Olfactory communication may contribute to reproductive isolation between pink and yellow iguanas on Wolf volcano
In a recent study published in the journal Scientific Reports, carried out within the framework of a long-term collaboration between the Directorate of the Galapagos National Park and the University of Rome Tor Vergata (Italy) and with the participation of the San Diego Zoo, the scientists indicated that femoral pore secretions could contribute to reproductive isolation between pink and yellow iguanas on Wolf volcano
According to research, pink and yellow iguanas secrete chemical compounds through their femoral pores, which prevents them from being recognized by other species to mate. This type of effective reproductive isolation is present in other species of lizards.
There is evidence suggesting that certain dietary traits can influence the type of chemicals produced in glandular secretions, so the availability of food could potentially affect the production and concentration of different chemical components in the two species.
“We are collecting more detailed information on temporal habitat use by the two species to fully test this hypothesis,” said Gabriel Gentile, team leader.
Source & Photo: GALAPAGOS NATIONAL PARK