Climate-induced seasonal activity and flight period of cerambycid beetles in the Zselic forests, Hungary

Abstract

Keszthelyi S., Pónya Z., Pál-Fám F. (2017): Climate-induced seasonal activity and flight period of cerambycid beetles in the Zselic forests, Hungary. J. For. Sci., 63: 503-510.The longhorn beetle fauna (Coleoptera: Cerambycidae) was studied in the Zselic region (Somogy county) in Hungary in seven consecutive years (2009)(2010)(2011)(2012)(2013)(2014)(2015). In total 2,931 specimens were observed and the presence of 83 species was identified during the sampling period. The most abundant species were: Plagionotus arcuatus (Linnaeus, 1758) (p i = 10.542); Cerambyx scopoli Füssli, 1775 (p i = 8.359), Dorcadion aethiops (Scopoli, 1763) (p i = 6.653) and Strangalia melanura (Redtenbacher, 1867) (p i = 6.209). According to our examinations, individual meteorological factors, particularly temperature, directly influenced the dispersal and the activity of longhorn beetles (P = 0.038) as well as the species richness (P = 0.047), as did weather systems formation and movement of air masses, cold and warm fronts. It is also shown that the activity of the insects is influenced by daily weather conditions. The activity of arthropods was higher during warm, dry days and less pronounced during cold, wet ones coupled with high air pressure values. A conspicuous relationship was observable between the appearance of cerambycid beetles and their time period. According to the results of Principal Coordinate Analysis four major groups can be distinguished: early-flight, late spring-flight, summer-flight and late-flight species.

Identification of Pheromone Components of Plagionotus detritus (Coleoptera: Cerambycidae), and Attraction of Conspecifics, Competitors, and Natural Enemies to the Pheromone Blend

“…), with larvae developing in the wood and under the bark of branches and trunks of recently dead or cut trees [37]. Plagionotus arcuatus occasionally is considered a pest because it can damage fresh oak wood stored outdoors [14,38]. However, P. arcuatus catches showed no clear tendencies (Figure 4B), although racemic 3-C6 was tested, which includes (R)-3-hydroxyhexan-2-one, the major pheromone component of P. arcuatus [21].…”

“…MS (minor stereoisomer) (rel. intensity) m/z: 184 (1), 129 (2), 101 (1), 99 (2), 85 (100), 71 (4), 67 (10), 57 (14), 55 (9), 43 (25), 41 (18).…”

“…However, P. detritus remains a common saproxylic beetle in Central Europe, including Poland [6,7] and Hungary [3,8], in Southern Europe in Italy [9], Eastern Europe in Romania [3,10], Ukraine [11,12], and Russia [13]. The species has occasionally been designated as a pest because it can damage recently cut oak wood that is stored outdoors [14] and it is more abundant in semi-natural forests than in intensively managed forests [9]. Larvae develop in deciduous trees, especially in dead, dry (fallen or standing) trunks or thick branches of oaks (Quercus spp.…”

Identification of the aggregation-sex pheromone of Plagionotus arcuatus ssp. arcuatus (Coleoptera: Cerambycidae) from two geographically separated European populations

“…), with larvae developing in the wood and under the bark of branches and trunks of recently dead or cut trees (Bílý and Mehl 1989). The species has occasionally been designated as a pest because it can damage recently cut oak wood stored outdoors (Ehnström and Axelsson 2002;Keszthelyi et al 2017). The subspecies studied in this work is the nominate subspecies (henceforth referred to simply as P. arcuatus), but five other subspecies have been described from Asia and southeastern Europe (Greece and Turkey) (Danilevsky 2018).…”