Does environmental diversity affect hymenopteran galling insects and their natural enemies on Caryocar brasiliense trees (Caryocaraceae)?

Demolin-Leite, Germano Leão; Santos-Veloso, Ronnie Von Dos; Alvarenga-Soares, Marcus; Fernandes, Geraldo Wilson; Zanuncio, José Cola; Alves-Oliveira, Nicole; Junior, Valdeir Celestino dos Santos

doi:10.25100/socolen.v46i1.8546

Cited by 3 publications

(6 citation statements)

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“…(Tetranychidae), and Histiostoma sp. (Histiostomidae) are predators of the leaves and fruits (Leite et al, 2020). Hence, these trees are left in the Cerrado areas even after being converted to pasture, urban or agricultural areas, with a common scenario of isolated plants in the agro-urban landscape (Demolin- Leite et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Meio Ambiente, Sustentabilidade e Tecnologia – Volume 7

2021

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Section: Discussionmentioning

confidence: 99%

Meio Ambiente, Sustentabilidade e Tecnologia – Volume 7

2021

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“…The distribution of galling insects and their galls, predators, parasitoids, and percentage of leaves infested with galls (three leaflets/leaf) was recorded by examining 12 fully expanded leaves of the 36 C. brasiliense trees (one leaf in each vertical and horizontal stratifications of canopy) (Demolin- Leite et al, 2020). Sampling was performed in the morning (7:00-11:00 AM) by direct visual observation every month (Horowitz, 1993).…”

Section: Methodsmentioning

confidence: 99%

“…Gall size was measured by using a digital caliper (accurate to nearest 0.1mm). Leaves were scanned and the leaf area was calculated using Sigma Scan Pro software, and then we calculated the area of each leaf that was occupied by each galling species as a rough indication of herbivory (Demolin- Leite et al, 2020). Galling insects cause a large impact on the host plant because nutrients are moved from distant structures to the gall tissue (Fernandes, 1987), and hence this represents solely the local area impacted.…”

Section: Methodsmentioning

confidence: 99%

“…The abundance was obtained with the average of each species/tree, the diversity using the Hill formula and the species richness using the Simpson index (Hill, 1973;Jost, 2006;Begon et al, 2007;Lazo et al, 2007). Caryocar brasiliense leaves in Cerrado, pasture, and urban areas differed in many galling insect and parasitoid community attributes (Demolin- Leite et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

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Changes in galling insect community on Caryocar brasiliense trees mediated by soil chemical and physical attributes

et al. 2022

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The nutrient stress hypothesis predicts that galling insects prevail on host plants growing in habitats with soils of low nutritional quality. Caryocar brasiliense (Caryocaraceae) is host to four different leaf-galling insects. These insects have the potential to cause a reduction in the production of C. brasiliense fruits, an important source of income for many communities in Brazil. We studied the effects of soil physical and chemical characteristics on the abundance, species richness, and diversity of galling insects and their natural enemies on C. brasiliense trees growing under three different soil conditions. Our data corroborate the hypothesis that in nutritionally poor (e.g., lower phosphorus content) and worse physical textures (e.g., sandy) soils, host plants support higher species richness and diversity of galling insects. However, the abundance of Eurytoma sp. (the most common gall in C. brasiliense), was correlated with a higher phosphorus concentration in the soil (better nutritional condition). The percentage of galled leaflets and the area of leaflets occupied by Eurytoma sp galls were higher in the more fertile soil. In this soil, there was greater abundance, species richness, and diversity of parasitoids of Eurytoma sp. (e.g., Sycophila sp.) and predators (e.g., Zelus armillatus). Our data indicate the importance of habitat quality in the composition of the galling insect community and the impact of soil properties in mediating the distribution of these insects in C. brasiliense.

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“…The high relative frequency of Eurytoma sp., a unique galling insect, on C. brasiliense leaves indicates the great potential of this insect to become a pest in commercial C. brasiliense plantations causing premature abscission of leaves from this plant (Leite et al, 2020). The specific relative frequency of Tetranychus sp.1 (phytophagous mite) and A. gossypii (phytophagous Hemiptera) was also the highest of their groups and both are pests of C. brasiliense (Leite et al, 2006b(Leite et al, , 2021.…”

Section: Relative Frequencymentioning

confidence: 99%

Potential interactions between herbivorous arthropods and of their natural enemies on Caryocar brasiliense (Caryocaraceae) trees

Demolin-Leite

Veloso

Soares

et al. 2021

Rev. Bras. entomol.

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The study of arthropod communities foraging on monocultures of native plants (e.g. Caryocar brasiliense) in biodiversity hotspots (e.g. Brazilian Cerrado) is important to understand the processes driving their performance. This study evaluated the possible interactions between galling herbivores, free-feeding arthropods, and of their natural enemies on C. brasiliense trees, in an orchard (monoculture). The possible competition observed were: i) between galling insects with defoliators and phytophagous mites, ii) between sucking insects, iii) between phytophagous mites and, iv) between Aphis gossypii (Hemiptera: Aphididae) with Histiostoma sp. (Acari: Histiostomidae) on C. brasiliense trees. Numbers of predators and prey, parasitoids and hosts, and predators and parasitoids were directly related among them. The competitive interactions between herbivorous predator and parasitoid may reduce Eurytoma sp. (Hymenoptera: Eurytomidae) populations, a potential pest of C. brasiliense. The predator Zelus armillatus (Hemiptera: Reduviidae) and the parasitoids Sycophila sp. (Hymenoptera: Eurytomidae) and Ablerus magistretti (Hymenoptera: Aphelinidae) are important to determine the numbers of Eurytoma sp. and of its galls. These natural enemies may be important to control this galling insect on C. brasiliense trees. The arthropod competition affected their guild associated to C. brasiliense trees.

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Does environmental diversity affect hymenopteran galling insects and their natural enemies on Caryocar brasiliense trees (Caryocaraceae)?

Cited by 3 publications

References 20 publications

Meio Ambiente, Sustentabilidade e Tecnologia – Volume 7

Meio Ambiente, Sustentabilidade e Tecnologia – Volume 7

Changes in galling insect community on Caryocar brasiliense trees mediated by soil chemical and physical attributes

Potential interactions between herbivorous arthropods and of their natural enemies on Caryocar brasiliense (Caryocaraceae) trees

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