Wang Xiangping, Fu Xiao, Shi Miaomiao, Xue Chunquan, Yang Jiazhi, Zhao Zhongtao, Li Shijin, Tu Tieyao
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, The Chinese Academy of Sciences, Guangzhou, Guangdong, China.
South China National Botanical Garden, Guangzhou, China.
Integr Zool. 2024 Jul;19(4):763-776. doi: 10.1111/1749-4877.12745. Epub 2023 Jul 10.
Plant-Lepidoptera interactions are often studied using the pollination or herbivore networks only. Lepidoptera species are involved in two types of plant-insect interactions because they are herbivores as larvae and pollinators as adults. The study of entangled networks is critical, since the interaction of different networks can affect the overall network and community stability. Here, we studied the interaction of plants and Lepidoptera on the Yongxing Island, South China Sea. A plant-lepidopteran pollination network and a plant-lepidopteran herbivore network were built by using data from flower-pollinator and leaf-herbivore interactions. We then combined the two networks into a single network. We measured plant composition similarity within each sub-network and across sub-networks for Lepidoptera species. Our findings indicate that the plant-Lepidoptera pollination network and the herbivory network share significant proportions of Lepidoptera but small proportions of plant assemblages. The pollination network had higher nestedness and connectance than the herbivore network. Agrius convolvuli was the most specialized species, while Zizina otis had the highest species strength in the pollination network. Most Lepidoptera species were highly specialized in the herbivore network and their importance positively correlated across the two networks. Furthermore, there was no dietary composition similarity between the two networks for most Lepidoptera species. Our findings highlight the visible structural difference between the pollination and the herbivore networks. Adult Lepidoptera selects different plants for oviposition and feeding, a strategy that may benefit their reproduction and survival by sustaining adequate resources for their two life stages and the diversity of both plants and insects in oceanic island communities.
植物与鳞翅目昆虫的相互作用通常仅通过传粉或植食性网络进行研究。鳞翅目昆虫参与两种类型的植物 - 昆虫相互作用，因为它们幼虫期是植食性动物，成虫期是传粉者。对纠缠网络的研究至关重要，因为不同网络之间的相互作用会影响整个网络和群落的稳定性。在此，我们研究了中国南海永兴岛上植物与鳞翅目的相互作用。利用花 - 传粉者和叶 - 植食者相互作用的数据构建了一个植物 - 鳞翅目传粉网络和一个植物 - 鳞翅目植食性网络。然后我们将这两个网络合并为一个单一网络。我们测量了每个子网络内以及跨子网络的鳞翅目物种的植物组成相似性。我们的研究结果表明，植物 - 鳞翅目传粉网络和植食性网络共享相当比例的鳞翅目昆虫，但共享的植物组合比例较小。传粉网络比植食性网络具有更高的嵌套性和连通性。甘薯天蛾是最特化的物种，而酢浆灰蝶在传粉网络中具有最高的物种强度。大多数鳞翅目物种在植食性网络中高度特化，并且它们在两个网络中的重要性呈正相关。此外，大多数鳞翅目物种在两个网络之间没有饮食组成相似性。我们的研究结果突出了传粉网络和植食性网络之间明显的结构差异。成年鳞翅目昆虫选择不同的植物进行产卵和取食，这种策略可能通过为其两个生命阶段维持充足的资源以及海洋岛屿群落中植物和昆虫的多样性来有利于它们的繁殖和生存。
