A stronger-than-normal El Nino alarms scientists over Galápagos wildlife
Context:
A forecast of a stronger-than-normal El Niño raises alarms among scientists about severe impacts on the Galápagos Islands’ unique wildlife and ecosystems. Officials warn that a 2.2°C rise in sea temperature could disrupt food chains, threaten iconic species such as Galápagos penguins and blue-footed boobies, and imperil coral and coastal flora. The anticipated stress may reduce vertebrate populations by around 20% this year and jeopardize vulnerable habitats like Scalesia forests. In response, a collaborative plan aims to eradicate invasive species, conserve seeds, and cultivate nurseries to protect endangered flora, with government, foundations, and NGOs coordinating efforts. The situation underscores the islands’ ecological sensitivity and the need for proactive conservation as climate phenomena intensify, with actions and monitoring likely to shape next steps.
Dive Deeper:
The U.S. NOAA projects the sea temperature in the equatorial Pacific to be about 2.2°C above normal, signaling a significantly stronger El Niño with broad ecological effects for the Galápagos archipelago.
Researchers warn that rising water temperatures will reduce plankton, algae, and smaller fish—the primary food sources for larger marine species—putting animals from penguins to sea lions at heightened risk of starvation and disrupted reproduction.
Key species identified as most vulnerable include the Galápagos penguin, blue-footed booby, petrel, flightless cormorant, albatross, and tuna, with potential cascading effects through the marine food web.
If El Niño arrives at the expected intensity, vertebrate populations on the islands could fall by at least 20% within the year, a statistic cited by a Charles Darwin Foundation scientist based on historical precedents.
On the flora side, the last remaining Scalesia forests and Opuntia cacti—endemic to the islands—face existential risk as heavy rains favor invasive plants that outcompete native species and disrupt established ecosystems.
In response, scientists and conservationists have launched a plan to eradicate invasive plants, collect seeds, and establish nurseries to safeguard threatened species, with coordination among the Ecuadorian government, foundations, and NGOs.
The Galápagos were designated a Natural World Heritage Site in 1978, underscoring the global significance of preserving its unique biodiversity amid climate-driven stress.