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The roles of phenology and reward structure in the pollination biology of wild sunflower (Helianthus annuus L., Asteraceae).
ABSTRACT A seven-year study of Helianthus annuus L., the common sunflower, in its native range in Texas has shown that the phenology and reward production schedules of individual florets within aExpand
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Floral Rewards: Alternatives to Pollen and Nectar
In angiosperms selection has led to the utilization of numerous substances other than pollen and nectar that help to insure repeated visitation by pollinating animals. Here, we group the variousExpand
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The evolution of a pollen diet: Host choice and diet breadth of Andrena bees (Hymenoptera: Andrenidae)
We investigate of two aspects of pollen diet of Andrena bees: the evolution of diet breadth within nearctic representatives of the genus, which includes both polylectic and oligolectic species; andExpand
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Components of nest provisioning behavior in solitary bees (Hymenoptera: Apoidea)
The components of nest provisioning behavior (resources per cell, transport capacity, trip duration, trips per cell) are examined for a data set derived from the literature and various unpublishedExpand
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Flowers and Wild Megachilid Bees Share Microbes
Transmission pathways have fundamental influence on microbial symbiont persistence and evolution. For example, the core gut microbiome of honey bees is transmitted socially and via hive surfaces, butExpand
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Predicted fates of ground-nesting bees in soil heated by wildfire: Thermal tolerances of life stages and a survey of nesting depths
Abstract Periodic wildfire defines plant community composition and dynamics in many of the world’s semi-arid biomes, whose climates and floras also favor wild bee diversity. Invasive flammableExpand
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Natural land cover drives pollinator abundance and richness, leading to reductions in pollen limitation in cotton agroecosystems
Abstract Cotton is the most economically and culturally important fiber crop worldwide. Though cotton may potentially benefit from animal mediated pollination, it is unknown if the species is indeedExpand
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Multiple origins of the yucca-yucca moth association.
The association of species of yucca and their pollinating moths is considered one of the two classic cases of obligate mutualism between floral hosts and their pollinators. The system involves theExpand
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NESTMATE RELATEDNESS IN A COMMUNAL BEE, PERDITA TEXANA (HYMENOPTERA: ANDRENIDAE), BASED ON DNA FINGERPRINTING
Perdita texana is a facultatively communal bee species with up to 28 females per nest. We used multilocus DNA fingerprinting to test the hypothesis that nestmates are more closely related to eachExpand
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