História natural de Leptodactylus mystacinus e Leptodactylus fuscus (Anura: Leptodactylidae) no Cerrado do Brasil Central

De-Carvalho, Crizanto Brito; Freitas, Evellyn Borges de; Faria, Renato Gomes; Batista, Renato de Carvalho; Batista, Cássio de Carvalho; Coelho, Welington Araújo; Bocchiglieri, Adriana

doi:10.1590/s1676-06032008000300010

Cited by 29 publications

(28 citation statements)

References 34 publications

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“…A atividade noturna de P. azurea foi concentrada principalmente no primeiro período da noite, entre as 20:00 e 21:00 h. É possível que as temperaturas nesse período sejam mais favoráveis à atividade de vocalização de algumas espécies, como sugerido por Pombal (1997) para Physalaemus cuvieri e também por De-Carvalho (2008) Tabela 3. Dieta de machos e fêmeas de Phyllomedusa azurea do município de Novo Gama, GO, Brasil.…”

Section: Discussionunclassified

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Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central

et al. 2008

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Ecological niche and aspects of the natural history of Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) in the Cerrado of Central Brazil. Biota Neotrop. 8(4): http://www.biotaneotropica. org.br/v8n4/en/abstract?article+bn02108042008Abstract: Aspects of the ecology and natural history of Phyllomedusa azurea were investigated in an area of Central Brazilian Cerrado between April, 2006, and February, 2007. Observations were conducted between 6:00 PM and 5:00 AM. The study focused on spatial, temporal, and trophic niches, morphometry and reproduction. Most animals were recorded vocalizing in places dominated by herbaceous vegetation and an open canopy. The main substrates used were bushes and trees, and animals were seen perched most often between 0.5 and 1.0 m of height. Spatial niche breadth was 2.91 and 3.83 for substrate and perch height, respectively. Most animal were sighted close to lentic water bodies, usually up to 0.50 m. It is possible that these characteristics are related primarily to the phylogeny of the genus and secondarily to the specific needs of the species and the local availability of resources. The bushes and trees were used by the species mainly as sites of vocalization and oviposition. Specimens of Phyllomedusa azurea was sighted most frequently between 8:00 PM and 9:00 PM. Estimated temporal niche breadth (activity period) was 4.68. Prolonged reproductive pattern was also observed predominantly in the months with higher temperature and higher humidity (September to February). The diet consisted of eleven items. The most important prey taxon for the females was Orthoptera (IVI = 63), whereas for the males, it was Araneae (IVI = 33). The breadths numeric and volumetric of the trophic niche, was respectively 1.80 and 1.16, for females, and 4.03 and 3.92, for males. Males and females differed in size (SVL) and mass, with the females being larger and heavier. The sizes of smaller reproductive individuals males and females were 34.64 and 40.33 mm, respectively. Differences in size may be related to different investments in reproduction by the two sexes. Keywords: ecology, niche, habitat use, time activity, diet, sexual dimorphism.FREITAS, E.B., DE-CARVALHO, C.B., FARIA, R.G., BATISTA, R.C., BATISTA, C.C., COELHO, W.A., BOCCHIGLIERI, A. Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central. Biota Neotrop. 8(4): http://www.biotaneotropica.org.br/v8n4/ pt/abstract?article+bn02108042008Resumo: Aspectos da ecologia e da história natural de Phyllomedusa azurea foram estudados em uma área de cerrado do Brasil Central, entre abril de 2006 e fevereiro de 2007. As observações foram realizadas entre as 18:00 e 5:00 h. Os aspectos investigados são referentes aos nichos espacial, temporal e trófico, morfometria e reprodução. A maioria dos animais vocalizou em locais com predominância do estrato herbáceo e de dossel aberto. Os principais substratos utilizados foram arbustos e árvores. Com relação às alturas de empoleiramento, os...

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Section: Discussionunclassified

“…Rodrigues et al 2003, Silva et al 2005, De-Carvalho et al 2008, Lucas et al 2008), há carência de informações básicas sobre a biologia da maior parte das espécies do Cerrado (Brites et al in press). Poucas informações (e.g.…”

Section: Introductionunclassified

Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central

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“…The high importance of agile arthropods such as beetles, crickets, grasshoppers, ants and spiders in the diet of species of the Leptodactylus genus indicate more sit-and-wait feeding strategy (Maneyro et al 2004, Rodrigues et al 2004, Sanabria et al 2005, De-Carvalho et al 2008, Solé et al 2009). However, in some of these studies there is great quantity of larvae or more sedentary groups, which suggest an opportunistic feeding Biota Neotrop.,vol.…”

Section: Discussionmentioning

confidence: 99%

“…Another important factor in the diet of frogs is energy demand, which may vary between seasons or sexes (Ryan 1988, Wells 2007. Individuals with higher energetic demands tend to feed in larger quantities (number of prey or volume), which may reflect on the composition of food items (Perry & Pianka 1997, De Carvalho et al 2008.…”

Section: Introductionmentioning

confidence: 99%

“…Although L. fuscus is relatively well studied, especially in reproductive aspects (Downie 1984, Martins 1988, OliveiraFilho et al 2005, De-Carvalho et al 2008, Lucas et al 2008), its diet is almost unknown along its wide distribution, with only one study in a Cerrado area in central Brazil (De-Carvalho et al 2008). The aim of this study is to describe the diet composition of L. fuscus in the Miranda sub-region, southeastern Pantanal (Brazil) and to answer the following questions: i) Are prey's maximum size and number of food items explained by the anuran's body size?…”

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Diet of Leptodactylus fuscus (Amphibia: Anura: Leptodactylidae) in the Pantanal of Miranda river, Brazil

Sugai¹,

Terra²,

Ferreira

2012

Biota Neotrop.

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Amphibians are usually generalist predators, and their diet is influenced by extrinsic (e.g. food availability) and intrinsic factors (e.g. body size and skull shape). This study aims to describe the diet of adult males and females of Leptodactylus fuscus in the Pantanal of the Miranda river and to answer the following questions: i) Are prey's maximum size and number of food items explained by the anuran's body size? ii) Are richness of morphospecies and number of food items explained by frog sex? iii) Is there diet overlap between male and female? We recorded 62 food items, belonging to seven orders of Arthropoda, and one individual of Annelida. The diet of L. fuscus was dominated by Orthoptera, followed by Coleoptera, Araneae, Hymenoptera, Blattaria, Hemiptera and Diptera. Frog's body size did not influence prey size or number of food items consumed. The number of prey and richness of morphospecies did not differ between males and females. There was low diet overlap between the sexes. Our results provide evidence for the opportunistic and generalist feeding behavior of L. fuscus. Resumo: Anfíbios são, em geral, predadores generalistas cuja dieta é influenciada por fatores extrínsecos (e.g. disponibilidade de alimento) e intrínsecos (e.g. tamanho do corpo e formato do crânio). Este estudo tem como objetivo descrever a dieta de machos e fêmeas adultos de Leptodactylus fuscus no Pantanal do rio Miranda e responder as seguintes perguntas: i) O tamanho máximo da presa e o número de itens alimentares são explicados pelo tamanho corpóreo do anuro? ii) A riqueza de morfoespécies e número de itens alimentares são explicados pelo sexo do anuro? iii) Existe sobreposição de dieta entre macho e fêmea? Registramos 62 itens alimentares distribuídos por sete ordens de Arthropoda e um indivíduo de Annelida. A dieta de L. fuscus possui dominância de Orthoptera, seguida por Coleoptera, Araneae, Hymenoptera, Blattaria, Hemiptera e Diptera. O tamanho corpóreo do anuro não influenciou o tamanho da presa ou o número de itens alimentares consumidos. O número de presas e riqueza de morfotipos não diferiu entre machos e fêmeas. Houve baixa sobreposição alimentar entre os sexos. Os resultados mostram evidências de comportamento alimentar oportunístico e generalista para L. fuscus. Palavras-chave: planície pantaneira, itens alimentares, ecologia trófica.

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Lead and cadmium accumulation in anuran amphibians of a permanent water body in arid Midwestern Argentina

Jofré

Antón

Caviedes‐Vidal

2012

Environ Sci Pollut Res

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Amphibians of the Embalse La Florida accumulate Cd and Pb. Between and within species, differences were detected in Cd and Pb concentrations. Differences in metal concentrations between species, metals, and individuals collected on shores of the Embalse La Florida with different contamination, were detected. Therefore, it is crucial to implement adequate policies to protect amphibians from the accelerated urban development experienced in this location.

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História natural de Leptodactylus mystacinus e Leptodactylus fuscus (Anura: Leptodactylidae) no Cerrado do Brasil Central

Cited by 29 publications

References 34 publications

Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central

Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central

Diet of Leptodactylus fuscus (Amphibia: Anura: Leptodactylidae) in the Pantanal of Miranda river, Brazil

Lead and cadmium accumulation in anuran amphibians of a permanent water body in arid Midwestern Argentina

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