Graefe, Sophie

[["dc.bibliographiccitation.firstpage","269"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Biodiversity and Conservation"],["dc.bibliographiccitation.lastpage","300"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Dufour, Dominique"],["dc.contributor.author","van Zonneveld, Maarten"],["dc.contributor.author","Rodriguez, Fernando"],["dc.contributor.author","Gonzalez, Alonso"],["dc.date.accessioned","2018-11-07T09:28:44Z"],["dc.date.available","2018-11-07T09:28:44Z"],["dc.date.issued","2013"],["dc.description.abstract","Peach palm (Bactris gasipaes) is a multi-purpose palm tree native to tropical Latin America, which is predominantly cultivated by smallholders in agroforestry systems. The fruits are rich in starch and contribute importantly to food security and the cash income of farmers who cultivate them. Complex value chains have emerged that link producers to consumers, but irregular product quality and market chain inequalities undermine the economic well-being of producers and retailers. Peach palm is genetically diverse, but screening for traits of commercial and nutritional interest is required to enhance the use of its genetic resources. Alliances between public organizations and private enterprises are needed to realize the potential for processing novel products from peach palm, especially in the pharmaceutical and cosmetic sectors. The diverse challenges that emerge at different stages of production, processing and marketing require participatory research that directly involves stakeholders from the beginning."],["dc.identifier.doi","10.1007/s10531-012-0402-3"],["dc.identifier.isi","000313792200001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8837"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30850"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1572-9710"],["dc.relation.issn","0960-3115"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Peach palm (Bactris gasipaes) in tropical Latin America: implications for biodiversity conservation, natural resource management and human nutrition"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","536"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Biotropica"],["dc.bibliographiccitation.lastpage","542"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-02-26T10:17:25Z"],["dc.date.available","2018-02-26T10:17:25Z"],["dc.date.issued","2008"],["dc.description.abstract","Growth and death of fine roots represent an important carbon sink in forests. Our understanding of the patterns of fine root turnover is limited, in particular in tropical forests, despite its acknowledged importance in the global carbon cycle. We used the minirhizotron technique for studying the changes in fine root longevity and turnover along a 2000‐m‐elevational transect in the tropical mountain forests of South Ecuador. Fine root growth and loss rates were monitored during a 5‐mo period at intervals of four weeks with each 10 minirhizotron tubes in three stands at 1050, 1890, and 3060 m asl. Average root loss rate decreased from 1.07 to 0.72 g/g/yr from 1050 to 1890 m, indicating an increase in mean root longevity with increasing elevation. However average root loss rate increased again toward the uppermost stand at 3060 m (1.30 g/g/yr). Thus, root longevity increased from lower montane to mid‐montane elevation as would be expected from an effect of low temperature on root turnover, but it decreased further upslope despite colder temperatures. We suggest that adverse soil conditions may reduce root longevity at high elevations in South Ecuador, and are thus additional factors besides temperature that control root dynamics in tropical mountain forests."],["dc.identifier.doi","10.1111/j.1744-7429.2008.00419.x"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12582"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Estimating Fine Root Turnover in Tropical Forests along an Elevational Transect using Minirhizotrons"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","273"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","286"],["dc.bibliographiccitation.volume","24"],["dc.contributor.author","Abdulai, Issaka"],["dc.contributor.author","Vaast, Philippe"],["dc.contributor.author","Hoffmann, Munir P."],["dc.contributor.author","Asare, Richard"],["dc.contributor.author","Jassogne, Laurence"],["dc.contributor.author","Van Asten, Piet"],["dc.contributor.author","Rötter, Reimund P."],["dc.contributor.author","Graefe, Sophie"],["dc.date.accessioned","2020-12-10T18:28:41Z"],["dc.date.available","2020-12-10T18:28:41Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1111/gcb.13885"],["dc.identifier.issn","1354-1013"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/76381"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","106887"],["dc.bibliographiccitation.journal","Agriculture, Ecosystems & Environment"],["dc.bibliographiccitation.volume","295"],["dc.contributor.author","Sarmiento-Soler, Alejandra"],["dc.contributor.author","Vaast, Philippe"],["dc.contributor.author","Hoffmann, Munir P."],["dc.contributor.author","Jassogne, Laurence"],["dc.contributor.author","van Asten, Piet"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Rötter, Reimund P."],["dc.date.accessioned","2021-04-14T08:26:04Z"],["dc.date.available","2021-04-14T08:26:04Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1016/j.agee.2020.106887"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81821"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.issn","0167-8809"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.title","Effect of cropping system, shade cover and altitudinal gradient on coffee yield components at Mt. Elgon, Uganda"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","329"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Environmental and Experimental Botany"],["dc.bibliographiccitation.lastpage","336"],["dc.bibliographiccitation.volume","71"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Coners, Heinz"],["dc.contributor.author","Hertel, Dietrich"],["dc.date.accessioned","2018-11-07T08:54:55Z"],["dc.date.available","2018-11-07T08:54:55Z"],["dc.date.issued","2011"],["dc.description.abstract","Lowered temperatures may reduce the root water uptake of tropical trees at high elevations through several mechanisms; however, field studies to test their relevance are lacking. We measured sap flux density (J) in small-diameter tree roots across a 2000-m elevation transect in a tropical mountain forest for quantifying the effects of temperature (T(a)), VPD and soil moisture (theta) on root water flow and uptake at different elevations. Recently developed miniature heat balance-sap flow gauges were applied to roots of about 10 mm in diameter in mountain forest stands at 1050, 1890 and 3060m a.s.l. in the Ecuadorian Andes and the measured flow was related to anatomical properties of the root xylem. Between 1050 and 3060 m, mean J decreased to about a third. VPD was the most influential environmental factor controlling J at 1050 and 1890 m, while T(a) was the key determinant at 3060 in. Large vessels were absent in the root xylem of high-elevation trees which resulted in a 10-fold decrease of theoretical hydraulic conductivity (k(h)(theor)) between 1050 and 3060 in. We conclude that both physical limitations (reduced VPD, increased viscosity of water) and biological constraints (large decrease of k(h)(theor)) result in a significantly reduced J and root water uptake of the trees in high-elevation tropical forests. (C) 2011 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","German Science Foundation (DFG) through Research Group [402, B6]"],["dc.identifier.doi","10.1016/j.envexpbot.2011.01.001"],["dc.identifier.isi","000290013500001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22785"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0098-8472"],["dc.title","Root functioning in tropical high-elevation forests: Environmental vs. biological control of root water absorption"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","S37"],["dc.bibliographiccitation.journal","Bone Marrow Transplantation"],["dc.bibliographiccitation.lastpage","S38"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Graef, T."],["dc.contributor.author","Neumann, F."],["dc.contributor.author","Ruf, L."],["dc.contributor.author","Fenk, R."],["dc.contributor.author","Kondakci, M."],["dc.contributor.author","Steidl, Christian"],["dc.contributor.author","Haase, Detlef"],["dc.contributor.author","Haas, Rainer"],["dc.contributor.author","Kobbe, Guido"],["dc.date.accessioned","2018-11-07T11:18:18Z"],["dc.date.available","2018-11-07T11:18:18Z"],["dc.date.issued","2005"],["dc.identifier.isi","000228336000096"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55004"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Nature Publishing Group"],["dc.publisher.place","London"],["dc.relation.conference","31st Annual Meeting of the European-Group-for-Blood-and-Marrow-Transplantation/21st Meeting of the EBMT-Nurses-Group/4th Meeting of the EBMT-Data-Management-Group"],["dc.relation.eventlocation","Prague, CZECH REPUBLIC"],["dc.relation.issn","0268-3369"],["dc.title","Early sequential myeloablative allogeneic stem cell transplantation in patients with refractory or relapsed myeloid leukaemias during high-dose cytarabin induced cytopenia"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","559"],["dc.bibliographiccitation.journal","Ecological Indicators"],["dc.bibliographiccitation.lastpage","571"],["dc.bibliographiccitation.volume","83"],["dc.contributor.author","Butz, Philipp"],["dc.contributor.author","Raffelsbauer, Volker"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Peters, Thorsten"],["dc.contributor.author","Cueva, Eduardo"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Bräuning, Achim"],["dc.date.accessioned","2017-09-07T11:45:44Z"],["dc.date.available","2017-09-07T11:45:44Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1016/j.ecolind.2016.11.021"],["dc.identifier.gro","3149084"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5730"],["dc.language.iso","en"],["dc.notes.intern","Hoelscher Crossref import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1470-160X"],["dc.title","Tree responses to moisture fluctuations in a neotropical dry forest as potential climate change indicators"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","321"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Human Ecology"],["dc.bibliographiccitation.lastpage","332"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Meyer-Sand, Lennart Flavio"],["dc.contributor.author","Chauvette, Katja"],["dc.contributor.author","Abdulai, Issaka"],["dc.contributor.author","Jassogne, Laurence"],["dc.contributor.author","Vaast, Philippe"],["dc.contributor.author","Asare, Richard"],["dc.date.accessioned","2018-11-07T10:23:08Z"],["dc.date.available","2018-11-07T10:23:08Z"],["dc.date.issued","2017"],["dc.description.abstract","Shade trees are an integral part of most cocoa growing systems across the world. This study assesses farmers' local knowledge of shade trees at two locations in Ghana with different climatic conditions and vulnerability to climate change. Akumadan is located in the northern dry part of the cocoa belt representing marginal conditions for cocoa cultivation, whereas Asankragua is located in the southern wet part, more ecologically favorable for cocoa cultivation. Inventories were conducted to assess the abundance of species, their structural characteristics and benefits to cocoa systems. Results show that cocoa farmers have detailed knowledge on the functions of shade trees in cocoa systems and prefer species that provide specific needs according to the location. However, abundance of species in a location does not necessary translate into beneficial impacts on cocoa productivity. In the drier part of the cocoa belt, income diversification through shade trees is an adaptation strategy to the increasingly marginal conditions for cocoa production, which has led to the high proportion of fruit trees among the most abundant species. In contrast, farmers in the southern part of the cocoa belt select shade trees for their high cocoa compatibility. Adaptation strategies for cocoa farmers should therefore promote species that best accommodate farmers' economic, agronomic and environmental needs."],["dc.identifier.doi","10.1007/s10745-017-9899-0"],["dc.identifier.isi","000402700400003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42399"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Springer"],["dc.relation.issn","1572-9915"],["dc.relation.issn","0300-7839"],["dc.title","Evaluating Farmers' Knowledge of Shade Trees in Different Cocoa Agro-Ecological Zones in Ghana"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","231"],["dc.bibliographiccitation.journal","Agricultural and Forest Meteorology"],["dc.bibliographiccitation.lastpage","242"],["dc.bibliographiccitation.volume","266-267"],["dc.contributor.author","Sarmiento-Soler, Alejandra"],["dc.contributor.author","Vaast, Philippe"],["dc.contributor.author","Hoffmann, Munir P."],["dc.contributor.author","Rötter, Reimund P."],["dc.contributor.author","Jassogne, Laurence"],["dc.contributor.author","van Asten, Piet J.A."],["dc.contributor.author","Graefe, Sophie"],["dc.date.accessioned","2020-12-10T14:22:16Z"],["dc.date.available","2020-12-10T14:22:16Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.agrformet.2018.12.006"],["dc.identifier.issn","0168-1923"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71563"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.orgunit","Zentrum für Biodiversität und Nachhaltige Landnutzung"],["dc.title","Water use of Coffea arabica in open versus shaded systems under smallholder’s farm conditions in Eastern Uganda"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","PII 926393782"],["dc.bibliographiccitation.firstpage","151"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Plant Ecology & Diversity"],["dc.bibliographiccitation.lastpage","164"],["dc.bibliographiccitation.volume","3"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Roederstein, Marina"],["dc.contributor.author","Graefe, Sophie"],["dc.contributor.author","Soethe, Nathalie"],["dc.contributor.author","Hertel, Dietrich"],["dc.date.accessioned","2018-11-07T08:48:28Z"],["dc.date.available","2018-11-07T08:48:28Z"],["dc.date.issued","2010"],["dc.description.abstract","Background: Data on below-ground production of tropical montane forests along elevation gradients are scarce. Aims: To determine fine, coarse and large root biomass and productivity along a 2000m elevation transect. Methods: In five south Ecuadorian mountain forests along a transect from 1000 to 3000m above sea level, fine ( 2 mm diameter), coarse (2-50 mm) and large root biomass ( 50 mm) were analysed by soil coring and excavation of soil pits. Fine root production was estimated synchronously by three different approaches (sequential soil coring, the ingrowth core method, and the mini-rhizotron technique). Coarse and large root production was estimated by recording diameter increment using dendrometer tapes. Results: Fine root biomass increased four-fold between 1000 and 3000 m; coarse and large root biomass doubled. The three approaches for estimating fine root production yielded highly divergent results, with the mini-rhizotron approach giving the most reliable data, and indicating a significant increase in fine root production with elevation. Conclusions: Our results indicate a marked carbon allocation shift from above- to below-ground towards higher elevations, which is probably a consequence of increasing nutrient limitation of tree growth with increasing elevation."],["dc.description.sponsorship","German Science Foundation (DFG)"],["dc.identifier.doi","10.1080/17550874.2010.517788"],["dc.identifier.isi","000284632400006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21218"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Taylor & Francis Ltd"],["dc.relation.issn","1755-0874"],["dc.title","Biomass and productivity of fine and coarse roots in five tropical mountain forests stands along an altitudinal transect in southern Ecuador"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]