Scientists have studied tree frog choruses for the first time to analyze how individual songs influence
In a study published in Ecology Letters,an acoustic camera was used to extract individual songs from the overall sound array. The findings show that women tend to be attracted to songs at lower frequencies, while men synchronize their songs with other choir members. This allows individuals to more successfully select partners and mate.
Wood frogs Rana sylvatica mate earlyin the spring, when the ponds begin to thaw. Male frogs sing in chorus to attract females to the breeding grounds. Once the female frogs get there, individuals compete to identify pairs to mate with.
It is believed that males contribute to choir and socialthe structures in them influence mating. To confirm this, scientists studied how the composition of the chorus and individual songs affect the mating behavior of wood frogs. They conducted research on audio frequency and dispersion. This helped scientists figure out the secret of their successful mating.
It turned out that in the field, females givepreference for low-frequency sounds with high dispersion. At the same time, males that sing with low dispersion live closer to each other. This is an attempt to prepare for the inevitable competition for access to partners.
"It looks like choral screams are used forattracting female wood frogs to the breeding site, scientists explain. “Individual songs play a role in the positioning of male frogs in this area. Then a physical confrontation begins to decide who will mate.”
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