Revisiting the systematics of the Leptodactylus melanonotus group (Anura: Leptodactylidae): Redescription of L. petersii and revalidation of its junior synonyms

Gazoni, Thiago; Lyra, Mariana L.; Ron, Santiago R.; Strüssmann, Christine; Baldo, Diego; Narimatsu, Hideki; Pansonato, André; Schneider, Rosío G.; Giaretta, Ariovaldo Antônio; Haddad, Célio F. B.; Parise-Maltempi, Patrícia Pasquali; Carvalho, Thiago Ribeiro de

doi:10.1016/j.jcz.2020.12.002

Cited by 16 publications

(14 citation statements)

References 53 publications

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“…8E), we refrain to designate them as candidate new species because deep conspecific divergences are common events within these taxa (Caminer et al, 2017;Vacher et al, 2020;Gazoni et al, 2021. Furthermore, our analyses of voucher specimens revealed that their morphology fitted in the reported variation for these nominal species (Heyer, 1997;Caminer et al, 2017;Rivadeneira et al, 2018;Gazoni et al, 2021).…”

Section: Taxonomic Status Clarified With Dna Barcodingmentioning

confidence: 93%

Amphibians and reptiles from a protected area in western Brazilian Amazonia (Reserva Extrativista do Baixo Juruá)

et al. 2022

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Sampling gaps across the logistically challenging and extremely biodiverse Amazonia largely hamper our understanding of broad-scale amphibian and reptile diversity patterns in this ecosystem. The Juruá River basin, a southwestern tributary of the Amazon River, is one of these undersampled areas, with only punctual information documented for these vertebrates that are spatially or temporally biased. This is especially the case for the lower-middle courses of the Juruá River, which also has comparatively less protected areas than its upper course. In order to fill some biodiversity knowledge gaps associated with amphibians and reptiles in this river basin, we combined results of our field expeditions carried out in 1992, 2005-2007, and 2018 to the Reserva Extrativista (Extractive Reserve) do Baixo Juruá, a Brazilian protected area in the right bank of the lower Juruá River. Amphibians and reptiles were sampled using four complementary methods: active surveys, pitfall traps, funnel traps, and trammel nets. We identified species or updated their taxonomic status with a reanalysis of the external morphology of the preserved material in the light of novel taxonomic literature (more than 1,500 specimens) and employment of DNA barcoding analyses for some newly collected specimens with contentious taxonomic status. Our combined sampling evidenced 149 species of amphibians and reptiles occurring in this protected area (72 amphibians, 68 squamates, six chelonians, and three crocodilians). Recorded species highlight the value of the lower Juruá River region as harboring quite diverse assemblages for these vertebrates, with species typical of the western and southwestern Amazonia sub-regions. Remarkable species records are presented, as well as accounts on species with lower taxonomic resolution. Furthermore, we discuss the biogeographic affinities of recorded assemblages based on the species geographic range and preferred habitats, and the value of this protected area to preserve the regional biological diversity.

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Section: Taxonomic Status Clarified With Dna Barcodingmentioning

confidence: 93%

Amphibians and reptiles from a protected area in western Brazilian Amazonia (Reserva Extrativista do Baixo Juruá)

et al. 2022

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“…bolivianus from Lima (2006b) to be L. guianensis. Gazoni et al (2021) recently revisited the systematics of the group of L. melanonotus using an integrative approach. One of the taxonomic results was the revalidation of L. intermedius, previously a junior synonym of Leptodactylus petersii Steindachner, 1864.…”

Section: Family Dendrobatidae Cope 1865mentioning

confidence: 99%

“…All records previously associated with L. podicipinus in Amapá should be assigned to L. intermedius. Leptodactylus wagneri is distributed in western Amazonia and the records in eastern Amazonia correspond either to L. intermedius (see Gazoni et al 2021) or to unnamed species, treated here as Leptodactylus sp., endemic to the Eastern Guiana Shield (Carvalho et al in press). Leptodactylus leptodactyloides (Andersson, 1945) is widely distributed in Amazonia but reported in Amapá for the first time in this study.…”

Section: Family Dendrobatidae Cope 1865mentioning

confidence: 99%

Anurans (Amphibia: Anura) of the Brazilian state of Amapá, eastern Amazonia: species diversity and knowledge gaps

Taucce

Costa-Campos

Carvalho

et al. 2022

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We herein present the first annotated anuran checklist for the Brazilian state of Amapá, eastern Amazonia, based on a thorough literature review. We recorded the occurrence of 111 species belonging to 13 anuran families distributed across 48 localities throughout Amapá, within two biomes. Among these species, 62.5% occur exclusively in the Tropical Moist Broadleaf Forest biome, ~8% occur exclusively in the Tropical Savanna biome, and ~29% occur in both. Two species were considered endemic to Amapá and were registered only in the central portion of the state. Regarding the conservation status, only one species (Dendropsophus amicorum) is classified as threatened, assigned to the “critically endangered” category. The other species are categorized as either “least concern” or “data deficient” (85 and 8, respectively), whereas 21 are not evaluated. The current annotated list contributes to the incipient knowledge on anuran species richness in Amapá and, despite the research regarding anuran taxonomy has considerably progressed over the past 20 years, there is still much to do. Our data highlight the need for trained taxonomists to develop research in the state.

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“…For example, in our preliminary assessment of species diversity using DNA barcoding approach, we have shown that the total number of species might be underestimated by about 25% (Lyra et al 2017). We are also using these sequences as an additional line of evidence to describe and revalidate species (e.g., de Sá et al 2015, Gazoni et al 2021, to flag groups of species where species diversity could be underestimated (Walker, et al 2018, Sabbag et al 2018, or even identifying invasive species (Melo et al 2014). In addition to COI and 16S reference sequences, we have also been adding information on the 12S gene fragment to our databases, including data from environmental DNA studies of monitoring endangered species (e.g., Lopes et al 2021a, Lopes et al 2021b, see below), and complete mitogenome sequences from studies of systematics and evolution (e.g., Lyra et al 2021).…”

Section: Dna Barcoding and Sequence Database: A Tool For Taxonomy Sys...mentioning

confidence: 99%

From genes to ecosystems: a synthesis of amphibian biodiversity research in Brazil

et al. 2022

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Here, we summarize examples of significant advances in amphibian research supported by the São Paulo Research Foundation (FAPESP), focusing on recent discoveries in the fields of community ecology, habitat change, infection diseases, and multipurpose DNA sequencing. We demonstrated that FAPESP has been fundamental not only by directly funding research projects and scholarships, but also through its science training policy, fostering international collaborations with world-class research institutions, improving and consolidating new lines of research that often depended on a synergetic combination of different knowledge and complex tools. We emphasized that future studies will continue to focus on basic questions, such as description of new species, as well as taxonomic and systematic corrections. Furthermore, we also expect that there will be a strong integration among different disciplines using novel bioinformatics tools and modeling approaches, such as machine learning. These new approaches will be critical to further develop our understanding of foundational questions of amphibian life-history trait variation, disease transmission, community assembly, biogeography, and population forecasts under different global change scenarios such as agricultural expansion, agrochemical use, habitat loss, and climate change.

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Revisiting the systematics of the Leptodactylus melanonotus group (Anura: Leptodactylidae): Redescription of L. petersii and revalidation of its junior synonyms

Cited by 16 publications

References 53 publications

Amphibians and reptiles from a protected area in western Brazilian Amazonia (Reserva Extrativista do Baixo Juruá)

Amphibians and reptiles from a protected area in western Brazilian Amazonia (Reserva Extrativista do Baixo Juruá)

Anurans (Amphibia: Anura) of the Brazilian state of Amapá, eastern Amazonia: species diversity and knowledge gaps

From genes to ecosystems: a synthesis of amphibian biodiversity research in Brazil

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