|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >
Foraging responses of bumble bees to rewardless floral patches: importance of within-plant variance in nectar presentation
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Foraging responses of bumble bees to rewardless floral patches: importance of within-plant variance in nectar presentation |
| Authors: | Nakamura, Shoko Browse this author | | Kudo, Gaku Browse this author →KAKEN DB |
| Keywords: | Aconites | | bumble bees | | geitonogamy | | plant distribution | | pollination | | rewardless | | variation in nectar secretion |
| Issue Date: | 16-Feb-2018 |
| Publisher: | Oxford University Press |
| Journal Title: | AoB plants |
| Volume: | 8 |
| Start Page: | plw037 |
| Publisher DOI: | 10.1093/aobpla/plw037 |
| Abstract: | Spatiotemporal variation in nectar distribution is a key factor affecting pollinator movements between flowers and plants within a population. Pollinators having systematic searching ability can flexibly respond to the reward condition of floral patches, and they tend to revisit rewarding patches. However, foraging behaviour may be influenced by the nectar distribution within populations. To evaluate the effects of unrewarding experiences and plant distribution, we compared bumble bee foraging behaviours between naturally rewarding and artificially rewardless (by nectary removal) patches in two aconite populations with different plant densities. Visitation frequency to the patches, number of successive flower visits within inflorescences, and successive inflorescence visits within patches were recorded. Nectar production and standing crop were also measured. Bumble bees increased the movements between neighbouring inflorescences instead of leaving the patches when they faced rewardless flowers. A large variance in nectar production existed among flowers within plants. This might explain the observed bumble bee behaviour, because they could be rewarded by moving to the adjacent inflorescences even after a rewardless experience. Our results imply that a highly variable nectar reward in a population might mask the disadvantage of completely rewardless individuals. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/68324 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 工藤 岳
|
