Ecology of the Brazilian Flea Frog Brachycephalus didactylus (Terrarana: Brachycephalidae)

Almeida-Santos, Marlon; Siqueira, Carla C.; Sluys, Monique Van; Rocha, Carlos Frederico Duarte

doi:10.1670/10-015.1

Cited by 25 publications

(16 citation statements)

References 39 publications

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“…Females of B. garbeanus were larger than males on average (female : male ratio 1.13, based on mean SVL), as has also been reported for the congeneric B. didactylus (Almeida-Santos et al 2011) and B. ephippium (Pombal et al 1994). The occurrence of sexual dimorphism with females larger than males seems to be the rule among anuran amphibians (Shine 1979).…”

Section: Discussionsupporting

confidence: 66%

“…In a study on the ecology of the smaller congener B. didactylus (SVL up to 10.7 mm) in two Atlantic Rainforest areas in Rio de Janeiro state, the frogs consumed 21 types of prey items, but the diet of the species was composed mainly of Acari and Collembola (Almeida- Santos et al 2011). Another smaller congener, B. brunneus (SVL up to 12 mm), had a diet composed of 15 types of invertebrates at two Atlantic Rainforest areas in Paraná state, though Acari represented over 60% of the consumed prey (Fontoura et al 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Information regarding the ecology of species of the genus Brachycephalus is restricted to reproductive behaviour of B. ephippium (Pombal et al 1994;Pombal 1999), to vocalization activity of Brachycephalus hermogenesi (Verdade et al 2008), to food habits of Brachycephalus brunneus (Fontoura et al 2011), and to estimated density, diet and some reproductive aspects of Brachycephalus didactylus (Almeida- Santos et al 2011). The present study provides information about some ecological aspects of B. garbeanus, specifically sexual dimorphism in body size, habitat use and feeding habits in an Atlantic Rainforest area of southeastern Brazil.…”

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confidence: 99%

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Ecological aspects of the pumpkin toadlet,Brachycephalus garbeanusMiranda-Ribeiro, 1920 (Anura: Neobatrachia: Brachycephalidae), in a highland forest of southeastern Brazil

Dorigo

Siqueira

Vrcibradic

et al. 2012

Journal of Natural History

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Ecological aspects of the pumpkin toadlet,Brachycephalus garbeanusMiranda-Ribeiro, 1920 (Anura: Neobatrachia: Brachycephalidae), in a highland forest of southeastern Brazil

Dorigo

Siqueira

Vrcibradic

et al. 2012

Journal of Natural History

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“…Siqueira et al 2006, Santana & Juncá 2007, Sabagh & Carvalho-e-Silva 2008, Ferreira & Teixeira 2009) involved species and populations living in lowland areas (e.g. Boquimpani-Freitas et al 2002, Siqueira et al 2006, Almeida-Gomes et al 2007, Ferreira & Teixeira 2009, Martins et al 2010, Almeida-Santos et al 2011, especially in the ombrophilous forest, with a marked lack of information on anurans feeding habits from highlands. Some studies have investigated the relationship and influence of the size of the frog and the size of prey ingested (e.g.…”

Section: Introductionmentioning

confidence: 99%

Diet of the toad Rhinella icterica (Anura: Bufonidae) from Atlantic Forest Highlands of southeastern Brazil

2012

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Abstract:In this study, we present some information of the regarding throphic niche from the anuran toad Rhinella icterica living in high altitudes above 2000 m a.s.l. from a habitat of the Atlantic Forest Biome -the Altitude Fields in the Itatiaia National Park. We found 150 prey items in toad stomachs, belonging to five prey types, as well as skin remains and some remains of plant material. The index of relative importance indicated that most important prey types were beetles and ants, these last composing 70% of the diet numerically and the trophic niche breadth (B) was 1.81. The relatively low diversity of prey types we recorded in the diet of R. icterica of Itatiaia and numerically dominated by ants suggests some preference for this item. We do not found significant relationship between the toad measurements with the preys' measurements. We concluded that R. icterica toads at the highlands of Itatiaia feeds on arthropods, mainly ants and coleopterans and that the high consumption of preys with relatively small and similar size as ants in the diet prevents an expected relationship among frog body or mouth size and prey volume and size. Resumo: No presente estudo apresentamos informações sobre o nicho trófico de uma espécie de anuro que reside em altitudes elevadas da Mata Atlântica. Descrevemos a dieta do sapo Rhinella icterica em altitudes acima de 2000 m em áreas de Campos de Altitude no Parque Nacional do Itatiaia. Encontramos 150 itens nos estômagos analisados de R. icterica, divididos em apenas cinco categorias de presa, além de vestígios da própria pele do anuro e restos vegetais. O índice de importância relativa indicou que besouros e formigas foram os itens mais importantes sendo que formigas representam 70% dos itens ingeridos. A amplitude de nicho trófico (B) foi de 1,81. O reduzido número de categorias alimentares, bem como o elevado número de formigas na dieta sugere que R. icterica apresente uma preferência por este item. Não encontramos nenhuma relação significativa entre as dimensões do anuro com as dimensões das presas. Concluímos que a população de R. icterica que habita os campos de altitude de Itatiaia alimentam-se de artrópodes, principalmente formigas e besouros. O alto consumo de presas com tamanho relativamente semelhante e pequeno como, por exemplo, formigas, impede uma relação esperada entre o tamanho do corpo do anuro ou o tamanho de sua mandíbula e tamanho e volume de presas. Palavras-chave: Amphibia, hábitos alimentares, campos de altitude, nicho trófico, sapo Cururu. 259Toad's diet of brazilian highlands

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“…1). Between didactylus and ephippium groups, syntopy has been reported in four localities: between B. didactylus and B. ephippium in the Reserva Ecológica Rio das Pedras, Rio de Janeiro (Carvalho-e- Silva et al 2008;Almeida-Santos et al 2011;; between B. didactylus and B. margaritatus in the Sacra Família do Tinguá, Rio de Janeiro (Izecksohn 1971;Pombal 2001;Ribeiro et al 2005;Alves et al 2006Alves et al , 2009; Silva et al (Siqueira et al 2011(Siqueira et al , 2013; and between B. hermogenesi and B. ephippium in the Reserva Florestal de Morro Grande, São Paulo (Dixo & Verdade 2006;Verdade et al 2008). Sympatry and possibly syntopy also between didactylus and ephippium groups was reported in the state of São Paulo in two localities (Tab.…”

Section: Resultsmentioning

confidence: 99%

Peer Review #1 of "Geographical and altitudinal distribution of Brachycephalus (Anura: Brachycephalidae) endemic to the Brazilian Atlantic Rainforest (v0.2)"

2016

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Mountains of the Brazilian Atlantic Forest can act as islands of cold and wet climate, leading to the isolation and speciation of species with low dispersal capacity, such as the toadlet species of the genus Brachycephalus. This genus is composed primarily by diurnal species, with miniaturized body sizes (< 2.5 cm), inhabiting microhabitats in the leaf litter of montane forests. Still little is known about the geographical distribution, altitudinal range, and ecological limits of most Brachycephalus species. In this study we review the available data on the geographical and altitudinal distribution of Brachycephalus based on occurrence records compiled from literature and museums, both for the genus as a whole and separately for the three recently proposed groups of species (ephippium, didactylus, and pernix). The final ensemble dataset comprised 333 records, 120 localities, 28 described species, and six undescribed ones. Species were recorded in six relief units, the richest of which being the Serra do Mar, with 30 species. When the Serra do Mar is subdivided into three subunits, Northern, Central and Southern Serra do Mar, the number of species increase from north to the south, with records of six, nine, and 16 species, respectively. We were able to estimate the extent of occurrence of nearly half of the described species, and the resulting estimates indicate that many of them show remarkably small ranges, some of which less than 50 ha. Brachycephalus species are present from sea level to roughly 1,900 m a.s.l., with the highest richness being found between 751 and 1,000 m a.s.l. (21 spp.). The species with the broadest altitudinal range

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Ecology of the Brazilian Flea Frog Brachycephalus didactylus (Terrarana: Brachycephalidae)

Cited by 25 publications

References 39 publications

Ecological aspects of the pumpkin toadlet,Brachycephalus garbeanusMiranda-Ribeiro, 1920 (Anura: Neobatrachia: Brachycephalidae), in a highland forest of southeastern Brazil

Ecological aspects of the pumpkin toadlet,Brachycephalus garbeanusMiranda-Ribeiro, 1920 (Anura: Neobatrachia: Brachycephalidae), in a highland forest of southeastern Brazil

Diet of the toad Rhinella icterica (Anura: Bufonidae) from Atlantic Forest Highlands of southeastern Brazil

Peer Review #1 of "Geographical and altitudinal distribution of Brachycephalus (Anura: Brachycephalidae) endemic to the Brazilian Atlantic Rainforest (v0.2)"

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