees. In 2008, we mapped all the species's potential breeding trees, tree characteristics and the local population density on the east margin of Lore Lindu National Park, Central Sulawesi, Indonesia. When the area was revisited in 2010, we found a dramatic loss of 92% of the recorded nest sites, accompanied by a remarkable decline of the local Grosbeak Starling population. This study provides an alarming example of the immediate consequences of the loss of remnant forest trees in tropical human-dominated landscapes for species dependent on this habitat structure. Without the contemporary implementation of strategies maintaining a high density of isolated large trees in forest margin zones and adjacent cultivated areas, associated species will experience dramatic population declines and a high local and, in the mid-to long-term, a high regional risk of extinction."],["dc.identifier.isi","000375969700008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38226"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oriental Bird Club"],["dc.relation.issn","0950-1746"],["dc.title","Loss of remnant trees causes local population collapse of endemic Grosbeak Starling Scissirostrum dubium 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","2665"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Biological Conservation"],["dc.bibliographiccitation.lastpage","2671"],["dc.bibliographiccitation.volume","142"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Putra, Dadang Dwi"],["dc.contributor.author","Waltert, Matthias"],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Schulze, Christian H."],["dc.date.accessioned","2017-09-07T11:53:56Z"],["dc.date.available","2017-09-07T11:53:56Z"],["dc.date.issued","2009"],["dc.description.abstract","Studies on temporal changes of tropical bird communities in response to habitat modification are rare. We quantified changes in bird assemblages at the rainforest margin of Lore Lindu National Park, Central Sulawesi, over an interval of 6 years. Standardized bird counts were conducted in the years 2001/2002 and 2008 at 15 census points representing natural forest, secondary forest, agroforest and openland sites. Although overall species richness remained nearly identical, different species groups were affected unequally by habitat modification within the forest margin landscape. The mostly endemic forest species declined in abundance (72.0% of forest species) and were detected at fewer census points in 2008 (56.0%). In contrast, 81.8% of the solely widespread openland birds became more abundant and 63.6% of the species were recorded at a larger number of census points. Hence, recent human activities in the forest margin ecotone negatively affected species of high conservation value. Species richness turned out to be a poor indicator of habitat change, and our results underline the importance of considering species identities. Biotic homogenization as result of habitat conversion is a global phenomenon. In our study, the winners were widespread openland species, while the losers were endemic forest birds. In conclusion, our study shows that 6 years of land-use change had negative impacts on bird community structure and endangered species, but not on overall bird species richness."],["dc.identifier.doi","10.1016/j.biocon.2009.06.018"],["dc.identifier.gro","3150026"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6748"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0006-3207"],["dc.subject","Biotic homogenization; Sulawesi; Deforestation; Land-use change; Temporal dynamics"],["dc.title","Six years of habitat modification in a tropical rainforest margin of Indonesia do not affect bird diversity but endemic forest species"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

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[["dc.bibliographiccitation.firstpage","735"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","743"],["dc.bibliographiccitation.volume","52"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Saleh, Shahabuddin"],["dc.contributor.author","Dwi Putra, Dadang"],["dc.contributor.author","Clough, Yann"],["dc.contributor.editor","Siriwardena, Gavin"],["dc.date.accessioned","2017-09-07T11:50:03Z"],["dc.date.available","2017-09-07T11:50:03Z"],["dc.date.issued","2015"],["dc.identifier.doi","10.1111/1365-2664.12409"],["dc.identifier.gro","3149829"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6530"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0021-8901"],["dc.title","Avian species identity drives predation success in tropical cacao agroforestry"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","S0167880921004552"],["dc.bibliographiccitation.firstpage","107751"],["dc.bibliographiccitation.journal","Agriculture, Ecosystems & Environment"],["dc.bibliographiccitation.volume","325"],["dc.contributor.author","Ocampo-Ariza, Carolina"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Castro-Namuche, Jean P."],["dc.contributor.author","Thomas, Evert"],["dc.contributor.author","Vansynghel, Justine"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2022-01-11T14:05:32Z"],["dc.date.available","2022-01-11T14:05:32Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1016/j.agee.2021.107751"],["dc.identifier.pii","S0167880921004552"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/97685"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-507"],["dc.relation.issn","0167-8809"],["dc.title","Trait-dependent responses of birds and bats to season and dry forest distance in tropical agroforestry"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

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[["dc.bibliographiccitation.firstpage","132"],["dc.bibliographiccitation.journal","Basic and Applied Ecology"],["dc.bibliographiccitation.lastpage","141"],["dc.bibliographiccitation.volume","56"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Ocampo-Ariza, Carolina"],["dc.contributor.author","Whelan, Christopher J."],["dc.date.accessioned","2021-12-01T09:23:42Z"],["dc.date.available","2021-12-01T09:23:42Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1016/j.baae.2021.06.010"],["dc.identifier.pii","S1439179121001067"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94733"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.relation.issn","1439-1791"],["dc.title","Cross-disciplinary approaches for better research: The case of birds and bats"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","20221309"],["dc.bibliographiccitation.issue","1982"],["dc.bibliographiccitation.journal","Proceedings of the Royal Society B: Biological Sciences"],["dc.bibliographiccitation.volume","289"],["dc.contributor.author","Vansynghel, Justine"],["dc.contributor.author","Ocampo-Ariza, Carolina"],["dc.contributor.author","Maas, Bea"],["dc.contributor.author","Martin, Emily A."],["dc.contributor.author","Thomas, Evert"],["dc.contributor.author","Hanf-Dressler, Tara"],["dc.contributor.author","Schumacher, Nils-Christian"],["dc.contributor.author","Ulloque-Samatelo, Carlos"],["dc.contributor.author","Yovera, Fredy F."],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.date.accessioned","2022-10-04T10:21:34Z"],["dc.date.available","2022-10-04T10:21:34Z"],["dc.date.issued","2022"],["dc.description.abstract","Animals provide services such as pollination and pest control in cacao agroforestry systems, but also disservices. Yet, their combined contributions to crop yield and fruit loss are mostly unclear. In a full-factorial field experiment in northwestern Peru, we excluded flying insects, ants, birds and bats from cacao trees and assessed several productivity indicators. We quantified the contribution of each group to fruit set, fruit loss and marketable yield and evaluated how forest distance and canopy closure affected productivity. Fruit set dropped (from 1.7% to 0.3%) when flying insects were excluded and tripled at intermediate (40%) compared to high (greater than 80%) canopy cover in the non-exclusion treatment. Fruit set also dropped with bird and bat exclusion, potentially due to increased abundances of arthropods preying on pollinators or flower herbivores. Overall, cacao yields more than doubled when birds and bats had access to trees. Ants were generally associated with fruit loss, but also with yield increases in agroforests close to forest. We also evidenced disservices generated by squirrels, leading to significant fruit losses. Our findings show that several functional groups contribute to high cacao yield, while trade-offs between services and disservices need to be integrated in local and landscape-scale sustainable cacao agroforestry management."],["dc.description.sponsorship","German Federal Ministry for Economic Cooperation and Development (BMZ) commissioned and administered through the Deutsche Gesellschaft für Internationale Zusammenarbeit"],["dc.identifier.doi","10.1098/rspb.2022.1309"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/114447"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-600"],["dc.relation.eissn","1471-2954"],["dc.relation.issn","0962-8452"],["dc.rights.uri","https://royalsociety.org/journals/ethics-policies/data-sharing-mining/"],["dc.title","Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]