当前位置：
X-MOL 学术
›
Entomol. Exp. Appl.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ecology of Oobius rudnevi, egg parasitoid of Cerambyx cerdo and Cerambyx welensii in oak forests
Entomologia Experimentalis et Applicata ( IF 1.4 ) Pub Date : 2021-04-18 , DOI: 10.1111/eea.13059 Luis M. Torres‐Vila 1 , Rafael López‐Calvo 1 , Álvaro Sánchez‐González 1 , F. Javier Mendiola‐Díaz 1
Entomologia Experimentalis et Applicata ( IF 1.4 ) Pub Date : 2021-04-18 , DOI: 10.1111/eea.13059 Luis M. Torres‐Vila 1 , Rafael López‐Calvo 1 , Álvaro Sánchez‐González 1 , F. Javier Mendiola‐Díaz 1
Affiliation
|
Oobius rudnevi (Nowicki) (Hymenoptera: Encyrtidae) is a gregarious egg parasitoid of Cerambyx cerdo L. and Cerambyx welensii (Küster) (Coleoptera: Cerambycidae), two well-known large oak-living saproxylic beetles with different pest/legal status: whereas C. cerdo is a protected species, C. welensii is considered an emerging pest. Despite the potential interest of O. rudnevi as a native parasitoid, the knowledge of its biology remains very limited. We used sentinel eggs to assess the distribution of O. rudnevi in Extremadura (southwest Spain) and to explore its ecology, phenology, behavior, parasitism rates, and host preference. More than 13 500 sentinel eggs, housed in 1 030 wood disks, were field-exposed during 2016–2018 in 147 oak stands over an array of oak forests. Oobius rudnevi was the only egg parasitoid detected, being widespread and relatively abundant over the studied area (90/147 stands, 61.2%) with adults flying in May–July. Parasitoids were detected in both host species, but net parasitism (PN) was significantly higher in C. cerdo (22.4%) than in C. welensii (9.5%). Net parasitism was affected by altitude (it was higher at 600–800 m) and tended to increase in colder aspects; PN was poorly related to host egg density (no. eggs per disk) and unrelated to host population size (no. adults per trap). Most parasitoids overwintered and emerged in the following spring (synchronously with their hosts) but some phenotypes/lineages did not undergo obligate diapause and were bivoltine. Bivoltine wasps were spatially widespread (27/90 stands, 30%), even if their actual prevalence was rather low (60/1641 parasitized eggs, 3.7%). We also found that O. rudnevi was slightly protogynous, the sex ratio was female-biased, and the mean (± SEM) number of wasps emerging per parasitized egg was 9.3 ± 0.1 (range 1–29). We discuss the potential role of O. rudnevi as a biological control agent from an evolutionary perspective.
中文翻译：
Oobius rudnevi, 橡树林中 Cerambyx cerdo 和 Cerambyx welensii 卵寄生物的生态
Oobius rudnevi (Nowicki) (膜翅目：Encyrtidae) 是Cerambyx cerdo L. 和Cerambyx welensii (Küster)（鞘翅目：Cerambycidae）的一种群居卵寄生蜂，这两种著名的大型橡树生活腐木甲虫具有不同的害虫/合法地位：C. cerdo是受保护物种，C. welensii被认为是一种新兴害虫。尽管O. rudnevi作为本地寄生蜂具有潜在的兴趣，但对其生物学的了解仍然非常有限。我们使用哨兵卵来评估O. rudnevi的分布在埃斯特雷马杜拉（西班牙西南部）并探索其生态、物候、行为、寄生率和宿主偏好。2016-2018 年间，超过 13500 个哨兵卵被放置在 1030 个木盘中，在一系列橡树林中的 147 个橡木林中进行了野外暴露。Oobius rudnevi是唯一检测到的卵寄生物，在研究区域（90/147 个林分，61.2%）分布广泛且相对丰富，成虫在 5 月至 7 月飞行。在两种宿主物种中均检测到拟寄生物，但C. cerdo (22.4%) 中的净寄生 (P N ) 显着高于C. welensii (9.5%)。净寄生受海拔高度影响（600-800 m较高），在寒冷地区有增加的趋势；P ñ与寄主卵密度（每个圆盘的卵数）无关，与寄主种群大小（每个诱捕器的成虫数）无关。大多数寄生蜂越冬并在第二年春天出现（与它们的宿主同步），但一些表型/谱系没有经历专性滞育并且是双生的。Bivoltine 黄蜂在空间上分布广泛（27/90 群，30%），即使它们的实际流行率相当低（60/1641 寄生卵，3.7%）。我们还发现O. rudnevi略微原始，性别比例偏向女性，每个寄生卵出现的黄蜂平均 (± SEM) 数量为 9.3 ± 0.1（范围 1-29）。我们从进化的角度讨论了O. rudnevi作为生物控制剂的潜在作用。
更新日期：2021-06-09
中文翻译：
Oobius rudnevi, 橡树林中 Cerambyx cerdo 和 Cerambyx welensii 卵寄生物的生态
Oobius rudnevi (Nowicki) (膜翅目：Encyrtidae) 是Cerambyx cerdo L. 和Cerambyx welensii (Küster)（鞘翅目：Cerambycidae）的一种群居卵寄生蜂，这两种著名的大型橡树生活腐木甲虫具有不同的害虫/合法地位：C. cerdo是受保护物种，C. welensii被认为是一种新兴害虫。尽管O. rudnevi作为本地寄生蜂具有潜在的兴趣，但对其生物学的了解仍然非常有限。我们使用哨兵卵来评估O. rudnevi的分布在埃斯特雷马杜拉（西班牙西南部）并探索其生态、物候、行为、寄生率和宿主偏好。2016-2018 年间，超过 13500 个哨兵卵被放置在 1030 个木盘中，在一系列橡树林中的 147 个橡木林中进行了野外暴露。Oobius rudnevi是唯一检测到的卵寄生物，在研究区域（90/147 个林分，61.2%）分布广泛且相对丰富，成虫在 5 月至 7 月飞行。在两种宿主物种中均检测到拟寄生物，但C. cerdo (22.4%) 中的净寄生 (P N ) 显着高于C. welensii (9.5%)。净寄生受海拔高度影响（600-800 m较高），在寒冷地区有增加的趋势；P ñ与寄主卵密度（每个圆盘的卵数）无关，与寄主种群大小（每个诱捕器的成虫数）无关。大多数寄生蜂越冬并在第二年春天出现（与它们的宿主同步），但一些表型/谱系没有经历专性滞育并且是双生的。Bivoltine 黄蜂在空间上分布广泛（27/90 群，30%），即使它们的实际流行率相当低（60/1641 寄生卵，3.7%）。我们还发现O. rudnevi略微原始，性别比例偏向女性，每个寄生卵出现的黄蜂平均 (± SEM) 数量为 9.3 ± 0.1（范围 1-29）。我们从进化的角度讨论了O. rudnevi作为生物控制剂的潜在作用。
京公网安备 11010802027423号