Diversidade e índice de infestação de Anastrepha spp. em goiabeiras comerciais de Boa Vista, Roraima

Trassato, L.B.; Lima, Antônio César Silva; Bandeira, H.F.S.; Neto, João Luiz Lopes Monteiro; Silva, Edgley Soares da; Ronchi‐Teles, Beatriz

doi:10.5039/agraria.v11i4a5400

Cited by 2 publications

(2 citation statements)

References 17 publications

(24 reference statements)

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“…Silva et al (2011b) observed that it represented 92% of the individuals caught and was the only one infesting P. guajava. Trassato et al (2016) verified that this fly is the most frequent and important in guava fruit farming in Boa Vista, State of Roraima. Therefore, the higher number of A. striata and its association with P. guajava in this environment can be because it is its primary host.…”

Section: Resultsmentioning

confidence: 81%

Does the surrounding vegetation influence the fruit fly assemblage in guava orchards?

Vargas¹,

Abot

Acosta

et al. 2019

Biosci. J.

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This study aimed to evaluate how the surrounding vegetation affects the assemblage of fruit flies. For this, flies were collected in guava orchards with distinct types of surrounding vegetation (exotic pasture, native forest and fruit tree intercropping). The experiment was conducted in Itaporã and Dourados, State of Mato Grosso do Sul, Brazil. Weekly samples were collected from March to April 2015. McPhail traps were baited with 5% hydrolyzed corn protein. Species richness, diversity index and abundance were evaluated for each orchard, as well as the species composition of fruit fly between the environments surrounding the orchard and, finally, the sex ratio. A total of 579 individuals were collected of the species Anastrepha fraterculus, A. montei, A. obliqua, A. sororcula, A. striata, A. turpiniae and A. zenildae. The orchard surrounded by native forest had the highest species richness and Shannon diversity. The species composition differed between environments, with the formation of three distinct groups. The environment surrounding the guava orchard influences the richness, diversity, abundance and sex ratio of fruit flies, indicating that the native forest may provide more resources for the maintenance of these insects.

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Section: Resultsmentioning

confidence: 81%

Does the surrounding vegetation influence the fruit fly assemblage in guava orchards?

Vargas¹,

Abot

Acosta

et al. 2019

Biosci. J.

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show abstract

“…Infestation analysis in orchards also has shown A. obliqua infesting all hosts, including guavas (Alvarenga et al. 2010; Trassato et al., 2016), even yet showing preference for Anacardiaceae family. That situation also suggests a possibility of the expansion of A. obliqua to orchards with the preferred fruit hosts of A. fraterculus (such as guava), owing to the greater competitive capacity of the former even on non‐preferential hosts.…”

Section: Discussionmentioning

confidence: 99%

Competitive strategies between Anastrepha fraterculus and Anastrepha obliqua (Diptera: Tephritidae) regulating the use of host fruits

Petitinga

Roriz

Joachim‐Bravo

2021

J Applied Entomology

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Interspecific competition between individuals of different species can result in reductions in their fecundity, growth or survival, reflecting differential exploitation of resources that become intensified due to spatial co‐occurrence, ecological similarity and increased population densities. As two species cannot occupy the same niche, coexistence is only possible if the available resources are used in non‐overlapping manners such as niche partitioning or the use of refuges. Among agricultural insect pests, such as fruit flies of the family Tephritidae, competitive interactions can result in competitive displacement, host changes, or the expansion or restriction of the numbers of hosts utilized that can have negative consequences for human agricultural activities. We evaluated the competitive interactions between two fruit fly species of the genus Anastrepha, Anastrepha obliqua (Macquart, 1835) and Anastrepha fraterculus (Wiedmann, 1830), on their respective preferred hosts (mangoes and guava). Experiments of larval competition and competition for ovipositioning sites by adult females were performed to compare the parameters of larval development time, numbers of pupae and emerged adults and numbers of ovipositions in the presence or absence of interspecific competition. We observed that the interactions between those species were asymmetrical and hierarchical, and our results suggest a competitive displacement of A. fraterculus by A. obliqua when those two species are present on the same fruit, whether mangoes or guavas.

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Diversidade e índice de infestação de Anastrepha spp. em goiabeiras comerciais de Boa Vista, Roraima

Cited by 2 publications

References 17 publications

Does the surrounding vegetation influence the fruit fly assemblage in guava orchards?

Does the surrounding vegetation influence the fruit fly assemblage in guava orchards?

Competitive strategies between Anastrepha fraterculus and Anastrepha obliqua (Diptera: Tephritidae) regulating the use of host fruits

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