Krashevska, Valentyna

[["dc.bibliographiccitation.firstpage","1126"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","The ISME Journal"],["dc.bibliographiccitation.lastpage","1134"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T09:40:57Z"],["dc.date.available","2018-11-07T09:40:57Z"],["dc.date.issued","2014"],["dc.description.abstract","We investigated the response of soil microbial communities in tropical ecosystems to increased nutrient deposition, such as predicted by anthropogenic change scenarios. Moderate amounts of nitrogen and phosphorus and their combination were added along an altitudinal transect. We expected microorganisms and microbial grazers (testate amoebae) to significantly respond to nutrient additions with the effect increasing with increasing altitude and with duration of nutrient additions. Further, we expected nutrients to alter grazer-prey interrelationships. Indeed, nutrient additions strongly altered microbial biomass (MB) and community structure as well as the community structure of testate amoebae. The response of microorganisms varied with both altitude and duration of nutrient addition. The results indicate that microorganisms are generally limited by N, but saprotrophic fungi also by P. Also, arbuscular mycorrhizal fungi benefited from N and/or P addition. Parallel to MB, testate amoebae benefited from the addition of N but were detrimentally affected by P, with the addition of P negating the positive effect of N. Our data suggests that testate amoeba communities are predominantly structured by abiotic factors and by antagonistic interactions with other microorganisms, in particular mycorrhizal fungi, rather than by the availability of prey. Overall, the results suggest that the decomposer system of tropical montane rainforests significantly responds to even moderate changes in nutrient inputs with the potential to cause major ramifications of the whole ecosystem including litter decomposition and plant growth."],["dc.description.sponsorship","German Research Foundation (DFG) [FOR 816]"],["dc.identifier.doi","10.1038/ismej.2013.209"],["dc.identifier.isi","000334912000016"],["dc.identifier.pmid","24285360"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12122"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33616"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Nature Publishing Group"],["dc.relation.issn","1751-7370"],["dc.relation.issn","1751-7362"],["dc.rights","CC BY-NC-SA 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-sa/3.0"],["dc.title","Moderate changes in nutrient input alter tropical microbial and protist communities and belowground linkages"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","697"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Biology and Fertility of Soils"],["dc.bibliographiccitation.lastpage","705"],["dc.bibliographiccitation.volume","51"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Klarner, Bernhard"],["dc.contributor.author","Widyastuti, Rahayu"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T09:53:51Z"],["dc.date.available","2018-11-07T09:53:51Z"],["dc.date.issued","2015"],["dc.description.abstract","Focusing on Sumatra, a hotspot of tropical lowland rainforest transformation, we investigated effects of the conversion of rainforests into rubber agroforests (\"jungle rubber\"), intensive rubber, and oil palm plantations on the communities of litter and soil microorganisms and identified factors responsible for these changes. Litter basal respiration, microbial biomass, total bacterial phospholipid fatty acids (PLFAs), and fungal PLFAs did not vary significantly with rainforest conversion. In litter of converted ecosystems, the concentration of certain PLFAs including the Gram-negative bacteria marker PLFA cy17:0 and the Gram-positive bacteria marker PLFA i17:0 was reduced as compared to rainforest, whereas the concentration of the arbuscular mycorrhizal fungi (AMF) marker neutral lipid fatty acid (NLFA) 16:1 omega 5c increased. As indicated by redundancy analysis, litter pH and carbon concentration explained most of the variation in litter microbial community composition. In soil, microbial biomass did not vary significantly with rainforest conversion, whereas basal respiration declined. Total PLFAs and especially that of Gram-negative bacteria decreased, whereas PLFA i17:0 increased with rainforest conversion. The concentration of fungal PLFAs increased with rainforest conversion, whereas NLFA 16:1 omega 5c did not change significantly. Redundancy analysis indicated that soil pH explained most of the variation in soil microbial community composition. Overall, the data suggest that conversion of rainforests into production systems results in more pronounced changes in microbial community composition in soil as compared to litter. In particular, the response of fungi and bacteria was more pronounced in soil, while the response of AMF was more pronounced in litter. Notably, only certain bacterial markers but not those of saprotrophic fungi and AMF were detrimentally affected by rainforest conversion."],["dc.description.sponsorship","German Research Foundation (DFG) [CRC990]"],["dc.identifier.doi","10.1007/s00374-015-1021-4"],["dc.identifier.isi","000359160800006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36417"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["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.issn","1432-0789"],["dc.relation.issn","0178-2762"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Impact of tropical lowland rainforest conversion into rubber and oil palm plantations on soil microbial communities"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","190"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Protist"],["dc.bibliographiccitation.lastpage","205"],["dc.bibliographiccitation.volume","169"],["dc.contributor.author","Schulz, Garvin"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Völcker, Eckhard"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Krashevska, Valentyna"],["dc.date.accessioned","2020-12-10T15:20:55Z"],["dc.date.available","2020-12-10T15:20:55Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.protis.2018.02.005"],["dc.identifier.issn","1434-4610"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72858"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Evaluation of Morphological Characteristics to Delineate Taxa of the Genus Trigonopyxis (Amoebozoa, Arcellinida)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","603"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","FEMS Microbiology Ecology"],["dc.bibliographiccitation.lastpage","607"],["dc.bibliographiccitation.volume","80"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T09:10:05Z"],["dc.date.available","2018-11-07T09:10:05Z"],["dc.date.issued","2012"],["dc.description.abstract","Litter quality and diversity are major factors structuring decomposer communities. However, little is known on the relationship between litter quality and the community structure of soil protists in tropical forests. We analyzed the diversity, density, and community structure of a major group of soil protists of tropical montane rainforests, that is, testate amoebae. Litterbags containing pure and mixed litter of two abundant tree species at the study sites (Graffenrieda emarginata and Purdiaea nutans) differing in nitrogen concentrations were exposed in the field for 12 similar to months. The density and diversity of testate amoebae were higher in the nitrogen-rich Graffenrieda litter suggesting that nitrogen functions as an important driving factor for soil protist communities. No additive effects of litter mixing were found, rather density of testate amoebae was reduced in litter mixtures as compared to litterbags with Graffenrieda litter only. However, adding of high-quality litter to low-quality litter markedly improved habitat quality, as evaluated by the increase in diversity and density of testate amoebae. The results suggest that local factors, such as litter quality, function as major forces shaping the structure and density of decomposer microfauna that likely feed back to decomposition processes."],["dc.description.sponsorship","German Research Foundation (DFG) [FOR 816]"],["dc.identifier.doi","10.1111/j.1574-6941.2012.01327.x"],["dc.identifier.isi","000303761900008"],["dc.identifier.pmid","22324854"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26416"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0168-6496"],["dc.title","How does litter quality affect the community of soil protists (testate amoebae) of tropical montane rainforests?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","121"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","128"],["dc.bibliographiccitation.volume","77"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T09:34:57Z"],["dc.date.available","2018-11-07T09:34:57Z"],["dc.date.issued","2014"],["dc.description.abstract","In a litterbag study in a tropical montane rainforest in Ecuador we assessed the impact of leaf litter species identity and richness on decomposition. We incubated leaf litter of six native tree species in monocultures and all possible two and four species combinations and analysed mass loss over a period of 24 months. Mass loss in monocultures averaged 30.7% after 6 month and differed significantly between species with variations being closely related to initial concentrations of lignin, Mg and P. At later harvests mass loss in monocultures averaged 54.5% but did not vary among leaf litter species and, unexpectedly, did not increase between 12 and 24 months suggesting that litter converged towards an extremely poor common quality retarding decomposition. After 6 months mass loss of leaf litter species was significantly faster in mixtures than in monocultures, resulting in synergistic non-additive mixture effects on decomposition, whereas at later harvests mass loss of component litter species was more variable and leaf litter mixture effects differed with species richness. Mass loss in the two species mixtures did not deviate from those predicted from monocultures, while we found antagonistic non-additive mixture effects in the four species mixtures. This suggests that litter species shared a poor common quality but different chemistry resulting in negative interactions in chemically diverse litter mixtures at later stages of decomposition. Overall, the results suggest that interspecific variations in diversity and composition of structural and secondary litter compounds rather than concentrations of individual litter compounds per se, control long term leaf litter decomposition in tropical montane rainforests. Plant species diversity thus appears to act as a major driver for decomposition processes in tropical montane rainforest ecosystems, highlighting the need for increasing plant conservation efforts to protect ecosystem functioning of this threatened biodiversity hotspot (C) 2014 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","German Science Foundation (DFG)"],["dc.identifier.doi","10.1016/j.soilbio.2014.06.019"],["dc.identifier.isi","000341556600014"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32286"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0038-0717"],["dc.title","Litter mixture effects on decomposition in tropical montane rainforests vary strongly with time and turn negative at later stages of decay"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","255"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Oecologia"],["dc.bibliographiccitation.lastpage","266"],["dc.bibliographiccitation.volume","187"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Malysheva, Elena"],["dc.contributor.author","Klarner, Bernhard"],["dc.contributor.author","Mazei, Yuri"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Widyastuti, Rahayu"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2020-12-10T14:10:38Z"],["dc.date.available","2020-12-10T14:10:38Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1007/s00442-018-4103-9"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70828"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["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.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Micro-decomposer communities and decomposition processes in tropical lowlands as affected by land use and litter type"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0160179"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Klarner, Bernhard"],["dc.contributor.author","Widyastuti, Rahayu"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T10:11:27Z"],["dc.date.available","2018-11-07T10:11:27Z"],["dc.date.issued","2016"],["dc.description.abstract","Large areas of tropical rainforest are being converted to agricultural and plantation land uses, but little is known of biodiversity and ecological functioning under these replacement land uses. We investigated the effects of conversion of rainforest into jungle rubber, intensive rubber and oil palm plantations on testate amoebae, diverse and functionally important protists in litter and soil. Living testate amoebae species richness, density and biomass were all lower in replacement land uses than in rainforest, with the impact being more pronounced in litter than in soil. Similar abundances of species of high and low trophic level in rainforest suggest that trophic interactions are more balanced, with a high number of functionally redundant species, than in rubber and oil palm. In contrast, plantations had a low density of high trophic level species indicating losses of functions. This was particularly so in oil palm plantations. In addition, the relative density of species with siliceous shells was >50% lower in the litter layer of oil palm and rubber compared to rainforest and jungle rubber. This difference suggests that rainforest conversion changes biogenic silicon pools and increases silicon losses. Overall, the lower species richness, density and biomass in plantations than in rainforest, and the changes in the functional composition of the testate amoebae community, indicate detrimental effects of rainforest conversion on the structure and functioning of microbial food webs."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2016"],["dc.identifier.doi","10.1371/journal.pone.0160179"],["dc.identifier.isi","000381515900072"],["dc.identifier.pmid","27463805"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13503"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40048"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["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.issn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Changes in Structure and Functioning of Protist (Testate Amoebae) Communities Due to Conversion of Lowland Rainforest into Rubber and Oil Palm Plantations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2360"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Ecology and Evolution"],["dc.bibliographiccitation.lastpage","2374"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Sánchez‐Galindo, Laura M."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2021-04-14T08:30:46Z"],["dc.date.available","2021-04-14T08:30:46Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract In tropical forest ecosystems leaf litter from a large variety of species enters the decomposer system, however, the impact of leaf litter diversity on the abundance and activity of soil organisms during decomposition is little known. We investigated the effect of leaf litter diversity and identity on microbial functions and the abundance of microarthropods in Ecuadorian tropical montane rainforests. We used litterbags filled with leaves of six native tree species (Cecropia andina, Dictyocaryum lamarckianum, Myrcia pubescens, Cavendishia zamorensis, Graffenrieda emarginata, and Clusia spp.) and incubated monocultures and all possible two‐ and four‐species combinations in the field for 6 and 12 months. Mass loss, microbial biomass, basal respiration, metabolic quotient, and the slope of microbial growth after glucose addition, as well as the abundance of microarthropods (Acari and Collembola), were measured at both sampling dates. Leaf litter diversity significantly increased mass loss after 6 months of exposure, but reduced microbial biomass after 12 months of exposure. Leaf litter species identity significantly changed both microbial activity and microarthropod abundance with species of high quality (low C‐to‐N ratio), such as C. andina, improving resource quality as indicated by lower metabolic quotient and higher abundance of microarthropods. Nonetheless, species of low quality, such as Clusia spp., also increased the abundance of Oribatida suggesting that leaf litter chemical composition alone is insufficient to explain variation in the abundances of soil microarthropods. Overall, the results provide evidence that decomposition and microbial biomass in litter respond to leaf litter diversity as well as litter identity (chemical and physical characteristics), while microarthropods respond only to litter identity but not litter diversity."],["dc.description.abstract","Leaf litter identity functions as a major driver of the abundance and activity of soil organisms in tropical montane rainforests. image"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1002/ece3.7208"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83365"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","2045-7758"],["dc.relation.issn","2045-7758"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.relation.orgunit","Abteilung Tierökologie"],["dc.rights","CC BY 4.0"],["dc.title","Leaf litter identity rather than diversity shapes microbial functions and microarthropod abundance in tropical montane rainforests"],["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"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Ecology and Evolution"],["dc.bibliographiccitation.lastpage","12"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Krashevska, Valentyna"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2019-07-09T11:43:35Z"],["dc.date.available","2019-07-09T11:43:35Z"],["dc.date.issued","2017"],["dc.description.abstract","We investigated how altitude affects the decomposition of leaf and root litter in the Andean tropical montane rainforest of southern Ecuador, that is, through changes in the litter quality between altitudes or other site-specific differences in microenvironmental conditions. Leaf litter from three abundant tree species and roots of different diameter from sites at 1,000, 2,000, and 3,000 m were placed in litterbags and incubated for 6, 12, 24, 36, and 48 months. Environmental conditions at the three altitudes and the sampling time were the main factors driving litter decomposition, while origin, and therefore quality of the litter, was of minor importance. At 2,000 and 3,000 m decomposition of litter declined for 12 months reaching a limit value of ~50% of initial and not decomposing further for about 24 months. After 36 months, decomposition commenced at low rates resulting in an average of 37.9% and 44.4% of initial remaining after 48 months. In contrast, at 1,000 m decomposition continued for 48 months until only 10.9% of the initial litter mass remained. Changes in decomposition rates were paralleled by changes in microorganisms with microbial biomass decreasing after 24 months at 2,000 and 3,000 m, while varying little at 1,000 m. The results show that, irrespective of litter origin (1,000, 2,000, 3,000 m) and type (leaves, roots), unfavorable microenvironmental conditions at high altitudes inhibit decomposition processes resulting in the sequestration of carbon in thick organic layers."],["dc.identifier.doi","10.1002/ece3.3189"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14584"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58921"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2045-7758"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","570"],["dc.title","Leaf and root litter decomposition is discontinued at high altitude tropical montane rainforests contributing to carbon sequestration"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]