Diamantina Sabrewing (Campylopterus diamantinensis): Revise global status?

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1 Response to Diamantina Sabrewing (Campylopterus diamantinensis): Revise global status?

  1. Diego Mendes Lima says:

    In the assessment of the risk of extinction of the Brazilian fauna carried out in 2018, the species was categorized as Insufficient Data (DD).

    Evaluators: Crizanto Brito de Carvalho, Flávio Kulaif Ubaid, Gustavo Bernardino Malacco da Silva, Miguel Angelo Marini, Tarcisio Lyra dos Santos Abreu, Túlio Dornas de Oliveira, Wagner Nogueira Alves.

    Criterion A – in the 2018 assessment, we did not find long-term data from population estimates to track the decline by observed data (a) and the decline in AOO and EOO (c) a are not well understood. It is important to obtain better data on habitat loss in rupestrian fields above 1,000 m altitude in the southern portion of the Serra do Espinhaço within the temporal window (three generations or 10 years) of the species.

    Criterion B – The calculations of AOO (112 km2) and EOO (13,680 km2) reach the thresholds for categorizing threatened, however, they do not meet at least two of the sub-criteria. There is a lack of biological information to say if it is severely fragmented and if 50% of the population is separated with no gene flow. In addition, we do not have information on a top threat capable of using location. The population trend is unknown.

    Criterion C – in the assessment carried out in 2018, we did not find observed, estimated, projected and inferred data on the number of mature individuals and respective population decline.

    Criterion D – in the assessment carried out in 2018, we did not find population data on mature individuals and their AOO is greater than 20 km2 and more information is needed on the plausible future threats of taking the species to CR or EX status in the short term.

    Criterion E – in the 2018 assessment, we did not find PVA data.

    Campylopterus diamantinensis occurs in several relatively large protected areas and its habitat is not subject to major direct human disturbance (Vasconcelos et al., 2008; Vasconcelos & Rodrigues, 2010). However, the species is restricted to the highest peaks of the Serra do Espinhaço, a serious threat to it resulting from predicted climate changes (Lopes et al., 2017). It is also affected by fires, mining and the expansion of agricultural activities in its distribution area (W. Nogueira, pers., 2018). However, there is no information that allows an adequate assessment of its extinction risk.
    There is little information about the species, but we recognize the possibility that it may be threatened and future research may indicate a threat category.

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