Putting a New Spin on the Flight of Jabillo Seeds
Putting a New Spin on the Flight of Jabillo Seeds
复制标题
贾比洛种子的飞行焕然一新
DOI：
10.1093/icb/icaa117
复制
发表时间：
2020
影响因子：
2.6
通讯作者：
Whitaker, Dwight L
中科院分区：
文献类型：
--
作者：
Ribera, Jesse;Desai, Aman;Whitaker, Dwight L
我们的文章描述了爆炸性种子传播的胡拉crepitansfruit。通过对爆炸水果的高速视频分析，我们观察到种子以下旋飞行，而不是先前假设的上旋。下旋定向种子，以尽量减少飞行过程中的阻力，从而增加传播距离。本文用纤毛Ruellia ciliatiflora种子的结果估算了种子的扩散距离，其形状与H.捻发音我们注意到，降低阻力对散布距离的影响在更高的速度下更明显。我们还看到，发射高度对种子传播距离的影响变得不那么重要，在较高的发射速度。我们的结论是，增加扩散距离，由于飞行与下旋应提高健身殖民新的栖息地或逃避疾病或捕食和种子传播机制的比较，在大戟科和菊科的物种可能有助于揭示这种行为的适应意义。
Our article describes the explosive seed dispersal of theHura crepitansfruit. Through high-speed video analysis of an exploding fruit, we observe that the seeds fly with backspin as opposed to topspin, which was previously assumed. Backspin orients seeds to minimize drag during flight and consequently increases dispersal distance. The seeds’ dispersal distance is estimated by using results from the seeds ofRuellia ciliatiflora, which are similarly shaped but ∼10 times smaller than those ofH. crepitans. We note that the effects of lowering drag on the dispersal distance are more pronounced at higher speeds. We also see that the effect of launch height on the dispersal distance of the seeds becomes less consequential at higher launch speeds. We conclude that the increased dispersal distance due to flying with backspin should improve fitness in colonizing new habitats or escaping disease or predation and that comparisons of the seed dispersal mechanisms across species within the Euphorbiaceae and Acanthaceae might help reveal the adaptive significance of this behavior.