Krause, Alena

[["dc.bibliographiccitation.journal","Frontiers in Ecology and Evolution"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Krause, Alena"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Potapov, Anton M."],["dc.contributor.author","Ermilov, Sergey"],["dc.contributor.author","Widyastuti, Rahayu"],["dc.contributor.author","Haneda, Noor Farikhah"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2021-07-05T14:57:52Z"],["dc.date.available","2021-07-05T14:57:52Z"],["dc.date.issued","2021"],["dc.description.abstract","Land-use change is threatening biodiversity worldwide and is predicted to increase in the next decades, especially in tropical regions. Most studies focused on the response of single or few species to land-use change, only few investigated the response of entire communities. In particular the response of belowground communities to changes in land use received little attention. Oribatid mites (Oribatida, Acari) are among the most abundant soil animals, involved in decomposition processes and nutrient cycling. Oribatid mite species span a wide range of trophic niches and are known to sensitively respond to changes in land use. Here, we investigated shifts in the community-level trophic niche of oribatid mites with the conversion of rainforest into rubber and oil palm plantations. Due to a wider range of resources in more natural ecosystems, we expected the community-level trophic niche to shrink with conversion of rainforest into plantations. As the conversion of rainforest into plantations is associated with reduced availability of litter resources, we expected the average trophic level (indicated by the 15 N/ 14 N ratio) to be higher and basal resources (indicated by the 13 C/ 12 C ratio) to shift toward living plant material in rubber and oil palm plantations. Our analysis showed that community-level trophic niches in rainforest and rubber agroforest (“jungle rubber”) were separated from those in monoculture plantation systems, indicating a trophic niche shift with land-use intensification. As hypothesized, oribatid mites shifted their diet toward predation and/or scavenging and toward the plant-based energy channel with transformation of rainforest into plantations. Exceptionally low minimum 13 C/ 12 C ratios in rubber plantations suggest that certain oribatid mite species in this land-use system use resources not available in the other studied ecosystems. We detected high isotopic uniqueness in oil palm plantations suggesting a low trophic redundancy and thus high vulnerability of trophic functioning in this system in comparison to rainforest. Overall, the results suggest that the conversion of rainforest into plantations is associated with pronounced shifts in community-level trophic niches of mesofauna detritivores with potential major consequences for the functioning of the decomposer system."],["dc.description.abstract","Land-use change is threatening biodiversity worldwide and is predicted to increase in the next decades, especially in tropical regions. Most studies focused on the response of single or few species to land-use change, only few investigated the response of entire communities. In particular the response of belowground communities to changes in land use received little attention. Oribatid mites (Oribatida, Acari) are among the most abundant soil animals, involved in decomposition processes and nutrient cycling. Oribatid mite species span a wide range of trophic niches and are known to sensitively respond to changes in land use. Here, we investigated shifts in the community-level trophic niche of oribatid mites with the conversion of rainforest into rubber and oil palm plantations. Due to a wider range of resources in more natural ecosystems, we expected the community-level trophic niche to shrink with conversion of rainforest into plantations. As the conversion of rainforest into plantations is associated with reduced availability of litter resources, we expected the average trophic level (indicated by the 15 N/ 14 N ratio) to be higher and basal resources (indicated by the 13 C/ 12 C ratio) to shift toward living plant material in rubber and oil palm plantations. Our analysis showed that community-level trophic niches in rainforest and rubber agroforest (“jungle rubber”) were separated from those in monoculture plantation systems, indicating a trophic niche shift with land-use intensification. As hypothesized, oribatid mites shifted their diet toward predation and/or scavenging and toward the plant-based energy channel with transformation of rainforest into plantations. Exceptionally low minimum 13 C/ 12 C ratios in rubber plantations suggest that certain oribatid mite species in this land-use system use resources not available in the other studied ecosystems. We detected high isotopic uniqueness in oil palm plantations suggesting a low trophic redundancy and thus high vulnerability of trophic functioning in this system in comparison to rainforest. Overall, the results suggest that the conversion of rainforest into plantations is associated with pronounced shifts in community-level trophic niches of mesofauna detritivores with potential major consequences for the functioning of the decomposer system."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3389/fevo.2021.592149"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/87762"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-441"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | B | B08: Struktur und Funktion des Zersetzersystems in Transformationssystemen von Tiefland-Regenwäldern"],["dc.relation","SFB 990 | B | B13: Impact of management intensity and tree enrichment of oil palm plantations on below- and aboveground invertebrates in Sumatra (Indonesia)"],["dc.relation.eissn","2296-701X"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.relation.orgunit","Johann-Friedrich-Blumenbach-Institut für Zoologie und Anthropologie"],["dc.rights","CC BY 4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Variation in Community-Level Trophic Niches of Soil Microarthropods With Conversion of Tropical Rainforest Into Plantation Systems as Indicated by Stable Isotopes (15N, 13C)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e0224520"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PLoS One"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Krause, Alena"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Bluhm, Sarah L."],["dc.contributor.author","Ermilov, Sergey"],["dc.contributor.author","Widyastuti, Rahayu"],["dc.contributor.author","Haneda, Noor Farikhah"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2020-12-10T18:42:11Z"],["dc.date.available","2020-12-10T18:42:11Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1371/journal.pone.0224520"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16597"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77838"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | B | B08: Struktur und Funktion des Zersetzersystems in Transformationssystemen von Tiefland-Regenwäldern"],["dc.relation","SFB 990 | B | B13: Impact of management intensity and tree enrichment of oil palm plantations on below- and aboveground invertebrates in Sumatra (Indonesia)"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Shift in trophic niches of soil microarthropods with conversion of tropical rainforest into plantations as indicated by stable isotopes (15N, 13C)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Frontiers in Forests and Global Change"],["dc.bibliographiccitation.volume","2"],["dc.contributor.affiliation","Darras, Kevin F. A.; 1Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Corre, Marife D.; 2Soil Science of Tropical and Subtropical Ecosystems, Faculty of Forest Sciences and Forest Ecology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Formaglio, Greta; 2Soil Science of Tropical and Subtropical Ecosystems, Faculty of Forest Sciences and Forest Ecology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Tjoa, Aiyen; 3Agriculture Faculty, Tadulako University, Palu, Indonesia"],["dc.contributor.affiliation","Potapov, Anton; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Brambach, Fabian; 6Biodiversity, Macroecology and Biogeography, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Sibhatu, Kibrom T.; 7Department of Agricultural Economics and Rural Development, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Grass, Ingo; 1Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Rubiano, Andres Angulo; 1Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Buchori, Damayanti; 9Department of Plant Protection, IPB University, Bogor, Indonesia"],["dc.contributor.affiliation","Drescher, Jochen; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Fardiansah, Riko; 10Collaborative Research Centre 990, University of Jambi, Jambi, Indonesia"],["dc.contributor.affiliation","Hölscher, Dirk; 11Tropical Silviculture and Forest Ecology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Irawan, Bambang; 12Forestry Faculty, University of Jambi, Jambi, Indonesia"],["dc.contributor.affiliation","Kneib, Thomas; 13Chair of Statistics, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Krashevska, Valentyna; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Krause, Alena; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Kreft, Holger; 6Biodiversity, Macroecology and Biogeography, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Li, Kevin; 1Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Maraun, Mark; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Polle, Andrea; 14Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Ryadin, Aisjah R.; 14Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Rembold, Katja; 6Biodiversity, Macroecology and Biogeography, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Stiegler, Christian; 18Bioclimatology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Scheu, Stefan; 4Department of Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Tarigan, Suria; 19Department of Soil Sciences and Land Resources Management, IPB University, Bogor, Indonesia"],["dc.contributor.affiliation","Valdés-Uribe, Alejandra; 11Tropical Silviculture and Forest Ecology, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Yadi, Supri; 9Department of Plant Protection, IPB University, Bogor, Indonesia"],["dc.contributor.affiliation","Tscharntke, Teja; 1Agroecology, Department of Crop Sciences, University of Göttingen, Göttingen, Germany"],["dc.contributor.affiliation","Veldkamp, Edzo; 2Soil Science of Tropical and Subtropical Ecosystems, Faculty of Forest Sciences and Forest Ecology, University of Göttingen, Göttingen, Germany"],["dc.contributor.author","Darras, Kevin F. A."],["dc.contributor.author","Corre, Marife D."],["dc.contributor.author","Formaglio, Greta"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","Potapov, Anton"],["dc.contributor.author","Brambach, Fabian"],["dc.contributor.author","Sibhatu, Kibrom T."],["dc.contributor.author","Grass, Ingo"],["dc.contributor.author","Rubiano, Andres Angulo"],["dc.contributor.author","Buchori, Damayanti"],["dc.contributor.author","Drescher, Jochen"],["dc.contributor.author","Fardiansah, Riko"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Irawan, Bambang"],["dc.contributor.author","Kneib, Thomas"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Krause, Alena"],["dc.contributor.author","Kreft, Holger"],["dc.contributor.author","Li, Kevin"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Ryadin, Aisjah R."],["dc.contributor.author","Rembold, Katja"],["dc.contributor.author","Stiegler, Christian"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Tarigan, Suria"],["dc.contributor.author","Valdés-Uribe, Alejandra"],["dc.contributor.author","Yadi, Supri"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Veldkamp, Edzo"],["dc.date.accessioned","2019-12-17T15:35:22Z"],["dc.date.available","2019-12-17T15:35:22Z"],["dc.date.issued","2019"],["dc.date.updated","2022-09-06T08:10:07Z"],["dc.description.abstract","Oil palm plantations are intensively managed agricultural systems that increasingly dominate certain tropical regions. Oil palm monocultures have been criticized because of their reduced biodiversity compared to the forests they historically replaced, and because of their negative impact on soils, water, and climate. We experimentally test whether less intensive management schemes may enhance biodiversity and lessen detrimental effects on the environment while maintaining high yields. We compare reduced vs. conventional fertilization, as well as mechanical vs. chemical weed control (with herbicides) in a long-term, full-factorial, multidisciplinary experiment. We conducted the experiment in an oil palm company estate in Sumatra, Indonesia, and report the results of the first 2 years. We measured soil nutrients and functions, surveyed above- and below-ground organisms, tracked oil palm condition and productivity, and calculated plantation gross margins. Plants, aboveground arthropods, and belowground animals were positively affected by mechanical vs. chemical weed control, but we could not detect effects on birds and bats. There were no detectable negative effects of reduced fertilization or mechanical weeding on oil palm yields, fine roots, or leaf area index. Also, we could not detect detrimental effects of the reduced fertilization and mechanical weeding on soil nutrients and functions (mineral nitrogen, bulk density, and litter decomposition), but water infiltration and base saturation tended to be higher under mechanical weeding, while soil moisture, and microbial biomass varied with treatment. Economic performance, measured as gross margins, was higher under reduced fertilization. There might be a delayed response of oil palm to the different management schemes applied, so results of future years may confirm whether this is a sustainable management strategy. Nevertheless, the initial effects of the experiment are encouraging to consider less intensive management practices as economically and ecologically viable options for oil palm plantations."],["dc.identifier.doi","10.3389/ffgc.2019.00065"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62760"],["dc.language.iso","en"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | A | A02: Wassernutzungseigenschaften von Bäumen und Palmen in Regenwald-Transformationssystemen Zusammenfassung"],["dc.relation","SFB 990 | A | A03: Untersuchung von Land-Atmosphäre Austauschprozesse in Landnutzungsänderungs-Systemen"],["dc.relation","SFB 990 | A | A05: Optimierung des Nährstoffmanagements in Ölpalmplantagen und Hochrechnung plot-basierter Treibhausgasflüsse auf die Landschaftsebene transformierter Regenwälder"],["dc.relation","SFB 990 | A | A07: Räumlich-zeitliche Skalierung des Einflusses von Landnutzung und Klimawandel auf Landnutzungssysteme in Indonesien"],["dc.relation","SFB 990 | B | B06: Taxonomische, funktionelle, phylogenetische und biogeographische Diversität vaskulärer Pflanzen in Regenwald-Transformationssystemen auf Sumatra (Indonesien)"],["dc.relation","SFB 990 | B | B07: Functional diversity of mycorrhizal fungi along a tropical land-use gradient"],["dc.relation","SFB 990 | B | B08: Struktur und Funktion des Zersetzersystems in Transformationssystemen von Tiefland-Regenwäldern"],["dc.relation","SFB 990 | B | B09: Oberirdische Biodiversitätsmuster und Prozesse in Regenwaldtransformations-Landschaften"],["dc.relation","SFB 990 | B | B13: Impact of management intensity and tree enrichment of oil palm plantations on below- and aboveground invertebrates in Sumatra (Indonesia)"],["dc.relation","SFB 990 | C | C07: Einflussfaktoren von Landnutzungswandel und sozioökonomische Auswirkungen für ländliche Haushalte"],["dc.relation.eissn","2624-893X"],["dc.relation.issn","2624-893X"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","http://creativecommons.org/licenses/by/4.0/"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Reducing Fertilizer and Avoiding Herbicides in Oil Palm Plantations - Ecological and Economic Valuations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]