Publication

Five eradications, three species, three islands: Overview, insights and recommendations from invasive bird eradications in the Seychelles

Bunbury, N., Haverson, P., Page, N., Agricole, J., Angell, G., Banville, P., Constance, A., Friedlander, J., Leite, L., Mahoune, T., Melton-Durup, E., Moumou, J., Raines, K., van de Crommenacker, J. & Fleischer-Dogley, F., 2019, In: Island invasives: scaling up to meet the challenge (C.R. Veitch, M.N. Clout, A.R. Martin, J.C. Russell and C.J. West (eds.). IUCN, International Union for Conservation of Nature and Natural Resources, p. 282-288

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Copy link to clipboard

Documents

  • Five eradications, three species, three islands: overview, insights and recommendations from invasive bird eradications in the Seychelles

    Final publisher's version, 771 KB, PDF document

    Request copy

  • Nancy Bunbury
  • Pete Haverson
  • Nick Page
  • Julio Agricole
  • George Angell
  • Patrick Banville
  • Annabelle Constance
  • J. Friedlander
  • Laurent Leite
  • Terence Mahoune
  • Edme Melton-Durup
  • Jessica Moumou
  • Katherine Raines
  • Janske van de Crommenacker
  • Frauke Fleischer-Dogley
Management and eradication techniques for invasive alien birds remain in their infancy compared to invasive mammal control methods, and there are still relatively few examples of successful avian eradications. Since 2011, five separate eradication programmes for invasive birds have been conducted on three islands by the Seychelles Islands Foundation (SIF). Target species were prioritised according to their threat level to the native biodiversity of the UNESCO World Heritage Sites of the Seychelles, Aldabra Atoll and Vallée de Mai, which SIF is responsible for managing and protecting. Red-whiskered bulbuls (Pycnonotus jocosus) and Madagascar fodies (Foudia madagascariensis) occurred on Assumption, the closest island to Aldabra, which, at the time, had no known introduced bird species. The growing population of ring-necked parakeets (Psittacula krameri) on Mahé posed a threat to endemic Seychelles black parrots (Coracopsis barklyi) on Praslin where the Vallée de Mai forms their core breeding habitat. In 2012, red-whiskered bulbuls and Madagascar fodies were detected on Aldabra, so an additional eradication was started. All eradications used a combination of mist-netting and shooting. The intensive part of each eradication lasted three years or less. On Assumption, 5,279 red-whiskered bulbuls and 3,291 Madagascar fodies were culled; on Mahé, 545 parakeets were culled; and on Aldabra 262 Madagascar fodies and one red-whiskered bulbul were culled. Each programme underwent 1–2 years of follow-up monitoring before eradication was confirmed, and four of the five eradications have been successful so far. None of these species had previously been eradicated in large numbers from other islands so the successes substantially advance this field of invasive species management. The challenges and insights of these eradications also provide unique learning opportunities for other invasive avian eradications.
Original languageEnglish
Title of host publicationIn: Island invasives: scaling up to meet the challenge (C.R. Veitch, M.N. Clout, A.R. Martin, J.C. Russell and C.J. West (eds.)
PublisherIUCN, International Union for Conservation of Nature and Natural Resources
Pages282-288
Publication statusPublished - 2019
Externally publishedYes
Event The Island Invasives 2017 Conference - The University of Dundee and the South Georgia Heritage Trus, Dundee, United Kingdom
Duration: 10-Jul-201714-Jul-2017

Conference

Conference The Island Invasives 2017 Conference
CountryUnited Kingdom
CityDundee
Period10/07/201714/07/2017

Event

The Island Invasives 2017 Conference

10/07/201714/07/2017

Dundee, United Kingdom

Event: Conference

ID: 78042517