Preferencias entre cinco carbohidratos en Pheidole bilimeki (Hymenoptera: Formicidae)

Rosas‐Mejía, Madai; Correa-Sandoval, Alfonso; Venegas-Barrera, Crystian Sadiel; Horta-Vega, Jorge Víctor

doi:10.21829/azm.2015.312985

Cited by 7 publications

(3 citation statements)

References 34 publications

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“…The quality and concentration of nutrients may affect the number of ovarioles and, as a consequence, cause changes in vitellogenesis, maturation, and egg production by insects (Engelmann, 1970). Carbohydrates, proteins, and lipids are associated with the production of enzymes and hormones in the vitellogenesis process (Rosas‐Mejía et al., 2015). Our results show that females previously fed on banana presented a profile of nutrient levels, reproduction, and appearance of oocytes similar to females fed only on cotton squares.…”

Section: Discussionmentioning

confidence: 99%

Survival and alterations in reproductive organs of the cotton boll weevil, Anthonomus grandis grandis, fed alternative food

da Costa Moura,

Tripode,

de Azevedo Brito

et al. 2024

Entomologia Exp Applicata

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The cotton boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is one of the most important insect pests of cotton, causing significant yield losses. This insect completes its life cycle only on the flower structures of some Malvaceae species, with cotton being its preferred host. However, during the cotton off‐season, the boll weevil enters a reproductive dormancy state, in tropical regions, with important alterations in their reproduction organs. During this period, a remaining insect population survives feeding on a variety of other food sources, but the insects do not reproduce. We hypothesized that these alterations in the insect's reproductive organs are associated with the nutritional levels provided by alternative food sources during the cotton off‐season. To test our hypothesis, we first investigated food sources that sustain insect survival for long periods, such as weed species and fruits of cultivated crops. Then, we evaluated how various food sources affect the reproductive organs and reproductive capacity of the boll weevil. Among the alternative food sources tested, insect longevity was highest on banana (Musa paradisiaca L.), mango (Mangifera indica L.), papaya (Carica papaya L.), milkweed (Euphorbia heterophylla L.), and lilac tasselflower (Emilia sonchifolia L.). However, only banana and mango resulted in greater longevity than cotton squares. Banana was the preferred food and resulted in the highest levels of nutrients in the insects. Additionally, insects previously fed on banana made more oviposition punctures on cotton squares than those fed only on cotton squares, which resulted in a significantly higher number of emerged adults. Histological analysis of the insects' reproductive organs showed that feeding on papaya resulted in morphological changes and testicle degradation. In conclusion, we present evidence that boll weevils fed on alternative food sources (other than cotton squares or similar‐quality food) display a nutritional imbalance, associated with substantial alterations in the reproductive tissues of this insect, which may trigger the reproductive dormancy state.

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Section: Discussionmentioning

confidence: 99%

Survival and alterations in reproductive organs of the cotton boll weevil, Anthonomus grandis grandis, fed alternative food

da Costa Moura,

Tripode,

de Azevedo Brito

et al. 2024

Entomologia Exp Applicata

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show abstract

“…Another possible cellular effect caused by insecticides is histopathological changes. In the gonads, such effects may result from the direct action of the xenobiotic on the target organ and/or from alterations in nutritional acquisition, which may lead to a reduction in gamete formation and consequent population reduction (Rosas-Mejía et al, 2015;Cruz et al, 2017;Silva et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Cellular mechanisms of the lufenuron growth regulator in adults of Anthonomus grandis (Coleoptera: Curculionidae)

et al. 2023

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Growth-regulating insecticides are used for several cotton pests when immature, and although not registered for Anthonomus grandis, their use causes a satisfactory population reduction in adults. However, it is not known which mechanisms are involved in this reduction. Thus, we studied which tissue and cellular changes may be involved in this process. Adults were fed with flower buds treated with lufenuron (4 ml commercial product /l) for 24 h. Then, the histology of the gonads, oxidative stress and apoptosis were evaluated after periods of 24 h and 48 h. Our study revealed that lufenuron activates the oxidative stress pathway in A. grandis, causing significant changes at the cellular level. These changes may have been caused by stimulation of the production of oxygen ions, free radicals and hydrogen peroxides, resulting in an increase in lipid peroxidation 48 h after treatment. These effects were confirmed by the presence of histopathologies in the gonads of this pest such as disorganization of the follicular cell epithelium, reduction of the yolk, disappearance of the germinal vesicle, reduction of sperm bundles and cysts. Such alterations injured the gonads and impaired tissue homeostasis. It is concluded that together these factors lead to a desirable population reduction when it comes to managing the pest in the field, because the aim is to keep it below the control level. In addition to this desired effect, it is worth noting that lufenuron is safer when compared to other commonly used products, another feature that makes its use quite interesting.

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“…Until now, little research has been carried out on the urban myrmeco fauna of Mexico. One study detailed a rapid descriptive ecological assessment for testing the effect of urbanization on ant morphospecies (MacGregor-Fors et al, 2015), and several additional studies have reported on the importance of urban green spaces as reservoirs of ant diversity (Rocha & Castaño-Meneses, 2015), the bait preferences of ants (Rosas-Mejía et al, 2015), and new species records (Rosas-Mejía et al, 2013;Landero-Torres et al, 2014). However, it is crucial to contribute toward current knowledge of the real influence of urbanization on ant species diversity at a local and landscape level.…”

Section: Research Article -Antsmentioning

confidence: 99%

Diversity of Ants (Hymenoptera: Formicidae) in a Sub-Montane and Sub-Tropical Cityscape of Northeastern Mexico

et al. 2019

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- The role of urban ecosystems in maintaining biodiversity and ecosystem services is highly variable because of the heterogeneity of habitats in human-use landscapes. We analyzed ant diversity in a sub-montane and sub-tropical urban area of northeastern Mexico to determine the conservation value of this cityscape. Ants were collected in 16 across the cityscape, including spaces at the periphery and urban center, during the rainy season (August to October) of 2015. To capture ants, eight trap traps were installed along a 100-m transect, and hand collections were performed. In total, 7,415 ant workers belonging to 32 species, 23 genera, 11 tribes, and 5 sub-families were collected. The richness and structure of the assemblages varied among the sampling sites. The compositional similarity also varied significantly among sampling sites, and unique species were found in four sites. Each site showed an important and particular ant assemblage that differed from that of the other sites and the surrounding habitats in the cityscape. The results suggest that some sampling sites in the studied cityscape may contribute to the conservation of certain ant groups and invertebrate communities threatened by urban intensification. Ultimately, our findings support the importance of conserved areas and green spaces for the conservation of native species in and near urban areas.

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Preferencias entre cinco carbohidratos en Pheidole bilimeki (Hymenoptera: Formicidae)

Cited by 7 publications

References 34 publications

Survival and alterations in reproductive organs of the cotton boll weevil, Anthonomus grandis grandis, fed alternative food

Survival and alterations in reproductive organs of the cotton boll weevil, Anthonomus grandis grandis, fed alternative food

Cellular mechanisms of the lufenuron growth regulator in adults of Anthonomus grandis (Coleoptera: Curculionidae)

Diversity of Ants (Hymenoptera: Formicidae) in a Sub-Montane and Sub-Tropical Cityscape of Northeastern Mexico

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