Mauritius olive white-eye

Zosterops chloronothos

Olive White-eye Mauritius

Olive white-eyes are a critically endangered and endemic passerine species of Mauritius. They are a socially monogamous species where pairs establish and defend territories year round. Although once widespread across Mauritius the species has suffered continuing range contraction and a crash in population size. In response to a declining mainland population a translocation was undertaken to the offshore and exotic predator free Ile aux Aigrettes. Ile aux Aigrettes is a coralline limestone island with a maximum altitude of 12 m a.s.l., with an endemic and regenerating coastal forest. Two exotic predators, feral cats and black rats, were eradicated from the island in 1991. Thirty-eight (38) individual olive white-eye have been released on the island between 2006 and 2010 and the population continues to grow in response to increasing management investment. In addition, the remnant mainland population is also monitored and management focuses on non-native predator control. All of this work is undertaken by the Mauritian Wildlife Foundation.

Our work with olive white-eye’s started when John first visited Mauritius in November 2012 and met with Carl Jones and Mauritian Wildlife Foundation staff including Vikash Tatayah (Conservation Director), Nicolas Zuël (Fauna Manager) and Christelle Ferrière (Olive white-eye project coordinator). Since that time, John and Stefano have been assisting the Mauritian Wildlife Foundation wherever we can be useful with olive white-eye management. Most importantly we have helped study and refine supplementary feeding management on Ile aux Aigrettes. We have also provided advice and assistance to Gwen Maggs, of ZSL, who has recently submitted her PHD focussing on olive white-eye conservation.

For more information on our involvement please check out the collection of relevant news posts below or contact us for more information.