Larval performance of two leafroller species on known and potential hosts

Smirle, Michael J.

doi:10.1111/j.1570-7458.1993.tb01672.x

Cited by 3 publications

(2 citation statements)

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“…Our results suggest that nutrient composition at least partly explains the suitability of host fruits for larvae of the seven tephritids in La Réunion Island. From an applied perspective, information on the performance of phytophagous larvae on potential hosts is essential for predicting future host range expansion, population size, and plant damage [ 32 , 87 ]. Future studies should also investigate female preference to increase our understanding of the factors driving tephritid host range.…”

Section: Discussionmentioning

confidence: 99%

Host plant range of a fruit fly community (Diptera: Tephritidae): does fruit composition influence larval performance?

et al. 2016

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BackgroundPhytophagous insects differ in their degree of specialisation on host plants, and range from strictly monophagous species that can develop on only one host plant to extremely polyphagous species that can develop on hundreds of plant species in many families. Nutritional compounds in host fruits affect several larval traits that may be related to adult fitness. In this study, we determined the relationship between fruit nutrient composition and the degree of host specialisation of seven of the eight tephritid species present in La Réunion; these species are known to have very different host ranges in natura. In the laboratory, larval survival, larval developmental time, and pupal weight were assessed on 22 fruit species occurring in La Réunion. In addition, data on fruit nutritional composition were obtained from existing databases.ResultsFor each tephritid, the three larval traits were significantly affected by fruit species and the effects of fruits on larval traits differed among tephritids. As expected, the polyphagous species Bactrocera zonata, Ceratitis catoirii, C. rosa, and C. capitata were able to survive on a larger range of fruits than the oligophagous species Zeugodacus cucurbitae, Dacus demmerezi, and Neoceratitis cyanescens. Pupal weight was positively correlated with larval survival and was negatively correlated with developmental time for polyphagous species. Canonical correspondence analysis of the relationship between fruit nutrient composition and tephritid survival showed that polyphagous species survived better than oligophagous ones in fruits containing higher concentrations of carbohydrate, fibre, and lipid.ConclusionNutrient composition of host fruit at least partly explains the suitability of host fruits for larvae. Completed with female preferences experiments these results will increase our understanding of factors affecting tephritid host range.Electronic supplementary materialThe online version of this article (doi:10.1186/s12898-016-0094-8) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Host plant range of a fruit fly community (Diptera: Tephritidae): does fruit composition influence larval performance?

et al. 2016

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“…The consequences when oligophagous herbivores exploit alternate hosts are that developmental rates and/ or maximum size can be significantly altered (Smirle 1993). In the New Zealand ascoglossan-algal association, Elysia maoria and Placida dendritica are considerably stunted on the introduced Codium fragile ssp.…”

Section: Introduced Prey Speciesmentioning

confidence: 99%

Host-Plant Change in Marine Specialist Herbivores: Ascoglossan Sea Slugs on Introduced Macroalgae

Trowbridge

Todd

2001

Ecological Monographs

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In the British Isles, oligophagous marine herbivores, particularly the ascoglossan (ϭ sacoglossan) sea slug Elysia viridis, associate with the introduced green macroalga Codium fragile ssp. tomentosoides. Slugs prefer to associate with and consume the introduced C. fragile to the native C. tomentosum. Our investigation of adult, larval, and juvenile E. viridis focused on whether this association is attributable (1) to a host switch or (2) to an expansion from native hosts to the introduced C. fragile ssp. tomentosoides. Growth rates and maximum body sizes of E. viridis on introduced hosts were greater than on natives. Although the native Cladophora rupestris induced a high rate of slug metamorphosis, recently metamorphosed juvenile E. viridis (from Codium fragile-feeding parents) were generally not able to feed or grow on the native alga. In contrast, juveniles from Cladophora-feeding parents could eat Cladophora, although their performance was highly variable. Small, postlarval slugs (Ͻ800 m long) could not effectively puncture cell walls and extract algal cytoplasm and chloroplasts from Cladophora; slugs fed far more readily on the thin-walled C. fragile. The new association appeared to be a host switch such that Codium fragile feeders and their offspring had limited capacity to complete their life cycle on the native host Cladophora. Larval metamorphosis in E. viridis was greatest on potential host species, but larvae also responded to nonhost macrophytes and adult conspecifics. The generality of larval host-plant selection and larval metamorphosis enables oligophagous adult consumers to exploit spatially unpredictable novel hosts, to capitalize on newly available host plants, and to exhibit spatial and temporal variation in host-plant associations.

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Molecular Phylogeny Within and Between Species of the <I>Archips argyrospila</I> Complex (Lepidoptera: Tortricidae)

Kruse

Sperling²

2001

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Larval performance of two leafroller species on known and potential hosts

Cited by 3 publications

References 15 publications

Host plant range of a fruit fly community (Diptera: Tephritidae): does fruit composition influence larval performance?

Host plant range of a fruit fly community (Diptera: Tephritidae): does fruit composition influence larval performance?

Host-Plant Change in Marine Specialist Herbivores: Ascoglossan Sea Slugs on Introduced Macroalgae

Molecular Phylogeny Within and Between Species of the <I>Archips argyrospila</I> Complex (Lepidoptera: Tortricidae)

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