Anuran species composition of Cancão Municipal Natural Park, Municipality of Serra do Navio, Amapá state, Brazil

Abstract

In this study, the first survey of anuran species in the Cancão Municipal Natural Park is presented, a protected area of approximately 370 hectares of Amazonian forest located in the northwest center region of the state of Amapá, Brazil. The work was performed during the dry and rainy season, through active visual and auditory survey, totaling 216 man hours of sampling effort. Forty-nine species of anuran amphibians were recorded in the Cancão Municipal Natural Park, including three new records: Hyalinobatrachium iaspidiense, Pristimantis cf. ockendeni, and Scinax garbei. Three species, Hyalinobatrachium iaspidiense, Ameerega pulchripecta, and Anomaloglossus baeobatrachus, are listed as Data Deficient and one is listed as Vulnerable (Atelopus hoogmoedi) according red lists of IUCN. The rarefaction curve cumulative species did not reach an asymptote, indicating that site has potential for species that have not yet been recorded. Nine species were represented by only one individual and were considered rare in the studied environments, eight species were defined as common, and the 32 remaining species were classified as having intermediary abundance. Our data indicated that Cancão Municipal Natural Park contains a considerable portion of the anurans species richness of Amapá state, turn the area into a place of great importance for the conservation of the anurans of the Eastern Amazon.

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

“…However, Amapá is contained only within the distribution range of R. major, thus we considered records of R. granulosa to be R. major. Within the group of R. margaritifera, Rhinella martyiFouquet, Gaucher, Blanc & Vélez- Rodriguez, 2007 is currently considered a junior synonym of Rhinella margaritifera (Laurenti, 1768)(Pereyra et al 2021), and we considered the records of R. martyi(Silva-e-Silva & Costa-Campos 2018; *Since we could not check voucher material, these records of O. helenae and O. cabrerai could be associated to either species or to both.…”

“…The municipality of Serra do Navio has been a study site for herpetologists, focused especially on anurans, since the late 1960s(Bokermann 1967), and the checklist bySilva-e-Silva & Costa-Campos (2018) was made based on monthly expeditions during one year. Also,Benício & Lima (2017) sampled the Amapá National Forest during the period coinciding with the most intense rains in the region, spending 56 days of sampling divided in three expeditions in two different years,2012.…”