Rio de Janeiro sees rise in insects and amphibians due to heavy rains

Increased rainfall in Rio de Janeiro has led to a surge in the populations of insects and amphibians, such as crickets, katydids, and frogs, across various regions. September recorded the wettest period for the month in 29 years, with some areas experiencing 19 consecutive days of rain.

Experts from the Federal University of Rio de Janeiro (UFRJ) note that high humidity and increased food availability have created ideal conditions for reproduction. Pedro Souza Dias, coordinator of the Polyneoptera Laboratory at the National Museum, explained that elevated moisture provides more locations for egg-laying and supports food supplies. While reproductive periods typically begin in September and last through summer, increased activity was noted as early as August due to the unusual winter rains.

The presence of these species in urban areas, including garages, squares, and stairwells, contributes to local biodiversity and assists in controlling pest populations such as mosquitoes, flies, and cockroaches.