A global threats overview for Numeniini populations: synthesising expert knowledge for a group of declining migratory birds

James W. Pearce-Higgins, Daniel J. Brown, David J. T. Douglas, José A. Alves, Maria Belliograzia, Pierrick Bocher, Graeme M. Buchanan, Rob P. Clay, Jesse Conklin, Nicola Crockford, Peter Dann, Jaanus Elts, Christian Friis, Richard A. Fuller, Jennifer A. Gill, Ken Gosbell, James A. Johnson, Rocio Marquez-Ferrando, Jose A. Masero, David S. MelvilleSpike Millington, Clive Minton, Taej Mundker, Erica Nol, Hannes Pehlak

Research output: Contribution to journalArticle

53 Citations (Scopus)
9 Downloads (Pure)

Abstract

The Numeniini is a tribe of thirteen wader species (Scolopacidae, Charadriiformes) of which seven are near-threatened or globally threatened, including two critically endangered. To help inform conservation management and policy responses, we present the results of an expert assessment of the threats that members of this taxonomic group face across migratory flyways. Most threats are increasing in intensity, particularly in non-breeding areas, where habitat loss resulting from residential and commercial development, aquaculture, mining, transport, disturbance, problematic invasive species, pollution and climate change were regarded as having the greatest detrimental impact. Fewer threats (mining, disturbance, problematic native species and climate change) were identified as widely affecting breeding areas. Numeniini populations face the greatest number of non-breeding threats in the East Asian-Australasian Flyway, especially those associated with coastal reclamation; related threats were also identified across the Central and Atlantic Americas, and East Atlantic flyways. Threats on the breeding grounds were greatest in Central and Atlantic Americas, East Atlantic and West Asian flyways. Three priority actions were associated with monitoring and research: to monitor breeding population trends (which for species breeding in remote areas may best be achieved through surveys at key non-breeding sites), to deploy tracking technologies to identify migratory connectivity, and to monitor land-cover change across breeding and non-breeding areas. Two priority actions were focused on conservation and policy responses: to identify and effectively protect key non-breeding sites across all flyways (particularly in the East Asian - Australasian Flyway), and to implement successful conservation interventions at a sufficient scale across human-dominated landscapes for species’ recovery to be achieved. If implemented urgently, these measures in combination have the potential to alter the current population declines of many Numeniini species and provide a template for the conservation of other groups of threatened species.
Original languageEnglish
Pages (from-to)6-34
JournalBird Conservation International
Volume27
Issue number1
Early online date1 Mar 2017
DOIs
Publication statusPublished - Mar 2017

Keywords

  • Bartramia
  • Charadrii
  • Conservation
  • Flyway
  • Limosa
  • Long-distance migrant
  • Numenius
  • Shorebird
  • Wader

Cite this