Crowdsourced online images provide insights into predator-prey interactions of putative natural enemies
Crowdsourced online images provide insights into predator-prey interactions of putative natural enemies
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DOI：
10.1016/j.fooweb.2019.e00126
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发表时间：
2019-12-01
期刊：
影响因子：
1.7
通讯作者：
Weirauch, Christiane
中科院分区：
文献类型：
--
作者：
Hernandez, Madison;Masonick, Paul;Weirauch, Christiane
大多数种类繁多的Glades昆虫都是食草动物，但有几个大的辐射区几乎完全由食肉动物组成。它们的物种数量使得对捕食者-猎物相互作用的全面直接观察很难获得。公民科学方法越来越多地用于收集包括昆虫在内的生物体的生态数据。我们利用记录食虫（半翅目：Reduviidae）捕食者-猎物相互作用的众包图像(1)确定按地理区域和reduviid亚科组装的在线图像的分解；(2)评估积累的图像是否为猎物多样性提供了新的见解；(3)评估以害虫物种、传粉者为食并从事野外捕食的分类群的证据。收集照片（n = 832），形成包含11个亚科代表的图像数据库；大多数记录属于昼夜活动的Harpactorinae和Phymatinae，但也记录了一些对猎物多样性知之甚少的亚科。具有大量图像表征猎物的分类群（21-242个捕食事件）与文献报道的猎物有显著重叠。Apiomerus Hahn和Pliyinuta Latreille的高比例图像记录了本地和非本地蜜蜂的捕食事件；不同种类间的百分比差异很大。据文献记载，灰蝶会捕食几种害虫，但很少有证据表明它们捕食传粉媒介。这些天敌对传粉者和野生捕食者的潜在影响应进一步研究，为了解影响群落结构和生态系统过程的机制提供重要见解。(C) 2019 Elsevier Inc.版权所有。
Most megadiverse Glades of insects are herbivores, but several large radiations consist almost entirely of predators. Their species numbers make comprehensive direct observations of predator-prey interactions difficult to obtain. Citizen science approaches are increasingly utilized to harvest ecological data for organisms including insects. We use crowdsourced images documenting predator-prey interactions of assassin bugs (Hemiptera: Reduviidae), a speciose Glade of predatory insects, to (1) determine the breakdown of assembled online images by geographic region and reduviid subfamily; (2) evaluate if the accumulated images provide new insights into prey diversity; and (3) assess evidence for taxa that feed on pest species, pollinators, and engage in intraguild predation. Photographs were assembled (n = 832) and resulted in an image database that included representatives of 11 subfamilies; most records belonged to diurnal Harpactorinae and Phymatinae, but some subfamilies with poorly understood prey diversity were also documented. Taxa with substantial image representation of prey (21-242 predation events) showed significant overlap with prey reported in the literature. A high percentage of images for Apiomerus Hahn and Pliyinuta Latreille documented predation events on native and non-native bees; percentages varied widely among species of Zelus Fabricius. Adieu cristatus (Linnaeus) was documented to prey on several pest species, with little evidence for pollinator predation. Potential effects of these natural enemies on pollinators and intraguild predators should be further investigated, providing important insights into mechanisms influencing community structure and ecosystems processes. (C) 2019 Elsevier Inc. All rights reserved.