A new study reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season.
A new study reveals that the rare Desertas Petrels , a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season. Contrary to other pelagic seabirds, these petrels do not avoid intense tropical cyclones but instead exploit the dynamic conditions for their benefit, providing new insights into the impact of cyclones on open ocean marine life.
The Desertas Petrels nest on the Bugio Island in Portugal, located off the western coast of North Africa. This island hosts the only known nesting colony of these pigeon-sized seabirds in the world, with fewer than 200 pairs residing on a plateau surrounded by steep cliffs. During their six-month breeding season, Desertas Petrels embark on extraordinary foraging journeys, often spending weeks at sea and flying roundtrips up to 7,500 miles across the Atlantic in search of food.
"As we've now discovered, Desertas Petrels follow hurricanes where prey have accumulated closer to the surface in the wakes of the storms," said Ummenhofer. "The cyclones present a highly valuable foraging opportunity for Desertas Petrels because the storms churn up mesopelagic prey from deep within the vertical column, giving the seabirds an easy meal at the surface," explained Ventura."While storms are typically seen as destructive, particularly in coastal areas, our research reveals that functional perturbance driven by storms can create new opportunities.
It had always been thought that the Mediterranean population of the European storm petrel -- the smallest seabird in the Mediterranean -- spent the year in this sea and that only a small part of the ...
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New study reveals oceanic seabirds chase tropical cyclonesA new study published today in Current Biology, 'Oceanic Seabirds Chase Tropical Cyclones,' reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season.
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