TY  - JOUR
A1  - Peters, Marcell K.
A1  - Hemp, Andreas
A1  - Appelhans, Tim
A1  - Behler, Christina
A1  - Classen, Alice
A1  - Detsch, Florian
A1  - Ensslin, Andreas
A1  - Ferger, Stefan W.
A1  - Frederiksen, Sara B.
A1  - Gebert, Frederike
A1  - Haas, Michael
A1  - Helbig-Bonitz, Maria
A1  - Hemp, Claudia
A1  - Kindeketa, William J.
A1  - Mwangomo, Ephraim
A1  - Ngereza, Christine
A1  - Otte, Insa
A1  - Röder, Juliane
A1  - Rutten, Gemma
A1  - Costa, David Schellenberger
A1  - Tardanico, Joseph
A1  - Zancolli, Giulia
A1  - Deckert, Jürgen
A1  - Eardley, Connal D.
A1  - Peters, Ralph S.
A1  - Rödel, Mark-Oliver
A1  - Schleuning, Matthias
A1  - Ssymank, Axel
A1  - Kakengi, Victor
A1  - Zhang, Jie
A1  - Böhning-Gaese, Katrin
A1  - Brandl, Roland
A1  - Kalko, Elisabeth K.V.
A1  - Kleyer, Michael
A1  - Nauss, Thomas
A1  - Tschapka, Marco
A1  - Fischer, Markus
A1  - Steffan-Dewenter, Ingolf
T1  - Predictors of elevational biodiversity gradients change from single taxa to the multi-taxa community level
JF  - Nature Communications
N2  - The factors determining gradients of biodiversity are a fundamental yet unresolved topic in ecology. While diversity gradients have been analysed for numerous single taxa, progress towards general explanatory models has been hampered by limitations in the phylogenetic coverage of past studies. By parallel sampling of 25 major plant and animal taxa along a 3.7 km elevational gradient on Mt. Kilimanjaro, we quantify cross-taxon consensus in diversity gradients and evaluate predictors of diversity from single taxa to a multi-taxa community level. While single taxa show complex distribution patterns and respond to different environmental factors, scaling up diversity to the community level leads to an unambiguous support for temperature as the main predictor of species richness in both plants and animals. Our findings illuminate the influence of taxonomic coverage for models of diversity gradients and point to the importance of temperature for diversification and species coexistence in plant and animal communities.
KW  - community ecology
KW  - macroecology
KW  - tropical ecology
KW  - biodiversity
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-169374
VL  - 7
ER  - 
TY  - JOUR
A1  - De Palma, Adriana
A1  - Abrahamczyk, Stefan
A1  - Aizen, Marcelo A.
A1  - Albrecht, Matthias
A1  - Basset, Yves
A1  - Bates, Adam
A1  - Blake, Robin J.
A1  - Boutin, Céline
A1  - Bugter, Rob
A1  - Connop, Stuart
A1  - Cruz-López, Leopoldo
A1  - Cunningham, Saul A.
A1  - Darvill, Ben
A1  - Diekötter, Tim
A1  - Dorn, Silvia
A1  - Downing, Nicola
A1  - Entling, Martin H.
A1  - Farwig, Nina
A1  - Felicioli, Antonio
A1  - Fonte, Steven J.
A1  - Fowler, Robert
A1  - Franzen, Markus Franzén
A1  - Goulson, Dave
A1  - Grass, Ingo
A1  - Hanley, Mick E.
A1  - Hendrix, Stephen D.
A1  - Herrmann, Farina
A1  - Herzog, Felix
A1  - Holzschuh, Andrea
A1  - Jauker, Birgit
A1  - Kessler, Michael
A1  - Knight, M. E.
A1  - Kruess, Andreas
A1  - Lavelle, Patrick
A1  - Le Féon, Violette
A1  - Lentini, Pia
A1  - Malone, Louise A.
A1  - Marshall, Jon
A1  - Martínez Pachón, Eliana
A1  - McFrederick, Quinn S.
A1  - Morales, Carolina L.
A1  - Mudri-Stojnic, Sonja
A1  - Nates-Parra, Guiomar
A1  - Nilsson, Sven G.
A1  - Öckinger, Erik
A1  - Osgathorpe, Lynne
A1  - Parra-H, Alejandro
A1  - Peres, Carlos A.
A1  - Persson, Anna S.
A1  - Petanidou, Theodora
A1  - Poveda, Katja
A1  - Power, Eileen F.
A1  - Quaranta, Marino
A1  - Quintero, Carolina
A1  - Rader, Romina
A1  - Richards, Miriam H.
A1  - Roulston, T’ai
A1  - Rousseau, Laurent
A1  - Sadler, Jonathan P.
A1  - Samnegård, Ulrika
A1  - Schellhorn, Nancy A.
A1  - Schüepp, Christof
A1  - Schweiger, Oliver
A1  - Smith-Pardo, Allan H.
A1  - Steffan-Dewenter, Ingolf
A1  - Stout, Jane C.
A1  - Tonietto, Rebecca K.
A1  - Tscharntke, Teja
A1  - Tylianakis, Jason M.
A1  - Verboven, Hans A. F.
A1  - Vergara, Carlos H.
A1  - Verhulst, Jort
A1  - Westphal, Catrin
A1  - Yoon, Hyung Joo
A1  - Purvis, Andy
T1  - Predicting bee community responses to land-use changes: Effects of geographic and taxonomic biases
JF  - Scientific Reports
N2  - Land-use change and intensification threaten bee populations worldwide, imperilling pollination services. Global models are needed to better characterise, project, and mitigate bees' responses to these human impacts. The available data are, however, geographically and taxonomically unrepresentative; most data are from North America and Western Europe, overrepresenting bumblebees and raising concerns that model results may not be generalizable to other regions and taxa. To assess whether the geographic and taxonomic biases of data could undermine effectiveness of models for conservation policy, we have collated from the published literature a global dataset of bee diversity at sites facing land-use change and intensification, and assess whether bee responses to these pressures vary across 11 regions (Western, Northern, Eastern and Southern Europe; North, Central and South America; Australia and New Zealand; South East Asia; Middle and Southern Africa) and between bumblebees and other bees. Our analyses highlight strong regionally-based responses of total abundance, species richness and Simpson's diversity to land use, caused by variation in the sensitivity of species and potentially in the nature of threats. These results suggest that global extrapolation of models based on geographically and taxonomically restricted data may underestimate the true uncertainty, increasing the risk of ecological surprises.
KW  - bee community
KW  - land-use change
KW  - intensification
KW  - geographic biases
KW  - taxonomic biases
KW  - global dataset
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-167642
VL  - 6
ER  - 
TY  - JOUR
A1  - Holzschuh, Andrea
A1  - Dainese, Matteo
A1  - Gonzalez-Varo, Juan P.
A1  - Mudri-Stojnic, Sonja
A1  - Riedinger, Verena
A1  - Rundlöf, Maj
A1  - Scheper, Jeroen
A1  - Wickens, Jennifer B.
A1  - Wickens, Victoria J.
A1  - Bommarco, Riccardo
A1  - Kleijn, David
A1  - Potts, Simon G.
A1  - Roberts, Stuart P. M.
A1  - Smith, Henrik G.
A1  - Vilà, Montserrat
A1  - Vujic, Ante
A1  - Steffan-Dewenter, Ingolf
T1  - Mass-flowering crops dilute pollinator abundance in agricultural landscapes across Europe
JF  - Ecology Letters
N2  - Mass-flowering crops (MFCs) are increasingly cultivated and might influence pollinator communities in MFC fields and nearby semi-natural habitats (SNHs). Across six European regions and 2 years, we assessed how landscape-scale cover of MFCs affected pollinator densities in 408 MFC fields and adjacent SNHs. In MFC fields, densities of bumblebees, solitary bees, managed honeybees and hoverflies were negatively related to the cover of MFCs in the landscape. In SNHs, densities of bumblebees declined with increasing cover of MFCs but densities of honeybees increased. The densities of all pollinators were generally unrelated to the cover of SNHs in the landscape. Although MFC fields apparently attracted pollinators from SNHs, in landscapes with large areas of MFCs they became diluted. The resulting lower densities might negatively affect yields of pollinator- dependent crops and the reproductive success of wild plants. An expansion of MFCs needs to be accompanied by pollinator-supporting practices in agricultural landscapes.
KW  - wild plant pollination
KW  - Colony growth
KW  - Densities
KW  - Context
KW  - crop pollination
KW  - Oilseed rape
KW  - Nesting resources
KW  - Bee abundance
KW  - Yield
KW  - Richness
KW  - Habitats
KW  - Agricultural intensification
KW  - agri-environment schemes
KW  - biofuels
KW  - ecosystem services
KW  - field boundaries
KW  - landscape compositionv
KW  - non-crop habitats
KW  - semi-natural habitats
KW  - spillover
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-187356
VL  - 19
IS  - 10
ER  - 
TY  - JOUR
A1  - Beer, Katharina
A1  - Steffan-Dewenter, Ingolf
A1  - Härtel, Stephan
A1  - Helfrich-Förster, Charlotte
T1  - A new device for monitoring individual activity rhythms of honey bees reveals critical effects of the social environment on behavior
JF  - Journal of Comparative Physiology A
N2  - Chronobiological studies of individual activity rhythms in social insects can be constrained by the artificial isolation of individuals from their social context. We present a new experimental set-up that simultaneously measures the temperature rhythm in a queen-less but brood raising mini colony and the walking activity rhythms of singly kept honey bees that have indirect social contact with it. Our approach enables monitoring of individual bees in the social context of a mini colony under controlled laboratory conditions. In a pilot experiment, we show that social contact with the mini colony improves the survival of monitored young individuals and affects locomotor activity patterns of young and old bees. When exposed to conflicting Zeitgebers consisting of a light-dark (LD) cycle that is phase-delayed with respect to the mini colony rhythm, rhythms of young and old bees are socially synchronized with the mini colony rhythm, whereas isolated bees synchronize to the LD cycle. We conclude that the social environment is a stronger Zeitgeber than the LD cycle and that our new experimental set-up is well suited for studying the mechanisms of social entrainment in honey bees.
KW  - Social entrainment
KW  - Foragers
KW  - Nurses
KW  - Locomotor activity
KW  - Temperature rhythms
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-188030
VL  - 202
IS  - 8
ER  -