Three years of La Nina-powered wet weather has sparked a rebound in the endangered Bogong moth population, which had plummeted to all-time lows over the past five years.
The Bogong moth almost disappeared, but this year its numbers have been higher across its summer alpine range, according to a snapshot published by theEstablishing the presence of these small moths is a Herculean task, particularly because they spend the summer across 20 alpine peaks in geographically remote regions.
Dr Peter Caley, a senior research scientist at CSIRO, has been tracking Bogong moths on Mount Gingera since 2014. This year, the outlook is positive.“Moth numbers atop Mount Gingera have been increasing over the past month, and are now at levels similar to before the severe 2017-2019 drought,” said Caley. “That it has taken three years of record-breaking rains for the moth numbers to recover [on Mount Gingera at least], speaks to how low the population must have fallen.
This summer was a pivotal moment for Bogong moths, according to Australian Conservation Foundation nature campaign Darcie Curruthers.
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