Ecologia térmica de anuros da Caatinga, Nordeste do Brasil
Thermal ecology of anurans in the Caatinga, Northeastern Brazil. Anurans regulate their body temperature through external heat sources. In this sense, the microhabitat used can influence this physiological process. Thus, the objective of this study was to verify the body temperature of anuran specie...
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| Formato: | Articulo |
| Lenguaje: | Portugués |
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2023
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/159827 |
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I19-R120-10915-1598272023-11-06T20:02:41Z http://sedici.unlp.edu.ar/handle/10915/159827 Ecologia térmica de anuros da Caatinga, Nordeste do Brasil Carvalho Ferreira, Larissa Limeira da Silva, Geane Barros Ribeiro, Leonardo 2023-09 2023-11-06T17:29:03Z pt Zoología Bufonidae Hylidae Leptodactylidae Semiarid region Body temperature Região semiárida Temperatura corpórea Thermal ecology of anurans in the Caatinga, Northeastern Brazil. Anurans regulate their body temperature through external heat sources. In this sense, the microhabitat used can influence this physiological process. Thus, the objective of this study was to verify the body temperature of anuran species in the Caatinga domain and to correlate the possible variations to the different microhabitats used. For this, active searches were carried out during the day and night shifts, between August 2019 and May 2021. The frogs were captured manually to measure the cloacal temperature and then released. Substrate and air temperatures were also checked for associations with body temperature. In total, 420 frogs were captured, and the body temperature was obtained from 147 individuals of five species in the rainy season (Leptodactylus macrosternum, Scinax x-signatus, Rhinella granulosa, Rhinella diptycha and Pithecopus gonzagai), and from 273 individuals of four species in the dry season (L. macrosternum, S. x-signatus, R. granulosa and R. diptycha). In general, the highest body temperature averages (28.4-29.3ºC) were observed in the rainy season for L. macrosternum, R. granulosa and R. diptycha. The most preferred microhabitats of anurans were soil and water. Finally, even though an association between body temperature and air temperature was found, substrate temperature proved to be the most important source of thermal regulation for most anuran species investigated. Os anuros regulam sua temperatura corpórea por meio de fontes externas de calor. Nesse sentido, o micro-hábitat utilizado pode influenciar nesse processo fisiológico. Desta forma, o objetivo deste estudo foi verificar a temperatura corpórea de espécies de anuros no domínio Caatinga e correlacionar as possíveis variações aos diferentes micro-hábitats utilizados. Para isso foram realizadas buscas ativas nos turnos diurno e noturno, entre agosto de 2019 e maio de 2021. Os anuros foram capturados manualmente para aferição da temperatura cloacal e soltos em seguida. As temperaturas do substrato e do ar também foram verificadas para associações com a temperatura corpórea. No total, 420 anuros foram capturados, sendo obtida a temperatura corpórea de 147 indivíduos de cinco espécies no período chuvoso (Leptodactylus macrosternum, Scinax x-signatus, Rhinella granulosa, Rhinella diptycha e Pithecopus gonzagai), e de 273 indivíduos de quatro espécies no período seco (L. macrosternum, S. x-signatus, R. granulosa e R. diptycha). De um modo geral, as maiores médias de temperatura corpórea (28,4−29,3ºC) foram observadas no período chuvoso para L. macrosternum, R. granulosa e R. diptycha. Os microhábitats de maior preferência dos anuros foram o solo e a água. Finalmente, ainda que tenha sido encontrada associação da temperatura corpórea com a temperatura do ar, a temperatura do substrato demonstrou ser a fonte mais importante na regulação térmica para a maioria das espécies de anuros investigadas. Asociación Herpetológica Argentina Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf 161-169 |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Portugués |
| topic |
Zoología Bufonidae Hylidae Leptodactylidae Semiarid region Body temperature Região semiárida Temperatura corpórea |
| spellingShingle |
Zoología Bufonidae Hylidae Leptodactylidae Semiarid region Body temperature Região semiárida Temperatura corpórea Carvalho Ferreira, Larissa Limeira da Silva, Geane Barros Ribeiro, Leonardo Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| topic_facet |
Zoología Bufonidae Hylidae Leptodactylidae Semiarid region Body temperature Região semiárida Temperatura corpórea |
| description |
Thermal ecology of anurans in the Caatinga, Northeastern Brazil. Anurans regulate their body temperature through external heat sources. In this sense, the microhabitat used can influence this physiological process. Thus, the objective of this study was to verify the body temperature of anuran species in the Caatinga domain and to correlate the possible variations to the different microhabitats used. For this, active searches were carried out during the day and night shifts, between August 2019 and May 2021. The frogs were captured manually to measure the cloacal temperature and then released. Substrate and air temperatures were also checked for associations with body temperature. In total, 420 frogs were captured, and the body temperature was obtained from 147 individuals of five species in the rainy season (Leptodactylus macrosternum, Scinax x-signatus, Rhinella granulosa, Rhinella diptycha and Pithecopus gonzagai), and from 273 individuals of four species in the dry season (L. macrosternum, S. x-signatus, R. granulosa and R. diptycha). In general, the highest body temperature averages (28.4-29.3ºC) were observed in the rainy season for L. macrosternum, R. granulosa and R. diptycha. The most preferred microhabitats of anurans were soil and water. Finally, even though an association between body temperature and air temperature was found, substrate temperature proved to be the most important source of thermal regulation for most anuran species investigated. |
| format |
Articulo Articulo |
| author |
Carvalho Ferreira, Larissa Limeira da Silva, Geane Barros Ribeiro, Leonardo |
| author_facet |
Carvalho Ferreira, Larissa Limeira da Silva, Geane Barros Ribeiro, Leonardo |
| author_sort |
Carvalho Ferreira, Larissa |
| title |
Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| title_short |
Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| title_full |
Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| title_fullStr |
Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| title_full_unstemmed |
Ecologia térmica de anuros da Caatinga, Nordeste do Brasil |
| title_sort |
ecologia térmica de anuros da caatinga, nordeste do brasil |
| publishDate |
2023 |
| url |
http://sedici.unlp.edu.ar/handle/10915/159827 |
| work_keys_str_mv |
AT carvalhoferreiralarissa ecologiatermicadeanurosdacaatinganordestedobrasil AT limeiradasilvageane ecologiatermicadeanurosdacaatinganordestedobrasil AT barrosribeiroleonardo ecologiatermicadeanurosdacaatinganordestedobrasil |
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1807221767119306752 |