太陽鳥 伯斯國家植物園針墊花上的一只雄性南方雙領太陽鳥 隨著“國家傳粉媒介周”今天開始，您可能會問自己，為什么美國參議院決議正式將整個一周專門用于蜜蜂，鳥類，蝙蝠，甲蟲和其他花粉在植物之間移動的生物。沒錯，在午餐時間您的眼睛變紅并且Allegra似乎不會起作用的日子里，您可能不會想到花粉的世界。但是，以超越竇道清晰度的方式，沒有授粉者，您的世界將不一樣，他們要感謝在美國吃掉的食物中多達三分之一。 “傳粉媒介周”旨在強調威脅傳粉媒介動物，特別是已經在減少的蜜蜂種群的問題，例如氣候變化，污染和入侵物種。今天我們要介紹的授粉媒介（雄性雙領太陽鳥）正掛在火箭枕形花上，這不僅是為了補充他時髦的氛圍，而且還因為它的午餐是亮橙色的花朵。太陽鳥花蜜喂食器家族從南非的這里延伸到整個歐洲溫暖的地區(qū)。太陽鳥與美洲的蜂鳥無關，但兩個羽毛家族的相似的，花香豐富的棲息地使它們處于相似的進化路徑上，這種現(xiàn)象被稱為“會聚進化”，成為其生態(tài)系統(tǒng)中的關鍵傳粉媒介。

英語原文:

As National Pollinator Week kicks off today, you might ask yourself why a US Senate resolution would officially dedicate a whole week to bees, birds, bats, beetles, and other critters that move pollen from plant to plant. True, on days when your eyes are rubbed red by lunchtime and the Allegra won't seem to kick in, you might not think the world of pollen. But in ways that transcend sinus clarity, your world wouldn't be the same without pollinators—they're to thank for as many as one in three bites of food eaten in the US. Pollinator Week is meant to highlight problems—like climate change, pollution, and invasive species—that threaten pollinator animals, especially bee populations that are already declining.The pollinator we're featuring today—a male double-collared sunbird—is hanging out on a rocket pincushion flower not only to complement his groovy vibe, but also because the bright-orange bloom is providing his lunch. The sunbird family of nectar-feeders extends from here in South Africa throughout warmer parts of Europe. Sunbirds are unrelated to the Americas' hummingbirds, but the two feathered families' similar, florally rich habitats set them on similar evolutionary paths—a phenomenon called convergent evolution—to become key pollinators in their ecosystems.

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