Monitoring, assessing and evaluating the pollinator species (Hymenoptera: apoidea) found on a native brush site, a revegetated site and an urban garden

摘要

This research presents the findings of a pollinator diversity study that took placeat three study sites. Although variation in pollinator diversity occurred between thethree sites, fewer pollinators than expected were recorded from the La Joya Tract(revegetated site). Numerous genera and species were recorded from the Havana Tract(native site) as well as the Valley Nature Center (urban garden). In contrast, the La JoyaTract had a comparatively depauperate pollinator fauna.The numbers of pollinator genera and species recorded from the three study siteswere decreased in comparison to the total number of genera and species recorded fromHidalgo County. Hidalgo County has 35 known genera and 75 species of beesdocumented to date. About 40% of the genera and 23% of the species recorded fromHidalgo County were recorded from the Havana Tract in this study, while a mere 8.5%of the genera and 4% of the species were reported from the La Joya Tract and 34% ofthe genera and 16% of the species were reported from the Valley Nature Center.Although the vascular plant species identified from these study sites were diverse, the floral rewards they provided yielded an insight as to what was going on interms of pollinator diversity. Plants may yield nectar or pollen floral rewards or both insome cases to pollinators. The current study provides evidence that revegetation of landwith plants that primarily provide nectar rewards will result in fewer observed bee taxathan from land revegetated with plants that provide a mix of nectar and pollen floralrewards.