Entomological Science最新文献_第2页

Seed dispersal by ants in Aristolochia kaempferi var. laevipes (Aristolochiaceae), a woody vine in Japan 日本木本藤本植物马兜铃科植物种子的蚂蚁传播

IF 0.8 4区农林科学

Entomological Science Pub Date : 2026-07-09 DOI: 10.1111/ens.70030

Kana Watanabe-Toma, Tetsuo Ohi-Toma

{"title":"Seed dispersal by ants in Aristolochia kaempferi var. laevipes (Aristolochiaceae), a woody vine in Japan","authors":"Kana Watanabe-Toma, Tetsuo Ohi-Toma","doi":"10.1111/ens.70030","DOIUrl":"https://doi.org/10.1111/ens.70030","url":null,"abstract":"In Japan, myrmecochory has been observed in at least 41 genera across 28 angiosperm families. However, ants have never been reported to transport seeds away directly from fruits located more than 1 m above the ground. In 2024, during an observation of vespicochory in Aristolochia kaempferi var. kaempferi, we documented a seed-dispersal behavior by a Formica ant that climbed the vine and transported a seed directly from a dehiscent capsule at a height of approximately 5 m. Although this was only observed once, it suggests that the seeds of A. kaempferi and its relatives might be actively dispersed by ants as well as vespid wasps. In this study, we observed dehisced capsules of A. kaempferi var. laevipes hanging approximately 1.5 m above the ground, along with the surrounding forest floor. Arboreal ants, Crematogaster matsumurai and semi-ground-dwelling ants, Camponotus obscuripes, removed seeds from the capsule and transported them. Seeds that fell to the ground were transported to the nest by other ant species, such as Aphaenogaster japonica and Formica japonica. These findings suggest that ant-mediated seed dispersal in A. kaempferi involves both primary myrmecochory, in which ants transport seeds directly from elevated capsules, and diplochory, where ants act as secondary dispersers for seeds that fall by gravity or are occasionally dropped by vespid wasps and other ants.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"29 3","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoding chemical profiles in insect-induced gall development: Insights from Phacopteron lentiginosum–Garuga pinnata interactions 解码昆虫诱导的胆囊发育的化学特征：来自小绒斑蝶与小绒斑蝶相互作用的见解

IF 0.8 4区农林科学

Entomological Science Pub Date : 2026-07-06 DOI: 10.1111/ens.70024

V. K. Bobika, M. Nasser, K. S. Shameer

{"title":"Decoding chemical profiles in insect-induced gall development: Insights from Phacopteron lentiginosum–Garuga pinnata interactions","authors":"V. K. Bobika, M. Nasser, K. S. Shameer","doi":"10.1111/ens.70024","DOIUrl":"https://doi.org/10.1111/ens.70024","url":null,"abstract":"Galls are specialized plant structures derived from the interactions between plants and gall-inducing insects. Infestation by the gall inducers stimulates the production of both volatile and nonvolatile metabolites including volatile organic compounds (VOCs), which function as important mediators of chemical communication between the plant, the gall inducer and associated organisms. The present study was aimed at characterizing the extractable volatile and nonvolatile metabolites across the three developmental stages (3rd, 4th and 5th instar nymphal stages) of leaf galls induced by Phacopteron lentiginosum Buckton (Hemiptera: Phacopteronidae) on Garuga pinnata Roxb. (Burseraceae), in comparison with ungalled leaves (control). The extracts of three developmental stages of galls and ungalled leaves were analyzed using Gas Chromatography-coupled-Mass Spectrometry. Forty-two compounds were identified across all samples, of which 38 compounds were detected exclusively in gall tissues. The chemical composition varied significantly among developmental stages: the 3rd stage exhibited the highest chemical diversity and concentration followed by 4th and 5th instars. The identified compounds are associated with cuticular wax formation, plant defense responses and semio-chemical signaling, suggesting functional roles in gall nutrition and potential interactions with parasitoids. These findings demonstrate stage-specific metabolic profiles during gall development. Future studies integrating early gall developmental stages, transcriptomics and behavioral assays will further elucidate the molecular and ecological mechanisms governing plant–insect gall interactions.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"29 3","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.70024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Minimal impact of anthropogenic genetic disturbance on the endangered butterfly Luehdorfia japonica (Lepidoptera: Papilionidae) within the Kanto Mountains, Japan 人为遗传干扰对关东山区濒危蝴蝶（鳞翅目：蝶科）的影响

IF 0.9 4区农林科学

Entomological Science Pub Date : 2026-06-14 DOI: 10.1111/ens.70028

Naoyuki Nakahama, Kyouhei Watanabe, Gohta Kinoshita, Shouhei Ueda, Norio Hirai, Minoru Ishii, Masaya Yago

{"title":"Minimal impact of anthropogenic genetic disturbance on the endangered butterfly Luehdorfia japonica (Lepidoptera: Papilionidae) within the Kanto Mountains, Japan","authors":"Naoyuki Nakahama, Kyouhei Watanabe, Gohta Kinoshita, Shouhei Ueda, Norio Hirai, Minoru Ishii, Masaya Yago","doi":"10.1111/ens.70028","DOIUrl":"https://doi.org/10.1111/ens.70028","url":null,"abstract":"Genetic disturbance represents a critical threat to species conservation by eroding evolutionary history and compromising population fitness. A geographically isolated population of Luehdorfia japonica (Lepidoptera: Papilionidae) resides on Mt. Ishizare within the Kanto Mountains of Kanagawa Prefecture, Japan. Historical documentation of butterfly releases suggested a risk of genetic disturbance within this population. This study utilized genome-wide single-nucleotide polymorphism (SNP) analysis of 67 individuals using 581 SNPs to quantify the extent of genetic disturbance. While the results showed genetic disturbance had occurred, the proportion of exotic genetic clusters was remarkably low, ranging from 1.6% to 2.4%. Thus, the impact of genetic disturbance at Mt. Ishizare, Kanagawa Prefecture, was found to be slight. These findings indicated that the risk of genetically disturbed individuals migrating to neighboring areas where individuals have become established is also low. Consequently, the conservation value of the Mt. Ishizare population remains substantially intact, warranting continued protection of this unique evolutionary lineage.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"29 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 0.9 4区农林科学

Entomological Science Pub Date : 2026-05-27

引用次数: 0

IF 0.9 4区农林科学

Entomological Science Pub Date : 2026-05-27

引用次数: 0

IF 0.9 4区农林科学

Entomological Science Pub Date : 2026-05-10

引用次数: 0

IF 0.9 4区农林科学

Entomological Science Pub Date : 2026-05-06