1 00:00:01,920 --> 00:00:06,560 Speaker 1: Welcome to brain Stuff, a production of iHeart Radio. Hey 2 00:00:06,600 --> 00:00:10,840 Speaker 1: brain Stuff, Lauren bog Obam Here. Bees are not doing 3 00:00:10,880 --> 00:00:14,400 Speaker 1: well since the mid two thousand's colony collapse disorder has 4 00:00:14,400 --> 00:00:17,400 Speaker 1: been taking out the world's most famous plant pollinator all 5 00:00:17,440 --> 00:00:20,919 Speaker 1: over the world. Bees pollinate one third of the plants 6 00:00:20,920 --> 00:00:24,200 Speaker 1: we eat, from oranges to almonds, a service worth some 7 00:00:24,320 --> 00:00:26,720 Speaker 1: a hundred and sixty eight billion dollars a year, by 8 00:00:26,720 --> 00:00:30,760 Speaker 1: the way, and their rapid disappearance is worrying farmers worldwide. 9 00:00:32,200 --> 00:00:35,479 Speaker 1: But what if there's a secret army of pollinators sneaking 10 00:00:35,479 --> 00:00:38,559 Speaker 1: around the plants we rely on most It could be 11 00:00:38,680 --> 00:00:41,720 Speaker 1: good news for our food security, or it could be 12 00:00:41,760 --> 00:00:44,760 Speaker 1: a neutral factor if these insects are susceptible to the 13 00:00:44,800 --> 00:00:48,960 Speaker 1: same or similar pressures as bees. A study published in 14 00:00:49,000 --> 00:00:52,120 Speaker 1: May of twenty and the journal Biology Letters has found 15 00:00:52,200 --> 00:00:55,240 Speaker 1: that moths play a much bigger part in pollinating plants 16 00:00:55,280 --> 00:00:59,320 Speaker 1: than anybody imagined, possibly visiting a bigger variety of plant 17 00:00:59,360 --> 00:01:02,720 Speaker 1: species than bees and doing it under the cover of darkness. 18 00:01:04,280 --> 00:01:08,480 Speaker 1: Scientists didn't just realize overnight that moths pollinate plants. The 19 00:01:08,560 --> 00:01:11,039 Speaker 1: problem was much of the research was limited to a 20 00:01:11,040 --> 00:01:14,400 Speaker 1: few specific types of moths, that obviously spend a lot 21 00:01:14,440 --> 00:01:17,960 Speaker 1: of their time rooting around in flowers, like hawk moths, 22 00:01:18,160 --> 00:01:22,479 Speaker 1: which have extraordinarily long tongues like fourteen inches that's thirty 23 00:01:22,520 --> 00:01:25,920 Speaker 1: six centimeters long, used for getting it hard to reach 24 00:01:25,959 --> 00:01:29,959 Speaker 1: nectar reserves within a flower. However, over the last decade, 25 00:01:30,000 --> 00:01:33,600 Speaker 1: investigations into how moths as a group contribute to the 26 00:01:33,680 --> 00:01:37,520 Speaker 1: process of pollination found that your average moth tongue can 27 00:01:37,640 --> 00:01:41,039 Speaker 1: be a really effective tool for moving pollen from plant 28 00:01:41,080 --> 00:01:45,040 Speaker 1: to plant. This knowledge led the studies authors to turn 29 00:01:45,080 --> 00:01:48,640 Speaker 1: an eye to the rarely studied settling moths, which sit 30 00:01:48,760 --> 00:01:51,680 Speaker 1: low and close to flowers and hide out in sheltered 31 00:01:51,720 --> 00:01:55,720 Speaker 1: spots during the day. We spoke by email with these 32 00:01:55,720 --> 00:01:59,440 Speaker 1: studies lead author Richard Walton of the University College London 33 00:01:59,520 --> 00:02:03,680 Speaker 1: Department of Geography. He said, our research has for the 34 00:02:03,720 --> 00:02:07,400 Speaker 1: first time compared moth pollination networks with those of day 35 00:02:07,440 --> 00:02:10,519 Speaker 1: flying pollinators such as bees and hover flies, to help 36 00:02:10,600 --> 00:02:14,480 Speaker 1: us understand and illustrate the wide ranging plant preferences we 37 00:02:14,520 --> 00:02:18,800 Speaker 1: discovered moths to have in an agricultural setting. We also 38 00:02:18,840 --> 00:02:21,640 Speaker 1: found that malls were carrying most pollen from the flowers 39 00:02:21,680 --> 00:02:25,160 Speaker 1: they visited on their furry bodies, which means the means 40 00:02:25,200 --> 00:02:28,359 Speaker 1: of pollen transport from flower to flower by moths is 41 00:02:28,480 --> 00:02:31,360 Speaker 1: very similar to bees and hover flies, which also transport 42 00:02:31,400 --> 00:02:35,959 Speaker 1: most of the pollen on their bodies. Many social bees, 43 00:02:36,000 --> 00:02:38,799 Speaker 1: like bumble bees and honey bees, visit lots of different 44 00:02:38,800 --> 00:02:42,120 Speaker 1: types of flowers, but they also tend to target certain 45 00:02:42,200 --> 00:02:45,040 Speaker 1: favorite plants that they know will provide plenty of their 46 00:02:45,080 --> 00:02:48,440 Speaker 1: favorite kinds of pollen and nectar. As a result, some 47 00:02:48,480 --> 00:02:52,919 Speaker 1: plant species get less be attention than others. Walton said, 48 00:02:53,360 --> 00:02:57,280 Speaker 1: Solitary bees can often be more specialized visiting one type 49 00:02:57,280 --> 00:03:00,200 Speaker 1: of plant, while hover flies often visit flowers with a 50 00:03:00,240 --> 00:03:04,160 Speaker 1: certain shape. We found that moths visit many different species 51 00:03:04,200 --> 00:03:06,760 Speaker 1: of plant with a few different types of flower shape. 52 00:03:07,360 --> 00:03:10,880 Speaker 1: If daytime pollinators do not visit a particular plant species often, 53 00:03:11,000 --> 00:03:14,799 Speaker 1: but moth species do, and this results in pollination, this 54 00:03:14,960 --> 00:03:20,320 Speaker 1: increases the chance that this plant would survive for another generation. So, 55 00:03:20,680 --> 00:03:23,920 Speaker 1: because moths are a bit less picky than daytime pollinators 56 00:03:23,960 --> 00:03:27,440 Speaker 1: but still get the pollination job done, plants not preferred 57 00:03:27,440 --> 00:03:31,639 Speaker 1: by bees persist. Maintaining a diverse population of plants is 58 00:03:31,760 --> 00:03:35,320 Speaker 1: essential to maintaining a stable and resilient ecosystem. That can 59 00:03:35,560 --> 00:03:40,280 Speaker 1: weather threats like climate change or urbanization. Conversely, with plenty 60 00:03:40,280 --> 00:03:43,520 Speaker 1: of plants to feed on, moths themselves can continue being 61 00:03:43,560 --> 00:03:46,880 Speaker 1: an important food source for birds, bats, and other insects. 62 00:03:48,360 --> 00:03:51,720 Speaker 1: The research team observed and collected daytime pollinators as well 63 00:03:51,760 --> 00:03:55,040 Speaker 1: as nocturnal moths around farm ponds in the United Kingdom 64 00:03:55,400 --> 00:03:58,840 Speaker 1: and found moth food webs were often comparable to those 65 00:03:58,880 --> 00:04:03,160 Speaker 1: of daytime pollinators in complexity, and in some instances had 66 00:04:03,200 --> 00:04:08,119 Speaker 1: greater complexity. Walton said moths are likely providing a kind 67 00:04:08,120 --> 00:04:11,000 Speaker 1: of resilience or back up to the food webs of 68 00:04:11,040 --> 00:04:14,880 Speaker 1: daytime pollinators. If a certain species or number of species 69 00:04:14,920 --> 00:04:18,640 Speaker 1: of bee or butterfly disappears from the landscape, moths could 70 00:04:18,720 --> 00:04:23,080 Speaker 1: potentially fill in that pollination gap. Taking this a step further, 71 00:04:23,440 --> 00:04:27,520 Speaker 1: it's also significant because moth populations are facing severe declines 72 00:04:27,560 --> 00:04:30,680 Speaker 1: across the globe. As we realize that they are important 73 00:04:30,720 --> 00:04:34,440 Speaker 1: contributors to the pollination process, it becomes even more important 74 00:04:34,520 --> 00:04:37,799 Speaker 1: to protect moth populations because we might be placing ourselves 75 00:04:37,839 --> 00:04:42,599 Speaker 1: at risk. The researchers found moths were visiting plants belonging 76 00:04:42,600 --> 00:04:45,239 Speaker 1: to families that are important to humans as a source 77 00:04:45,240 --> 00:04:49,880 Speaker 1: of foods, like apples, strawberries, pears, peaches, beans, and peas. 78 00:04:50,720 --> 00:04:54,880 Speaker 1: Walton said this has exciting implications for moths being involved 79 00:04:54,880 --> 00:04:57,680 Speaker 1: in crop pollination. It would help us to move past 80 00:04:57,760 --> 00:05:01,400 Speaker 1: seeing moths as merely pests, but it's important contributors to 81 00:05:01,440 --> 00:05:09,640 Speaker 1: our own livelihoods. Today's episode was written by Jesselyn Shields 82 00:05:09,680 --> 00:05:12,080 Speaker 1: and produced by Tyler Clay. For more and listen lots 83 00:05:12,080 --> 00:05:15,000 Speaker 1: of other topics, visit how stuffworks dot com. Brain Stuff 84 00:05:15,040 --> 00:05:17,279 Speaker 1: is production of i Heeart Radio. For more podcasts my 85 00:05:17,320 --> 00:05:20,080 Speaker 1: heart Radio, visit the iHeart Radio app, Apple Podcasts, or 86 00:05:20,120 --> 00:05:21,760 Speaker 1: wherever you listen to your favorite shows,