Kim Chang-Jun, Choi Moon Bo
Division of Forest Biodiversity, Korea National Arboretum, Pocheon 11186, Korea.
School of Applied Biosciences, College of Agriculture & Life Sciences, Kyungpook National University, Daegu 41566, Korea.
Insects. 2021 Mar 29;12(4):296. doi: 10.3390/insects12040296.
Yellow-throated martens (YTMs) are omnivores that often prey on wasps in late autumn in Korea. However, to the best of our knowledge, predation of the invasive alien species (VVN) has not previously been investigated. In this study, YTM feces were collected and analyzed from Mt. Onggangsan, Sinwon-ri, Cheongdo, South Korea, where VVN density was high and YTMs were active. Surveys were conducted three times between October and December 2019, during which a total of 22 samples were collected. Debris from VVN was found in three samples, along with evidence of two indigenous wasps, and . The VVN remains were identified as one queen, four males, one female, and one individual whose caste was unclear. Martens prey on wasps, owing to a sudden decrease in plant food sources from late autumn to early winter, mostly eating males and new queens attempting to mate. If VVN reproduction is prevented or disturbed by YTM predation, there may be potential biological control effects in areas with high VVN density. Further studies should be conducted to verify whether there is a practical biological control effect.
黄喉貂是杂食动物，在韩国，它们常在深秋捕食黄蜂。然而，据我们所知，此前尚未对其捕食入侵外来物种（VVN）的情况进行过调查。在本研究中，从韩国庆尚南道淸道郡新云里翁冈山采集并分析了黄喉貂粪便，该地区VVN密度高且有黄喉貂活动。2019年10月至12月期间进行了三次调查，共采集了22个样本。在三个样本中发现了VVN的残骸，同时还有两种本土黄蜂的踪迹。鉴定出VVN残骸包括一只蚁后、四只雄蚁、一只雌蚁以及一只种姓不明的个体。由于从深秋到初冬植物性食物来源突然减少，貂会捕食黄蜂，主要捕食雄蜂和试图交配的新蚁后。如果黄喉貂的捕食能够阻止或干扰VVN的繁殖，那么在VVN密度高的地区可能会产生潜在的生物防治效果。应进一步开展研究以验证是否存在实际的生物防治效果。
