Distributed under Creative Commons Cc-by 4.0 Specialization on Pollen or Nectar in Bumblebee Foragers Is Not Associated with Ovary Size, Lipid Reserves or Sensory Tuning
Distributed under Creative Commons Cc-by 4.0 Specialization on Pollen or Nectar in Bumblebee Foragers Is Not Associated with Ovary Size, Lipid Reserves or Sensory Tuning
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根据 Creative Commons Cc-by 4.0 分发，关于大黄蜂采集者的花粉或花蜜的专业化与卵巢大小、脂质储备或感官调节无关
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通讯作者：
W. Hughes
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作者：
Adam R. Smith;P. Graystock;W. Hughes
觅食专业化使社会性昆虫能够更有效地利用环境中的资源。最近对蜜蜂的研究表明，觅食蜜蜂对花粉或花蜜的专门化与生殖生理学和感官调节有关（生殖地面计划假说; RGPH）。然而，我们对非蜜蜂的潜在生理关系的理解仍然有限。在这里，我们表明，熊蜂terrestris有专门的花粉和花蜜觅食，并测试是否觅食专业化B。terrestris与生殖生理学有关，以卵巢激活为衡量标准。我们发现，无论是卵巢大小，感官灵敏度，测量通过长鼻延伸反应（PER），或全身脂质储存花粉觅食，花蜜觅食，或通才觅食之间的差异。这三组觅食动物的体型也没有差异。非觅食者的卵巢明显大于觅食者。这表明，潜在的生殖个体避免觅食。
Foraging specialization allows social insects to more efficiently exploit resources in their environment. Recent research on honeybees suggests that specialization on pollen or nectar among foragers is linked to reproductive physiology and sensory tuning (the Reproductive Ground-Plan Hypothesis; RGPH). However, our understanding of the underlying physiological relationships in non-Apis bees is still limited. Here we show that the bumblebee Bombus terrestris has specialist pollen and nectar foragers, and test whether foraging specialization in B. terrestris is linked to reproductive physiology, measured as ovarian activation. We show that neither ovary size, sensory sensitivity, measured through proboscis extension response (PER), or whole-body lipid stores differed between pollen foragers, nectar foragers, or generalist foragers. Body size also did not differ between any of these three forager groups. Non-foragers had significantly larger ovaries than foragers. This suggests that potentially reproductive individuals avoid foraging.