Abstract
A survey of data from tropical and temperate regions confirms that nectars of hummingbird and honeyeater flowers are dilute, especially relative to nectars of bee flowers. These data are used, along with theoretical considerations, to examine three recently proposed hypotheses to explain low concentration of hummingbird nectars. None of the quantitative or qualitative predictions of these hypotheses appears to be upheld. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 260-270 |
| Number of pages | 11 |
| Journal | Biotropica |
| Volume | 13 |
| Issue number | 4 |
| Publication status | Published - 1981 |
| Externally published | Yes |