Foraging ability of rufous hummingbirds on hummingbird flowers and hawkmoth flowers.
We examine the suitability of ornithophilous flowers and sphingophilous flowers in Ipompsis and Aquilegia for nectar foraging by the hummingbird Selasphorus rufus. In S. rufus, bill length averages 18.9 mm in females and 17.3 mm in males. Maximal tongue extension approximates bill length, suggesting...
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| Veröffentlicht in: | Proc Natl Acad Sci U S A |
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| Hauptverfasser: | , |
| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
National Academy of Sciences
1992
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| Schlagworte: | |
| Online-Zugang: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC50139/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/11607331/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.89.20.9400 |
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