Comparing galling insect richness among Neotropical savannas: effects of plant richness, vegetation structure and super-host presence

Araújo, Walter Santos de; Scareli-Santos, Claudia; Guilherme, Frederico Augusto Guimarães; Cuevas‐Reyes, Pablo

doi:10.1007/s10531-013-0474-8

Cited by 67 publications

(104 citation statements)

References 38 publications

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“…Qualea parviflora Mart. hosted five of the six morphotypes of galls of that genus, confirming the results recently reported by Araújo et al (2013), who classified the genus Qualea as a "superhost" of insect galls.…”

Section: Resultssupporting

confidence: 89%

“…Mendonça (2007) found 19 and 15 gall morphotypes on host plants of the genera Mikania (Asteraceae) and Eugenia (Myrtaceae), respectively. Araújo et al (2013) recently reported 19 gall morphotypes on host plants of the genus Qualea (Vochysiaceae) occurring in diverse areas of the cerrado. In the present study, the number of gall morphotypes was found to be highest (n = 7) for host plants of the genus Styrax (Styracaceae).…”

Section: Resultsmentioning

confidence: 99%

“…In the present study, the number of gall morphotypes was found to be highest (n = 7) for host plants of the genus Styrax (Styracaceae). The high diversity of galls on host plants of these genera can have a considerable influence on the local diversity of galling insects (Oyama et al 2003;Araújo et al 2012;Araújo et al 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Certain characteristics of those families might increase the species richness of the population of galling insects. For example, the size of the plant family (Fernandes 1992;Mendonça 2007;Araújo 2011) and the geological age of the family (Fernandes 1992), as well as the presence of species or genera that present "superhost" phenotypes (Vedtman & McGeoch 2003;Araújo et al 2013), can be determinants of galling insect species richness. The systematic investigation of the composition of the host plant communities is fundamental to demonstrating the importance of each of these factors.…”

Section: Introductionmentioning

confidence: 99%

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Host plants of insect-induced galls in areas of cerrado in the state of Goiás, Brazil

et al. 2013

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Most studies of the interactions between plants and gall-inducing (galling) insects have focused on the entomological aspects, few having addressed the diversity of galls in relation to the characteristics of the host plants. The objective of this study was to analyze the richness and composition of the community of host plants of galls in areas of cerrado (savanna) in the state of Goiás, Brazil. To that end, we inventoried the galls in different regions of the state and within various types of vegetation formations, between 2005 and 2007. We registered 80 gall morphotypes in 58 species of host plants (30 families and 47 genera). The host family with highest diversity of galls was Fabaceae, with 17 morphotypes, followed by Styracaceae, with seven. In the cerrado, Fabaceae is the plant family with the highest number of species. Our results show that the composition of a plant community is a determinant of the distribution of galling insects. At the family or genus level, the presence of certain taxa increases the species richness of the population of galling insects.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Host plants of insect-induced galls in areas of cerrado in the state of Goiás, Brazil

et al. 2013

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“…Super-host taxa are plant genera or species that exhibit a high intrinsic diversity of galling insects (Veldtman & McGeoch, 2003;Araújo et al, 2013). Some vegetation types can have an increment in the insect gall richness due to occurrence of few super-hosts because they present a great number of gall morphospecies (Araújo et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Distribution of insect galls in xeric and mesic habitats of Floresta Nacional de Silvânia, Brazil

Bergamini

Santos

et al. 2017

Iheringia, Sér. Zool.

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ABSTRACT. We investigated the insect gall distribution along savanna (xeric) and forest (mesic) vegetation in the Floresta Nacional de Silvânia, Goiás, Brazil. We tested if the insect gall diversity is higher in the xeric vegetation than in the mesic vegetation, as predicted by the hygrothermal stress hypothesis. The insect gall fauna was surveyed between December 2009 and June 2010 in two transects established each vegetation type. In total we found 186 insect gall morphotypes, distributed on 35 botanical families and 61 plant species. Cecidomyiidae (Diptera) induced the most insect galls (34.1%), and the plant family Fabaceae had the greatest richness of insect gall morphotypes (18). We recorded 99 insect gall morphotypes in the forest and 87 morphotypes in the savanna vegetation, being that none insect gall morphotype occurred in both habitats. We found that the insect gall richness and abundance did not diff er between forest and savanna transects. On the other hand, the estimated insect gall richness was higher in the forest than in the savanna. Our fi ndings contrary the hygrothermal stress hypothesis possibly because forest habitats have higher plant architecture complexity and occurrence of super-host taxa than the savanna habitats.KEYWORDS. Cecidomyiidae, Cerrado, Fabaceae, plant-insect interaction.RESUMO. Distribuição de galhas de insetos em habitats xéricos e mésicos da Floresta Nacional de Silvânia, Brasil. Foi inventariada a distribuição de galhas de insetos ao longo de vegetações savânicas (xéricas) e fl orestais (mésicas) na Floresta Nacional de Silvânia, Goiás, Brasil. O estudo testou se a diversidade de insetos galhadores é maior na vegetação xérica do que na vegetação mésica, como predito pela hipótese do estresse higrotermal. A fauna de galhadores foi amostrada entre dezembro de 2009 e junho de 2010 em dois transectos estabelecidos em cada tipo de vegetação. No total foram encontrados 186 morfotipos de galhas de insetos, distribuídos em 35 famílias e 61 espécies de plantas. Cecidomyiidae (Diptera) induziu a maioria das galhas de insetos (34,1%) e a família Fabaceae teve a maior riqueza de morfotipos de galhas (18). Foram registrados 99 morfotipos de galhas de insetos na fl oresta e 87 morfotipos no cerrado, sendo que nenhum morfotipo de galha ocorreu em ambos os habitats. A riqueza e a abundância de galhas de insetos não diferiram entre os transectos de fl oresta e cerrado. Por outro lado, a riqueza estimada de galhas de insetos foi maior na fl oresta do que no cerrado. Esses resultados contrariam a hipótese do estresse higrotermal possivelmente devido aos habitats fl orestais apresentarem maior complexidade arquitetônica das plantas e ocorrência de táxons super-hospedeiros do que os hábitats savânicos.PALAVRAS-CHAVE. Cecidomyiidae, Cerrado, Fabaceae, interação inseto-planta.

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Population ecology and spatial synchrony in the abundance of leaf gall wasps within and among populations of valley oak (Quercus lobata)

et al. 2020

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What factors drive population variability through space and time? Here we assess patterns of abundance of seven species of gall wasps in three genera occurring on the leaves of valley oaks (Quercus lobata) at 10 sites throughout this species' statewide range in California, from 2000 to 2006. Our primary goals were to understand the factors driving variability in gall abundance and to assess the extent of spatial synchrony in gall wasp communities at both large and small geographic scales. On the large, statewide scale, there was significant site‐to‐site variation in gall abundance, driven in all cases primarily by differences in mean maximum seasonal temperatures, and lesser year‐to‐year variation. In contrast, on the small, local scale, differences were more pronounced from year to year than from tree to tree, and were to some extent correlated with differences in acorn production, suggesting an interaction with the reproductive effort of hosts. Significant spatial synchrony was detected, particularly at the statewide scale, but in no case did synchrony decline significantly with distance, despite sites being up to 741 km apart. Variation in spatial synchrony was correlated with a number of exogenous factors, including seasonal weather conditions, the acorn crop at the statewide scale and soil phosphorus availability at the local scale; however, most variation in spatial synchrony in our analyses remained unexplained.

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Comparing galling insect richness among Neotropical savannas: effects of plant richness, vegetation structure and super-host presence

Cited by 67 publications

References 38 publications

Host plants of insect-induced galls in areas of cerrado in the state of Goiás, Brazil

Host plants of insect-induced galls in areas of cerrado in the state of Goiás, Brazil

Distribution of insect galls in xeric and mesic habitats of Floresta Nacional de Silvânia, Brazil

Population ecology and spatial synchrony in the abundance of leaf gall wasps within and among populations of valley oak (Quercus lobata)

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