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131 results for “solitary bee”
No impact of neonicotinoids on male solitary bees Osmia cornuta under semi-field conditions
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Data from: A split sex ratio in solitary and social nests of a facultatively social bee
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Data from: Not every sperm counts: male fertility in solitary bees, Osmia cornuta
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Data from: Nest suitability, fine-scale population structure and male-mediated dispersal of a solitary ground nesting bee in an urban landscape
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Data from: Trypanosomatid parasites infecting managed honeybees and wild solitary bees
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The neonicotinoid thiamethoxam impairs male fertility in solitary bees, Osmia cornuta
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Data from: Crop pollination services: complementary resource use by social vs solitary bees facing crops with contrasting flower supply
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Data from: Responses of social and solitary bees to pulsed floral resources
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Data from: Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi-field experiment
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Supplementary material 2 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Table S1
Figure 4 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Figure 4 Mean flight distances (with standard deviations) calculated from the 450 bee re-sightings shown in Suppl. material 2: Table S1, with year of observation given for Osmia cornuta, studied in both 2017 and 2018. All remaining data are from 2017. Species body sizes are from Amiet et al. (2004) and Scheuchl (2006). For the smaller species Chelostoma florisomne, C. rapunculi, and Heriades truncorum, which were colour-tagged rather than number-tagged, we cannot exclude repeated observations of the same individual.
Figure 3 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Figure 3 Marking of an Osmia cornuta male (photos: J. Kirndorfer) a application of the glue and b, c attaching of the apiarists' tag d a labeled male ready to take off.
Figure 2 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Figure 2 Marking of an Osmia cornuta female (photos: J. Kirndorfer). a, b A female caught with an insect net is transferred to the queen-marking tube and c, d pushed with the plunger to immobilize it (e, f a stylus is used to put glue on the mesonotum g, h the numbered colour plate is attached and i the bee released.
Figure 1 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Figure 1 Marked individuals of AChelostoma florisomneBC. rapunculiCHeriades truncorumDHoplitis aduncaEOsmia bicornis, and FOsmia cornuta.
Supplementary material 1 from: Hofmann MM, Fleischmann A, Renner SS (2020) Foraging distances in six species of solitary bees with body lengths of 6 to 15 mm, inferred from individual tagging, suggest 150 m-rule-of-thumb for flower strip distances. Journal of Hymenoptera Research 77: 105-117. https://doi.org/10.3897/jhr.77.51182
Figure S1. Map showing the garden lay-out and location of the nest boxes at with bees were tagged
Data from: Desynchronizations in bee-plant interactions cause severe fitness losses in solitary bees
1. Global warming can disrupt mutualistic interactions between solitary bees and plants when increasing temperature differentially changes the timing of interacting partners. One possible scenario is for insect phenology to advance more rapidly than plant phenology. 2. However, empirical evidence for fitness consequences due to temporal mismatches is lacking for pollinators and it remains unknown if bees have developed strategies to mitigate fitness losses following temporal mismatches. 3. We tested the effect of temporal mismatches on the fitness of three spring-emerging solitary bee species, including one pollen specialist. Using flight cages, we simulated (i) a perfect synchronization (from a bee perspective): bees and flowers occur simultaneously, (ii) a mismatch of three days and (iii) a mismatch of six days, with bees occurring earlier than flowers in the latter two cases. 4. A mismatch of six days caused severe fitness losses in all three bee species, as few bees survived without flowers. Females showed strongly reduced activity and reproductive output compared to synchronized bees. Fitness consequences of a three day mismatch were species-specific. Both the early-spring species Osmia cornuta and the mid-spring species Osmia bicornis produced the same number of brood cells after a mismatch of three days as under perfect synchronization. However, O. cornuta decreased the number of female offspring, whereas O. bicornis spread the brood cells over fewer nests, which may increase offspring mortality e.g. due to parasitoids. The late-spring specialist Osmia brevicornis produced fewer brood cells even after a mismatch of three days. Additionally, our results suggest that fitness losses after temporal mismatches are higher during warm than cold springs, as the naturally occurring temperature variability revealed that warm temperatures during starvation decreased the survival rate of O. bicornis. 5. We conclude that short temporal mismatches can cause clear fitness losses in solitary bees. Although our results suggest that bees have evolved species-specific strategies to mitigate fitness losses after temporal mismatches, the bees were not able to completely compensate for impacts on their fitness after temporal mismatches with their food resources.
Data from: Combined exposure to sublethal concentrations of an insecticide and a fungicide affect feeding, ovary development and longevity in a solitary bee
Pollinators in agroecosystems are often exposed to pesticide mixtures. Even at low concentrations, the effects of these mixtures on bee populations are difficult to predict due to potential synergistic interactions. We orally exposed newly-emerged females of the solitary bee Osmia bicornis to environmentally-realistic levels of clothianidin (neonicotinoid insecticide) and propiconazole (fungicide), singly and in combination. The amount of feeding solution consumed was highest in bees exposed to the neonicotinoid, and lowest in bees exposed to the pesticide mixture. Ovary maturation and longevity of bees of the neonicotinoid and the fungicide treatments did not differ from those of control bees. In contrast, bees exposed to the pesticide mixture showed slow ovary maturation and decreased longevity. We found a synergistic interaction between the neonicotinoid and the fungicide on survival probability. We also found an interaction between treatment and emergence time (an indicator of physiological condition) on longevity. Longevity was negatively correlated to physiological condition only in the fungicide and the mixture treatments. Delayed ovary maturation and premature death imply a shortened nesting period (highly correlated to fecundity in Osmia). Our findings provide a mechanism to explain the observed dynamics of solitary bee populations exposed to multiple chemical residues in agricultural environments.
Data from: Warmer temperatures advance flowering in a spring plant more strongly than emergence of two solitary spring bee species
Climate warming has the potential to disrupt plant-pollinator interactions or to increase competition of co-flowering plants for pollinators, due to species-specific phenological responses to temperature. However, studies focusing on the effect of temperature on solitary bee emergence and the flowering onset of their food plants under natural conditions are still rare. We studied the effect of temperature on the phenology of the two spring bees Osmia cornuta and Osmia bicornis, by placing bee cocoons on eleven grasslands differing in mean site temperature. On seven grasslands, we additionally studied the effect of temperature on the phenology of the red-list plant Pulsatilla vulgaris, which was the first flowering plant, and of co-flowering plants with later flowering. With a warming of 0.1 °C, the abundance-weighted mean emergence of O. cornuta males advanced by 0.4 days. Females of both species did not shift their emergence. Warmer temperatures advanced the abundance-weighted mean flowering of P. vulgaris by 1.3 days per 0.1 °C increase, but did not shift flowering onset of co-flowering plants. Competition for pollinators between P. vulgaris and co-flowering plants does not increase within the studied temperature range. We demonstrate that temperature advances plant flowering more strongly than bee emergence suggesting an increased risk of pollinator limitation for the first flowers of P. vulgaris.
Fig. 1 in The potential management of a ground-nesting, solitary bee: Anthophora abrupta (Hymenoptera: Apidae)
Fig. 1. The original (mother) nest aggregation of Anthophora abrupta discovered in Apr 2010. The bees were nesting in colloidal clay, in an open air shed, in Gainesville, Florida. Photo: Jason R. Graham.
Figure 1 in A nesting aggregation of the solitary bee Megachile atrata (Hymenoptera: Megachilidae) in the Philippines
Figure 1. Part of a low gulch in a field near Matuod, Batangas, Philippines. The core of a Megachile (Creightonella) atrata Smith nesting aggregation is at the foot of one of the banks (middle ground), where the positions of 67 nests are marked with bamboo stakes. These protrude on average about 15 cm above the ground. There is only one nest on the ledge above, two on the steep bank face, and none in the relatively bare foreground.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.