The advertisement and release call of the Bahia forest frog Macrogenioglottus alipioi (Anura: Odontophrynidae) with comments on its morphometry, from southern Bahia, northeastern Brazil

Reproductive notes and larval development of Macrogenioglottus alipioi (Anura: Odontophrynidae) from the northern Atlantic forest

“…The advertisement call traits of Macrogenioglottus alipioi provided here are similar to those described by Mira-Mendes et al (2020) for a population from Bahia state with only the dominant frequency range slightly higher in our sample (430.7-516.8 Hz here, against 344.5-430.7 Hz from the Bahia sample). Although geographic variation in advertisement call of anurans was demonstrated in conspecific population of several species (e.g., Castellano et al 2000, Pröhl et al 2007, Baraquet et al 2015, we could not determine if this is the case here with only these data.…”

“…Reproductive Observations Abravaya and Jackson (1978) and Mira-Mendes et al (2020) observed reproductive activity of Macrogenioglottus alipioi from Santa Teresa (Espírito Santo state) and Uruçuca (Bahia state), respectively, and reported that individuals breed only after heavy rains in ponds. Herein, we corroborated this observation, adding the information that the activity occurs usually in the middle of the rainy season, and suggesting that the temporal reproductive pattern of M. alipioi is explosive (sensu Wells 1977), similar to almost all species in the family Odontophrynidae (e.g., , Araújo et al 2009, Godinho et al 2013, Valdez and Maneyro 2016, Malagoli et al 2016, which could explain why this species is rarely seen in the field.…”

“…Sexual dimorphism in snout-vent length occurs in most species of Odontophrynus (see references in Mira-Mendes et al 2020) and Proceratophrys (Boquimpani-Freitas et al 2002, Giaretta et al 2008, Santana et al 2010, Ávila et al 2011, Nunes et al 2015. Hartmann et al (2010) found significant sexual dimorphism in SVL of Macrogenioglottus alipioi from São Paulo state, with females bigger than males.…”

“…Although geographic variation in advertisement call of anurans was demonstrated in conspecific population of several species (e.g., Castellano et al 2000, Pröhl et al 2007, Baraquet et al 2015, we could not determine if this is the case here with only these data. Conversely, the pulsatile character of the note emitted by M. alipioi promptly distinguishes Macrogenioglottus from the pulsed note found in Odontoprynus and Proceratophrys species (Nascimento et al 2019and references therein, Magalhães et al 2020, Mira-Mendes et al 2020and references therein, Simões et al 2020, Rosset et al 2021, Santana et al 2021, Moroti et al 2022. The release call was also similar to that described by Mira-Mendes et al (2020), with the spectral and temporal parameters overlap (dominant frequency 387.60-559.90 Hz against 430.7 Hz in our sample and duration of the call of 0.032-0.314 s against 0.2-0.3 s in our sample) also suggesting that they belong to the same nominal taxon.…”