Three years in the dark: life-history traits of amphibiotic stonefly, Alloperla Ishikariana (Plecoptera, Chloloperlidae)
Three years in the dark: life-history traits of amphibiotic stonefly, Alloperla Ishikariana (Plecoptera, Chloloperlidae)
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黑暗中的三年：两栖石蝇的生活史特征，Alloperla Ishikariana（Plecoptera，Chloloperlidae）
DOI：
10.1007/s10750-022-04976-9
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发表时间：
2022
期刊：
影响因子：
2.6
通讯作者：
K Tojo
中科院分区：
文献类型：
--
作者：
Junjiro Negishi;MK Alam;MATMT Rahman;R Kawanishi;Hiromi Uno;G Yoshinari;K Tojo
人们对河流潜流带昆虫物种的生态学知之甚少，尽管它对了解物种如何在专门的栖息地生存很重要。本文报道了日本北部砾石河底栖石蝇Allopla ishikarianaKohno，1953(目：翼翅目，科：绿蝇科)的生活史和营养特性。成虫在5~8月羽化，幼虫种群结构由3个大小的种群组成，个体大小具有一定的性别二型性，平均增长速度为0.0043 mg/d。基于碳和氮稳定同位素比率的饮食分析表明，个体发育的饮食变化很小。相比之下，冬季对寡毛类的依赖程度更高，对摇蚊的依赖程度更高，春季和初夏对摇蚊的依赖程度更高。其他昆虫分类群，即白粉虫科和小型鳞毛虫，对下层带表现出高度到中等的亲和力。成虫寿命为7-10天，幼虫期在黑暗中，寿命约为3年。
Little is known about the ecology of insect species in the hyporheic zone of rivers, despite its importance in understanding how species survive in specialized habitats. We report on the life history and trophic characteristics of the hyporheic stonefly speciesAlloperla ishikarianaKohno, 1953 (Order: Plecoptera, Family: Chloroperlidae) in a gravel-bed river in northern Japan, using year-round sampling of both benthic and hyporheic larvae, as well as flying adults in the riparian zone. Adults emerged between May and August, and the larval cohort structure consisted of three sized groups with some sex dimorphism in their body size, with an average growth rate of 0.0043 mg/day. Diet analyses based on C and N stable isotope ratios indicated minimal ontogenetic diet shifts. In contrast, the temporal diet shift was more apparent with higher dependence on Oligochaeta in winter, with an increasing dependence on Chironomidae in spring and early summer. Other insect taxa, namely, Leuctridae and small-sizedLepidostoma, demonstrated a high to moderate affinity for the hyporheic zone.Alloperla ishikarianaspent most of its larval stage in the hyporheic zone. With adults living from 7 to 10 days,A. ishikarianacompletes a life span of approximately 3 years with its larval stage in the dark.