Phylogeography of Monochamus galloprovincialis, the European vector of the pinewood nematode

Haran, Julien; Rousselet, Jérôme; Téllez, David; Roques, Alain; Roux, Géraldine

doi:10.1007/s10340-017-0878-4

Cited by 15 publications

(8 citation statements)

References 50 publications

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“…Mantel tests and a commonality analysis supported the hypothesis that elevated areas and their associated colder temperatures constitute barriers to gene flow for M. galloprovincialis . This result corroborates the observations made for the congeneric species M. alternatus across the Ohu chain of mountains in Japan ( Shoda-Kagaya, 2007 ) and on M. galloprovincialis across the Pyrenees ( Haran et al, 2015 ; Haran et al, 2017 ). In addition, this hypothesis tends to be confirmed by several studies showing that M. galloprovincialis larva development and survival ( Naves & De Sousa, 2009 ), and its ability to complete its development within one or two years ( Tomminen, 1993 ; Naves et al, 2007 ; Koutroumpa et al, 2008 ), are affected by low temperatures.…”

Section: Discussionsupporting

confidence: 91%

“…To model resistance based on pine density, we considered the sum of densities of all pine species encountered in a grid cell, because in the Iberian Peninsula, M. galloprovincialis shows no preference for pine species. As shown in previous studies, this beetle will live in the dead wood of any of the pine species considered in this study ( Pinus pinaster, P. nigra, P. sylvestris, P. halepensis and P. radiata ; Naves, Sousa & Quartau, 2006 ; Haran et al, 2015 ; Haran et al, 2017 ). Resistance to dispersal was also modeled as a function of the mean minimum temperature (and its proxy: elevation, hereafter called scenarios T and E respectively), as low summer temperatures tend to inhibit adult flying activity ( Hernández et al, 2011 ), and because low winter temperatures are likely to determine the survival or the development rate of M. galloprovincialis larval instars ( Naves, Sousa & Quartau, 2006 ).…”

Section: Methodsmentioning

confidence: 63%

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Multi-scale and multi-site resampling of a study area in spatial genetics: implications for flying insect species

Haran

Rossi

Pajares

et al. 2017

PeerJ

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The use of multiple sampling areas in landscape genetic analysis has been recognized as a useful way of generalizing the patterns of environmental effects on organism gene flow. It reduces the variability in inference which can be substantially affected by the scale of the study area and its geographic location. However, empirical landscape genetic studies rarely consider multiple sampling areas due to the sampling effort required. In this study, we explored the effects of environmental features on the gene flow of a flying long-horned beetle (Monochamus galloprovincialis) using a landscape genetics approach. To account for the unknown scale of gene flow and the multiple local confounding effects of evolutionary history and landscape changes on inference, we developed a way of resampling study areas on multiple scales and in multiple locations (sliding windows) in a single large-scale sampling design. Landscape analyses were conducted in 3*104 study areas ranging in scale from 220 to 1,000 km and spread over 132 locations on the Iberian Peninsula. The resampling approach made it possible to identify the features affecting the gene flow of this species but also showed high variability in inference among the scales and the locations tested, independent of the variation in environmental features. This method provides an opportunity to explore the effects of environmental features on organism gene flow on the whole and reach conclusions about general landscape effects on their dispersal, while limiting the sampling effort to a reasonable level.

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Section: Discussionsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 63%

Multi-scale and multi-site resampling of a study area in spatial genetics: implications for flying insect species

Haran

Rossi

Pajares

et al. 2017

PeerJ

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“…The study of the intraspecific diversity within the genus Monochamus is still largely in progress. For example, a recent work by Haran et al (2017) using polymorphic microsatellites and samples from 45 European locations has shown that five distinct populations of M. galloprovincialis exist in Europe. On the other hand, this study did not find any support to validate the distinction between two subspecies made so far in Europe (e.g.…”

Section: Intraspecific Diversitymentioning

confidence: 99%

Pest categorisation of non‐EU Monochamus spp.

Bragard¹,

Dehnen‐Schmutz²,

Serio³

et al. 2018

EFS2

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The Panel on Plant Health performed a pest categorisation of non‐EU Scolytinae (Coleoptera: Curculionidae) of coniferous hosts (hereafter NESC). NESC occur worldwide, and some species are important forest pests. Species can be identified using taxonomic keys and molecular methods. Most NESC species (bark beetles) live in the inner bark of their hosts (phloem and cambium), while the remaining species mostly colonise the sapwood (ambrosia beetles). Bark‐ and ambrosia beetles are often associated with symbiotic fungi, which behave as pathogens towards the host trees, or are used as food by ambrosia beetle larvae. The larvae live in individual tunnels or in communal chambers. Pupation occurs in the wood or in the bark. Some species are semi‐ or multivoltine, others are monovoltine. Some species attack and kill living, apparently healthy trees. Other species specialise in weakened, dying or dead trees. The pathways for entry are cut branches, cones, round wood with or without bark, sawn wood with or without bark, wood packaging material, bark, manufactured wood items and wood chips and plants for planting (including seeds) of conifers. Availability of host plants and suitable climate would allow the establishment in the EU of NESC. Measures are in place to prevent their introduction through the pathways described above. NESC satisfy all the criteria to be considered as Union quarantine pests. As NESC are not present in the EU and plants for planting are not their major pathway for spread, they do not meet the criteria to be considered as regulated non‐quarantine pests.

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“…Healthy and slightly weakened trees can decline because of maturation feeding of some stem insects, particularly Tomicus piniperda (Linnaeus, 1758), Tomicus minor (Hartig, 1834) and Monochamus galloprovincialis (Olivier, 1795) (Meshkova and Nazarenko 2009;Meshkova et al 2017), and because of their ability to vector the pathogens (Davydenko et al 2014(Davydenko et al , 2017, particularly pinewood nematode, Bursaphelenchus xylophilus (Steiner & Buhrer, 1934) (Nickle 1970;Haran et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Health Condition and Colonization of Stem Insects in Scots Pine after Ground Fire in Central Polissya

Andreieva

Zhytova

Martynchuk

2018

Folia Forestalia Polonica

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Over the past decades, the increase in occurrence of fires has caused degradation of the forest ecosystem and caused impacts to the environment. The aim of this study was to reveal the peculiarities of Scots pine health condition dynamics in the first 2 years after August fire and to estimate the rate of tree colonisation by stem insects in Central Polissya. Scots pine health condition for the first 2 years after summer ground fire in August 2016 and the rate of tree colonisation by stem insects was studied in Zhytomyr region, Western Ukraine. Stem scorch height was measured for every fire-damaged tree, and the index of fire damage severity was calculated. Vital trees health condition worsened more intensively in the sample plot with the lowest relative stocking density and the highest stem scorch by fire. Generally, the forest health condition has worsened in post-fire period in fire damaged stands. However, 23.1% of trees recovered health condition from category ‘drying-up’ to ‘severely weakened’. In fire-damaged stands, the number of species of stem insects has increased from 8 to 11 during the first 2 years of fire damage. Bark beetles were represented by Tomicus piniperda (Linnaeus, 1758), Tomicus minor (Hartig, 1834), Ips acuminatus (Gyllenhal, 1827) and Ips sexdentatus (Boerner, 1767). Jewel beetles included Anthaxia quadripunctata (Linnaeus, 1758), Phaenops cyaneus (Fabricius, 1775), Melanophila acuminata (DeGeer, 1774) and Chalcophora mariana (Linnaeus, 1758). Longhorn beetles included Monochamus galloprovincialis (Olivier, 1795), Pogonocherus fasciculatus (Degeer, 1775) and Acanthocinus aedilis (Linnaeus, 1758). Tree colonisation by stem insects in the year of fire damage was comparable with control stand, because insect swarming completed before this disturbance. Maximal occurrence of stem insects in 2017 in fire-damaged stand increased up to 66.7% (for I. sexdentatus). The percentage of trees colonised by any insect species at fire-damaged and healthy pine stands differed significantly. The occurrence of stem insects depended mainly on the ratio of trees with different health condition. Our results demonstrate data of tree damage from fire and tree health index as a strong predictor of post-fire mortality of Scots pine and bark beetle occurrence.

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Phylogeography of Monochamus galloprovincialis, the European vector of the pinewood nematode

Cited by 15 publications

References 50 publications

Multi-scale and multi-site resampling of a study area in spatial genetics: implications for flying insect species

Multi-scale and multi-site resampling of a study area in spatial genetics: implications for flying insect species

Pest categorisation of non‐EU Monochamus spp.

Health Condition and Colonization of Stem Insects in Scots Pine after Ground Fire in Central Polissya

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