3 research outputs found
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First Records of \u3cem\u3ePerdita bequaerti\u3c/em\u3e (Hymenopertera: Andrenidae) from New England
We document the first New England records of the bee Perdita bequaerti Viereck. Perdita bequaerti is a specialist on Asteraceae flowers, especially Helianthus, and is native to much of eastern North America, where it is often associated with predominantly sandy habitats. Previous records indicated P. bequaerti reached the northeastern extent of its range in the state of New York, but in August 2019, during a survey of bees on Helianthus, we collected five specimens of P. bequaerti at two sites in western Massachusetts. Both sites were located on small-scale farms with abundant non-native Helianthus, on soils characteristic of sandy outwash plains and silty floodplains. These records constitute an extension of P. bequaerti\u27s known range into New England
Primer registro de amyelois transitella (walker) en el fruto del tamarindo: el caso de santa fe de Antioquia.
En el municipio de Santa Fe de Antioquia (Colombia), se hallĂł por primera vez la polilla mayor de la vaina o la polilla Amyelois transitella Walker de la naranja ombligona, afectando gravemente frutos maduros de tamarindo (Tamarindus
indica, Fabaceae). Esta leguminosa es una planta promisoria para el occidente antioqueño. Su demanda se ha incrementado en la Ăşltima dĂ©cada, tanto a nivel local como en el ámbito nacional. Debido a la alta demanda y las posibilidades de crecimiento poblacional del insecto en las bodegas de almacenamiento durante el proceso de postcosecha, se considera muy importante registrar su presencia en los cultivos de los municipios en esta parte del paĂs. De esta manera se contribuye a la generaciĂłn de alertas sanitarias dirigidas a los productores y a los que procesan su pulpa para facilitar su mercadeo, ya que todos están sufriendo pĂ©rdidas por el desconocimiento de las recomendaciones
sobre el manejo integrado de esta plaga.Edicion N°
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The Intersection of Bee and Flower Sexes: Pollen Availability Shapes Sex-Specific Bee Foraging Associations in Sunflower
We evaluated whether female or male bees were more abundant on sunflowers, whether female bees were more abundant on pollen-fertile or pollen-sterile sunflower cultivars, and whether the bee community differed between pollen-fertile and pollen-sterile sunflower cultivars. We further evaluated whether bee communities were shaped by local floral resources and landscape composition. We sampled bees visiting sunflowers (Helianthus spp.) from 14 farms in the Connecticut River Valley of western Massachusetts between 25 July to 27 September 2019, typically making two sampling visits to a farm. We also measured floral resource diversity and abundance at the farms, and categorized the landscape types at 500 m, 1000 m, 1500 m, and 2500 m radii around the farms using GIS data. All sampled bees were identified to species or species complex. An associated manuscript with this title and these authors is being submitted for publication.
These data are associated with a manuscript that is currently under consideration for publication, and will be embargoed until acceptance. If you are a reviewer or editor of the manuscript and would like to access the data, please email [email protected] to request access.https://scholarworks.umass.edu/data/1164/thumbnail.jp