Diet of Epipedobates flavopictus (Anura: Dendrobatidae) in a Neotropical Savanna

Biavati, Graziela M.; Wiederhecker, Helga C.; Colli, Guarino R.

doi:10.1670/30-04a

Cited by 84 publications

(65 citation statements)

References 28 publications

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“…In other biomes, such as the Cerrado and the Amazonia, the number of preys identified to this taxonomic level and consumed by leaf litter frogs, also seemed to be around 22 (e.g. Biavati et al 2004, Ortega et al 2005. …”

Section: Resultsmentioning

confidence: 99%

Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil

Coco

Júnior

Fusinatto

et al. 2014

An. Acad. Bras. Ciênc.

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Haddadus binotatus is an endemic anuran of the Brazilian Atlantic Forest and currently, there is no information about the diet of this species. We analyzed the diet of two populations of this anuran in two states in southeast Brazil. Samplings were carried out in 2004 in the state of Rio de Janeiro and in 2009 and 2010 in the state of Espírito Santo. Haddadus binotatus presented a rich diet composition, preying 19 prey types. Orthoptera, Coleoptera, and Blattodea were the most important preys in the Rio de Janeiro population, and Orthoptera, Araneae and Hemiptera were the most important in the Espírito Santo population. The diet composition differed numerically between the two localities, but not in terms of volume, which can reflect local differences in the prey availability in the two habitats. The jaw width limited the size of prey, which is expected for predators who swallow the preys without chewing. The proportion of individuals with empty stomachs was higher in the Rio de Janeiro population (39.2%) than in the Espírito Santo population (17.9%), suggesting that the former could be in a lower energy balance. The females of the species were larger than the males, which may result from the production of larger eggs.

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Section: Resultsmentioning

confidence: 99%

Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil

Coco

Júnior

Fusinatto

et al. 2014

An. Acad. Bras. Ciênc.

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“…Arthropods are very important components of the amphibian diet (Santos et al, 2004) and among them, centipedes are constantly preyed on for many vertebrate groups (Biavati et al, 2004;Losos et al, 1991;Stancampiano and Caire, 1995). On the other hand, several arthropod species are important predators of vertebrates (Carpenter and Gillingham, 1984;McCormick and Polis, 1982).…”

mentioning

confidence: 99%

Treefrog Dendropsophus elegans (Wied-Neuwied, 1824) (Anura: Hylidae) as a meal to Otostigmus tibialis Brölemann, 1902 (Chilopoda: Scolopendridae) in the Tropical Rainforest in southeastern Brazil

2007

Braz. J. Biol.

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“…Analytical results of productive activity and histology of the testes and ovaries were determined, and some of these D. melanostictus specimens were preserved in 70% ethanol and deposited in the herpetological collection of the Department of Biology, College of Education, Hue University, Vietnam. We recorded the longest and shortest diameters, and calculated the testicular and ovarian volumes using the formula for a prolate spheroid (Caldwell and Vitt 1999;Magnusson et al 2003;Biavati et al 2004):…”

Section: Sexual Maturity and Reproductive Activitymentioning

confidence: 99%

Reproductive activity and advertisement calls of the Asian common toad Duttaphrynus melanostictus (Amphibia, Anura, Bufonidae) from Bach Ma National Park, Vietnam

Ngo

2013

Zool. Stud.

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Background: We examined differences in reproductive activities and intraspecific variations in advertisement calls of Duttaphrynus melanostictus (Schneider, 1799) that lives in a tropical region of central Vietnam. The snout-vent length (SVL) of sexually mature males ranged from 50.2 to 70.3 mm, while that of females ranged from 65.2 to 97.3 mm. Histological analyses of testes revealed that sperm was not present throughout the year, indicating discontinuous reproductive activity for adult males. Adult females were captured year-round, but reproductive females were observed only during months of the auxiliary rainy season (mainly April to July), indicating that females reproduce seasonally. We also estimated levels of within-male variation of each call property and the influences of the ambient temperature, humidity, and the SVL of calling males on acoustic features. Results: The call rate and pulse rate showed intermediate levels of variation, whereas the dominant frequency and call duration were the most stereotyped properties. One-way analyses of variance for six acoustic properties showed that the call rate, pulse rate, and rise time significantly differed (p < 0.05) among localities. Advertisement calls were a series of groups of 56 to 244 (145 ± 54) pulses with an average call duration of 26.722 s, an average pulse rate of 11.69 pulses/s, and an average dominant frequency of 1.293 kHz. The results of the multiple regressions for possible effects of temperature, humidity, and SVL on the six acoustic properties indicated that the dominant frequency, pulse rate, call duration, and rise time were positively significant. Conclusions:In Bach Ma National Park, when air temperature in the recording area decreased to <16.6°C, and advertisement calls of adult males virtually ceased in all three populations.

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Diet of Epipedobates flavopictus (Anura: Dendrobatidae) in a Neotropical Savanna

Cited by 84 publications

References 28 publications

Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil

Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil

Treefrog Dendropsophus elegans (Wied-Neuwied, 1824) (Anura: Hylidae) as a meal to Otostigmus tibialis Brölemann, 1902 (Chilopoda: Scolopendridae) in the Tropical Rainforest in southeastern Brazil

Reproductive activity and advertisement calls of the Asian common toad Duttaphrynus melanostictus (Amphibia, Anura, Bufonidae) from Bach Ma National Park, Vietnam

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