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352 results for “Bee nesting”
Data from: Nesting and interaction of stingless bees (Apidae: Meliponini) in herbaceous plants in the Agricultural Campus of the School of Agricultural and Veterinary Sciences of UNAN-Leon, Nicaragua
<p>En este estudio se determinó la riqueza, abundancia, densidad y distribución geográfica de nidos de abejas sin aguijón en el Campus Agropecuario de la UNAN-León, de igual manera se determinó la interacción de abejas sin aguijón en plantas en floración. Asimismo, se identificaron los sustratos de anidación, se revisaron todos los árboles e infraestructura del Campus Agropecuario y se muestrearon las arvenses y arbusto en floración entre los meses de abril a octubre del 2022. </p>
Grassland extensification enhances nest densities of ground-nesting wild bees
<ol> <li>Ground-nesting wild bees provide essential pollination services in agroecosystems, but they are jeopardized by intensive agricultural management. To mitigate such negative impacts, agri-environment schemes have been implemented. While the success of enhancing floral food resources is relatively well studied, the role of agri-environmental schemes in providing suitable nesting habitat remains underexplored.</li> <li>We studied the effectiveness of meadow extensification according to the Swiss agri-environment scheme in promoting nesting of ground-nesting bees. Using a paired design, we quantified their nests during four rounds (March-June) in pairs of nine randomly selected extensively (i.e. no fertilizer input, postponed first mowing) and nine intensively managed meadows with similar soil properties, slope, exposure and landscape context. Nest numbers and vegetation characteristics were surveyed in areas of 250 m<sup>2</sup>. Vegetation properties were also assessed in 0.5 m × 0.5 m plots around nest locations and randomly selected locations without nests within each meadow to assess their role as drivers of nesting incidence (nest presence/absence) at this plot scale.</li> <li>We found substantially higher nest numbers of ground-nesting bees in extensively (mean ± SE per sampling round = 46.8 ± 14.2) compared to intensively managed meadows (0.8 ± 0.3; no nests in three out of nine intensively managed meadows). Extensively managed meadows harboured nests of several dominant crop pollinator species, including aggregations of e.g. <em>Lasioglossum malachurum</em> contributing to high nest densities in some of them. Number of nests was negatively related to grass cover and vegetation height, which were lower in extensively compared to intensively managed meadows. Plot-level nesting incidence increased with bare ground and moss cover, and decreased with grass cover.</li> <li> <em>Synthesis and applications.</em> Our study shows that extensively managed meadows are better nesting habitats for ground-nesting bees than intensively managed meadows, if reduced management intensity is associated with altered vegetation characteristics such as reduced grass cover and vegetation height, and small-scale availability of bare ground, driving these effects. This highlights that maintaining and promoting extensive management of meadows can promote ground-nesting wild bees, including dominant crop pollinators, not only by enhancing floral resources but also by improving nesting opportunities in agroecosystems.</li> </ol>
Data from: Large fitness benefits of social nesting in a small carpenter bee
<p>Facultatively social insects are an optimal model group for the study of the emergence of cooperation between individuals. Factors influencing the fitness benefits of social nesting are still debated. Non-reproductive subordinates can benefit from indirect fitness benefits due to increasing reproductive success of related individuals or direct fitness benefits due to direct future reproduction. Here, we studied the costs and benefits of social nesting in the small carpenter bee <em>Ceratina albosticta</em>. From demographic data and within-nest relatedness we obtained key parameters for assessing the fitness of solitary females, social primaries, and social secondaries. <em>C. albosticta</em> were found to usually mate with one male and multiple mating is not common although exists at low frequencies. Social nests usually contain two females, which were found to be related (full sisters), but also some females were unrelated to each other. Patterns of parentage from microsatellite loci revealed that only one female reproduces in social nests. Our results show that relatedness, per capita brood productivity, and offspring survival strongly increase the fitness benefits of social nesting strategies. Social secondaries, when related to the social primaries, have higher inclusive fitness than solitary females, but unrelated social nesting females had no indirect fitness and much reduced inclusive fitness compared to solitary females. Interestingly, average fitness benefits of the social secondary were higher than solitary females. This study provides important empirical data on the costs and benefits of sociality in a facultatively social bee and sets the stage for future comparative studies.</p>
Data from: Large fitness benefits of social nesting in a small carpenter bee
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Data from: Osmia3DNest – novel designed 3D printed artificial nest for solitary cavity-nesting bees
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The earlier the better? Nesting timing and reproductive success in subalpine cavity-nesting bees
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Bumble bee nest density is lower in drought years
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The significance of genetic distance and nest occupation on the worker-worker similarity of gut bacterial microbiome and cuticular hydrocarbon profile in a sweat bee
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Grassland extensification enhances nest densities of ground-nesting wild bees
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Single and combined exposure to ‘bee safe’ pesticides alter behaviour and offspring production in a ground-nesting solitary bee (Xenoglossa pruinosa)
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Data from: Pollen diet, more than geographic distance, shapes provision microbiome composition in two species of cavity-nesting bees
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Data from: The role of wild bees and cavity-nesting wasps as ecological indicators of the last traditionally managed meadows in Eastern Europe
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Answering key bumble bee conservation questions by studying discovered wild nests: A Bombus affinis case study
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Contrasting effects of vineyard type, soil and landscape factors on ground- versus above-ground nesting bees
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An organizing feature of bumble bee life history: worker emergence promotes queen reproduction and survival in young nests
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Data from: A leaf-surface fungus mediates interactions between leafcutter bees and the plants they cut to line their nests
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Data from: Plant traits associated with nesting resources and flower availability determine bee’s functional trait diversity in a highly diverse tropical Amazon Forest
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Data from: Phenotypic integration in an extended phenotype: among‐individual variation in nest‐building traits of the alfalfa leafcutting bee (Megachile rotundata)
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How population structure and nest membership shape pathogen patterns in bumble bees?
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Data from: Host identity, nest quality, and parasitism strategy: influences on body size variation in parasitoid bees and wasps
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OpenNeuro
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