Soils and seasonality influence the richness of gall-inducing insects and their host plants in a tropical dry forest

Silva, Juliana Santos; Santos, Geissy Anny Batista dos; Santos, Jean Carlos

doi:10.1016/j.jaridenv.2021.104651

Cited by 7 publications

(6 citation statements)

References 47 publications

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“…A higher incidence of galls was observed in the rainy season, similar to the other gall inventory areas of caatinga vegetation of the Bahia state (BRITO et al, 2018;SANTOS-SILVA et al, 2022). The predominance of galls in the rainy season can be explained by the greater availability of leaves, since this is the preferred organ for inducing galls because it contains a greater amount of meristematic tissues (ABRAHAMSON et al, 1997).…”

supporting

confidence: 66%

“…The richness of galling insects in the study area was greater than that found in other inventories of caatinga (Table 2S). Studies conducted in caatinga environments of the Northeastern region, adopting different sampling efforts, revealed a richness of 12 to 64 distinct morphotypes of gall induced on three to 18 host plant species (SANTOS et al, 2011;CARVALHO-FERNANDES et al, 2012;ALCÂNTARA et al, 2017;BRITO et al, 2018;SANTOS-SILVA et al, 2022). The number of gall morphotypes of caatinga vegetation is lower when compared to other vegetations studied.…”

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confidence: 99%

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Occurrence and characterization of insect galls in two areas of tropical dry forest (caatinga) in São Francisco River Natural Monument, Brazil

Melo,

Santos-Silva

2023

Entomol. Begin.

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The caatinga vegetation is an important natural laboratory for the study of how plants and gall-inducing insects interact in highly variable and stressful moisture regimes. Despite this, only five gall inventories have been conducted and its richness of inducing insects and host plants has been little known. To contribute to our knowledge of galls from caatinga habitats, we registered and characterized the macroscopic aspects of the galls, then identifed the plant hosts and their associated fauna in two areas of caatinga in São Francisco River Natural Monument (MONA). Nineteen morphotypes of galls were recorded on 11 plant belonging to eight genera and six host plant families. Of the total number of galls recorded, most occurred in the rainy season (n=13). Most of the galls are globoid (n=10), pilose (n=10), green (n=15), and isolated (n=12). Most of the gall-inducing insect species found belonged to Diptera (Cecidomyiidae). All morphotypes recorded in this study are the first ones recorded of galls and their host plants in MONA. We also recorded, for the first time, the occurrence of galls in the floral buds of Cnidoscolus obtusifolius Pohl ex Baill. (Euphorbiaceae), demonstrating the importance of conducting studies in areas not yet sampled in the Caatinga biome. It is expected that this study will stimulate future investigations, helping in the protection and conservation of this conservation area and consequently increasing our knowledge about its biodiversity.

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confidence: 66%

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confidence: 99%

Occurrence and characterization of insect galls in two areas of tropical dry forest (caatinga) in São Francisco River Natural Monument, Brazil

Melo,

Santos-Silva

2023

Entomol. Begin.

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“…The first factor is the difference in sampling effort, in other words, differences in sampling effort confound comparisons of species richness between local habitats or on large scales. For example, there are more than 32 inventories of galls for the Cerrado in Brazil (Cintra et al, 2020), while there are only ten one-off studies inventories for the Caatinga (Santos et al, 2011a;Carvalho-Fernandes et al, 2012;Luz et al, 2012;Costa et al, 2014a, b;Nogueira et al, 2016;Alcântara et al, 2017;Brito et al, 2018;Costa & Araújo, 2019;Santos-Silva et al, 2022). The second factor is the lower plant richness in the Caatinga; for Cintra et al (2021), the smaller number of plant species that make up the biome may explain the lower numbers of galls.…”

Section: Discussionmentioning

confidence: 99%

“…(e.g., Araújo et al, 2014;Campos et al, 2021), caatinga (e.g., Santos et al, 2011a;Carvalho-Fernandes et al, 2012), restinga (e.g., Maia, 2001Maia, , 2018, rocky fields (e.g., Carneiro et al, 2009b;Coelho et al, 2013a), dry tropical forest (Coelho et al, 2009), montane fields (Coelho et al, 2013b), and moist forest (e.g., Julião et al, 2005;Almada & Fernandes, 2011). There are still large gaps in our knowledge about the richness of gall-inducing insects of several phytophysiognomies of Northeastern Brazil, due to the large area and scattered studies con-centrated in two of its nine states, Bahia and Pernambuco (Santos et al, 2011b;Carvalho-Fernandes et al, 2012;Costa et al, 2014a, b;Nogueira et al, 2016;Alcântara et al, 2017;Brito et al, 2018;Santos et al, 2018;Silva et al, 2018;Vieira et al, 2018;Santos et al, 2019;Santana et al, 2020;Campos et al, 2021;Santos-Silva et al, 2022). Recently, Cintra et al (2021) compiled the occurrence of 100 host plant species and 156 morphospecies of gall-inducing insects for the Caatinga based on information available in the literature.…”

Section: Introductionmentioning

confidence: 99%

Insect galls of the Chapada Diamantina, Rio de Contas, Bahia, Brazil

Araújo,

Maia,

Carneiro

et al. 2024

Pap. Avulsos Zool.

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We surveyed insect galls and their host plants in areas of Caatinga and Cerrado in the municipality of Rio de Contas, in the extreme south of the Chapada Diamantina (Bahia state), between 703 and 1,897 m altitude, in order to contribute to the knowledge and conservation of local biodiversity. The survey was conducted in eight locations, adopting the random walking methodology for sampling, four in Caatinga and four in Cerrado, covering distinct phytophysiognomies (cerrado sensu stricto, gallery forest, shrubby caatinga, riparian forest, and rocky field). Eighty-four different insect gall morphotypes were reported, 48 (57.14%) of them on 42 host species in Cerrado and 36 (42.86%) on 24 host species in Caatinga. Most galls occurred on leaves (48.72%) and were globoid (53.76%), glabrous (52.92%), isolated (55.44%), usually one-chambered (61.32%), and brown (25.2%). The gall-inducing insects identified belonged to Lepidoptera (n = 1), Thysanoptera (n = 1), Hemiptera (n = 2), and Diptera (Cecidomyiidae) (n = 16). This was the first inventory of galls in the Chapada Diamantina, so all records are new for the region. We also recorded the first occurrences of galls on two Cerrado plant species and on two in the Caatinga. We found a significant positive correlation between gall richness and plant species richness, suggesting that radiation of gall-inducing insects may be associated with plant species richness.

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“…In comparison to mesic settings, xeric habitats have a wider variety of gall-forming insects (Fernandes and Price, 1988, Fernandes and Price, 1991, Santos-Silva et al, 2022. Recently, numerous gall midges were observed producing various plant galls in arid habitats of Egypt (Kamel, 2012, Kamel, 2021.…”

Section: Introductionmentioning

confidence: 99%

Mapping the Predicted Geographic Range of The Gall Former Schizomyia botellus (Diptera: Cecidomyiidae) under Influence of Climatic Factors in Arid Habitats.

Kamel

2022

Egyptian Academic Journal of Biological Sciences. A, Entomology

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In some localities of Sinai, the gall-midge Schizomyia botellus Dorchin & Freidberg, 2011 (Diptera: Cecidomyiidae) induce elongated galls on the axillary buds of Deverra triradiata Hochst. ex Boiss (Family: Apiaceae). The present work studies the relationship between S. botellus and D. tortuosa. Furthermore, the present study predicted the distribution of S. botellus in Sinai, Egypt by using Maxent modeling, in addition, to studying the influence of elevation and plant cover on its distribution.The predominance of S. botellus occurred from January to April and adults emerge from the gall at the beginning of April after pupation. Endoparasitoids of the genus Inostemma (Platygastridae)occasionally attack the larvae of S. botellus. The distribution of S. botellus in Sinai is affected positively by plant cover and negatively by elevation. The predicted highly suitable habitat of S. botellus is mainly concentrated inside the boundary of the St. Katherine protectorate in south Sinai. The most bioclimatic factors that had an impact on S. botellus' predicted range was the maximum temperature of the warmest month, isothermality, and the amount of precipitation in the coldest quarter. Our findings can help ecologists define sampling regions and create conservation plans for this type of environmental interaction.

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Soils and seasonality influence the richness of gall-inducing insects and their host plants in a tropical dry forest

Cited by 7 publications

References 47 publications

Occurrence and characterization of insect galls in two areas of tropical dry forest (caatinga) in São Francisco River Natural Monument, Brazil

Occurrence and characterization of insect galls in two areas of tropical dry forest (caatinga) in São Francisco River Natural Monument, Brazil

Insect galls of the Chapada Diamantina, Rio de Contas, Bahia, Brazil

Mapping the Predicted Geographic Range of The Gall Former Schizomyia botellus (Diptera: Cecidomyiidae) under Influence of Climatic Factors in Arid Habitats.

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