Population Genetic Structure of Orthotomicus Erosus (Wollaston, 1857) (Coleoptera: Curculionidae, Scolytinae) in Pine Forests of the Mediterranean Region of Turkey

Sarikaya, Oğuzhan

doi:10.15666/aeer/1504_915928

Cited by 7 publications

(13 citation statements)

References 20 publications

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“…In high population levels this species can attack healthy trees and cause their dieback [14]. Severe outbreaks occur after dry periods, or after fire in adjoining stands in warmer parts of the Mediterranean region [15,16].…”

Section: Outbreak Of Orthotomicus Erosus (Coleoptera Curculionidae) mentioning

confidence: 99%

Outbreak of Orthotomicus erosus (Coleoptera, Curculionidae) on Aleppo Pine in the Mediterranean Region in Croatia

Pernek

Lacković

Lukić

et al. 2019

SEEFOR

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Background and Purpose: Orthotomicus erosus, Mediterranean pine engraver, is widely distributed across the Mediterranean and southern Europe, Asia and North Africa. It is considered as secondary pest found on recently dead or felled trees, but can also attack weakened living trees. In high population levels this species can attack healthy trees and cause their dieback. Severe outbreaks occur after dry periods, or after fire in adjoining stands in warmer parts of the Mediterranean region, while this scenario has never happened in Croatia up to now. Bark beetles are important forest pests which have already been researched and discussed in relation to climate change, indicating that the predicted increase in temperature would lead to higher survival rates and faster development, thus directly influencing their population dynamics. Increase in temperature may stimulate changes in insects’ rate of development, voltinism, population density, size, genetic composition, extent of host plant exploitation, longitudinal and latitudinal distribution. Since climate conditions might have changed in the last few years as predicted in the Mediterranean region, the aim of our research is to document the first outbreak with high population levels of O. erosus in Croatia. Materials and Methods: The extent of dieback was evaluated by counting trees with dieback symptoms on diagonal transects plotted through each of 33 forest management sections of Marjan Forest Park (Split). Trunk sections from several trees with early stage symptoms were collected for further laboratory analysis, which consisted of incubation phase and subsequent morphological identification. During regular yearly surveys in forests of Croatia, the pest was observed on several sites and damages were recorded for both years 2017 and 2018. The records were entered into a map using QGIS version 3.2.1-Bonn. Spatial data was downloaded from DIVA-GIS server. Monitoring efforts were initiated in affected areas where 13 flight barrier pheromone traps (Theyson®) equipped with pheromone lure Erosowit® (Witasek, Austria) were set-up in late March in state-owned and privately owned forests across Dalmatia. Catches in the traps were collected and O. erosus adults were counted on a weekly basis in order to identify the abundance of the pest in monitored sites, as well as to obtain the first information about population dynamics and to assess voltinism. Results: On-site survey and the evaluation of dieback extent included sampling of 5% of all trees in Marjan Forest Park ,and the results showed that 23% of all trees in the forest park were affected by dieback symptoms. Visual examination of trunks, branches and bark showed symptoms of bark beetle infestation, while preliminary on-site examination of the observed adults pointed out to O. erosus. After two weeks in controlled conditions, bark beetle adults started to emerge from trunk sections which were placed in several mesh cages for incubation. Morphological identification by using stereomicroscope and the key for European bark beetles resulted in identification of O. erosus species. Over the course of the year 2017 one more site was reported to be infested with O. erosus, and eight additional sites were reported over the course of year 2018. In total, 446 ha were reported as infested, varying in intensity, in several different management units of state-owned and privately owned forests. The total number of trapped beetles in pheromone traps varied largely among sites. Our data indicate that several generations (at least 5 generations per year) were present in the year 2018. Conclusions: Sudden surge in observed damages, as well as the number of beetles trapped during monitoring, in years 2017 and 2018 throughout Aleppo pine forests in Dalmatia are the first record of O. erosus outbreak in Croatia. O. erosus is native to Croatia and so far it has been considered only as a minor pest whose outbreaks have never been recorded. Drought intensity and frequency and aridification trends in the research area (Dalmatia, Croatia) cause cumulative stress to trees and have increased O. erosus occurrence. O. erosus is expected to exhibit increased voltinism, better overwintering performance and earlier spring flights. Our first results confirm this epidemic stage of O. erosus with high abundances in Dalmatia in 2018 and at least 5 generations per year, which alter the population level of this pest. Finally, with high dispersal abilities of O. erosus through active flight and easy transportation with infested material (logs and branches with bark), O. erosus has the potential to become an important forest pest in Croatia. Thus, extensive studies on its biology, ecology, natural enemies and interaction with ophiostomatoid fungal species are needed in order to predict further spread and suggest viable and effective management measures.

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Section: Outbreak Of Orthotomicus Erosus (Coleoptera Curculionidae) mentioning

confidence: 99%

Outbreak of Orthotomicus erosus (Coleoptera, Curculionidae) on Aleppo Pine in the Mediterranean Region in Croatia

Pernek

Lacković

Lukić

et al. 2019

SEEFOR

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“…According to the current results, the presence probability of O. erosus increased at altitudes 500 m to 1600 m. Taylor et al (2006) confirmed that outbreaks of bark beetle occurred at Journal of Insect Biodiversity and Systematics 2023  9 (4) altitudes 800-1400 m in British Columbia. Similarly, Avci and Sarikaya (2009) observed the highest presence probability of O. tridentatus at altitudes of 1300 to 1785 m. In addition, Sarikaya et al (2013) observed the highest number of O. erosus beetles per trap in the Menderes-Catalca site located at a higher elevation (850 m) compared to five other sampling sites in Turkey (elevation 120-650 m). Despite the direct effect of altitude, it should be noted that the elevation variable can indirectly affect pest dispersal through temperature change or drought, especially in summer (Marini et al, 2012;Cerrato et al, 2016).…”

Section: Discussionmentioning

confidence: 72%

Maximum entropy modelling to predict the impact of abiotic variables on the potential distribution of Orthotomicus erosus (Wollaston) (Coleoptera, Curculionidae, Scolytinae)

Ghorbanian,

Karimi-Malati,

Jalaeian

et al. 2023

J. Insect Biodivers. Syst

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Risk assessment is utilized to prioritize preventive measures based on the probability of dispersal success of pests. A main part of the risk assessment procedure is to determine the effects of environmental variables on the current and potential geographical distributions. In the present study, the spatial distribution of the Mediterranean pine engraver, Orthotomicus erosus (Wollaston), was mapped and predicted using MaxEnt. Presence records of O. erosus (north, northeast, west and centre of Iran), environmental and topographic variables, with the lowest correlations among themselves and the highest effects on the pest distribution were used. A total of 76 presence records of O. erosus were collected. The results of the distribution prediction modelling revealed that the northern part of Iran and the areas along the Zagros are the most suitable habitats for this species. Examining environmental variable importance on the distribution of O. erosus showed that the variables related to temperature and precipitation had more contribution in the MaxEnt model, respectively than the altitude. Furthermore, the high accuracy of the model (0.928) indicated that the MaxEnt had an acceptable performance for the prediction of O. erosus distribution. These findings would provide primary and critical information about the potential distribution of O. erosus in Iran, which could be effective for the stable population regulation of this destructive pest.

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“…Orthotomicus erosus is considered a secondary pest of recently fallen, windthrown, or fire-injured trees (Mendel and Halperin, 1982;Mendel, 1983;Arias et al, 2005;Lieutier and Paine, 2016;Sarıkaya and Şen, 2017). Although extensive damage to Turkish pine (P. brutia) and Aleppo pine (P. halapensis) has been reported in its natural distribution area of Israel and Iran (Mendel, 1983), these beetles can feed and reproduce in a broad range of coniferous species found in Mediterranean and Aegean coastal regions.…”

Section: Mediterranean Pine Engraver Orthotomicus Erosus (Wollaston 1...mentioning

confidence: 99%

“…Less suitable hosts, in which development (Mendel and Halperin, 1982;Gil Sanchéz and Pajares Alonso, 1986;Wood and Bright, 1992;Arias et al, 2005;Walter et al, 2009;Sarıkaya et al, 2013;Pernek et al, 2019). The wide host range of this species and its high mobility (Sarıkaya and Şen, 2017), together with the invasions promoted by international timber transportation (Brockerhoff et al, 2006a;Haack, 2006), have resulted in this species' recent massive spread into new environments (Sarıkaya et al, 2013;Pernek et al, 2019).…”

Section: Mediterranean Pine Engraver Orthotomicus Erosus (Wollaston 1...mentioning

confidence: 99%

Cambioxylophagous Pests of Scots Pine: Ecological Physiology of European Populations—A Review

Hlávková

Doležal²

2022

Front. For. Glob. Change

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Climatic extremes have been gathering momentum since the 1880s and are believed to be a long-term factor increasing the mortality of Scots pine trees, Pinus sylvestris (L.) in Europe. Weather monitoring over the past 120 years shows that, in Central Europe, surface air temperatures grow at a rate of 0.18°C per decade. Many changes due to these abiotic stressors are already visible in the forests’ canopy and biodiversity. But the influence of the rise in temperature and in precipitation deficiency brings one more player into this die-back scheme. Bark beetles, and their increasing outbreaks, are further agents acting to accelerate and expand the impacts of weather on trees. While P. sylvestris react to abiotic stressors by decreasing functions of the hydraulic system, mainly the defense system, for bark beetles, warming is a profitable condition. Various bionomy processes are modified: vegetation seasons prolong, larval growth and development rates accelerate, reproductive potential rises, and overwintering success increases. Thus, the insect populations grow, and the infestation pressure on weakened hosts intensifies. Finally, even species of small ecologic importance can cause extensive losses of forest cover. Furthermore, international trade and intercontinental transportation support the potential threat of spreading forest pests far away from their original geographic range. Together with climatic amelioration, pests may adapt to new conditions, establish new prosperous populations, disperse rapidly, and cause prodigious losses. However, detailed information about cambioxylophagous pests on P. sylvestris in Central Europe is still missing. The purpose of our review is to map the bionomy and behavior of six bark beetle species—in particular, the sharp-dentated bark beetle, Ips acuminatus (Gyllenhal, 1827), the six-toothed bark beetle, Ips sexdentatus (Börner, 1767), the common pine shoot beetle, Tomicus piniperda (Linnaeus, 1758), the lesser pine shoot beetle, Tomicus minor (Hartig, 1834), the pine shoot beetle, Tomicus destruens (Wollaston, 1865), the Mediterranean pine engraver, Orthotomicus erosus (Wollaston, 1857) (Coleoptera: Curculionidae: Scolytinae), and the steel-blue jewel beetle, Phaenops cyanea (Fabricius, 1775) (Coleoptera: Buprestidae)—on P. sylvestris in Central Europe, to compare and summarize the available data on European populations, and to try to propose ideas and directions for future research.

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Population Genetic Structure of Orthotomicus Erosus (Wollaston, 1857) (Coleoptera: Curculionidae, Scolytinae) in Pine Forests of the Mediterranean Region of Turkey

Cited by 7 publications

References 20 publications

Outbreak of Orthotomicus erosus (Coleoptera, Curculionidae) on Aleppo Pine in the Mediterranean Region in Croatia

Outbreak of Orthotomicus erosus (Coleoptera, Curculionidae) on Aleppo Pine in the Mediterranean Region in Croatia

Maximum entropy modelling to predict the impact of abiotic variables on the potential distribution of Orthotomicus erosus (Wollaston) (Coleoptera, Curculionidae, Scolytinae)

Cambioxylophagous Pests of Scots Pine: Ecological Physiology of European Populations—A Review

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