Declines of pollinators have engendered worldwide concern, but trends in the faunas of most insect pollinators, including bees, remain uncertain. We are studying the bee fauna of southern Rhode Island to provide baseline information about the current fauna, and information about bee-flower interactions.
The Challenge: The bee fauna of Rhode Island remains poorly known, except for holdings in the University of Rhode Island insect collection and data from scattered other sources. Bee diversity in other northeastern states is being described (some faunal studies were recently published), and we are contributing to that effort by characterizing the Rhode Island bee fauna.
The Science: Bees in the University of Rhode Island insect collection are now listed in a computer database, and Rhode Island bee collections from scattered sources are being compiled. Surveys of bees visiting cultivated highbush blueberry, and of bees at Rhode Island sites including Napatree Point, the Great Swamp, and the Carter Preserve, have been performed using standardized and repeatable protocols. We are also investigating bee-flower interactions, including effects of nectar robbery by carpenter bees on fruit set and quality of highbush blueberries.
The Challenge: Data from all available sources, including the University of Rhode Island insect collection, American Museum of Natural History databases, recent field surveys, and scattered collections, are being are being compiled to produce a database of the bee fauna of Rhode Island.
Below are publications associated with this project.
The bee fauna of coastal Napatree Point and two inland sites in southern Rhode Island
Effect of corolla slitting and nectar robbery by the Eastern Carpenter Bee (Hymenoptera: Apidae) on fruit quality of Vaccinium corymbosum, L.; (Ericales: Ericaceae).
Eastern Carpenter Bee (Hymenoptera: Apidae): Nest structure, nest cell provisions, and trap nest acceptance in Rhode Island
Native bee diversity and pollen foraging specificity in cultivated highbush blueberry (Ericaceae: Vaccinium corymbosum) in Rhode Island
Below are partners associated with this project.
- Overview
Declines of pollinators have engendered worldwide concern, but trends in the faunas of most insect pollinators, including bees, remain uncertain. We are studying the bee fauna of southern Rhode Island to provide baseline information about the current fauna, and information about bee-flower interactions.
The Challenge: The bee fauna of Rhode Island remains poorly known, except for holdings in the University of Rhode Island insect collection and data from scattered other sources. Bee diversity in other northeastern states is being described (some faunal studies were recently published), and we are contributing to that effort by characterizing the Rhode Island bee fauna.
The Science: Bees in the University of Rhode Island insect collection are now listed in a computer database, and Rhode Island bee collections from scattered sources are being compiled. Surveys of bees visiting cultivated highbush blueberry, and of bees at Rhode Island sites including Napatree Point, the Great Swamp, and the Carter Preserve, have been performed using standardized and repeatable protocols. We are also investigating bee-flower interactions, including effects of nectar robbery by carpenter bees on fruit set and quality of highbush blueberries.
The Challenge: Data from all available sources, including the University of Rhode Island insect collection, American Museum of Natural History databases, recent field surveys, and scattered collections, are being are being compiled to produce a database of the bee fauna of Rhode Island.
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Below are publications associated with this project.
The bee fauna of coastal Napatree Point and two inland sites in southern Rhode Island
We surveyed the bee fauna at Napatree Point, a coastal barrier beach in southwestern Rhode Island, using bee-bowl and netting samples, and compared results to bee-bowl samples at 2 inland sites. We collected a total of 53 species and morphospecies at Napatree Point, including 5 likely Rhode Island state records and several coastal dune and sand-nesting species that were not found inland. The compaEffect of corolla slitting and nectar robbery by the Eastern Carpenter Bee (Hymenoptera: Apidae) on fruit quality of Vaccinium corymbosum, L.; (Ericales: Ericaceae).
Eastern carpenter bees, Xylocopa virginica (L.) (Hymenoptera: Apidae), are among the most abundant native bee visitors to highbush blueberry, Vaccinium corymbosum L., flowers in the northeastern United States, and they sometimes display corolla-slitting behavior to rob nectar. We studied foraging behavior of X. virginica on 14 blueberry cultivars in an experimental planting in Rhode Island, and asEastern Carpenter Bee (Hymenoptera: Apidae): Nest structure, nest cell provisions, and trap nest acceptance in Rhode Island
Analysis of pollen provisions in Xylocopa virginica (L.) nests in southern Rhode Island showed that this species produced pollen loaves from 21 different genera of plants in 2016, 19 in 2017, and 39 in 2018. Antirrhinium majus L. (garden snapdragon) pollen was the most common type collected in all three years (21.4%). Overall, wind-pollinated tree pollen comprised 22.1% of all pollen loaves. BluebNative bee diversity and pollen foraging specificity in cultivated highbush blueberry (Ericaceae: Vaccinium corymbosum) in Rhode Island
We identified 41 species of native bees from a total of 1,083 specimens collected at cultivated highbush blueberry plantings throughout Rhode Island in 2014 and 2015. Andrena spp., Bombus spp., and Xylocopa virginica (L.) were collected most often. Bombus griseocollis (DeGeer), B. impatiens Cresson, B. bimaculatus Cresson, B. perplexus Cresson, and Andrena vicina Smith collected the largest mean n - Partners
Below are partners associated with this project.