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引用次数: 0
摘要
摘要对灰皮甲虫Hylesinus fraxini (Panzer 1779)的生物学特性进行了研究。研究地区是捷克共和国中波希米亚地区的Jílové u Prahy。2014年2月,三棵普通白蜡树被砍伐,随后从3月开始观察到白蜡树侵染。从20根去皮原木中收集甲虫,在体视显微镜下解剖,并确定了它们的性别。五根有树皮甲虫的原木被放置在光折衷器中。收集出现的甲虫,并将其与新鲜的白蜡木一起放入第二个光收集器中,以确定它们是否会建立第二代。分析表明,每一对树皮甲虫的画廊系统中都有一只雄性和一只雌性。若在廊系中发现1只成虫,通常为雌成虫。因此,在波西米亚中部地区,不可能存在多配偶制。雌虫廊长与产卵数显著相关。后代甲虫没有建立第二代,因为只有成熟的摄食发生在新鲜的木材中。
Contribution to bionomy of Hylesinus fraxini (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic
Abstract This study focused on bionomics of the ash bark beetle Hylesinus fraxini (Panzer 1779). The study area was at Jílové u Prahy in the Central Bohemian Region of the Czech Republic. In February 2014, three common ash (Fraxinus excelsior) trees were felled and Hylesinus fraxini infestation was subsequently observed from March. Beetles were collected from 20 debarked logs and dissected under stereomicroscope, and their sex was determined. Five logs with bark beetles were placed into photoeclectors. Beetles that emerged were collected and put into the second photoeclector with fresh ash wood to determine whether they would establish the second generation. The analysis showed that each gallery system with a pair of bark beetles contained one male with only one female. If one adult of H. fraxini was found in the gallery system, it was usually female. Therefore, possible polygamy of Hylesinus fraxini was not confirmed in Central Bohemia. Maternal gallery length significantly correlated with the number of eggs laid per female. Offspring beetles did not establish the second generation, as only maturation feeding occurred in fresh wood.
期刊介绍:
Central European Forestry Journal (published as Lesnícky Èasopis - Forestry Journal until 2016) publishes novel science originating from research in forestry and related braches. Central European Forestry Journal is a professional peer-reviewed scientific journal published 4-time a year. The journal contains original papers and review papers of basic and applied research from all fields of forestry and related disciplines. The editorial office accepts the manuscripts within the focus of the journal exclusively in English language. The journal does not have article processing charges (APCs) nor article submission charges. Central European Forestry Journal, abbreviation: Cent. Eur. For. J., publishes original papers and review papers of basic and applied research from all fields of forestry and related scientific areas. The journal focuses on forestry issues relevant for Europe, primarily Central European regions. Original works and review papers can be submitted only in English language.