Now showing 1 - 10 of 12
  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","185"],["dc.bibliographiccitation.issue","4-6"],["dc.bibliographiccitation.journal","Pedobiologia"],["dc.bibliographiccitation.lastpage","190"],["dc.bibliographiccitation.volume","56"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Fronczek, Stefanie"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T09:29:28Z"],["dc.date.available","2018-11-07T09:29:28Z"],["dc.date.issued","2013"],["dc.description.abstract","We investigated changes in density, proportion of parthenogenetic species and individuals, and community structure of oribatid mites (Oribatida, Acari) along an altitudinal gradient in tropical montane rain forests in southern Ecuador. We hypothesized that the proportion of parthenogenetic species and individuals increases whereas density decreases with increasing altitude due to increased harshness of abiotic conditions known to favor parthenogenetic reproduction. In contrast to our hypothesis, the number of parthenogenetic species and individuals decreased toward higher altitudes indicating that changes in environmental conditions with altitude favor sexual rather than parthenogenetic, reproduction. Low density of oribatid mites at high altitudes suggest that high frequency and density of sexual species is favored by the availability of resources and not by factors related to harsh abiotic conditions, finding mating partners or tight coupling with parasites or pathogens. Cosmopolitan decomposer taxa tended to be more frequent at higher altitudes indicating that these species are euryoecious. Overall, our data support the view that the reproductive mode of soil animals is predominantly controlled by the availability and accessibility of resources. (C) 2013 Elsevier GmbH. All rights reserved."],["dc.description.sponsorship","German Research Foundation [RU 816]"],["dc.identifier.doi","10.1016/j.pedobi.2013.07.001"],["dc.identifier.isi","000328526500003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31036"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Gmbh, Urban & Fischer Verlag"],["dc.relation.issn","0031-4056"],["dc.title","More sex at higher altitudes: Changes in the frequency of parthenogenesis in oribatid mites in tropical montane rain forests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","259"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Zootaxa"],["dc.bibliographiccitation.lastpage","270"],["dc.bibliographiccitation.volume","3700"],["dc.contributor.author","Ermilov, Sergey G."],["dc.contributor.author","Stary, Josef"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2018-11-07T09:21:16Z"],["dc.date.available","2018-11-07T09:21:16Z"],["dc.date.issued","2013"],["dc.description.abstract","The new genus Neoctenogalumna gen. nov. with Ctenogalumna moresonensis Engelbrecht, 1972 as a type species and the new subgenus Neoctenogalumna (Paractenogalumna) subgen. nov. with Neoctenogalumna (Paractenogalumna) longiciliata sp. nov. as a type species are proposed. Four new species Allogalumna ampla sp. nov., Galumna miniporosa sp. nov., Pergalumna ornamenta sp. nov. and Neoctenogalumna (Paractenogalumna) longiciliata sp. nov. are described from Ecuadorian soils. Neoctenogalumna moresonensis (Engelbrecht, 1972) comb. nov. and N. congoensis (Stary, 2005) comb. nov. are transferred in the genus Neoctenogalumna gen. nov. from Ctenogalumna. An identification key to known species of Neoctenogalumna gen. nov. is provided. An annotated checklist of identified Ecuadorian Galumnidae is presented. Four species Allogalumna borhidii Balogh & Mahunka, 1979, A. cubana Balogh & Mahunka, 1979, Pergalumna australis Perez-Inigo & Baggio, 1980, Galumna laselvae Balogh, 1997-are recorded for the first time from Ecuador. One genus and one species Trichogalumna Balogh, 1960 and Trichogalumna nipponica (Aoki, 1966) are recorded for the first time from the Neotropical region."],["dc.identifier.doi","10.11646/zootaxa.3700.2.4"],["dc.identifier.isi","000323105100004"],["dc.identifier.pmid","26106726"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29077"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Magnolia Press"],["dc.relation.issn","1175-5334"],["dc.relation.issn","1175-5326"],["dc.title","New taxa and new records of oribatid mites of the family Galumnidae (Acari: Oribatida) from Ecuador"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article
    [["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"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","429"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Acarologia"],["dc.bibliographiccitation.lastpage","437"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","Ermilov, Sergey G."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2018-11-07T09:16:40Z"],["dc.date.available","2018-11-07T09:16:40Z"],["dc.date.issued","2013"],["dc.description.abstract","A new oribatid mite species, Perscheloribates paratzitzikamaensis n. sp., is described from Ecuador. This species is morphologically similar to Perscheloribates tzitzikamaensis (Pletzen, 1965) from South Africa, however, it differs from the latter by the smaller body size, longer notogastral setae pi, the absence of a translamellar line and prolamellar lines represented only by short basal part. The supplementary descriptions of Scheloribates elegans Hammer, 1958 and Monoschelobates parvus Balogh and Mahunka, 1969 are presented on the basis of Ecuadorian specimens."],["dc.identifier.doi","10.1051/acarologia/20132104"],["dc.identifier.isi","000331778800006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27986"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Acarologia-universite Paul Valery"],["dc.relation.issn","2107-7207"],["dc.relation.issn","0044-586X"],["dc.title","PERSCHELORIBATES PARATZITZIKAMAENSIS N. SP., WITH SUPPLEMENTARY DESCRIPTIONS OF SCHELORIBATES ELEGANS AND MONOSCHELOBATES PARVUS (ACARI, ORIBATIDA, SCHELORIBATIDAE) FROM ECUADOR"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article
    [["dc.bibliographiccitation.firstpage","103382"],["dc.bibliographiccitation.journal","Applied Soil Ecology"],["dc.bibliographiccitation.volume","147"],["dc.contributor.author","Sun, Xin"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Bluhm, Christian"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2020-12-10T14:22:28Z"],["dc.date.available","2020-12-10T14:22:28Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1016/j.apsoil.2019.103382"],["dc.identifier.issn","0929-1393"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71627"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.title","Response of Collembola to the addition of nutrients along an altitudinal gradient of tropical montane rainforests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","565"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Zootaxa"],["dc.bibliographiccitation.lastpage","576"],["dc.bibliographiccitation.volume","3641"],["dc.contributor.author","Ermilov, Sergey G."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2018-11-07T09:25:52Z"],["dc.date.available","2018-11-07T09:25:52Z"],["dc.date.issued","2013"],["dc.description.abstract","Three new oppioid mite species of the genus Sternoppia, S. paraincisa sp. nov., S. paramirabilis sp. nov. and S. fissurata sp. nov., are described. Sternoppia paraincisa sp. nov. is most similar morphologically to Sternoppia incisa Balogh & Mahunka, 1977 from Bolivia, however, it differs from the latter by smaller body size, presence of notogastral setae c, location of lyrifissures ia, presence of granules on anal plates, and setiform sensilli. Sternoppia paramirabilis sp. nov. is most similar morphologically to Sternoppia mirabilis Balogh & Mahunka, 1968 from Argentina, however it differs from the latter by larger body size, presence of two or three sensillar branches only, and long interlamellar setae. Sternoppia fissurata sp. nov. differs from all species of the genus by the nine pairs of notogastral setae, location of lyrifissures iad in inverse apoanal position, and the presence of large tectum on anterior part of ventral plate. Sternoppia brasiliensis is for the first time recorded in Ecuador. An identification key to all known species of Sternoppia is provided."],["dc.description.sponsorship","German Research Foundation [RU 816]"],["dc.identifier.isi","000318062500005"],["dc.identifier.pmid","26287107"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30163"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Magnolia Press"],["dc.relation.issn","1175-5326"],["dc.title","Three new species of the genus Sternoppia (Acari: Oribatida: Sternoppiidae) from Ecuador"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","35"],["dc.bibliographiccitation.journal","European Journal of Soil Biology"],["dc.bibliographiccitation.lastpage","41"],["dc.bibliographiccitation.volume","84"],["dc.contributor.author","Castillo, Pablo Ramírez"],["dc.contributor.author","Marian, Lucas"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Günter, Sven"],["dc.contributor.author","Espinosa, Carlos Ivan"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2020-12-10T14:23:44Z"],["dc.date.available","2020-12-10T14:23:44Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.ejsobi.2017.09.009"],["dc.identifier.issn","1164-5563"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72032"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.title","Response of oribatid mites to reforestation of degraded tropical montane pastureland"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","111"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Acarologia"],["dc.bibliographiccitation.lastpage","123"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","Ermilov, Sergey G."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2018-11-07T09:27:57Z"],["dc.date.available","2018-11-07T09:27:57Z"],["dc.date.issued","2013"],["dc.description.abstract","Three new oribatid mite species - Ampullobates ecuadoriensis n. sp., Plenotocepheus neotropicus n. sp. and Monoschelobates hemileiformis n. sp. - are described from Ecuador. The three genera are also new for Ecuador. Ampullobates ecuadoriensis n. sp. is morphologically similar to Ampullobates nigriclavatus Grandjean, but differs from the latter by the morphology of the lamellar, exuvial and some epimeral setae, sensilli, the size of the interlamellar and exobothridial setae and the position of the genital setae. Plenotocepheus neotropicus n. sp. is morphologically similar to Plenotocepheus mollicoma Hammer, but differs by the length of interlamellar setae, morphology of sensilli, localization of lyrifissures iad and adanal setae ad(3) and structure of leg setae u. Finally, Monoschelobates hemileiformis n. sp. is morphologically similar to Monoschelobates parvus Balogh and Mahunka, but shows differences in body size, length of the interlamellar, notogastral and anogenital setae and the presence of aggenital setae."],["dc.identifier.doi","10.1051/acarologia/20132075"],["dc.identifier.isi","000317370700008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30659"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Acarologia-universite Paul Valery"],["dc.relation.issn","2107-7207"],["dc.relation.issn","0044-586X"],["dc.title","THREE NEW SPECIES OF ORIBATID MITES (ACARI, ORIBATIDA) FROM ECUADOR"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Plant and Soil"],["dc.bibliographiccitation.lastpage","18"],["dc.bibliographiccitation.volume","438"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Brown, Linda"],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Maraun, Mark"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2020-12-10T14:11:48Z"],["dc.date.available","2020-12-10T14:11:48Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/s11104-019-03999-x"],["dc.identifier.eissn","1573-5036"],["dc.identifier.issn","0032-079X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71214"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.title","Roots, mycorrhizal fungi and altitude as determinants of litter decomposition and soil animal communities in tropical montane rainforests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2013Journal Article
    [["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","SPIXIANA"],["dc.bibliographiccitation.lastpage","8"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Ermilov, Sergey G."],["dc.contributor.author","Sandmann, Dorothee"],["dc.contributor.author","Marian, Franca"],["dc.contributor.author","Maraun, Mark"],["dc.date.accessioned","2018-11-07T09:20:08Z"],["dc.date.available","2018-11-07T09:20:08Z"],["dc.date.issued","2013"],["dc.description.abstract","Two new oppiid mite species of the genus Gittella, G. variabilis spec. nov. and G. minor spec. nov., are described from Southern Ecuador. The first new species is morphologically similar to Gittella maxima (Balogh & Mahunka, 1981), however, it differs from the latter by the morphology of sensilli, notogastral setae and epimeral region. The second new species is morphologically similar to Gittella insularis Mahunka, 1998. However, it differs from the latter by the body size, number of interbothridial muscle sigilla and the morphology of rostral and interlamellar setae. The morphology of the gnathosoma is presented in detail for the first time for a species of this genus."],["dc.description.sponsorship","German Research Foundation [RU 816]"],["dc.identifier.isi","000329017000001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28806"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Verlag Dr Friedrich Pfeil"],["dc.relation.issn","0341-8391"],["dc.title","Two new oribatid mite species of the genus Gittella from Ecuador (Acari, Oribatida, Oppiidae)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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