Colour as a backup for scent in the presence of olfactory noise: testing the efficacy backup hypothesis using bumblebees (Bombus terrestris).
Colour as a backup for scent in the presence of olfactory noise: testing the efficacy backup hypothesis using bumblebees (Bombus terrestris).
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DOI：
10.1098/rsos.170996
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发表时间：
2017-11
影响因子：
3.5
通讯作者：
Rands SA
中科院分区：
文献类型：
--
作者：
Lawson DA;Whitney HM;Rands SA
大多数花卉展示同时广播来自多种感官模式的信号，但这些多模式展示既会消耗代谢成本，也会增加花卉拮抗物的显着性。那么为什么工厂要投资这些昂贵的多模式显示器呢？功效备份假说表明，在环境变化的情况下，单个信号成分可以作为其他信号成分的备份。在这里，我们通过研究大黄蜂在存在化学干扰或高风速的情况下区分多组人造花的能力来测试功效备份假设，这两种情况都有可能阻碍嗅觉信号的传递。我们发现化学干扰和高风速都会对采集者的学习时间产生负面影响，但这些影响在视觉信号成分的存在下得到了缓解。我们的结果表明，在存在化学干扰和高风速的情况下，视觉信号可以作为嗅觉信号的备份，并支持功效备份假说作为多模式花卉展示进化的解释。
The majority of floral displays simultaneously broadcast signals from multiple sensory modalities, but these multimodal displays come at both a metabolic cost and an increased conspicuousness to floral antagonists. Why then do plants invest in these costly multimodal displays? The efficacy backup hypothesis suggests that individual signal components act as a backup for others in the presence of environmental variability. Here, we test the efficacy backup hypothesis by investigating the ability of bumblebees to differentiate between sets of artificial flowers in the presence of either chemical interference or high wind speeds, both of which have the potential to impede the transmission of olfactory signals. We found that both chemical interference and high wind speeds negatively affected forager learning times, but these effects were mitigated in the presence of a visual signal component. Our results suggest that visual signals can act as a backup for olfactory signals in the presence of chemical interference and high wind speeds, and support the efficacy backup hypothesis as an explanation for the evolution of multimodal floral displays.
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影响因子：
2.7
作者：
GALEN, C;GREGORY, T
通讯作者：
GREGORY, T
影响因子：
2.2
作者：
Daly, KC;Durtschi, ML;Smith, BH
通讯作者：
Smith, BH
DOI：
10.1073/pnas.85.1.156
发表时间：
1988-01-01
影响因子：
11.1
作者：
GENTRY, AH
通讯作者：
GENTRY, AH
影响因子：
1.3
作者：
FREE J B
通讯作者：
FREE J B
影响因子：
6.5
作者：
BAKER, HG
通讯作者：
BAKER, HG