木瓜,亚洲织工蚂蚁,是油棕种植园(Elaeisguineensis)的潜在捕食者之一,对于入侵的袋鼠来说,但是这种蚂蚁是一种令人讨厌的物种,它的尖锐叮咬会刺激种植园工人。在这里,我们评估了O.Smaragdina的主要工人的觅食活动(FA),识别其不活跃的时间和监督的存在,社会性昆虫的新颖性。在2018年至2022年之间,树干觅食活动的模式被用作缓解措施。干线FA与气温(AT)的关系,相对湿度(RH),空气压力(AP),并对降雨截留(RI)进行了调查。我们的研究结果表明,O.Smaragdina是严格的昼夜蚂蚁物种,几乎没有黄昏活动,在黑暗中停止觅食.此外,资深大工人通过监控踪迹系统地充当主管,拦截,并在热高峰期间带回较小的个体。关于人口规模相对丰度,所有菌落在每日最温暖的时期表现出更大的强度,在较大的菌落中平均觅食密度更高,无论干雨间隔如何,从后期到早期光相的活动都对应于最小的活动,并显示出双峰模式。因此,觅食活动在1100-1530h和1745-1845h之间达到峰值,在1620至1650小时之间,强度平均每天突然下降两倍,这是部分截止期(第一份报告)。此外,觅食活动,AT,AP呈显著正相关,RH呈负相关。最后,我们从基础棕榈树干上发现,防御性领土层平均延伸到5m,具有不同的空间配置,表明前2m内的觅食密度更大。我们的研究显示O.Smaragdina每日低活动期,在1000小时之前,最适合避免觅食者攻击,以促进修剪和收获任务。
Oecophylla smaragdina F., the Asian weaver ant, is one of the oil palm plantation\'s (Elaeis guineensis) potential predators, for the invasive bagworm species Metisa plana Walker, but this ant is a nuisance species that irritates plantation workers with their sharp bites. Here we assess the foraging activities (FA) of O. smaragdina\'s major workers, identify its inactive times and the existence of supervision, a novelty for social insects. Between 2018 and 2022, the pattern of trunk foraging activity was used as a mitigation measure. The relationship between trunk FA and air temperature (AT), relative humidity (RH), air pressure (AP), and rainfall interception (RI) was also investigated. Our results showed that, O. smaragdina is a strictly diurnal ant species, has little to no crepuscular activity, and stopped foraging during darkness. Moreover, veteran bigger workers systematically acted as supervisors by monitoring trails, intercepting, and bringing back to nests smaller individuals during heat peaks. In relation to population size relative abundance, all colonies displayed greater intensity during the warmest daily periods with higher mean forager density among the bigger colony, regardless of the dry-rainy intervals corresponded to minimal activity from late scotophase to early photophase and showed a bimodal pattern. Thus, forager activity peaked between 1100-1530 h and 1745-1845 h, and an average two-fold daily sudden decrease in intensity between 1620 and 1650 h as a partial cut-off period (first report). Furthermore, foraging activity, AT, AP showed a significant positive correlation while RH was negative. Finally, we found that from the base palm trunks, defensive territorial layers extended to 5 m on average with different spatial configurations indicating greater foraging density within the first 2 m. Our study shows O. smaragdina daily low activity periods, before 1000 h, being the most suitable to avoid forager attacks to facilitate pruning and harvesting tasks.