Differences in release calls of the hybrid water frog Pelophylax esculentus and its parental species Pelophylax ridibundus (Anura: Ranidae) in Ukraine

Fedorova, Anna; Shabanov, D. A.

doi:10.1007/s11756-022-01256-8

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…The calls of type 1 given in artificial amplexus agree in temporal structure and spectral features with the release calls previously recorded in P. ridibundus at several localities within the geographical range [44][45][46][47]. Given the structural similarity to the corresponding advertisement call of each taxon, but at a considerably lower dominant frequency, we suggest that this signal is directed to the acoustic communication with conspecifics.…”

Section: Validation Of Call Identificationsupporting

confidence: 76%

“…Accidental recordings of release call type 2 were obtained in Syria and Israel by Schneider, who misinterpreted this call type as territorial call 3 [41,42]. As early as in 1969, the same call type was recorded in P. esculentus in response to artificial amplexus, and later in diploid males from the Ukraine as well [47,48]. The similarity of this release call type in many water frog taxa suggests that it might function as a signal for interspecific communication, as several taxa often occur syntopically.…”

Section: Validation Of Call Identificationmentioning

confidence: 94%

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Diversity of Water Frogs Pelophylax spp. in Turkey: Do Mating Vocalizations Mirror Nominal Taxon Delimitation?

Sinsch,

Werding,

Kaya

2023

Animals

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Informed conservation management requires exact knowledge on the species diversity of the taxon group in focus within a geographic area, specifically on the occurrence of endemics. In Turkey, there are three water frog taxa of the genus Pelophylax; one is the widespread P. bedriagae, the other two are geographically restricted to either Thrace (P. ridibundus) or to the Anatolian Lake district (P. caralitanus). The species status of the Beyşehir frog P. caralitanus has been questioned since its proposal in 2001. We recorded and analyzed advertisement and release vocalizations at representative populations of Pelophylax taxa to assess the degree of inter-taxon differentiation and the potential for premating isolation. We found that P. bedriagae and P. caralitanus have much more similar vocalizations than both have compared to P. ridibundus. A functional bioacoustic premating barrier between bedriagae and caralitanus in syntopy does not exist according to our study. The low degree of bioacoustic differentiation mirrors earlier genetic, karyological, and morphological findings. We conclude that the Beyşehir frogs do not deserve species status and that P. caralitanus should be considered a junior synonym of P. bedriagae. Therefore, the number of endemic anuran species in Turkey decreases to one.

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Section: Validation Of Call Identificationsupporting

confidence: 76%