Abiotic Correlates of Anuran Calling Phenology: The Importance of Rain, Temperature, and Season

Saenz, Daniel; Fitzgerald, Lee A.; Baum, Kristen A.; Conner, Richard N.

doi:10.1655/0733-1347(2007)20[64:acoacp]2.0.co;2

Cited by 132 publications

(141 citation statements)

References 24 publications

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“…Low barometric pressure has been associated with increase in calling activity in some amphibians (Henzi et al 1995, Oseen andWassersug 2002); however, in E. bicolor foraging activity increases with higher barometric pressure; thus, the rise of atmospheric pressure after rainfalls may be triggering foraging activity. Calling activity of some amphibians from temperate climates is positively correlated to one and two day's prior rainfall (Saenz et al 2006), indicating a similar relation to the one found here for E. bicolor, which peaks occurred the second or third day after rains. Also, there is evidence that explosive breeders practically do not feed during reproduction (Solé and Pelz 2007).…”

Section: Discussionsupporting

confidence: 81%

“…Humidity mediates reproductive activity in several amphibian species (Oseen andWassersug 2002, Richter-Boix et al 2006), and air temperature has been associated to activity of other species of genus Elachistocleis and is classically related to amphibian activity in temperate environments (Oseen and Wassersug 2002, Saenz et al 2006, Richter-Boix et al 2006, Canavero et al 2008. Therefore, reproduction and foraging activities are regulated by different climatic variables.…”

Section: Discussionmentioning

confidence: 99%

“…Studies on amphibians' activity patterns classically refer to calling phenology, which is regulated by several abiotic and biotic environmental cues, such as climatic variables, intraspecific and interspecific social interactions, environmental physiology and reproductive behaviors (Feder and Burggren 1992, Oseen and Wassersug 2002, Saenz et al 2006, RichterBoix et al 2006, Wells 2007, Canavero et al 2008. Beyond reproduction, feeding is one of the activities that occupies most amphibians' time when they are not aestivating and, even though attention has been paid to some aspects of their feeding behavior, others remain poorly studied (Duellman and Trueb 1986).…”

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

López¹,

Antoniazzi²,

Lorenzón³

et al. 2017

Caldasia

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We analyzed spatio-temporal patterns and behavior of the foraging activity of the myrmecophagous frog Elachistocleis bicolor. We delimit ten 1m 2 plots and recorded the number of frogs, distance between individuals and foraging behavior at half-hour intervals, during nine days. Using a generalized linear mixed model, we evaluated the maximum, minimum, and average daily temperature, microhabitat temperature, relative humidity, atmospheric pressure, the number of days since the last rain and last 48 hours accumulated rainfall as explanatory variables of frogs' activity. The variables that best explained frogs' activity were: mean atmospheric pressure, number of days since last rain and accumulated rainfall. Frogs showed an aggregated distribution pattern when foraging (Morisita standardized index= 0.501). The average distance between frogs was 47.53±25.28 mm. Frogs displayed a combined (active-passive) foraging strategy, actively searching ant trails, digging with their heads on trails running under the mulch, and them passively preying on ants as they pass through. Results showed that the E. bicolor foraging activity followed a circadian cycle that is regulated by several climatic variables, and that these frogs aggregated when foraging for ants.Key words. Mirmecophagy, phenology, feeding behavior, two-colored oval frog. RESUMENAnalizamos los patrones espacio-temporales y comportamiento de forrajeo de la rana mirmecófaga Elachistocleis bicolor. Delimitamos diez cuadrantes de 1 m 2 en los que registramos el número de ranas, distancia entre individuos y comportamiento a intervalos de media hora durante nueve días. Utilizando modelos lineales mixtos generalizados evaluamos el poder explicativo de las variables: temperaturas diarias máximas, mínimas y medias, temperatura de microhábitat, humedad relativa, presión atmosférica, días transcurridos desde la última lluvia y pluviosidad acumulada en las últimas 48 horas, sobre la actividad de las ranas. Las variables que mejor explicaron la actividad de las ranas fueron: presión atmosférica media, días desde la última lluvia y pluviosidad acumulada. Las ranas mostraron un patrón de distribución agregado durante el forrajeo (índice estandarizado de Morisita = 0,501). La distancia media entre ranas fue 47,53±25,28 mm. Las ranas exhibieron un comportamiento 346 Foraging activity of Elachistocleis bicolor

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

López¹,

Antoniazzi²,

Lorenzón³

et al. 2017

Caldasia

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“…Explosive aggregations of Rhinella marina and Trachycephalus typhonius in temporary ponds formed on the forest edge did not occur in the months of highest rainfall, corroborating the results of SAENZ et al (2006). They suggested that explosive breeding in species that use temporary ponds are associated with one or two days of heavy rain prior to the breeding explosion (e.g., BERNARDE 2007).…”

Section: Reproductive Evidencesupporting

confidence: 56%

Richness, breeding environments and calling activity of the anurofauna of the lower moa river forest, state of Acre, Brazil

Miranda

Albuquerque²,

Turci³

et al. 2015

Zoologia (Curitiba)

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“…A resposta dos anuros às variações na temperatura tem sido verificada em estudos tanto em ecossistemas temperados (Saenz et al, 2006;McCaffery & Maxell, 2010) quanto tropicais (Oda et al, 2009;Kaefer et al, 2012;Cole et al, 2014;Gambale et al, 2014), enfatizando a dependência dos anfíbios à temperatura para regulação dos processos fisiológicos e ciclos ecológicos (Corn, 2005;Wells, 2007), assim como na determinação da distribuição altitudinal, latitudinal e espacial das espécies (Corn, 2005).…”

Section: Discussionunclassified

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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Abiotic Correlates of Anuran Calling Phenology: The Importance of Rain, Temperature, and Season

Cited by 132 publications

References 24 publications

Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

Spatio-temporal patterns of foraging and feeding behavior of Elachistocleis bicolor (Anura: Microhylidae)

Richness, breeding environments and calling activity of the anurofauna of the lower moa river forest, state of Acre, Brazil

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

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