Refine
Has Fulltext
- yes (53)
Is part of the Bibliography
- yes (53)
Year of publication
Document Type
- Journal article (53) (remove)
Language
- English (53)
Keywords
- biodiversity (8)
- pollen (6)
- bees (4)
- foraging (4)
- honey bees (4)
- Apis mellifera (3)
- ecosystem services (3)
- land use (3)
- larvae (3)
- oilseed rape (3)
- pollination (3)
- species richness (3)
- spillover (3)
- winter wheat (3)
- NDVI (2)
- Sentinel-2 (2)
- abundance (2)
- agriculture (2)
- agroecosystems (2)
- altitudinal gradient (2)
- canola (2)
- climate (2)
- climate change (2)
- diversity (2)
- diversity gradients (2)
- ecosystem function (2)
- flowers (2)
- fruit set (2)
- fusion (2)
- global change (2)
- honeybee (2)
- juvenile hormone (2)
- land-use change (2)
- nutrition (2)
- species diversity (2)
- sustainable agriculture (2)
- trap nests (2)
- triglycerides (2)
- 16S ribosomal-RNA (1)
- African agriculture (1)
- Agricultural intensification (1)
- Agro-ecology (1)
- Alps (1)
- Anthropocene (1)
- BBCH (1)
- Bacillus (1)
- Bee abundance (1)
- Chrysomelidae (1)
- Climate Change (1)
- Colony growth (1)
- Conservation (1)
- Context (1)
- Curculionidae (1)
- DNA barcoding (1)
- Densities (1)
- Drought (1)
- Ecology (1)
- Ecosystem services (1)
- Environmental impact (1)
- European orchard bee (Osmia cornuta) (1)
- Foragers (1)
- Grasses (1)
- Habitats (1)
- Herbivory (1)
- ITS2 (1)
- Insect pests (1)
- Insects (1)
- Landsat (1)
- Landsat 8 (1)
- Landscape ecology (1)
- Landwirtschaft (1)
- Leaves (1)
- Legume crops (1)
- Legumes (1)
- LiDAR (1)
- Locomotor activity (1)
- MOD13Q1 (1)
- MODIS (1)
- NGS (1)
- Nesting resources (1)
- Nurses (1)
- Oilseed rape (1)
- Osmia bicornis (1)
- PER (1)
- Paenibacillus (1)
- Plant-herbivore interactions (1)
- Plant-insect interactions (1)
- Pollen (1)
- Pollination (1)
- Polymerase chain reaction (1)
- Richness (1)
- Scarabaeidae (1)
- Small-holder agriculture (1)
- Social entrainment (1)
- South Korea (1)
- Sporosarcina (1)
- T-RFLP analysis (1)
- Tanzania (1)
- Temperature rhythms (1)
- Tropical agriculture (1)
- Vicia faba (L.) (1)
- Volatile Organic Compound (VOC) (1)
- Yield (1)
- abiotic (1)
- advanced (1)
- agri-environment schemes (1)
- agricultural intensification (1)
- agricultural landscapes (1)
- agroecology (1)
- agroforestry (1)
- altitudinal gradients (1)
- antagonists (1)
- arthropod predators (1)
- arthropods (1)
- artificial rearing (1)
- bacillus thuringiensis (1)
- bacteria (1)
- bacterial pathogens (1)
- bacterial transmission (1)
- balance (1)
- bats (1)
- bee community (1)
- bee pollinator (1)
- bee pollinators (1)
- beech forests (1)
- behavior (1)
- biodiversity conservation (1)
- biodiversity-ecosystem functioning (1)
- biofuels (1)
- biological control (1)
- biotic interaction (1)
- bird diversity (1)
- birds (1)
- body-size (1)
- bottom‐up and top‐down control (1)
- brain development (1)
- butterflies (1)
- cabbage Brassica oleracea var. capitata (1)
- carbon dioxide (CO2) (1)
- cocoa (1)
- coexistence (1)
- cognition (1)
- coleoptera (1)
- colonies (1)
- communities (1)
- community ecology (1)
- community functional-responses (1)
- competition (1)
- confocal laser scanning microscopy (1)
- conversion (1)
- coprophagous beetles (1)
- corn pollen (1)
- crop diversity (1)
- crop modeling (1)
- crop models (1)
- crop pollination (1)
- crops (1)
- decay (1)
- decision making (1)
- decision-making (1)
- decline (1)
- declines (1)
- decomposition (1)
- delayed snowmelt (1)
- density (1)
- diet (1)
- differential olfactory conditioning (1)
- distribution (1)
- disturbance gradient (1)
- ecological network (1)
- ecology (1)
- economy services (1)
- ecosystemservices (1)
- elevation (1)
- elevation gradient (1)
- elevational gradients (1)
- enercy-richness hypothesis (1)
- enhance (1)
- environmental impact (1)
- european countries (1)
- extinction dynamics (1)
- feeding guilds (1)
- field boundaries (1)
- floral resource distribution (1)
- flower visitors (1)
- flowering (1)
- flowering plants (1)
- food resources (1)
- foragers (1)
- foraging behaviour (1)
- forest (1)
- forest management (1)
- forest proximity (1)
- forest soils (1)
- fruit-quality (1)
- functional diversity (1)
- functional traits (1)
- generalization (1)
- genetically modified crops (1)
- genetically modified plants (1)
- geographic biases (1)
- global dataset (1)
- grassland (1)
- grasslands (1)
- grazing (1)
- gut bacteria (1)
- habitat types (1)
- habitats (1)
- hand pollination (1)
- herbivores (1)
- herbivorous beetles (1)
- herbivory (1)
- heterogenity (1)
- high throughput sequencing (1)
- hill numbers (1)
- honey (1)
- honeybees (1)
- illumina MiSeq platform (1)
- in vitro (1)
- insect abundance (1)
- insect pests (1)
- insect populations (1)
- intensification (1)
- land use intensification (1)
- land-use (1)
- land-use intensification (1)
- land-use intensity (1)
- landsat (1)
- landscape compositionv (1)
- landscape diversity (1)
- landscape ecology (1)
- landscape heterogeneity (1)
- life-history traits (1)
- machine learning (1)
- macroecology (1)
- maize (1)
- managed grasslands (1)
- mechanistic modelling (1)
- metaanalysis (1)
- microbiome (1)
- more-individuals hypothesis (1)
- morphometry (1)
- multivariate analyses (1)
- mushroom bodies (1)
- mutualistic interactions (1)
- native bees (1)
- native pollinators (1)
- native populations (1)
- necrobiome (1)
- nest site selection (1)
- network analysis (1)
- network specialization index (H2′) (1)
- neuroanatomy (1)
- next generation sequencing (1)
- niche (1)
- non-crop habitats (1)
- nurse bees (1)
- nursing (1)
- oil seed rape (1)
- oil-seed rape (1)
- orientation (1)
- osmia (1)
- ozone (O3) (1)
- palynolog (1)
- partial least square regression (1)
- pathogen (1)
- patterns (1)
- pest (1)
- phytophagous beetles (1)
- plant diversity (1)
- plant ecology (1)
- plant functional traits (1)
- plant guilds (1)
- plant physiology (1)
- plant-herbivore interactions (1)
- plant-insect interactions (1)
- plant–insect interactions (1)
- pollen provisions (1)
- pollination ecology (1)
- pollination services (1)
- pollinator (1)
- pollinator decline (1)
- pollinator diversity (1)
- precision agriculture (1)
- predictive modeling (1)
- proboscis extension reflex (1)
- productivity (1)
- proportion of seminatural habitat (1)
- protected forests (1)
- random forest (1)
- recruitment (1)
- resolution (1)
- resource selection (1)
- risk assessment (1)
- robustness (1)
- root (1)
- satellite (1)
- season (1)
- secondary invader (1)
- semi-natural habitats (1)
- sentinel-2 (1)
- sequential introduction (1)
- sequestration (1)
- shade cover (1)
- snowmelt (1)
- solitary bee (1)
- specialization (1)
- species‐area hypothesis (1)
- stocks (1)
- sustainable intensification (1)
- swarming (1)
- task allocation (1)
- taxonomic biases (1)
- temperature‐mediated resource exploitation hypothesis (1)
- temperature‐richness hypothesis (1)
- time lag (1)
- transient dynamics (1)
- tree cavities (1)
- trophic interactions (1)
- trophic levels (1)
- tropical ecology (1)
- undernourishment (1)
- unmanaged broadleaved forests (1)
- urban (1)
- urbanization (1)
- wasps (1)
- water (1)
- wild (1)
- wild bees (1)
- wild honeybees (1)
- wild plant pollination (1)
- worker honeybees (1)
Institute
- Theodor-Boveri-Institut für Biowissenschaften (53) (remove)
Sonstige beteiligte Institutionen
ResearcherID
- D-1221-2009 (1)
Agricultural Policies Exacerbate Honeybee Pollination Service Supply-Demand Mismatches Across Europe
(2014)
Declines in insect pollinators across Europe have raised concerns about the supply of pollination services to agriculture. Simultaneously, EU agricultural and biofuel policies have encouraged substantial growth in the cultivated area of insect pollinated crops across the continent. Using data from 41 European countries, this study demonstrates that the recommended number of honeybees required to provide crop pollination across Europe has risen 4.9 times as fast as honeybee stocks between 2005 and 2010. Consequently, honeybee stocks were insufficient to supply >90% of demands in 22 countries studied. These findings raise concerns about the capacity of many countries to cope with major losses of wild pollinators and highlight numerous critical gaps in current understanding of pollination service supplies and demands, pointing to a pressing need for further research into this issue.
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.
Background. Up to 75% of crop species benefit at least to some degree from animal pollination for fruit or seed set and yield. However, basic information on the level of pollinator dependence and pollinator contribution to yield is lacking for many crops. Even less is known about how insect pollination affects crop quality. Given that habitat loss and agricultural intensification are known to decrease pollinator richness and abundance, there is a need to assess the consequences for different components of crop production. Methods. We used pollination exclusion on flowers or inflorescences on a whole plant basis to assess the contribution of insect pollination to crop yield and quality in four flowering crops (spring oilseed rape, field bean, strawberry, and buckwheat) located in four regions of Europe. For each crop, we recorded abundance and species richness of flower visiting insects in ten fields located along a gradient from simple to heterogeneous landscapes. Results. Insect pollination enhanced average crop yield between 18 and 71% depending on the crop. Yield quality was also enhanced in most crops. For instance, oilseed rape had higher oil and lower chlorophyll contents when adequately pollinated, the proportion of empty seeds decreased in buckwheat, and strawberries' commercial grade improved; however, we did not find higher nitrogen content in open pollinated field beans. Complex landscapes had a higher overall species richness of wild pollinators across crops, but visitation rates were only higher in complex landscapes for some crops. On the contrary, the overall yield was consistently enhanced by higher visitation rates, but not by higher pollinator richness. Discussion. For the four crops in this study, there is clear benefit delivered by pollinators on yield quantity and/or quality, but it is not maximized under current agricultural intensification. Honeybees, the most abundant pollinator, might partially compensate the loss of wild pollinators in some areas, but our results suggest the need of landscape-scale actions to enhance wild pollinator populations.