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Effects of temperature on growth, development, and survival of amphibian larvae: macroecological and evolutionary patterns growth development larvae
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ALVES-FERREIRA, GABRIELA

; FORTUNATO, DANILO S.

; KATZENBERGER, MARCO

; FAVA, FERNANDA G.

; SOLÉ, MIRCO

Anais da Academia Brasileira de Ciências

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2024, Volume 96 N. 2 elocation e20230671

Abstract: En | Text: En | PDF: En

Abstract Temperature affects the rate of biochemical and physiological processes in amphibians, influencing metamorphic traits. Temperature patterns, as those observed in latitudinal and altitudinal clines, may impose different challenges on amphibians depending on how species are geographically distributed. Moreover, species’ response to environmental temperatures may also be phylogenetically constrained. Here, we explore the effects of acclimation to higher temperatures on tadpole survival, development, and growth, using a meta-analytical approach. We also evaluate whether the latitude and climatic variables at each collection site can explain differences in species’ response to increasing temperature and whether these responses are phylogenetically conserved. Our results show that species that develop at relatively higher temperatures reach metamorphosis faster. Furthermore, absolute latitude at each collection site may partially explain heterogeneity in larval growth rate. Phylogenetic signal of traits in response to temperature indicates a non-random process in which related species resemble each other less than expected under Brownian motion evolution (BM) in all traits, except survival. The integration of studies in a meta-analytic framework allowed us to explore macroecological and macroevolutionary patterns and provided a better understanding of the effects of climate change on amphibians. clines distributed Moreover constrained Here survival development metaanalytical meta analytical approach conserved faster Furthermore nonrandom non random BM (BM metaanalytic analytic

https://doi.org/10.1590/0001-3765202420230671

Tracking the little ones: use of fluorescent powder to follow a leaf litter lizard (Coleodactylus meridionalis, Squamata: Sphaerodactylidae) in the Atlantic Forest of southern Bahia, Brazil ones Coleodactylus meridionalis Squamata Sphaerodactylidae Bahia
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ROSENO, RAFAELLA S.

; PAREJA-MEJÍA, DANIELA

; SANTOS, LAISA S. DOS

; DIELE-VIEGAS, LUISA MARIA

; CARILO FILHO, LEILDO M.

; NASCIMENTO, PATRICK R.

; EIDENBERGER, GERHARD G.

; SOLÉ, MIRCO

Anais da Academia Brasileira de Ciências

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2024, Volume 96 N. 3 elocation e20230728

Abstract: En | Text: En | PDF: En

Abstract The ecology of movement is an expanding area, marked by the diversity of analytical methods and protocols, which enables this integrative reading. We investigated movement ecology aspects of Coleodactylus meridionalis in southern Bahia, northeastern Brazil, using fluorescent powder with mineral oil to track individuals. We monitored 69 individuals of C. meridionalis that walked an average distance of 148 cm in 2h. We identified this movement as foraging due to the orientation of the step sequence and microenvironments used. We find no significant differences between walking distance and weight. However, we found a decrease in activity over the follow-up period. Most of the lizard’s movements were directed north, while south, east, and west were followed equally. The individuals stayed predominantly on the ground (leaf litter), but it was possible to observe the use of other surfaces, such as trunks and burrows on the ground. Therefore, we studied the movement in three dimensions (ground height, distance traveled, and orientation of steps). We observed the lizard’s foraging, one of the most common and least investigated movements in small lizards like C. meridionalis. This involves not only the species’ activity schedule but other intrinsic and extrinsic factors that shape the movement decisions of individuals. area protocols reading Bahia Brazil 6 C 14 2h h used weight However followup follow up period lizard s north south east equally leaf litter, litter , litter) surfaces Therefore height traveled steps. steps . steps) species 1

https://doi.org/10.1590/0001-3765202420230728

DNA barcode reveals candidate species of Scinax and Ololygon (Anura: Hylidae) in Atlantic Forest
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Nogueira, Lídia

; Rodrigues Filho, Luís Fernando da Silva

; Solé, Mirco

; Affonso, Paulo Roberto Antunes de Mello

; Siqueira, Sergio

; Sampaio, Iracilda

Genetics and Molecular Biology

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2022, Volume 45 N. 1 elocation e20210177

Abstract: En | Text: En | PDF: En

Abstract Molecular species delimitation methods are efficient tools to identify species, including the discovery of new taxa and cryptic organisms, thus being useful to biodiversity studies. In the present work, 16S mitochondrial sequences and cytochrome oxidase I (COI) were used to evaluate the richness of species in the genus Scinax and Ololygon from a biodiversity hotspot in Atlantic Forest. A total of 109 specimens formally belonging to eight species of Scinax and three species of Ololygon were collected in 13 localities along the state of Bahia (northeastern Brazil) and one site in Espírito Santo (southeastern Brazil). Of the Scinax species collected in this study, three were morphologically differentiated from other described species and identified as putative new species (Scinax sp.1, Scinax sp.2 and Scinax sp.3). The species delimitations were inferred using three different methods: ABGD, PTP and mPTP which allowed recognizing 11 Scinax species and five Ololygon species. Scinax sp. 1, Scinax sp. 2 and Scinax sp. 3, have been confirmed as new putative species and Ololygon argyreornata possibly contains cryptic species. We suggest additional studies, including morphological and bioacoustic data to validate these new putative species.

https://doi.org/10.1590/1678-4685-gmb-2021-0177

Brazilian legislation on genetic heritage harms Biodiversity Convention goals and threatens basic biology research and education
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ALVES, RUY JOSÉ V.

; WEKSLER, MARCELO

; OLIVEIRA, JOÃO A.

; BUCKUP, PAULO A.

; POMBAL JR., JOSÉ P.

; SANTANA, HÉLCIO R.G.

; PERACCHI, ADRIANO LÚCIO

; KELLNER, ALEXANDER W.A.

; ALEIXO, ALEXANDRE

; LANGGUTH, ALFREDO

; ALMEIDA, ALZIRA MARIA P. DE

; ALBERNAZ, ANA LUISA

; RIBAS, CAMILA C.

; ZILBERBERG, CARLA

; GRELLE, CARLOS EDUARDO V.

; ROCHA, CARLOS F.D.

; LAMAS, CARLOS JOSÉ E.

; HADDAD, CÉLIO F.B.

; BONVICINO, CIBELE R.

; PRADO, CYNTHIA P.A.

; LIMA, DANIELA O. DE

; ROSSA-FERES, DENISE C.

; SANTOS, FABRÍCIO R. DOS

; SALIMENA, FÁTIMA REGINA G.

; PERINI, FERNANDO A.

; BOCKMANN, FLÁVIO A.

; FRANCO, FRANCISCO LUÍS

; GIUDICE, GISELE M.L. DEL

; COLLI, GUARINO R.

; VIEIRA, IMA CÉLIA G.

; MARINHO-FILHO, JADER

; WERNECK, JANE M.C.F.

; SANTOS, JORGE A.D. DOS

; NASCIMENTO, JORGE LUIZ DO

; NESSIMIAN, JORGE LUIZ

; CORDEIRO, JOSÉ LUIS P.

; CLARO, KLEBER DEL

; SALLES, LEANDRO O.

; CASATTI, LILIAN

; PY-DANIEL, LUCIA HELENA R.

; SILVEIRA, LUÍS FÁBIO

; TOLEDO, LUÍS FELIPE

; OLIVEIRA, LUIZ F. DE

; MALABARBA, LUIZ ROBERTO

; SILVA, MARCELO D. DA

; COURI, MÁRCIA S.

; MARTINS, MÁRCIO

; TAVARES, MARCOS D.S.

; SOBRAL, MARCOS EDUARDO G.

; VIEIRA, MARCUS VINÍCIUS

; OLIVEIRA, MARIA DE LOURDES A.

; PINNA, MÁRIO DE

; HOPKINS, MICHAEL J.G.

; SOLÉ, MIRCO

; MENEZES, NAÉRCIO A.

; PASSOS, PAULO

; D’ANDREA, PAULO SERGIO

; PINTO, PEDRO C.E.A.

; VIANA, PEDRO L.

; TOLEDO, PETER M.

; REIS, ROBERTO E.

; VILELA, ROBERTO

; BASTOS, ROGÉRIO P.

; COLLEVATTI, ROSANE G.

; CERQUEIRA, RUI

; CASTROVIEJO-FISHER, SANTIAGO

; CARAMASCHI, ULISSES

Anais da Academia Brasileira de Ciências

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apr 2018, Volume 90 N. 2 Pages 1279 - 1284

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0001-3765201820180460 7311 downloads

Disgusting or delicious? Predatory behavior of the hylid frog Phyllodytes luteolus on sympatric ants
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Solé, Mirco

; Loebmann, Daniel

Iheringia. Série Zoologia

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2017, Volume 107 elocation e2017030

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO As pererecas que habitam fitotelmatas do gênero Phyllodytes Wagler, 1830 têm sido caracterizadas como especialistas em relação à sua estratégia de dieta, que é composta principalmente por insetos coloniais. Neste trabalho, usamos duas espécies de formigas (Camponotus sp. e Gnamptogenys sp.) com mecanismos de defesa diferentes para testar o comportamento predatório de Phyllodytes luteolus Wied, 1824. O experimento foi conduzido com pererecas que habitavam uma mancha de 20 bromélias (Aechmea cf. blanchetiana ). As formigas foram oferecidas aleatoriamente para as pererecas até que obtivemos dez observações de predação para cada espécie de formiga. Observamos e registramos o tempo que P. luteolus precisou manter cada espécie de formiga dentro da boca antes da mesma poder ser ingerida. O comportamento de predação foi altamente distinto. Enquanto Camponotus foram capturadas e engolidas dentro de seis segundos e sem desconforto aparente, indivíduos de P. luteolus tiveram maiores dificuldades em engolir indivíduos de Gnamptogenys, com tempo de manipulação variando de 57 a 177 segundos. Os valores médios do tempo de predação em cada tratamento foram altamente significativos (p<0.001). Concluímos que as diferenças encontradas no tempo de manipulação estão altamente correlacionadas com os mecanismos de defesa de cada espécie de formiga.

ABSTRACT The phytotelm-dwelling frogs from the genus Phyllodytes Wagler, 1830 have been characterized as specialist frogs regarding their diet strategy which is mainly composed by colonial insects. Herein, we used two species of ants (Camponotus sp. and Gnamptogenys sp.) with distinct defensive mechanisms to test the predatory behavior of Phyllodytes luteolus Wied, 1824. The experiment was conducted with frogs inhabiting a patch of 20 bromeliads (Aechmea cf. blanchetiana). Ants were offered randomly to the frogs until we obtained ten observations of predation of each ant species. We observed and recorded the time that P. luteolus needed to keep each ant species inside its mouth before it could ingest it. Predatory behavior was highly distinct. While Camponotus were caught and swallowed within six seconds and without apparent discomfort, individuals of P. luteolus had more difficulty in swallowing Gnamptogenys individuals, the time of manipulation ranging from 57 to 177 seconds. The mean values of time of predation observed in each treatment was highly significant (p<0.001). We conclude that differences found in the time of manipulation are highly correlated with defense mechanisms of each species of ants.

https://doi.org/10.1590/1678-4766e2017030 874 downloads

Genetic analysis reveals candidate species in the Scinax catharinae clade (Amphibia: Anura) from Central Brazil
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Nogueira, Lídia

; Solé, Mirco

; Siqueira, Sérgio

; Affonso, Paulo Roberto Antunes de Mello

; Strüssmann, Christine

; Sampaio, Iracilda

Genetics and Molecular Biology

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mar 2016, Volume 39 N. 1 Pages 49 - 53

Abstract: En | Text: En | PDF: En

Abstract Scinax (Anura: Hylidae) is a species-rich genus of amphibians (113 spp.), divided into five species groups by morphological features. Cladistic analyses however revealed only two monophyletic clades in these groups: Scinax catharinae and Scinax ruber. Most species from the S. catharinae clade are found in Atlantic rainforest, except for Scinax canastrensis,S. centralis, S. luizotavioi, S. machadoi,S. pombali and S. skaios. In the present work, specimens of Scinax collected in Chapada dos Guimarães, central Brazil, were morphologically compatible with species from theS. catharinae group. On the other hand, genetic analysis based on mitochondrial (16S and 12S) and nuclear (rhodopsin) sequences revealed a nucleotide divergence of 6 to 20% between Scinax sp. and other congeners from the Brazilian savannah (Cerrado). Accordingly, Bayesian inference placed Scinax sp. in the S. catharinae clade with high support values. Hence, these findings strongly indicate the presence of a new species in the S. catharinae clade from the southwestern portion of the Brazilian savannah. To be properly validated as a novel species, detailed comparative morphological and bioacustic studies with other taxa from Brazil such asS. canastrensis, S. centralis, S. luizotavioi, S. machadoi, S. pombali and S. skaios are required.

https://doi.org/10.1590/1678-4685-GMB-2015-0037 1937 downloads

Cytogenetic studies in six species of Scinax (Anura, Hylidae) clade Scinax ruber from northern and northeastern Brazil
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Nogueira, Lídia

; Zanoni, Juliani Bruna

; Solé, Mirco

; Affonso, Paulo Roberto Antunes de Mello

; Siqueira, Sérgio

; Sampaio, Iracilda

Genetics and Molecular Biology

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jun 2015, Volume 38 N. 2 Pages 156 - 161

Abstract: En | Text: En | PDF: En

Scinax species are still underrepresented in cytogenetic studies, mainly with respect to populations from northeastern and northern Brazil. In this study, we provide new chromosomal information on Scinax boesemani, S. camposseabrai, S. garbei, S. pachycrus, S. trilineatus and S. x-signatus, all belonging to clade S. ruber. They were collected at two locations in the Caatinga biome (northeastern Brazil) and at one in the Amazon (northern Brazil) biomes. Chromosomes were analyzed by conventional staining, C-banding, Ag-NOR staining, and fluorochrome staining. All species shared a modal diploid value of 2n = 24 and fundamental arm number (FN) of 48. Moreover, both chromosomal size and morphology were similar to other species in this Scinax clade. C-banding revealed centromeric heterochromatin in all species, along with terminal species-specific C-bands in some species. Active nucleolar organizer regions (Ag-NORs) were identified at 11q in most species, except for S. boesemani and S. garbei (Ag-NORs at interstitial region of 8q). Differing from most anurans, GC-rich regions were not restricted to NORs, but also coincident with some centromeric and terminal C-bands. These data contribute to the cytotaxonomy of Scinax by providing chromosomal markers and demonstrating the occurrence of microstructural rearrangements and inversions on chromosomal evolution of Scinax.

https://doi.org/10.1590/S1415-4757382220140280 1821 downloads

Diversity patterns, research trends and mismatches of the investigative efforts to amphibian conservation in Brazil
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CAMPOS, FELIPE S.

; BRITO, DANIEL

; SOLÉ, MIRCO

Anais da Academia Brasileira de Ciências

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dec 2014, Volume 86 N. 4 Pages 1873 - 1886

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O número de artigos sobre biologia de anfíbios tem aumentado nos últimos anos. Um panorama detalhado destas publicações pode ser bastante útil na avaliação do estado do nosso conhecimento sobre este grupo taxonômico. Em função do grande número de artigos publicados no Brasil a cada ano, nós avaliamos a contribuição das pesquisas herpetológicas realizadas entre os anos de 2001 e 2010 no que diz respeito aos anfíbios brasileiros, consideirando os padrões de diversidade, as ameaças e os temas de investigação que mais têm sido publicados. Índices de atenção cienciométricos foram aplicados nos estudos analisados a partir de sete bancos de dados. Para ponderar a relação entre o número de espécies registradas localmente e regionalmente em diferentes escalas espaciais, nós utilizamos análises de partição aditiva da diversidade em três níveis hierárquicos (i.e., estados, regiões geográficas e biomas). Nós avaliamos 892 artigos e 914 espécies, o que mostrou que 65 % do total da diversidade de espécies de anfíbios brasileiros foi representada pela beta diversidade entre os biomas. Nós identificamos muitas diferenças na alocação de esforços de pesquisa para grupos taxonômicos, categorias ameaças, regiões geográficas e tópicos de pesquisa, destacando as principais tendências de investigação desenvolvidas e os temas prioritários para a investigação de novos trabalhos sobre os anfíbios brasileiros.

The number of papers on biology of amphibians has increased in the recent years. A detailed overview of the publications on amphibians can be very useful in assessing the status of our knowledge about this taxonomic group. Due to the large number of articles published, we aimed to assess the scientific contribution of herpetological researches carried out between the years 2001 and 2010 on Brazilian amphibians, considering the diversity patterns, the threats and the research topics that have been published most often. We applied scientometric attention indexes in the reviewed studies from seven scientific databases. To examine the relationship between the numbers of species recorded locally and regionally at different spatial scales, we used an additive partitioning of diversity in three hierarchical levels (i.e., states, geographic regions and biomes). We evaluated 892 articles and 914 species, which showed that 65 % of the total diversity of Brazilian amphibian species was represented by the beta diversity among the biomes. We identified many differences in the allocation of research efforts for taxonomic groups, threats categories, geographic regions, and research topics, highlighting the main research trends conducted and the priority themes for investigation of further papers on Brazilian amphibians.

https://doi.org/10.1590/0001-3765201420140170 3206 downloads

Reproductive biology of a bromeligenous frog endemic to the Atlantic Forest: Aparasphenodon arapapa Pimenta, Napoli and Haddad, 2009 (Anura: Hylidae)
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LANTYER-SILVA, AMANDA S.F.

; SOLÉ, MIRCO

; ZINA, JULIANA

Anais da Academia Brasileira de Ciências

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jun 2014, Volume 86 N. 2 Pages 867 - 880

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O gênero Aparasphenodon é restrito à América do Sul e abrange cinco espécies pouco estudadas que apresentam uma estreita relação com bromélias. Neste trabalho apresentamos a biologia reprodutiva da espécie Aparasphenodon arapapa. Nossas observações indicam que A. arapapa apresenta reprodução prolongada ao longo do ano e utiliza bromélias como sítio de vocalização e reprodução. Os girinos completam seu desenvolvimento no interior das bromélias. Machos, fêmeas e juvenis podem também utilizar essas plantas como abrigo. Também descrevemos o comportamento de corte e cuidado parental da espécie, com evidência de fidelidade temporária entre macho e fêmea. Além disso, propomos um novo modo reprodutivo.

The genus Aparasphenodon is restricted to South America and comprises five poorly studied species which present a straight relationship with bromeliads. Herein we present the reproductive biology of the species Aparasphenodon arapapa. Our observations indicate that A. arapapa is a prolonged breeder, reproducing throughout the year using bromeliads as a calling and breeding site. The tadpoles complete their development inside those plants. Males, females and juveniles may also use the bromeliads as a shelter. We also describe the courtship behavior and the parental care of the species with an evidence of temporary fidelity between male and female and propose a new reproductive mode.

https://doi.org/10.1590/0001-3765201420130521 3782 downloads

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