Plasticity in resource use by the leafminer moth <i>Phyllocnistis</i> sp. in response to variations in host plant resources over space and time

Ayabe, Yoshiko; Minoura, Tetsuaki; Hijii, Naoki

doi:10.1007/s10310-014-0467-9

Cited by 11 publications

(27 citation statements)

References 25 publications

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“…Climatic variations (Agosta 2006), phenological and physiological state of the plants (Ayabe et al 2014), local selective pressures on plant traits (Castillo et al 2014), or the presence of plant endophytic symbionts and insect pathogens (Crawford et al 2010;Gurulingappa et al 2010) may also have an influence on host plant availability for the insects. Such variability in plant resource may have a significant impact on the spatiotemporal patterns of plant selection for female oviposition.…”

Section: Discussionmentioning

confidence: 99%

Could alternative solanaceous hosts act as refuges for the tomato leafminer, Tuta absoluta?

Bawin

Dujeu

Backer

et al. 2015

Arthropod-Plant Interactions

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The tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae), is a widespread devastating pest reported to develop on economically important solanaceous plants. The characterization of its effective host range could help to understand and prevent the dispersion behavior of the insect in the environment. In this study, the ability of T. absoluta to locate and develop on wild (Solanum nigrum, Atropa belladonna, Datura stramonium) and cultivated (Solanum tuberosum) solanaceous plant species under laboratory conditions was assessed. Dual-choice behavioral assays performed in flying tunnels (S. tuberosum vs. another plant) revealed that adult distribution and female oviposition did not differ between Solanum species, which were preferred to the other tested plants. The volatile molecules released by each tested plant species provide some explanations in the observed behavioral discrimination: S. nigrum and S. tuberosum volatile profiles were similar and were presenting quantitative and qualitative differences with the other tested solanaceous plants. To determine whether the host plant choice was adaptive or not, we have finally conducted fitness assays, by rearing T. absoluta larvae on each plant species and have shown that Solanum species allowed higher larval survivability and lower development time (from egg to adult emergency) compared to the other plants. We conclude that Solanum species are suitable host plants for T. absoluta, but other solanaceous plant species could be opportunistically colonized with fewer incidences.

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Section: Discussionmentioning

confidence: 99%

Could alternative solanaceous hosts act as refuges for the tomato leafminer, Tuta absoluta?

Bawin

Dujeu

Backer

et al. 2015

Arthropod-Plant Interactions

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“…initially uses leaves of primary shoots, then shifts to young leaves of lammas shoots (Ayabe et al, 2015). We selected 26 L. japonicum trees (3.5-11.8 cm trunk diameter at the base, 1.2-6.7 m high).…”

Section: Study Systemmentioning

confidence: 99%

“…We selected 26 L. japonicum trees (3.5-11.8 cm trunk diameter at the base, 1.2-6.7 m high). The details of the study system were described by Ayabe et al (2015). At the site, L. japonicum trees flushed leaves synchronously from April to early May (primary shoots) and successively produced new foliage as midsummer shoots and compensatory shoots in response to herbivory (lammas shoots).…”

Section: Study Systemmentioning

confidence: 99%

“…is multivoltine, active from May to October (Ayabe et al, 2015), and forms mines on both the upper and lower surfaces of leaves of the Japanese privet, Ligustrum japonicum Thunb. This would allow us to explore the possibility that evolution of a defense strategy against parasitism affected the adaptive radiation of lower-surface mining across the lepidopteran leafminer species.…”

Section: Introductionmentioning

confidence: 99%

“…This would allow us to explore the possibility that evolution of a defense strategy against parasitism affected the adaptive radiation of lower-surface mining across the lepidopteran leafminer species. Only about 30% of mines were formed on the upper surface (Ayabe et al, 2015). (Lepidoptera: Gracillariidae, Phyllocnistinae).…”

Section: Introductionmentioning

confidence: 99%

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Avoidance of parasitoid attack is associated with the spatial use within a leaf by a lepidopteran leafminer

Ayabe

Hijii

2016

Entomologia Exp Applicata

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In prey-predator systems, top-down effects can be a powerful determinant for spatial distributions of prey through their search for enemy-free space. Leafminers live and eat within leaves, making feeding tracks called mines, and mine conspicuousness exposes them to a high risk of parasitism. Those lepidopteran leafminers that use lower leaf surfaces as mining sites show wide evolutionary radiation. We hypothesized that leafminers making mines on the lower surface are less often detected by parasitoids and thus have a selective advantage in avoiding parasitism compared to those on the upper surface. To investigate the adaptiveness of lower-surface mining, we examined the relationship between parasitism and within-leaf mine distribution for 3 years using a field population of the leafminer Phyllocnistis spec. (Lepidoptera: Gracillariidae, Phyllocnistinae), which prefers the lower surface of leaves of the Japanese privet, Ligustrum japonicum Thunb. (Oleaceae). Parasitoid attack was more frequent in the upper-surface mines than in the lower-surface mines and on leaves with uppersurface mines than on leaves with only lower-surface mines. When both surfaces were mined, leafminers on the lower surface could avoid parasitism. Upper-surface mines were attacked by more parasitoid species as compared to lower-surface mines. Although the results demonstrated that mining on the lower surface was advantageous in avoiding parasitism, the vulnerability of lower-surface mines to parasitism varied depending on their abundance. When many lower-surface mines were present, lower-surface mines suffered a higher parasitism rate than upper-surface mines, probably because parasitoids formed search images for and concentrated on lower-surface mines. This study suggests that the preferential use of the lower leaf surface by leafminers is in part attributed to interactions with parasitoids.

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Independent life history evolution between generations of bivoltine species: a case study of cyclical parthenogenesis

Hood

Ott

2017

Oecologia

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Successive generations of bi- and multivoltine species encounter differing biotic and abiotic environments intra-annually. The question of whether selection can independently adjust the relationship between body size and components of reproductive effort within successive generations in response to generation-specific environmental variation is applicable to a diversity of taxa. Herein, we develop a conceptual framework that illustrates increasingly independent life history adjustments between successive generations of taxa exhibiting complex life cycles. We apply this framework to the reproductive biology of the gall-forming insect, Belonocnema treatae (Hymenoptera: Cynipidae). This bivoltine species expresses cyclical parthenogenesis in which alternating sexual and asexual generations develop in different seasons and different environments. We tested the hypotheses that ecological divergence between the alternate generations is accompanied by generational differences in body size, egg size, and egg number and by changes in the relationships between body size and these components of reproductive effort. Increased potential reproductive effort of sexual generation B. treatae is attained by increased body size and egg number (with no trade-off between egg number and egg size) and by a significant increase in the slope of the relationship between body size and potential fecundity. These generation-specific relationships, interpreted in the context of the model framework, suggest that within each generation selection has independently molded the relationships relating body size to potential fecundity and potential reproductive effort in B. treatae. The conceptual framework is broadly applicable to comparisons involving the alternating generations of bi- and multivoltine species.

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Plasticity in resource use by the leafminer moth Phyllocnistis sp. in response to variations in host plant resources over space and time

Cited by 11 publications

References 25 publications

Could alternative solanaceous hosts act as refuges for the tomato leafminer, Tuta absoluta?

Could alternative solanaceous hosts act as refuges for the tomato leafminer, Tuta absoluta?

Avoidance of parasitoid attack is associated with the spatial use within a leaf by a lepidopteran leafminer

Independent life history evolution between generations of bivoltine species: a case study of cyclical parthenogenesis

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