Unveiling the geographic distribution of Boana pugnax (Schmidt,&amp;nbsp;1857) (Anura, Hylidae) in Venezuela: new state records, range&amp;nbsp;extension, and potential distribution

Escalona, Moisés; Prieto‐Torres, David A.; Rojas-Runjaic, Fernando J. M.

doi:10.15560/13.5.671

Cited by 5 publications

(4 citation statements)

References 24 publications

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“…When there was more than one final model selected, we used the median of the results of all replicates as the final model (Cobos et al, 2019). Then, we converted the continuous models obtained for each season into binary (presence vs. absence) maps using the tenth percentile training presence threshold, considering the error variation within presence records from different sources (e.g., Escalona et al, 2017). This reduced commission errors (i.e., areas of over-prediction) in our final binary maps (Liu et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

At home in the tropics: seasonal niche-tracking by the Yellow-green Vireo, Vireo flavoviridis, an intratropical migrant

Ochoa-Gonzále,

Rojas-Soto,

Prieto-Torres

et al. 2023

Rev.Mex.Biodiv.

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Migratory birds move geographically by tracking specific climatic conditions through time. However, we lack information about the climatic conditions birds are tracking, especially in intratropical migrants, whose movements are contained inside the tropics. The Yellow-green Vireo Vireo flavoviridis is an intratropical migrant whose migration patterns remain only partially documented and understood. Using GBIF presence records and WorldClim monthly climatic layers, we reconstructed ecological niche for Yellow-green Vireo’ reproductive and non-reproductive seasons. Then, we used a niche overlap analysis, based on a PCA-env approach and similarity tests, to assess overlap in climatic niches between seasons. We also projected climatic niches onto their spring and fall migration to evaluate the climatic conditions tracked by the species in transitional months. Overall, models revealed significant geographic inter-prediction between seasons. Similarity analyses showed high niche overlap between seasons; however, they failed to reject the null hypothesis of niche similarity. As expected by the hypothesis of niche conservatism in the tropics, Yellow-green Vireo is a niche follower. This information will help to clarify evolution of intratropical migration and provide ecological information for future conservation plans.

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Section: Methodsmentioning

confidence: 99%

At home in the tropics: seasonal niche-tracking by the Yellow-green Vireo, Vireo flavoviridis, an intratropical migrant

Ochoa-Gonzále,

Rojas-Soto,

Prieto-Torres

et al. 2023

Rev.Mex.Biodiv.

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“…This name is widely used since the species is abundant, easy to spot, present in anthropic environments, and widely distributed. Although B. platanera and B. pugnax have been misidentified in the past (La Marca 1996;Escalona et al 2017), our intention is to use the folk nomenclature as the species epithet so that it can be easily remembered by non-taxonomic experts.…”

Section: Vocalization Of Boana Xerophylla North Of the Orinoco Rivermentioning

confidence: 99%

Integrative taxonomy reveals a new but common Neotropical treefrog, hidden under the name Boana xerophylla

Escalona

Marca

Castellanos³

et al. 2021

Zootaxa

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850

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Boana xerophylla is a common treefrog widely distributed in northern Brazil, Colombia, French Guiana, Guyana, Panama, Suriname, Trinidad and Tobago, and Venezuela. A recent study found molecular, acoustic, and morphometric differences between the populations located on opposite sides of the Orinoco River. Here, we carry out an updated molecular phylogenetic analysis, including new samples from all the countries along the distribution area, and analyzed additional call recordings from Brazil, Colombia, French Guiana, Panama, Trinidad and Tobago, and Venezuela. Our phylogenetic inference reveals three geographically restricted lineages: one in the eastern Guiana Shield (corresponding to B. xerophylla sensu stricto), another in the western Guiana Shield, and a third one north of the Orinoco River. Morphological and acoustic data agree with the differentiation between the populations north of the Orinoco River and the eastern Guiana Shield despite the low genetic p-distances observed (16S rRNA: 0.7–2.2 %). We argue that the populations north of the Orinoco River correspond to a new species, sister of B. xerophylla. We name and describe Boana platanera sp. nov. from the southern versant of the Cordillera de Mérida (08º48’26’’ N, 70º30’46’’ W, WGS 84; 947 m asl), Venezuela, and refer all the populations north of the Orinoco River currently identified as B. xerophylla to this species. The new species can be readily diagnosed from B. xerophylla (characters of the latter in parentheses) by a pale orange-yellow or light brown dorsal coloration (dark brown to green), palpebral membrane with dark pigments (pigments absent); pericloacal region dark brown (cream), advertisement call with shorter first note length than B. xerophylla. This study represents an empirical example regarding false negatives behind genetic thresholds for species discovery, appraising the use of integrative taxonomic approaches.

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“…According to data from the Herpetology Museum of the University of Antioquia (MHUA), approximately 30% of Colombia's amphibian species are present in this territory, represented by 230 species (~34% of Colombia's species) [16]. The nocturnal tree frog B. pugnax (Schmidt, 1857), which ranges in size from 68.9 to 77.9 mm, lives in the open lowlands of Southern Central and Northern South America [17]. Recent studies also suggested that the immune response may be incredibly efficient in frogs of the genus Boana sp., highlighting the potential of this genus in discovering new ABC peptides from the Colombian herpetofauna [18].…”

Section: Introductionmentioning

confidence: 99%

In Silico Selection and Evaluation of Pugnins with Antibacterial and Anticancer Activity Using Skin Transcriptome of Treefrog (Boana pugnax)

et al. 2021

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In order to combat bacterial and cancer resistance, we identified peptides (pugnins) with dual antibacterial l–anticancer activity from the Boana pugnax (B. pugnax) skin transcriptome through in silico analysis. Pugnins A and B were selected owing to their high similarity to the DS4.3 peptide, which served as a template for their alignment to the B. pugnax transcriptome, as well as their function as part of a voltage-dependent potassium channel protein. The secondary peptide structure stability in aqueous medium was evaluated as well, and after interaction with the Escherichia coli (E. coli) membrane model using molecular dynamics. These pugnins were synthesized via solid-phase synthesis strategy and verified by Reverse phase high-performance liquid chromatography (RP-HPLC) and mass spectrometry. Subsequently, their alpha-helix structure was determined by circular dichroism, after which antibacterial tests were then performed to evaluate their antimicrobial activity. Cytotoxicity tests against cancer cells also showed selectivity of pugnin A toward breast cancer (MFC7) cells, and pugnin B toward prostate cancer (PC3) cells. Alternatively, flow cytometry revealed necrotic cell damage with a major cytotoxic effect on human keratinocytes (HaCaT) control cells. Therefore, the pugnins found in the transcriptome of B. pugnax present dual antibacterial–anticancer activity with reduced selectivity to normal eukaryotic cells.

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Unveiling the geographic distribution of Boana pugnax (Schmidt, 1857) (Anura, Hylidae) in Venezuela: new state records, range extension, and potential distribution

Cited by 5 publications

References 24 publications

At home in the tropics: seasonal niche-tracking by the Yellow-green Vireo, Vireo flavoviridis, an intratropical migrant

At home in the tropics: seasonal niche-tracking by the Yellow-green Vireo, Vireo flavoviridis, an intratropical migrant

Integrative taxonomy reveals a new but common Neotropical treefrog, hidden under the name Boana xerophylla

In Silico Selection and Evaluation of Pugnins with Antibacterial and Anticancer Activity Using Skin Transcriptome of Treefrog (Boana pugnax)

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