White-browed Antpitta (Hylopezus ochroleucus): downlist to Least Concern?

This discussion was first published  as part of the 2010 Red List update, but remains open for comment to enable reassessment in 2014.

White-browed Antpitta Hylopezus ochroleucus is scarce and local in the interior of north-east Brazil in Piauí and Ceará south to south Bahia and north Minas Gerais. It is listed as Near Threatened on the IUCN Red List because it was thought to have a restricted range that approaches the threshold for listing as Vulnerable (<20,000 km2) combined with severely fragmented habitat or occurrence at approximately ten or fewer locations and a continuing decline in its habitat, population size or number of locations/sub-populations.

However, this species has been mapped by Natureserve/BirdLife International as having an estimated Extent of Occurrence (EOO) of 546,000 km2, hence it does not appear to approach the IUCN thresholds and appears to warrant downlisting to Least Concern. However, if the species has experienced declines over the past three generations (10 years, BirdLife International unpubl. data) approaching 30% it may warrant listing as Near Threatened under the A criterion (population declines). Given its relatively large range size it seems unlikely that this species will have a population approaching 10,000 mature individuals so it would not qualify as threatened or Near Threatened on population size under the C criterion.

Comments on the population trends of this species and its proposed downlisting are welcomed.

(This discussion was started as part of the 2010 Red List update)

Related posts:

  1. Archived 2010-2011 topics: Elusive Antpitta (Grallaria eludens): downlist to Least Concern?
  2. Archived 2011-2012 topics: Buff-browed Chachalaca (Ortalis superciliaris): downlist to Least Concern?
  3. Archived 2010-2011 topics: Caatinga Antwren (Herpsilochmus sellowi): downlist to Least Concern?
  4. Archived 2012-2013 topics: Pale-throated Pampa-finch (Embernagra longicauda): downlist to Least Concern?
  5. Archived 2010-2011 topics: Sooty Ant-tanager (Habia gutturalis): downlist to Least Concern?
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5 Responses to White-browed Antpitta (Hylopezus ochroleucus): downlist to Least Concern?

  1. Glauco Kohler says:

    In my opinion it is not prudent to get down this species from it’s threat category, given it’s way of life (species with little capacity for flight and which lives in soil) coupled with the level of environmental degradation of the biome to which it is associated. The Caatinga is suffering from the pressure of logging, and in some areas, agricultural expansion. Since it is a vegetation type of short stature and the forest floor naturally more open, the impacts felt throughout the fauna associated with this are large scale. In February 2008 we undertook a survey of birds in the state of Piauí, northeast Brazil, an area of transition between Caatinga and Cerrado, between the cities of Bertolinia, Manoel Emidio, Colonia do Gurguéia and Eliseu Martins, and H. ochroleucus was found in only one location (near Manoel Emidio. It may be a typical case of sub sampling or low detectability of the species, but the fact is that it seems to be not common locally.

    Cheers

    Glauco Kohler

    • Edson Ribeiro Luiz says:

      I agree with Glauco. H.ochroleucus is dependent on a type of savanna vegetation, but closed, it is they who have been targeted for removal of wood for various purposes throughout the Northeast of Brazil. In Boa Nova in Bahia did sampling in the mata-de-cipó in the last nine years and is one of the species with the lowest index of abundance in the area. In Minas Gerais, especially in the Valley Jequnhonha the situation seems to be slightly better for the species, where the fragments of the municipality of Araçuai (for example) is common to abundant. Of all kinds agree for now not downgrade the category of species. Thanks for the opportunity.

  2. Andy Symes says:

    Preliminary proposals

    Based on available information, our preliminary proposal for the 2014 Red List is to pend the decision on White-browed Antpitta Hylopezus ochroleucus and keep this discussion open until early 2015, while leaving the current Red List category unchanged in the 2014 update.

    There is now a period for further comments until the final deadline of 31 March, after which recommended categorisations will be put forward to IUCN.

    The final Red List categories will be published on the BirdLife and IUCN websites in mid-2014, following further checking of information relevant to the assessments by both BirdLife and IUCN.

  3. Andy Symes says:

    Recommended categorisation to be put forward to IUCN

    Based on available information and comments posted above, our recommended categorisation to be put forward to IUCN for the 2014 Red List is to:

    list H. ochroleucus as Near Threatened, approaching the thresholds for Vulnerable under criterion A2c+3c+4c – change to the preliminary proposal.

    The final Red List category will be published on the BirdLife and IUCN websites in mid-2014, following further checking of information relevant to the assessment by both BirdLife and IUCN.

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