Sequential invasions by fruit flies (Diptera: Tephritidae) in Pacific and Indian Ocean islands: A systematic review

Duyck, Pierre François; Jourdan, Hervé; Mille, Christian

doi:10.1002/ece3.8880

Cited by 10 publications

(7 citation statements)

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“…A number of Tephritidae are well-known for being invasive and have expanded their distribution beyond their native ranges, and many species in the genus Bactrocera have invaded areas occupied by native Ceratitis spp. (Duyck et al, 2004(Duyck et al, , 2022. Because of their wide host range and invasive potential, several Bactrocera spp.…”

Section: Introductionmentioning

confidence: 99%

Niche partitioning via host plants and altitude among fruit flies following the invasion of Bactrocera dorsalis

Hassani

Delatte

Ravaomanarivo

et al. 2022

Agri and Forest Entomology

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1. Invasions by exotic species in areas already occupied by related species may lead to extinction or niche partitioning. Bactrocera dorsalis has invaded the Comoros archipelago in 2005 where other tephritids were already present.2. The host ranges of fruit flies in the Comoros were studied by conducting a sevenyear survey on the three islands of the archipelago with a substantial sampling effort comprising 91 plant species from 37 families.3. The results showed that 45 fruit species in 16 families were infested by tephritid species. Eight fruit fly species were detected in the sampled fruits, but 78% of the individuals were identified as B. dorsalis, confirming its dominance and polyphagous status.4. More than ten years after its invasion, B. dorsalis has replaced Ceratitis capitata as the dominant fruit fly species on several species such as mango and citrus. The coexistence between B. dorsalis and C. capitata seems possible due to the capacity of the latter to exploit different niches, i.e. higher altitudinal ranges and a few host fruit species (among which, chillies and coffee berries) constituting a refuge niche.5. Information about coexistence between B. dorsalis and other tephritids is useful for the management and better estimates of invasion risks and associated biosecurity measures.

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Section: Introductionmentioning

confidence: 99%

Niche partitioning via host plants and altitude among fruit flies following the invasion of Bactrocera dorsalis

Hassani

Delatte

Ravaomanarivo

et al. 2022

Agri and Forest Entomology

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“…Despite all the cases of invasion in fruit fly species, competitive exclusion is very rare. In fruit flies, the only case of exclusion was reported for C. catoirii in Mauritius because of pressure from successive invasions of different species over the years (Duyck et al, 2004, 2022). Although populations may be sufficiently abundant during biological invasions to cause interspecific competition (Duyck et al, 2022), many authors suggest that direct competition is not the determinant mechanism for phytophagous communities (Kaplan & Denno, 2007), which includes fruit flies (Clarke, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…In fruit flies, the only case of exclusion was reported for C. catoirii in Mauritius because of pressure from successive invasions of different species over the years (Duyck et al, 2004, 2022). Although populations may be sufficiently abundant during biological invasions to cause interspecific competition (Duyck et al, 2022), many authors suggest that direct competition is not the determinant mechanism for phytophagous communities (Kaplan & Denno, 2007), which includes fruit flies (Clarke, 2016). On the contrary, more and more articles show that indirect interactions are common, such as apparent competition, which structures insect communities and produces similar patterns to those found when there is competition for resources (Bird et al, 2019; Frost et al, 2016; Morris et al, 2005; van Veen et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

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Tri‐trophic interactions among Fopius arisanus, Tephritid species and host plants suggest apparent competition

Moquet

Jobart

Fontaine³

et al. 2023

Ecology and Evolution

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When several polyphagous herbivore species share a parasitoid, the tri-trophic interaction networks can be difficult to predict. In addition to direct effects, the parasitoid may influence the herbivore community by mediating indirect interactions among hosts. The plant species can also modulate the parasitoid preference for a specific host. One of the indirect effects is apparent competition, a negative interaction between individuals as a result of the action of shared natural enemies. Here, we focus on the interactions between the parasitoid Fopius arisanus (Braconidae) and two generalist fruit fly pests: Bactrocera dorsalis and Bactrocera zonata (Tephritidae). This parasitoid was introduced into La Réunion in 2003 to control populations of B. zonata and can also interact with B. dorsalis since its invasion in 2017. Our main objective is to characterize the tri-trophic interactions between F. arisanus, fruit fly and host plant species. We developed a long-term field database of fruit collected before and after the parasitoid introduction and after the B. dorsalis invasion in order to compare parasitism rate and fruit fly infestation for the different periods. In laboratory assays, we investigated how the combination of fruit fly species and fruit can influence the preference of F. arisanus. In the field, before the invasion of B. dorsalis, the parasitism rate of F. arisanus was low and had a little impact on the fruit fly infestation rate. After the B. dorsalis invasion, we observed an increase in parasitism rate from 5% to 17%. A bioassay showed that females of F. arisanus could discriminate between eggs of different fruit fly and host plant species. The host plant species preference changed in relation to the fruit fly species inoculated. Field observations and laboratory experiments suggest the possible existence of apparent competition between B. dorsalis and B. zonata via F. arisanus.

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“…The vast bulk of tephritid competition research has been done in invasive situations, studying competition between a newly invasive species and endemic species or previously established exotics (Biasazin et al 2021;Duyck et al 2004Duyck et al , 2006Duyck et al , 2022Ekesi et al 2009;Fitt 1989;Moquet et al 2021). In stark contrast, very little attention has been made to the study of competitive interactions between fruit fly species in established, endemic communities.…”

Section: Introductionmentioning

confidence: 99%

Larval competition between three endemic fruit flies (Diptera: Tephritidae) of differing phylogenetic relatedness

Kay,

Harris,

Clarke

2024

Austral Entomology

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Within a fruit, fruit fly larvae can be subject to scramble competition, in which density‐dependent effects can influence the fitness of subsequent adults. While there is significant research on tephritid interspecific larval competition, it has been conducted in invasive situations where the species are evolutionarily novel to each other. There has been no published research investigating larval competitive interactions between naturally coexisting, endemic species. We ran laboratory‐based, intraspecific and interspecific larval competition trials involving three co‐occurring Bactrocera species of differing genetic relatedness and also measured aspects of juvenile development rate to test possible mechanisms of competitive difference. Larval density had an influence on intraspecific competition in Bactrocera tryoni, Bactrocera neohumeralis and Bactrocera jarvisi, with a decreasing percentage of pupation with increasing larval density. Interspecific competition between B. tryoni and B. neohumeralis, and between B. tryoni and B. jarvisi was influenced by the interaction between species and density. The intensity of competition between B. tryoni and B. neohumeralis was minimal but high between B. tryoni and B. jarvisi. B. jarvisi produced larger eggs and had faster initial larval growth rates than the other two species, but it took the longest time for pupation to occur. Our results conflict with theory, as the greatest competition was observed between the two more distantly related species (B. tryoni and B. jarvisi) rather than between the two most closely related species (B. tryoni and B. neohumeralis). Further, and contrary to other studies, egg size, hatch rate and larval growth rate did not provide B. jarvisi with a competitive advantage; thus, larval size does not appear to be a mechanism of larval competition between B. tryoni and B. jarvisi.

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Sequential invasions by fruit flies (Diptera: Tephritidae) in Pacific and Indian Ocean islands: A systematic review

Cited by 10 publications

References 76 publications

Niche partitioning via host plants and altitude among fruit flies following the invasion of Bactrocera dorsalis

Niche partitioning via host plants and altitude among fruit flies following the invasion of Bactrocera dorsalis

Tri‐trophic interactions among Fopius arisanus, Tephritid species and host plants suggest apparent competition

Larval competition between three endemic fruit flies (Diptera: Tephritidae) of differing phylogenetic relatedness

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