Archived 2016 topics: Buff-throated Purpletuft (Iodopleura pipra): uplist from Near Threatened to Endangered?

BirdLife species factsheet for Buff-throated Purpletuft

Buff-throated Purpletuft is found in north-east and south-east Brazil, in Paraíba, Pernambuco, Alagoas (A. Whittaker in litt. 1999), Bahia, Espírito Santo (E. O. Willis and Y. Oniki in litt. 1999), Rio de Janeiro and São Paulo. The species’s distribution may be continuous in the forested belt from mid Rio de Janeiro to southern São Paulo at Iguape and Registro. The species is listed as Near Threatened, approaching the criteria for A2c+3c+4c. It is suspected to be undergoing a moderately rapid population decline owing to habitat loss. The population is estimated to be at least 10,000 individuals, roughly equating to 6,700 mature individuals although this requires confirmation.

In the Brazilian Red List assessment for birds (MMA 2014) this species is listed as Endangered under C2a(i). The population is estimated to be <2,500 mature individuals with no more than 250 mature individuals in each subpopulation. It is suspected that the population is in decline owing to continued habitat loss and fragmentation. The species’s assessment on the Brazilian Red List can be accessed here.

Two subspecies are recognized (Snow 2016). I. p. leucopygia is found only in the Pernambuco Centre of Endemism. In the Brazilian Red List assessment for birds the subspecies is listed as Critically Endangered under C2a(i) with a population estimate of <250 mature individuals and no more than 50 mature individuals in each subpopulation. The population is suspected to be in continuing decline owing to habitat loss and fragmentation. The subspecies’s assessment can be accessed here. I. p. pipra is endemic to the Atlantic Forest of Bahia and south-eastern Brazil. In the Brazilian Red List assessment for birds the subspecies is listed as Endangered under C2a(i) with a population estimate of <2,500 mature individuals and no more than <250 mature individuals in each subpopulation. The population is suspected to be in continuing decline owing to habitat loss and fragmentation. The subspecies’s assessment can be accessed here.

Up-to-date information is requested on the species’s population size, subpopulation structure and population trend. Should it be confirmed that the species has a population of <2,500 mature individuals with <250 mature individuals in each subpopulation and that the population is undergoing a continuing decline it would likely qualify the species for Endangered globally under criterion C2a(i). Should the total population be estimated at <10,000 mature individuals the species may qualify for Vulnerable globally under criterion C2a(i). New information showing that the population has undergone a decline of >30%  over 10 years or three generations may qualify the species for uplisting to Vulnerable globally under criterion A2c+3c+4c.

Comments on the proposed uplisting are welcome as is confirmation of the population size, trend and subpopulation structure.

References:

MMA (2014) Lista Nacional Oficial de Espécies da Fauna Ameaçadas de Extinção. Portaria No 444, de 17 de dezembro de 2014. Diário Oficial da União – Seção 1. Nº 245, quinta-feira, 18 de dezembro de 2014.

Snow, D. (2016). Buff-throated Purpletuft (Iodopleura pipra). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.

This entry was posted in Archive, South America and tagged , , , , , , , , . Bookmark the permalink.

2 Responses to Archived 2016 topics: Buff-throated Purpletuft (Iodopleura pipra): uplist from Near Threatened to Endangered?

  1. I agree that the species has less than 2500 mature individuals in total and less than 250 individuals by subpopulation. In Bahia I.pripra is restricted to very well preserved forests and at higher altitudes (perhaps due to the latitudinal question, since in the southeast is seen in the lowlands). This is worrying because the mountains to the Atlantic Forest of southeastern Bahia are not as extensive. Boa Nova in the species is seen only in the best blocks, and few individuals. Strengthening the suggestion of the Brazilian list of the species is EN.

  2. James Westrip (BirdLife) says:

    Based on available information, our preliminary proposal for the 2016 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.

    There is now a period for further comments until the final deadline of 28 October, after which the recommended categorisations will be put forward to IUCN.

    Please note that we will then only post final recommended categorisations on forum discussions where these differ from those in the initial proposal.

    The final 2016 Red List categories will be published on the BirdLife and IUCN websites in early December, following further checking of information relevant to the assessments by both BirdLife and IUCN.

Comments are closed.