MORPHOLOGICAL CONSTRAINTS AND NECTAR ROBBING IN THREE ANDEAN BUMBLE BEE SPECIES (HYMENOPTERA, APIDAE, BOMBINI)
<div>We report differences in foraging behavior of three Andean bumblebee species on</div><div>flowers of Digitalis purpurea (Scrophulariaceae). Bombus atratus was a potential</div><div>pollinator while B. hortulanus and B. rubicundus collected nectar by robbing through...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional de Colombia
2006-06-01
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| Series: | Caldasia |
| Online Access: | http://www.revistas.unal.edu.co/index.php/cal/article/view/39273 |
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| Summary: | <div>We report differences in foraging behavior of three Andean bumblebee species on</div><div>flowers of Digitalis purpurea (Scrophulariaceae). Bombus atratus was a potential</div><div>pollinator while B. hortulanus and B. rubicundus collected nectar by robbing through</div><div>holes. We attribute behavioral differences to physical constraints. B. atratus has a</div><div>longer glossa and a larger body size and is able to reach the nectaries, whereas B.</div><div>hortulanus and B. rubicundus have shorter glossae and smaller bodies and probably</div><div>must rob nectar through holes at the base of flowers.</div> |
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| ISSN: | 0366-5232 |