Lesser Nothura (Nothura minor): uplist from Vulnerable to Endangered?

This discussion was first published as part of the 2016 Red List update. At the time a decision regarding its status was pended, but to enable potential reassessment of this species as part of the 2018 Red List update this post remains open and the date of posting has been updated.

BirdLife species factsheet for Lesser Nothura

The Lesser Nothura has been recorded from very few sites over a large range in south-central Brazil (S Mato Grosso, S Goiás and Minas Gerais S to São Paulo; possibly extinct in Santa Catarina), and was more recently discovered in north-east Paraguay (Mazar Barnett et al. 2004 , H. del Castillo in litt. 2003, 2007), where surveys have revealed a minimum of 14 calling birds in three different areas (Mazar Barnett et al. 2004). There are no recent records from Mato Grosso, Mato Grosso do Sul or a number of sites in the states mentioned above, indicating a potentially large contraction in range, and rapid and extensive conversion of cerrado grasslands is thought to be causing a rapid population reduction. The population has been estimated to be 2,500-9,999 mature individuals, fragmented over a large range, and the species has been listed as Vulnerable under Criterion C2a(i).

In the Brazilian Red List assessment for birds (MMA 2014), the Area of Occupancy of the Lesser Nothura has been estimated at 200km2 and the species has been listed as Endangered under Criterion B2ab(i,ii). The species’s assessment on the Brazilian Red List can be accessed here.

Up-to-date information is requested on the species’s Area of Occupancy in Paraguay. Confirmation of a total area of occupancy of below 500km2 would likely qualify the species to be listed as Endangered under criterion B2ab on the global Red List. Comments on the proposed uplisting are welcome.

References:

Mazar Barnett, J.; Klavins, J.; del Castillo, H.; Coconier, E. & Clay, R. 2004a. Nothura minor (Tinamidae) a globally threatened Cerrado species new to Paraguay. Ararajuba, 12: 153–155.

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.

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3 Responses to Lesser Nothura (Nothura minor): uplist from Vulnerable to Endangered?

  1. James Westrip (BirdLife) says:

    Based on available information, our proposal for the 2016 Red List would be to pend the decision on this species and keep this discussion open until 2017, while leaving the current Red List category unchanged in the 2016 update.

    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.

  2. Hannah Wheatley (BirdLife) says:

    Preliminary proposals

    Based on available information, our proposal for the 2017 Red List would be to pend the decision on this species and keep this discussion open until 2018, while leaving the current Red List category unchanged in the 2017 update.

    Final 2017 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.

  3. Claudia Hermes (BirdLife International) says:

    Based on available information, our preliminary proposal for the 2018 Red List would be to list:
    Lesser Nothura as Vulnerable under criterion C2a(i).
    There is now a period for further comments until the final deadline in mid-July, 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 the initial proposal.
    The final 2018 Red List categories will be published on the BirdLife and IUCN websites in November, following further checking of information relevant to the assessments by both BirdLife and IUCN.

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