The Top 5 Threats Facing Critically Endangered Bird Species

  Threat Percentage of Species Affected
1 Agriculture and aquaculture 65%
2 Invasive alien species 52%
3 Logging 43%
4 Hunting/trapping 41%
5 Residential & commercial develoment 20%
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 Facts
  1. Other threats to endangered birds include: climate change & weather, pollution, human fisheries intrusions & disturbance, energy production & mining, change in fire regime, water management, transportation & service corridors. (a.)
  2. A variety of invasive alien species threaten critically endangered birds, but mammals - in particular cats and rats - are the most important, impacting 75 species (88% of species are threatened by invasives). (a.)
  3. Invasive alien species cause a range of impacts, from reduced reproductive success (usually through eating eggs and chicks: 66%), direct mortality through predation and disease (60%), to ecosystem degradation (through invasive plants and herbivores modifying habitat structure: 45%). (a.)
  4. Although only 13% of critically endangered species are currently listed as threatened by climate change and associated severe weather events, this figure will undoubtedly increase rapidly in future. A total of 24 critically endangered species are currently listed as threatened by climate change and associated severe weather events. The effects of climate change on species are many and varied, but storms and flooding are currently the greatest threat to critically endangered birds. (a.)
  5. In terms of agriculture, subsistence or small-scale farming threatens 36% of species and the commercial agro-industry threatens 26%. (a.)
Top 5 facts sources:
  1. Birdlife International. (2008). "Critically Endangered Birds a Global Audit: A State of the World's Birds Report." Retrieved Jan, 2011.
Tags: Animals & Nature, Threatened & Endangered Species

Sources:  BirdLife International Critically Endangered Birds a Global Audit: "A State of the World's Birds Report".

List Notes: Data is the top 5 threats that affect the survival of critically endangered bird species. Critically Endangered species require a combination of several types of conservation responses. Encouragingly, there is good evidence that if appropriate actions are implemented, underpinned by sound science, adequate resources and political will, species can recover – even from the brink of extinction.
Threats Facing Critically Endangered Bird Species

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