The Extent of Seed Predation by Bruchine Beetles (Coleoptera: Chrysomelidae: Bruchinae) in a Heterogeneous Landscape in Southeastern Brazil

Rodrigues, Ligia M. S.; Viana, Jéssica Herzog; Ribeiro-Costa, Cibele S.; Rossi, Marcelo

doi:10.1649/072.066.0315

Cited by 15 publications

(8 citation statements)

References 34 publications

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“…Bruchine beetles (Coleoptera: Chrysomelidae: Bruchinae) are exclusively seed feeders during the larval stage; they are highly host specific and more than 80% of the known species feed on legumes (Farrell & Sequeira, 2004; Ribeiro-Costa & Almeida, 2012; Rodrigues et al ., 2012). Some parasitoid families are quite representative in attacking bruchine beetles.…”

Section: Introductionmentioning

confidence: 99%

Geographic distribution, large-scale spatial structure and diversity of parasitoids of the seed-feeding beetleAcanthoscelides macrophthalmus

Wood

Haga

Costa

et al. 2016

Bull. Entomol. Res.

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Bruchine beetles are highly host-specific seed feeders during the larval stage. Although some specific parasitoid families have been recorded attacking bruchine beetles, most studies have been done at small spatial scales. Therefore, the current knowledge about the diversity and the geographic distribution of parasitoid species parasitizing bruchines is scarce, especially at a wide geographic area that extends over large distances through a latitudinal cline (i.e. large-scale spatial structure). The present study determined the species richness and evenness of parasitoids attacking the bruchine beetle Acanthoscelides macrophthalmus feeding on Leucaena leucocephala seeds, examined their geographic distribution, and characterized the large-scale spatial structure in parasitoid species composition. A total of 1420 parasitoids (all Hymenoptera) belonging to four families, five subfamilies and eight species were collected (genera: Horismenus, Paracrias, Urosigalphus, Stenocorse, Chryseida, Eupelmus). Most parasitoid species showed wide spatial distribution, high evenness in species abundance and the species richness estimators were close to stabilization (approximately eight species). Overall, greater similarity was observed in the species composition of plant populations near to each other than those farther apart, revealing a large-scale spatial structure in parasitoid species composition.

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Section: Introductionmentioning

confidence: 99%

Geographic distribution, large-scale spatial structure and diversity of parasitoids of the seed-feeding beetleAcanthoscelides macrophthalmus

Wood

Haga

Costa

et al. 2016

Bull. Entomol. Res.

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“…From the total number of seeds analyzed (n = 1,238), 57% were healthy, 27% were damaged by seed beetles, and 16% were empty and/or without embryo ( Table 1). The percentage of damaged seeds found in this study was high compared to the result obtained by , who found 12.5% of S. multijuga seeds damaged by Sennius crudelis Ribeiro Costa & Reynaud, 1998, Sennius puncticollis (Fåhraeus, 1839 and Sennius nappi Ribeiro- Costa & Reynaud, 1998. Nevertheless, the percentage of seeds damaged by bruchines may vary considerably between species, as demonstrated in the study by Rodrigues et al (2012), who found a predation rate which varied from 0.62% in Senna hirsuta (L.) H.S.Irwin & Barneby (Fabaceae) by Acanthoscelides sp. to 42.08% in Leucaena leucocephala (Lam.)…”

Section: Resultsmentioning

confidence: 97%

Damage Caused by Seed-Feeding Insects in Senna corymbosa: A New Host Plant for the Subfamily Bruchinae

et al. 2021

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In the larval stage, bruchines can cause several damages to the seeds of their host plants due to the consumption of the embryo. The aim of this study was to identify the species of seed-feeding insects in Senna corymbosa (Fabaceae) and quantify the damage caused to seeds. For this purpose, ripe fruits of S. corymbosa were collected monthly from May to August 2014. The fruits were stored in containers to obtain the adult insects and quantify the damage to the seeds. A total of 3,548 seed beetles emerged from the fruits, around 89% belonging to Sennius lateapicalis. Insects consume up to 43.2% of the internal seed content. Moreover, the seed beetles Hymenoptera parasitoids emerged. In this study, seed-feeding insects are recorded for the first time in S. corymbosa. In addition, it contributes to describing fruits and seeds, as well as associated bruchine species and the damage they cause to seeds.

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“…In these cases, that bruchine usually increases the speed of seed germination. However, especially when seeds of L. leucocephala are small and attacked by more than one larva, A. macrophthalmus acts as a predator, killing the seed embryo (Rodrigues et al, 2012; Silva & Rossi, 2019). Here, in both lighter and heavier seeds, A. quadridentatus fed on only one seed and acted like a predator.…”

Section: Discussionmentioning

confidence: 99%

Phenotypic plasticity in Acanthoscelides quadridentatus (Coleoptera: Chrysomelidae) and its effect on the seed fate of Mimosa setosa (Leguminosae: Mimosoideae)

Sousa-Lopes

Del‐Claro

2022

Ecological Entomology

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In animals, changes in colour pigmentation in an intraspecific context are usually described as a polymorphism adaptive to environmental factors. According to the thermal melanism hypothesis (TMH), melanic individuals are more active because they may attain higher temperature and then benefit from higher size, foraging time and reproduction. The polymorphic seed‐beetle Acanthoscelides quadridentatus (Coleoptera: Chrysomelidae) naturally attacks the seeds of two plant varieties, Mimosa setosa var. paludosa and M. setosa var. setosa, in the Brazilian savanna. The authors tested TMH in this system, predicting that melanic beetles would be larger, and infringe worst germination rate and higher seed mortality. Additionally, they tested whether seed weight plays a role in germination. The authors found two beetle morphs: a melanic/1.1‐fold larger and another lighter/smaller. Seeds of M. setosa var. setosa are 1.9‐fold heavier and its intact seeds germinate faster and with a higher amount than the seeds of M. setosa var. paludosa. There is no difference in the attack rate by beetle morphs. The attacked seeds of both plant varieties did not germinate. The authors evidence phenotypic plasticity in A. quadridentatus, highlighting that TMH is confirmed for the relationship between melanism and larger sizes, although there was no difference in foraging of melanic individuals. This study shed light on the importance of plant varieties in driving the morphology of seed‐beetles.

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The Extent of Seed Predation by Bruchine Beetles (Coleoptera: Chrysomelidae: Bruchinae) in a Heterogeneous Landscape in Southeastern Brazil

Cited by 15 publications

References 34 publications

Geographic distribution, large-scale spatial structure and diversity of parasitoids of the seed-feeding beetleAcanthoscelides macrophthalmus

Geographic distribution, large-scale spatial structure and diversity of parasitoids of the seed-feeding beetleAcanthoscelides macrophthalmus

Damage Caused by Seed-Feeding Insects in Senna corymbosa: A New Host Plant for the Subfamily Bruchinae

Phenotypic plasticity in Acanthoscelides quadridentatus (Coleoptera: Chrysomelidae) and its effect on the seed fate of Mimosa setosa (Leguminosae: Mimosoideae)

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