Pollen analogues are transported across greater distances in bee‐pollinated than in hummingbird‐pollinated species of Justicia (Acanthaceae)
Pollen analogues are transported across greater distances in bee‐pollinated than in hummingbird‐pollinated species of Justicia (Acanthaceae)
复制标题
与蜂鸟授粉的Justicia（棘科）物种相比，蜜蜂授粉的花粉类似物传播的距离更远
作者：
A. Schmidt‐Lebuhn;Matthias Müller;Paola Pozo Inofuentes;Francisco Encinas Viso;M. Kessler
与昆虫传粉的植物谱系相比，一些蜂鸟传粉的植物谱系显示出更高的多样化率。有人认为，这种模式是由蜂鸟和植物的高度专业化造成的。我们在这里测试了另一种假设：通常具有高度领土性的蜂鸟携带花粉的距离平均可能比其他传粉者短，并通过减少基因流动距离来推动多样化。我们提出了花粉模拟追踪的实验数据，表明在10种新热带刺科植物中，蜂鸟传粉的传播距离比蜜蜂传粉的传播距离短。
Several hummingbird‐pollinated plant lineages have been demonstrated to show increased rates of diversification compared to related insect‐pollinated lineages. It has been argued that this pattern is produced by a higher degree of specialization on part of both hummingbirds and plants. We here test an alternative hypothesis: The often highly territorial hummingbirds may on average carry pollen over shorter distances than other pollinators and drive diversification by reducing gene flow distances. We present experimental data from pollen analogue tracking showing shorter dispersal distances in hummingbird‐pollinated than in bee‐pollinated species among ten Neotropical species of Justicia (Acanthaceae).