The role of the monoterpene composition inPinus spp. needles, in host selection by the pine processionary caterpillar,Thaumetopoea pityocampa

Tiberi, Riziero; Niccoli, A.; Curini, Massimo; Epifano, Francesco; Marcotullio, Maria Carla; Rosati, Ornelio

doi:10.1007/bf02981482

Cited by 62 publications

(49 citation statements)

References 16 publications

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“…On the other hand, the presence of nonhost species is known to lead to chemical barriers to host location through the disruption of olfactory host recognition. Such mechanisms have been described, for example, in the case of coniferinhabiting bark beetles (Huber and Borden 2001) and might act similarly on PPM, as it is sensitive to various volatile terpenoids (Tiberi et al 1999;Kanat and Alma 2003;Niccoli et al 2008). More data are necessary to test these hypotheses in the case of PPM.…”

Section: Relationships With Landscapementioning

confidence: 86%

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

Samalens

Rossi

2010

Population Ecology

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Landscape composition and physiognomy affect community structure and species distribution across space and time. The pine processionary moth (PPM) (Thaumetopoea pityocampa Den. & Schiff., Lepidoptera, Notodontidae) is a common pine defoliator throughout southern Europe and Mediterranean countries. We surveyed the spatiotemporal distribution of the PPM in a pine plantation forest in southwestern France and used the density of the winter nests as a proxy for population density. The study spanned 4 years (2005)(2006)(2007)(2008) and showed a high temporal variability in nest density. We found a strong edge effect with nest densities at stand edges more than twice as large as within-stand densities. At the landscape scale, the spatial distribution of the moth exhibited a significant spatial autocorrelation in 3 out of 4 years of our study. The spatial scales of the autocorrelation ranged from ca. 2 km to more than 22 km. We found a positive correlation between spatial distributions corresponding to certain sampling years, but the relationship was not systematic. Landscape configuration appeared to be an important driver of the PPM spatial pattern. Bivariate Moran's I correlograms showed that patch richness density as well as the percentage of local landscape covered by various land uses were correlated with population density. The study showed that accounting for landscape characteristics may be important in order to understand forest insect pest distribution, even in cases where the host species is abundant and homogeneously distributed throughout the study area, e.g., pure plantation forests.

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Section: Relationships With Landscapementioning

confidence: 86%

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

Samalens

Rossi

2010

Population Ecology

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“…Work by Démolin (1969) hypothesized that visual signals are important for host location in pines as the trees with the most prominent silhouette are generally selected. More recently, Tiberi et al (1999) reported that adult females may respond to monoterpenes emitted by the host pines, and Zhang et al (2003) observed that the antenna of the female moth responds to various types of terpenes. At present we are far from understanding the host recognition mechanism in T. pityocampa.…”

Section: Discussionmentioning

confidence: 98%

Effects of Atlas cedar (Cedrus atlantica) defoliation on performance of the pine processionary moth (Thaumetopoea pityocampa)

Sbabdji

Kadik²

2011

J Pest Sci

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The pine processionary moth (Thaumetopoea pityocampa) is an important defoliating insect of native cedar stands in Northern Africa. In 2002 and 2003, we studied the size of needles of Atlas cedar trees that had been defoliated or not in the previous year, and compared the oviposition preference and larval performance of processionary moth on these two types of trees in cedar stands of central Algeria. Needle length and their number per needle cluster were twice as high on non-defoliated trees than on defoliated trees. There were about ten times fewer egg batches on defoliated than on non-defoliated trees in both study years. Young larvae raised in the laboratory on the foliage of previously defoliated trees were smaller compared to those fed on the foliage from healthy trees. Larval colonies transferred to trees in the field showed two times higher mortality on defoliated trees. It was concluded that the decline in population density in defoliated stands often observed after outbreaks results both from the fact that the female moths avoid laying their eggs on defoliated trees and the lower performance of larvae which later feed on the new-grown needles.

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“…The biosynthesis and biogenesis of the various mono-and sesquiterpenes are genetic and species-dependent [10,11]. At another level, they are also important in the complex interactions between forest insects and their conifer hosts [12,13]. Because of the importance of volatile secondary metabolites in insect-host plant relationships, and in chemotaxonomic studies, interest in the study of the enantiomer distribution of some monoterpenes has recently emerged.…”

Section: Introductionmentioning

confidence: 99%

Differentiation of ten pine species from central portugal by monoterpene enantiomer-selective composition analysis using multidimensional gas chromatography

et al. 2001

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SummaryThe composition of the volatile terpenes emitted by different trees has been successfully used as markers in a wide variety of studies such as chemotaxonomy. In this work discrimination among ten pine species, R pinea, R pinaster, R brutia, R elliottii, R halepensis, R kesiya, R radiata, R patula, R sylvestris, and R taeda was achieved by analyzing the relative composition of their volatile emissions. The analysis was performed after simultaneous distillation extraction; 16 monoterpenes were identified. My means of principal component analysis it was shown that discrimination among species could be maximized by taking into account three monoterpenes only -~z-pinene,/~-pinene, and hmonene. In a second stage of the work the extracts were submitted to enantiomer-selective multidimensional gas chromatography (MDGC). The enantiomer ratio was determined after separation on a tailor-made 2, 3-dimethyl-6-9 methylsilyl-/~-cyclodextrin analytical column. Application of principal component analysis to the samples enabled their comparative characterization.

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The role of the monoterpene composition inPinus spp. needles, in host selection by the pine processionary caterpillar,Thaumetopoea pityocampa

Cited by 62 publications

References 16 publications

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

Effects of Atlas cedar (Cedrus atlantica) defoliation on performance of the pine processionary moth (Thaumetopoea pityocampa)

Differentiation of ten pine species from central portugal by monoterpene enantiomer-selective composition analysis using multidimensional gas chromatography

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