Diversity of ants and mites in the diet of the Brazilian frog Chiasmocleis leucosticta (Anura: Microhylidae)

Silva, Lopes, Mariana; Bovendorp, Ricardo S.; Moraes, Gilberto José de; Percequillo, Alexandre Reis; Bertoluci, Jaime

doi:10.1590/1676-0611-bn-2017-0323

Cited by 8 publications

(4 citation statements)

References 17 publications

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“…Similar results, with ants being the most consumed prey, were found for different species of the genus as Chiasmocleis capixaba (Van Sluys et al 2006), C. albopunctata (Araújo et al 2009), C. alagoanus (Leite-Filho et al 2017), C. leucosticta (Lopes et al 2017), C. hudsoni and C. shudikarensis (Silva et al 2019). Also, within Microhylidae, similar patterns were found for other species of this family, always revealing large frequencies of occurrence and high relative importance indices for Formicidae (Erftemeijer and Boeadi 1991;Hirai and Matsui 2000;Solé et al 2002;Berazategui et al 2007).…”

Section: Discussionsupporting

confidence: 65%

Diet of Chiasmocleis cordeiroi Caramaschi and Pimenta, 2003 from the Atlantic Rainforest in southern Bahia, Brazil

Castro

Mira-Mendes

Solé

2020

Zoology and Ecology

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We studied the diet of a Chiasmocleis cordeiroi population in a fragment of the Atlantic Forest in the state of Bahia, Brazil. Frogs were collected at night after an explosive breeding event and were transferred to the lab where they were measured, weighed and had their stomach contents retrieved following a stomach flushing protocol. Individuals were later released back into the pond from which they had been collected. Stomach contents were measured and identified to the lowest possible taxonomic level. The most important prey category in the diet of C. cordeiroi was Hymenoptera (Formicidae), as has been already observed for other microhylids. The large number of prey items in the stomach and the low niche amplitude suggest that C. cordeiroi is a specialist using an active foraging strategy to detect its prey.

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Section: Discussionsupporting

confidence: 65%

Diet of Chiasmocleis cordeiroi Caramaschi and Pimenta, 2003 from the Atlantic Rainforest in southern Bahia, Brazil

Castro

Mira-Mendes

Solé

2020

Zoology and Ecology

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“…Trueb and Gans (1983) suggested that, at least in Rhinophrynus (which lacks mentomeckelians), the contraction of the supplementary elements (referred by them as m. mandibulomentalis) would raise the floor of the mouth, contributing to the lingual protraction. It is interesting to note that in both Rhinophrynidae, and Brevicipitidae + Hemisotidae (the two groups where the anterolateral supplementary elements are more hypertrophied, forming a fusiform belly) the protraction of the tongue occurs through "hydrostatic extension", a highly sophisticated mechanism that is present only in these families and in Microhylidae, most of which are specialized myrmecophages (Lopes et al, 2017;Channing and R€ odel, 2019;Sah et al, 2019). This mechanism consists of a relatively slow but highly accurate projection of the tongue enabled by a unique muscle, the m. genioglossus dorsoventralis, only present in these clades (Trueb and Gans, 1983;Nishikawa, 2000;Meyers et al, 2004;Monroy and Nishikawa, 2009).…”

Section: A Functional Enigmamentioning

confidence: 99%

Evolution of the strikingly diverse submandibular muscles in Anura

2021

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The most ventral muscles of the head (the mm. submentalis, intermandibularis, and interhyoideus) provide support to the gular region and lift the buccal floor during ventilation and feeding. These muscles show limited variation in most gnathostomes, but in Anura they exhibit a surprising diversity. The few studies that have explored this character system highlighted its potential as a source of phylogenetic information. In this paper we explored the diversity of this character system studying specimens of 567 anuran species and reviewing published data to cover a total of 1321 species, belonging to 53 of the 54 currently recognized anuran families, as well as caudates and caecilians. We defined 27 discrete characters including the number of muscle bellies, supplementary layers, hypertrophy and diversity of elastic fibres, and pigmentation, among others, and optimized them on a comprehensive phylogenetic hypothesis. We recognized 223 unambiguously optimized synapomorphies for numerous clades on different scales, including three for Anura and many for suprafamiliar clades with poor phenotypic support. Finally, we discussed the evolution of this highly diverse character system, including homology, development, and its functional role in vocalization and feeding. Interestingly, the striking levels of variation in some structures contrast with the amount of phylogenetic inertia, allowing us to recognize several general patterns. Supplementary elements of the m. intermandibularis evolved first as broad layers occuring in more than half of extant anuran species and then concentrated forming discreet bellies in several clades. The anterior portion of the gular region is not sexually dimorphic, and is likely related to ventilation and tongue protraction. Conversely, the diversity of the m. interhyoideus is strongly linked to vocal sacs, which are present only in adult males, suggesting the presence of two independent modules.

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“…Most anurans are considered generalist consumers because they feed on a wide prey ran e D e man and r eb o and dder o ever t ere is evidence t at some of them have a narrow diet, showing a specialized consumption on certain biological groups (Agudelo-Cantero et al 2015, Lopes et al 2017, Araujo-Vieira et al 2018. Differences in the diet composition have been related to different factors, which may be extrinsic, such as the site traits (Bonansea and Vaira 2007), competition (Duellman and Trueb 1994), or seasonality (Berazategui et al 2007), which can offer different food resources, or intrinsic factors, s c as onto enetic c an es itfie d and Donnelly 2006), reproductive behavior, and sex (Lamb 1984, Maneyro et al 2004, which in ence t e n tritiona re irements of an rans Both extrinsic and intrinsic factors are related to the use of food resources and the variation in the diet composition between and within species (Lima and Magnusson 2000).…”

Section: Introductionmentioning

confidence: 99%

Feeding habits of Lithobates megapoda (Anura: Ranidae), a threatened leopard frog used for human consumption, in Lake Chapala, Mexico

et al. 2021

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The Big-footed Leopard Frog (Lithobates megapoda) is a threatened and endemic species from western Mexico. This species has aquatic habits and it is distinguished by its large size, particularly by the length of its legs, reason for which it is captured for human consumption. Also, knowledge about its natural history is scarce and incomplete. In this study, we analyzed the composition of the diet of L. megapoda on the shore of Lake Chapala, the largest lake in Mexico. A total of 69 adult individuals were collected lifeless in fishing nets, during the rainy season (June-October), of which 48 had stomach contents. A total of 96 prey items were identified, which correspond to 13 prey categories. Fish constituted the most dominant prey category in the diet in terms of number, volume, frequency of occurrence, and relative importance. No significant differences were found in the consumption by prey type (aquatic or terrestrial). However, the aquatic preys had a greater relative importance and were more voluminous than the terrestrial ones. The diversity of prey categories, in terms of prey volume, indicates males may have a higher dietary diversity than females, but we not evaluated possible bias. In addition, a significant effect was found in the interaction of size (SVL) of frogs with the average of prey volume. Females (that are larger than males) consumed prey within a wide volume range and, the larger they are, more voluminous are prey. In this way it is possible that intraspecific competition for trophic resources in the environment is reduced. This study helps us understand the trophic ecology of L. megapoda, a frog species that plays an important role in the food web where it lives, as a predator feeding on aquatic and terrestrial organisms.

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Diversity of ants and mites in the diet of the Brazilian frog Chiasmocleis leucosticta (Anura: Microhylidae)

Cited by 8 publications

References 17 publications

Diet of Chiasmocleis cordeiroi Caramaschi and Pimenta, 2003 from the Atlantic Rainforest in southern Bahia, Brazil

Diet of Chiasmocleis cordeiroi Caramaschi and Pimenta, 2003 from the Atlantic Rainforest in southern Bahia, Brazil

Evolution of the strikingly diverse submandibular muscles in Anura

Feeding habits of Lithobates megapoda (Anura: Ranidae), a threatened leopard frog used for human consumption, in Lake Chapala, Mexico

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