Environmental Factors Affecting Calling Activity of a Tropical Diurnal Frog (Hylodes phyllodes: Leptodactylidae)

Hatano, F. H.; Rocha, Carlos Frederico Duarte; Sluys, Monique Van

doi:10.1670/0022-1511(2002)036[0314:efacao]2.0.co;2

Cited by 68 publications

(49 citation statements)

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“…As in other diurnal frogs, the daily calling pattern of E. flavopictus may be related to moderate temperatures and higher humidity (Wells 1980a, 1980b, Navas 1996, Narvaes 1997, Heying 2001, Hatano et al 2002; although we did not measure light intensity, it seems that this factor was of secondary importance, since vocal activity occurred during full-night hours. We predict that on rainy mid-summer days the call activity may occur throughout the day.…”

Section: Discussionmentioning

confidence: 81%

“…Environmental variables such as humidity, temperature and photoperiod may determine anuran breeding period (Navas 1996, Navas & Bevier 2001, Hatano et al 2002. As in other diurnal frogs, the daily calling pattern of E. flavopictus may be related to moderate temperatures and higher humidity (Wells 1980a, 1980b, Navas 1996, Narvaes 1997, Heying 2001, Hatano et al 2002; although we did not measure light intensity, it seems that this factor was of secondary importance, since vocal activity occurred during full-night hours.…”

Section: Discussionmentioning

confidence: 91%

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Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil

2006

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Epipedobates flavopictus is a diurnal, aposematic dendrobatid with a wide distribution in seasonal wet tropical regions of Brazil. We describe the daily period of vocalization, advertisement call, courtship behavior, and tadpole of E. flavopictus from a previously unknown population in southern Goiás and compare theses features with that of other populations. Studies were carried out in November (2004) and February (2005). We counted the number of calling males and duration of calling bouts in the morning and evening periods. The advertisement call was recorded with a digital recorder. Tadpole description was based on specimens collected in pools. Males called from well-illuminated sites such as rocky fields, rain channels, and borders of riverine forests. In November, males vocalized daily during two distinct periods, between 04:30 h and 10:00 h and between 16:30 h and 20:00 h. Morning temperature varied between 20-23ºC and humidity from 79-89%; during evening varied between 24-27ºC and 54-82%. In the middle of the day, temperature reached 36ºC and humidity 40%. During the morning, call activity was almost uninterrupted, in the evening calling bouts lasted around 9 min. In February, even with the occurrence of rainfall and temperatures similar to that of November no frog vocalized. The advertisement call is composed by a single note with 7-8 pulses with frequency ascending slightly from 3.20 to 4.05 kHz. Note duration was 144 ms, and between note intervals is 292 ms. Notes are given at a rate of 139 per minute. Upon observing the female, the male began to emit courtship call. The female approached the male and touched him laterally with her snout. The male moved forward and raised his hindquarters by stretching his hind legs. While leading the female, the male continued to give courtship and advertisement calls. The male clasped the female in axillary amplexus, and the pair entered a hole in a bank. The female deposited eggs on the surface of the soil, spreading them in groups. The egg clutches had eggs in at least two developmental stages, recently deposited and with embryos. Tadpoles were found in small, shallow rocky pools along a permanent stream, in well-illuminated sites at the forest border. The tadpole had the dorsal fin arched, not extending onto body. E. flavopictus appears to be unique among dendrobatids by using open areas subject to high temperatures and low humidity. Reproductive activity of the species ends before the end of the rainy season, possibly to avoid loss of tadpoles during months with unpredictable rainfall. The studied call had more notes and shorter between-call intervals than those described from other populations. The free-living tadpoles we describe differ from those of other populations by having the dorsal fin reduced.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 91%

Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil

2006

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“…Hylodes cf. phyllodes, Crossodactylus gaudichaudii, Thoropa miliaris, Hyalinobatrachium eurygnathum, Scinax trapicheiroi (B. Lutz 1954), and Aplastodiscus albofrenatus are restricted to the areas along hillside forest streams, confirming a high degree of association of these species to these habitats ( Izecksohn & Carvalho-e-Silva 2001, Hatano et al 2002, Carvalhoe-Silva & Carvalho-e-Silva 2005. On Marambaia, T. miliaris was not found on coastal rock faces feeding on marine organisms, as has been reported for other localities (Sazima 1970), but it is dependent on films of water for its reproduction .…”

Section: Resultsmentioning

confidence: 92%

Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil

2008

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Abstract:We report the results of a seven-year survey of the anurans of Marambaia, in the State of Rio de Janeiro, southeastern Brazil, where 24 species were recorded. The species represented nine families: Hylidae (10 species), Bufonidae (3), Leptodactylidae (3), Hylodidae (2), Microhylidae (2), Craugastoridae (1), Centrolenidae (1), Cycloramphidae (1), and Leiuperidae (1). We also present notes on the natural history and habitat usage by the anurans.

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“…Oda et al, 2009;São-Pedro & Feio, 2010;Kopp et al, 2010;Ferreira et al, 2012;Venâncio et al, 2014). Esta relação se deve à dependência dos anfíbios aos ambientes úmidos tanto para manutenção das condições fisiológicas quanto para reprodução (Hatano et al, 2002;Both et al, 2008;Canavero & Arim, 2009;Cole et al, 2014). A maioria das espécies de anfíbios que possuem reprodução explosiva ou restrita a poucos meses do ano sincronizam suas atividades com o período chuvoso , permitindo assim uma maior taxa de sobrevivência e aptidão (Visser et al, 2009).…”

Section: Discussionunclassified

“…A influência de fatores climáticos é conhecida tanto para anfíbios (Oda et al, 2009;São Pedro & Feio, 2010;Kopp et al, 2010;Ferreira et al, 2012;Venâncio et al, 2014), quanto para répteis (Colli, 1991;Vitt et al, 1995;Daltry et al, 1998;Nicholson et al, 2005;Vitt et al, 2008;Huey et al, 2009;Carlson et al, 2014). De forma geral, ambos os grupos são sensíveis às grandes variações nas condições climáticas, sendo estas limitantes principalmente em relação às estratégias reprodutivas (Vitt et al, 1994;Duellman, 1999;Hatano et al, 2002;Bernarde & Abe, 2006;Both et al, 2008;Canavero et al, 2009) e de forrageio (Bernarde & Abe, 2006;Huey et al, 2009;Hartmann et al, 2009), podendo variar entre regiões (Menin et al, 2008;Heatwole & Sexton, 2012;Rocha et al, 2014), entre espécies e entre o sexo e fases ontogenéticas (Nicholson et al, 2005;Bernarde & Abe, 2006;Menin et al, 2008;Cole et al, 2014).…”

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Diversidade local e influência da sazonalidade sobre taxocenoses de anfíbios e répteis na Reserva Extrativista Chico Mendes, Acre, Brasil

França

Freitas

Ramalho³

et al. 2017

Iheringia, Sér. Zool.

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ABSTRACT. Local diversity and infl uence of seasonality on amphibians and reptiles assemblages in the Reserva Extrativista Chico Mendes, Acre, Brazil. Despite the high richness of amphibians and reptiles known for the southwestern portion of the Brazilian Amazon, the knowledge of these is punctual and few studies have evaluated the temporal variations in the occurrence and abundance of species. The goals of this study were to present the amphibians and reptiles assemblages in a locality of the Chico Mendes Extractive Reserve, verify which climate variables infl uence the temporal fl uctuations in richness and abundance, and identify the main species of the amphibians and reptiles infl uenced by them. The study area is located in the Seringal Etelvi region, southwestern portion of the Reserve, municipality of Brasiléia, state of Acre. Data collection took place between October 2011 and September 2012, for 48 sampling days, using the methods of searches limited by time and pitfall traps. There were recorded 978 specimens of 31 amphibians and 54 reptiles. Higher richness and abundance of amphibians occurred during the rainy season, with the monthly abundance positively associated with the mean temperature. Only the abundance of reptiles was higher during the rainy period. However, both richness and abundance were positively associated with mean temperature. Four amphibians, Allobates gr. marchesianus, Hamptophryne boliviana (Parker, 1927), Boana geographica (Spix, 1824) and Rhinella marina (Linnaeus, 1758), and two reptiles, Kentropyx pelviceps Cope, 1868 and Norops fuscoauratus (D'Orbigny, 1837), had their monthly abundances positively associated with the mean temperature. The lizard Dactyloa punctata (Daudin, 1802) had the monthly abundance associated with precipitation. It was possible to verify the increase of richness and abundance of amphibians and reptiles during periods when the availability of resources is favorable for many species. Species can react diff erently to climatic variations, whereas others are sensitive to fl uctuations, others seem answer easily or not reduce their abundances in periods theoretically unfavorable.KEYWORDS. Richness, abundance, Southwestern Amazonia, seasonality, temporal variation.RESUMO. Apesar da elevada riqueza de anfíbios e répteis conhecida para a porção Sul-Ocidental da Amazônia brasileira, o conhecimento sobre estes é pontual e poucos estudos avaliaram as variações temporais na ocorrência e abundância das espécies. Os objetivos deste estudo foram descrever as taxocenoses de anfíbios e répteis em uma localidade da Reserva Extrativista Chico Mendes, verifi car quais variáveis climáticas infl uenciam as fl utuações temporais na riqueza e abundância e identifi car as principais espécies de anfíbios e répteis infl uenciadas por elas. A área de estudo está localizada na região do Seringal Etelvi, porção sudoeste da Reserva, município de Brasiléia, estado do Acre. A coleta de dados ocorreu entre outubro de 2011 e setembro de 2012, num total de 48 dias de amostragem, com os mét...

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Environmental Factors Affecting Calling Activity of a Tropical Diurnal Frog (Hylodes phyllodes: Leptodactylidae)

Cited by 68 publications

References 10 publications

Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil

Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil

Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil

Diversidade local e influência da sazonalidade sobre taxocenoses de anfíbios e répteis na Reserva Extrativista Chico Mendes, Acre, Brasil

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