Klein, Alexandra Maria

[["dc.bibliographiccitation.firstpage","153"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","American Journal of Botany"],["dc.bibliographiccitation.lastpage","157"],["dc.bibliographiccitation.volume","90"],["dc.contributor.author","Klein, Alexandra‐Maria"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:50:53Z"],["dc.date.available","2017-09-07T11:50:53Z"],["dc.date.issued","2008"],["dc.identifier.doi","10.3732/ajb.90.1.153"],["dc.identifier.gro","3149938"],["dc.identifier.pmid","21659091"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6650"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0002-9122"],["dc.title","Bee pollination and fruit set of Coffea arabica and C. canephora (Rubiaceae)"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1608"],["dc.bibliographiccitation.issue","6127"],["dc.bibliographiccitation.journal","Science"],["dc.bibliographiccitation.lastpage","1611"],["dc.bibliographiccitation.volume","339"],["dc.contributor.author","Garibaldi, L. A."],["dc.contributor.author","Steffan-Dewenter, I."],["dc.contributor.author","Winfree, R."],["dc.contributor.author","Aizen, M. A."],["dc.contributor.author","Bommarco, R."],["dc.contributor.author","Cunningham, S. A."],["dc.contributor.author","Kremen, C."],["dc.contributor.author","Carvalheiro, L. G."],["dc.contributor.author","Harder, L. D."],["dc.contributor.author","Afik, O."],["dc.contributor.author","Bartomeus, I."],["dc.contributor.author","Benjamin, F."],["dc.contributor.author","Boreux, V."],["dc.contributor.author","Cariveau, D."],["dc.contributor.author","Chacoff, N. P."],["dc.contributor.author","Dudenhöffer, Jan-H."],["dc.contributor.author","Freitas, B. M."],["dc.contributor.author","Ghazoul, J."],["dc.contributor.author","Greenleaf, S."],["dc.contributor.author","Hipolito, J."],["dc.contributor.author","Holzschuh, A."],["dc.contributor.author","Howlett, B."],["dc.contributor.author","Isaacs, R."],["dc.contributor.author","Javorek, S. K."],["dc.contributor.author","Kennedy, C. M."],["dc.contributor.author","Krewenka, K. M."],["dc.contributor.author","Krishnan, S."],["dc.contributor.author","Mandelik, Y."],["dc.contributor.author","Mayfield, M. M."],["dc.contributor.author","Motzke, I."],["dc.contributor.author","Munyuli, T."],["dc.contributor.author","Nault, B. A."],["dc.contributor.author","Otieno, M."],["dc.contributor.author","Petersen, J."],["dc.contributor.author","Pisanty, G."],["dc.contributor.author","Potts, S. G."],["dc.contributor.author","Rader, R."],["dc.contributor.author","Ricketts, T. H."],["dc.contributor.author","Rundlof, M."],["dc.contributor.author","Seymour, C. L."],["dc.contributor.author","Schuepp, C."],["dc.contributor.author","Szentgyorgyi, H."],["dc.contributor.author","Taki, H."],["dc.contributor.author","Tscharntke, T."],["dc.contributor.author","Vergara, C. H."],["dc.contributor.author","Viana, B. F."],["dc.contributor.author","Wanger, T. C."],["dc.contributor.author","Westphal, C."],["dc.contributor.author","Williams, N."],["dc.contributor.author","Klein, A. M."],["dc.date.accessioned","2017-09-07T11:54:48Z"],["dc.date.available","2017-09-07T11:54:48Z"],["dc.date.issued","2013"],["dc.description.abstract","The diversity and abundance of wild insect pollinators have declined in many agricultural landscapes. Whether such declines reduce crop yields, or are mitigated by managed pollinators such as honey bees, is unclear. We found universally positive associations of fruit set with flower visitation by wild insects in 41 crop systems worldwide. In contrast, fruit set increased significantly with flower visitation by honey bees in only 14% of the systems surveyed. Overall, wild insects pollinated crops more effectively; an increase in wild insect visitation enhanced fruit set by twice as much as an equivalent increase in honey bee visitation. Visitation by wild insects and honey bees promoted fruit set independently, so pollination by managed honey bees supplemented, rather than substituted for, pollination by wild insects. Our results suggest that new practices for integrated management of both honey bees and diverse wild insect assemblages will enhance global crop yields."],["dc.identifier.doi","10.1126/science.1230200"],["dc.identifier.gro","3150108"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6838"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","chake"],["dc.relation.issn","0036-8075"],["dc.title","Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","303"],["dc.bibliographiccitation.issue","1608"],["dc.bibliographiccitation.journal","Proceedings of the Royal Society B: Biological Sciences"],["dc.bibliographiccitation.lastpage","313"],["dc.bibliographiccitation.volume","274"],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Vaissière, Bernard E"],["dc.contributor.author","Cane, J. H"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Cunningham, Saul A."],["dc.contributor.author","Kremen, Claire"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:50:06Z"],["dc.date.available","2017-09-07T11:50:06Z"],["dc.date.issued","2006"],["dc.description.abstract","The extent of our reliance on animal pollination for world crop production for human food has not previously been evaluated and the previous estimates for countries or continents have seldom used primary data. In this review, we expand the previous estimates using novel primary data from 200 countries and found that fruit, vegetable or seed production from 87 of the leading global food crops is dependent upon animal pollination, while 28 crops do not rely upon animal pollination. However, global production volumes give a contrasting perspective, since 60% of global production comes from crops that do not depend on animal pollination, 35% from crops that depend on pollinators, and 5% are unevaluated. Using all crops traded on the world market and setting aside crops that are solely passively self-pollinated, wind-pollinated or parthenocarpic, we then evaluated the level of dependence on animal-mediated pollination for crops that are directly consumed by humans. We found that pollinators are essential for 13 crops, production is highly pollinator dependent for 30, moderately for 27, slightly for 21, unimportant for 7, and is of unknown significance for the remaining 9. We further evaluated whether local and landscape-wide management for natural pollination services could help to sustain crop diversity and production. Case studies for nine crops on four continents revealed that agricultural intensification jeopardizes wild bee communities and their stabilizing effect on pollination services at the landscape scale."],["dc.identifier.doi","10.1098/rspb.2006.3721"],["dc.identifier.gro","3149835"],["dc.identifier.pmid","17164193"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6537"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0962-8452"],["dc.title","Importance of pollinators in changing landscapes for world crops"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4946"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","4957"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Lichtenberg, Elinor M."],["dc.contributor.author","Kennedy, Christina M."],["dc.contributor.author","Kremen, Claire"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Berendse, Frank"],["dc.contributor.author","Bommarco, Riccardo"],["dc.contributor.author","Bosque-Pérez, Nilsa A."],["dc.contributor.author","Carvalheiro, Luísa G."],["dc.contributor.author","Snyder, William E."],["dc.contributor.author","Williams, Neal M."],["dc.contributor.author","Winfree, Rachael"],["dc.contributor.author","Klatt, Björn K."],["dc.contributor.author","Åström, Sandra"],["dc.contributor.author","Benjamin, Faye"],["dc.contributor.author","Brittain, Claire"],["dc.contributor.author","Chaplin-Kramer, Rebecca"],["dc.contributor.author","Clough, Yann"],["dc.contributor.author","Danforth, Bryan"],["dc.contributor.author","Diekötter, Tim"],["dc.contributor.author","Eigenbrode, Sanford D."],["dc.contributor.author","Ekroos, Johan"],["dc.contributor.author","Elle, Elizabeth"],["dc.contributor.author","Freitas, Breno M."],["dc.contributor.author","Fukuda, Yuki"],["dc.contributor.author","Gaines-Day, Hannah R."],["dc.contributor.author","Grab, Heather"],["dc.contributor.author","Gratton, Claudio"],["dc.contributor.author","Holzschuh, Andrea"],["dc.contributor.author","Isaacs, Rufus"],["dc.contributor.author","Isaia, Marco"],["dc.contributor.author","Jha, Shalene"],["dc.contributor.author","Jonason, Dennis"],["dc.contributor.author","Jones, Vincent P."],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Krauss, Jochen"],["dc.contributor.author","Letourneau, Deborah K."],["dc.contributor.author","Macfadyen, Sarina"],["dc.contributor.author","Mallinger, Rachel E."],["dc.contributor.author","Martin, Emily A."],["dc.contributor.author","Martínez, Eliana"],["dc.contributor.author","Memmott, Jane"],["dc.contributor.author","Morandin, Lora"],["dc.contributor.author","Neame, Lisa"],["dc.contributor.author","Otieno, Mark"],["dc.contributor.author","Park, Mia G."],["dc.contributor.author","Pfiffner, Lukas"],["dc.contributor.author","Pocock, Michael J. O."],["dc.contributor.author","Ponce, Carlos"],["dc.contributor.author","Potts, Simon G."],["dc.contributor.author","Poveda, Katja"],["dc.contributor.author","Ramos, Mariangie"],["dc.contributor.author","Rosenheim, Jay A."],["dc.contributor.author","Rundlöf, Maj"],["dc.contributor.author","Sardiñas, Hillary"],["dc.contributor.author","Saunders, Manu E."],["dc.contributor.author","Schon, Nicole L."],["dc.contributor.author","Sciligo, Amber R."],["dc.contributor.author","Sidhu, C. Sheena"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Veselý, Milan"],["dc.contributor.author","Weisser, Wolfgang W."],["dc.contributor.author","Wilson, Julianna K."],["dc.contributor.author","Crowder, David W."],["dc.date.accessioned","2017-09-07T11:54:44Z"],["dc.date.available","2017-09-07T11:54:44Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1111/gcb.13714"],["dc.identifier.gro","3150092"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6822"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1354-1013"],["dc.title","A global synthesis of the effects of diversified farming systems on arthropod diversity within fields and across agricultural landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1062"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Ecology Letters"],["dc.bibliographiccitation.lastpage","1072"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Garibaldi, Lucas A."],["dc.contributor.author","Steffan-Dewenter, Ingolf D."],["dc.contributor.author","Kremen, Claire"],["dc.contributor.author","Morales, Juan M."],["dc.contributor.author","Bommarco, Riccardo"],["dc.contributor.author","Cunningham, Saul A."],["dc.contributor.author","Carvalheiro, Luisa G."],["dc.contributor.author","Chacoff, Natacha P."],["dc.contributor.author","Dudenhoeffer, Jan-Hendrik"],["dc.contributor.author","Greenleaf, Sarah S."],["dc.contributor.author","Holzschuh, Andrea"],["dc.contributor.author","Isaacs, Rufus"],["dc.contributor.author","Krewenka, Kristin M."],["dc.contributor.author","Mandelik, Yael"],["dc.contributor.author","Mayfield, Margaret M."],["dc.contributor.author","Morandin, Lora A."],["dc.contributor.author","Potts, Simon G."],["dc.contributor.author","Ricketts, Taylor H."],["dc.contributor.author","Szentgyoergyi, Hajnalka"],["dc.contributor.author","Viana, Blandina Felipe"],["dc.contributor.author","Westphal, Catrin"],["dc.contributor.author","Winfree, Rachael"],["dc.contributor.author","Klein, Alexandra Maria"],["dc.date.accessioned","2018-11-07T08:51:31Z"],["dc.date.available","2018-11-07T08:51:31Z"],["dc.date.issued","2011"],["dc.description.abstract","Sustainable agricultural landscapes by definition provide high magnitude and stability of ecosystem services, biodiversity and crop productivity. However, few studies have considered landscape effects on the stability of ecosystem services. We tested whether isolation from florally diverse natural and semi-natural areas reduces the spatial and temporal stability of flower-visitor richness and pollination services in crop fields. We synthesised data from 29 studies with contrasting biomes, crop species and pollinator communities. Stability of flower-visitor richness, visitation rate (all insects except honey bees) and fruit set all decreased with distance from natural areas. At 1 km from adjacent natural areas, spatial stability decreased by 25, 16 and 9% for richness, visitation and fruit set, respectively, while temporal stability decreased by 39% for richness and 13% for visitation. Mean richness, visitation and fruit set also decreased with isolation, by 34, 27 and 16% at 1 km respectively. In contrast, honey bee visitation did not change with isolation and represented > 25% of crop visits in 21 studies. Therefore, wild pollinators are relevant for crop productivity and stability even when honey bees are abundant. Policies to preserve and restore natural areas in agricultural landscapes should enhance levels and reliability of pollination services."],["dc.identifier.doi","10.1111/j.1461-0248.2011.01669.x"],["dc.identifier.isi","000294917700011"],["dc.identifier.pmid","21806746"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21951"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1461-023X"],["dc.title","Stability of pollination services decreases with isolation from natural areas despite honey bee visits"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","837"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","845"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Klein, A.-M."],["dc.contributor.author","Steffan-Dewenter, I."],["dc.contributor.author","Tscharntke, T."],["dc.date.accessioned","2017-09-07T11:50:45Z"],["dc.date.available","2017-09-07T11:50:45Z"],["dc.date.issued","2003"],["dc.description.abstract","Pollination of crops depends on local agricultural management and the quality of adjacent habitats. Lowland coffee Coffea canephora, is an important tropical cash crop. Fruit set depends on cross-pollination by bees, so inadequate pollination leads to reduced yield. In this study we analyse the relationship between bee pollinators, fruit set in coffee, and the local and regional agroforestry systems to identify the optimal conditions for pollinators.2We analysed the abundance and species composition of coffee flower-visiting bees in 15 agroforestry systems differing in distance to forest (important for wood-nesting species), light intensity (important for ground-nesting species), blossom cover of coffee and noncoffee-flowering plants, and species richness of flowering plants (as pollen and nectar resources) in Central Sulawesi (Indonesia). We examined which factors were most important for optimal pollination success. We carried out bagged and open pollination experiments in each agroforestry system, to measure the pollination efficiency of 15 bee species.3The number of social bee species decreased with distance to forest, whereas the number of solitary bee species increased with light intensity (less shade) and greater quantities of blossoms.4Fruit set of open pollinated flowers (as opposed to manually cross-pollinated flowers) increased with the diversity and abundance of flower-visiting bees. In the agroforestry systems studied, a bee community of 20 species or more led to a higher fruit set (95%) than a species-poor bee community of six species (70% fruit set).5Pollination activity by members of the species-rich solitary bee assemblage led to higher levels of fruit set than that arising from pollination activity by members of the more abundant social bee assemblage.6Synthesis and applications. A species-rich and abundant bee assemblage will facilitate high pollination success in lowland coffee. This will increase fruit set and coffee yield. Farmers can encourage different species of bees through simple management measures such as growing coffee in shade beneath a variety of trees; by pruning trees to increase levels of sunlight and numbers of flowering herbs; and by increasing the availability of nesting sites for solitary bees. Weed control and the use of herbicides should be kept to a minimum so that a diverse nectar and pollen resource is available to bees throughout the year. Natural forests and forest fragments should be preserved in the vicinity of coffee agroforestry systems (< 500 m) so that forest-nesting social bees can travel easily to the coffee fields to pollinate the flowers."],["dc.identifier.doi","10.1046/j.1365-2664.2003.00847.x"],["dc.identifier.gro","3149895"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6604"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","0021-8901"],["dc.subject","agroforestry systems; bees; Indonesia; isolation; lowland coffee; pollinator limitation; shade effects"],["dc.title","Pollination of Coffea canephora in relation to local and regional agroforestry management"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","308"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA"],["dc.bibliographiccitation.lastpage","313"],["dc.bibliographiccitation.volume","111"],["dc.contributor.author","Allan, Eric"],["dc.contributor.author","Bossdorf, Oliver"],["dc.contributor.author","Dormann, Carsten F."],["dc.contributor.author","Prati, Daniel"],["dc.contributor.author","Gossner, Martin M."],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Bluethgen, Nico"],["dc.contributor.author","Bellach, Michaela"],["dc.contributor.author","Birkhofer, Klaus"],["dc.contributor.author","Boch, Steffen"],["dc.contributor.author","Boehm, Stefan"],["dc.contributor.author","Boerschig, Carmen"],["dc.contributor.author","Chatzinotas, Antonis"],["dc.contributor.author","Christ, Sabina"],["dc.contributor.author","Daniel, Rolf"],["dc.contributor.author","Diekoetter, Tim"],["dc.contributor.author","Fischer, Christiane"],["dc.contributor.author","Friedl, Thomas"],["dc.contributor.author","Glaser, Karin"],["dc.contributor.author","Hallmann, Christine"],["dc.contributor.author","Hodac, Ladislav"],["dc.contributor.author","Hoelzel, Norbert"],["dc.contributor.author","Jung, Kirsten"],["dc.contributor.author","Klein, Alexandra Maria"],["dc.contributor.author","Klaus, Valentin H."],["dc.contributor.author","Kleinebecker, Till"],["dc.contributor.author","Krauss, Jochen"],["dc.contributor.author","Lange, Markus"],["dc.contributor.author","Morris, E. Kathryn"],["dc.contributor.author","Mueller, Joerg"],["dc.contributor.author","Nacke, Heiko"],["dc.contributor.author","Pasalic, Esther"],["dc.contributor.author","Rillig, Matthias C."],["dc.contributor.author","Rothenwoehrer, Christoph"],["dc.contributor.author","Schally, Peter"],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.author","Schulze, Waltraud"],["dc.contributor.author","Socher, Stephanie A."],["dc.contributor.author","Steckel, Juliane"],["dc.contributor.author","Steffan-Dewenter, Ingolf D."],["dc.contributor.author","Tuerke, Manfred"],["dc.contributor.author","Weiner, Christiane N."],["dc.contributor.author","Werner, Michael"],["dc.contributor.author","Westphal, Catrin"],["dc.contributor.author","Wolters, Volkmar"],["dc.contributor.author","Wubet, Tesfaye"],["dc.contributor.author","Gockel, Sonja"],["dc.contributor.author","Gorke, Martin"],["dc.contributor.author","Hemp, Andreas"],["dc.contributor.author","Renner, Swen C."],["dc.contributor.author","Schoening, Ingo"],["dc.contributor.author","Pfeiffer, Simone"],["dc.contributor.author","Koenig-Ries, Birgitta"],["dc.contributor.author","Buscot, Francois"],["dc.contributor.author","Linsenmair, Karl Eduard"],["dc.contributor.author","Schulze, Ernst-Detlef"],["dc.contributor.author","Weisser, Wolfgang W."],["dc.contributor.author","Fischer, Markus"],["dc.date.accessioned","2018-11-07T09:45:11Z"],["dc.date.available","2018-11-07T09:45:11Z"],["dc.date.issued","2014"],["dc.description.abstract","Although temporal heterogeneity is a well-accepted driver of biodiversity, effects of interannual variation in land-use intensity (LUI) have not been addressed yet. Additionally, responses to land use can differ greatly among different organisms; therefore, overall effects of land-use on total local biodiversity are hardly known. To test for effects of LUI (quantified as the combined intensity of fertilization, grazing, and mowing) and interannual variation in LUI (SD in LUI across time), we introduce a unique measure of whole-ecosystem biodiversity, multidiversity. This synthesizes individual diversity measures across up to 49 taxonomic groups of plants, animals, fungi, and bacteria from 150 grasslands. Multidiversity declined with increasing LUI among grasslands, particularly for rarer species and aboveground organisms, whereas common species and belowground groups were less sensitive. However, a high level of interannual variation in LUI increased overall multidiversity at low LUI and was even more beneficial for rarer species because it slowed the rate at which the multidiversity of rare species declined with increasing LUI. In more intensively managed grasslands, the diversity of rarer species was, on average, 18% of the maximum diversity across all grasslands when LUI was static over time but increased to 31% of the maximum when LUI changed maximally over time. In addition to decreasing overall LUI, we suggest varying LUI across years as a complementary strategy to promote biodiversity conservation."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft Priority Program [1374]"],["dc.identifier.doi","10.1073/pnas.1312213111"],["dc.identifier.isi","000329350700081"],["dc.identifier.pmid","24368852"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34560"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0027-8424"],["dc.title","Interannual variation in land-use intensity enhances grassland multidiversity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","315"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Animal Ecology"],["dc.bibliographiccitation.lastpage","323"],["dc.bibliographiccitation.volume","75"],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:53:56Z"],["dc.date.available","2017-09-07T11:53:56Z"],["dc.date.issued","2006"],["dc.description.abstract","1. Human alteration of natural ecosystems to agroecosystems continues to accelerate in tropical countries. The resulting world-wide decline of rain forest causes a mosaic landscape, comprising simple and complex agroecosystems and patchily distributed rain forest fragments of different quality. Landscape context and agricultural management can be expected to affect both species diversity and ecosystem services by trophic interactions. 2. In Central Sulawesi, Indonesia, 24 agroforestry systems, differing in the distance to the nearest natural forest (0–1415 m), light intensity (37·5–899·6 W/m−2) and number of vascular plant species (7–40 species) were studied. Ten standardized trap nests for bees and wasps, made from reed and knotweed internodes, were exposed in each study site. Occupied nests were collected every month, over a period totalling 15 months. 3. A total of 13 617 brood cells were reared to produce adults of 14 trap-nesting species and 25 natural enemy species, which were mostly parasitoids. The total number of species was affected negatively by increasing distance from forest and increased with light intensity of agroforestry systems. The parasitoids in particular appeared to benefit from nearby forests. Over a 500-m distance, the number of parasitoid species decreased from eight to five, and parasitism rates from 12% to 4%. 4.The results show that diversity and parasitism, as a higher trophic interaction and ecosystem service, are enhanced by (i) improved connectivity of agroecosystems with natural habitats such as agroforestry adjacent to rain forest and (ii) management practices to increase light availability in agroforestry, which also enhances richness of flowering plants in the understorey."],["dc.identifier.doi","10.1111/j.1365-2656.2006.01042.x"],["dc.identifier.gro","3150025"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6747"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","0021-8790"],["dc.subject","bees; parasitism; predation; rain forest conservation; wasps"],["dc.title","Rain forest promotes trophic interactions and diversity of trap-nesting Hymenoptera in adjacent agroforestry"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","299"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Ecology Letters"],["dc.bibliographiccitation.lastpage","314"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Kremen, Claire"],["dc.contributor.author","Williams, Neal M."],["dc.contributor.author","Aizen, Marcelo A."],["dc.contributor.author","Gemmill-Herren, Barbara"],["dc.contributor.author","LeBuhn, Gretchen"],["dc.contributor.author","Minckley, Robert"],["dc.contributor.author","Packer, Laurence"],["dc.contributor.author","Potts, Simon G."],["dc.contributor.author","Roulston, T'ai"],["dc.contributor.author","Steffan-Dewenter, Ingolf D."],["dc.contributor.author","Vazquez, Diego P."],["dc.contributor.author","Winfree, Rachael"],["dc.contributor.author","Adams, Laurie"],["dc.contributor.author","Crone, Elizabeth E."],["dc.contributor.author","Greenleaf, Sarah S."],["dc.contributor.author","Keitt, Timothy H."],["dc.contributor.author","Klein, Alexandra-Maria"],["dc.contributor.author","Regetz, James"],["dc.contributor.author","Ricketts, Taylor H."],["dc.date.accessioned","2018-11-07T11:03:28Z"],["dc.date.available","2018-11-07T11:03:28Z"],["dc.date.issued","2007"],["dc.description.abstract","Many ecosystem services are delivered by organisms that depend on habitats that are segregated spatially or temporally from the location where services are provided. Management of mobile organisms contributing to ecosystem services requires consideration not only of the local scale where services are delivered, but also the distribution of resources at the landscape scale, and the foraging ranges and dispersal movements of the mobile agents. We develop a conceptual model for exploring how one such mobile-agent-based ecosystem service (MABES), pollination, is affected by land-use change, and then generalize the model to other MABES. The model includes interactions and feedbacks among policies affecting land use, market forces and the biology of the organisms involved. Animal-mediated pollination contributes to the production of goods of value to humans such as crops; it also bolsters reproduction of wild plants on which other services or service-providing organisms depend. About one-third of crop production depends on animal pollinators, while 60-90% of plant species require an animal pollinator. The sensitivity of mobile organisms to ecological factors that operate across spatial scales makes the services provided by a given community of mobile agents highly contextual. Services vary, depending on the spatial and temporal distribution of resources surrounding the site, and on biotic interactions occurring locally, such as competition among pollinators for resources, and among plants for pollinators. The value of the resulting goods or services may feed back via market-based forces to influence land-use policies, which in turn influence land management practices that alter local habitat conditions and landscape structure. Developing conceptual models for MABES aids in identifying knowledge gaps, determining research priorities, and targeting interventions that can be applied in an adaptive management context."],["dc.identifier.doi","10.1111/j.1461-0248.2007.01018.x"],["dc.identifier.isi","000244883700006"],["dc.identifier.pmid","17355569"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51627"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1461-023X"],["dc.title","Pollination and other ecosystem services produced by mobile organisms: a conceptual framework for the effects of land-use change"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1436"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","1444"],["dc.bibliographiccitation.volume","52"],["dc.contributor.author","Garibaldi, L. A."],["dc.contributor.author","Bartomeus, I."],["dc.contributor.author","Bommarco, R."],["dc.contributor.author","Klein, A. M."],["dc.contributor.author","Cunningham, S. A."],["dc.contributor.author","Aizen, M. A."],["dc.contributor.author","Boreux, V."],["dc.contributor.author","Garratt, M. P. D."],["dc.contributor.author","Carvalheiro, L. G."],["dc.contributor.author","Kremen, C."],["dc.contributor.author","Morales, C. L."],["dc.contributor.author","Schüepp, C."],["dc.contributor.author","Chacoff, N. P."],["dc.contributor.author","Freitas, B. M."],["dc.contributor.author","Gagic, V."],["dc.contributor.author","Holzschuh, A."],["dc.contributor.author","Klatt, B. K."],["dc.contributor.author","Krewenka, K. M."],["dc.contributor.author","Krishnan, S."],["dc.contributor.author","Mayfield, M. M."],["dc.contributor.author","Motzke, I."],["dc.contributor.author","Otieno, M."],["dc.contributor.author","Petersen, J."],["dc.contributor.author","Potts, S. G."],["dc.contributor.author","Ricketts, T. H."],["dc.contributor.author","Rundlöf, M."],["dc.contributor.author","Sciligo, A."],["dc.contributor.author","Sinu, P. A."],["dc.contributor.author","Steffan-Dewenter, I."],["dc.contributor.author","Taki, H."],["dc.contributor.author","Tscharntke, T."],["dc.contributor.author","Vergara, C. H."],["dc.contributor.author","Viana, B. F."],["dc.contributor.author","Woyciechowski, M."],["dc.date.accessioned","2017-09-07T11:53:47Z"],["dc.date.available","2017-09-07T11:53:47Z"],["dc.date.issued","2015"],["dc.identifier.doi","10.1111/1365-2664.12530"],["dc.identifier.gro","3149975"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6692"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","0021-8901"],["dc.title","EDITOR'S CHOICE: REVIEW: Trait matching of flower visitors and crops predicts fruit set better than trait diversity"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]