Archived 2014 discussion: Cameroon Montane Greenbul (Andropadus montanus): downlist to Least Concern?

This discussion was first published as part of the 2013 Red List update, but remains open for comment to enable reassessment in 2014.

BirdLife species factsheet for Cameroon Montane Greenbul

Cameroon Montane Greenbul Andropadus montanus is restricted to the highlands of west Cameroon and the Obudu plateau and Mt Gangirwal in eastern Nigeria. In Nigeria, it is reportedly still relatively common (P. Hall in litt. 1999). In Cameroon, it is reportedly not uncommon on Mt Oku (F. Maisels in litt. 1998), scarce on Mt Cameroon (Stuart 1986), locally common in the Rumpi Hills, common in the Bakossi Mountains (Dowsett-Lemaire and Dowsett 1998) and very common on Mt Manenguba, and has recently been found on nearby Mt Nlonako (Dowsett-Lemaire and Dowsett 1999).

It is currently listed as Near Threatened under criterion B1ab(i,ii,iii) of the IUCN Red List because it was thought to have a moderately small range (Extent of Occurrence [EOO] approaching 20,000km2), threatened by habitat clearance and degradation. However, recent remapping has shown that this species’s range is larger than previously thought, with an estimated EOO of 61,300km2. This suggests that this species no longer qualifies as Near Threatened under the range size criterion, on the basis that the EOO does not approach 20,000km2, and may warrant downlisting to Least Concern.

The global population size has not been quantified, although the species is described as variously scarce to common in different parts of its range (del Hoyo et al. 2005). The population is, however, suspected to be in decline owing to ongoing habitat loss and degradation (del Hoyo et al. 2005). If there is sufficient evidence to suggest that the population approaches 10,000 mature individuals, it is in continuing decline and all subpopulations approach 1,000 mature individuals, this species would qualify as Near Threatened under criterion C2a(i).

Information is requested on the distribution, population size and trends of this species, and any further comments are welcome.

References:

Dowsett-Lemaire, F. and Dowsett, R. J. (1998) Surveys of Oku Mt and other IBAs in NW Province (Cameroon), February-March 1998.

Dowsett-Lemaire, F. and Dowsett, R. J. (1999) Survey of birds and amphibians on Mt Manenguba, Mt Nlonako, north Bakossi and around Kupe in 1988-99.

Related posts:

  1. Archived 2012-2013 topics: Grey-headed Greenbul (Phyllastrephus poliocephalus): downlist to Least Concern?
  2. Archived 2014 discussion: Crossley’s Ground-thrush (Zoothera crossleyi): downlist to Least Concern?
  3. Archived 2010-2011 topics: Rufous Fishing-owl (Scotopelia ussheri): downlist to Vulnerable?
  4. Archived 2011-2012 topics: Green-tailed Bristlebill (Bleda eximius): eligible for downlisting?
  5. Archived 2011-2012 topics: Yellow-casqued Hornbill (Ceratogymna elata) and Brown-cheeked Hornbill (Bycanistes cylindricus): request for information
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3 Responses to Archived 2014 discussion: Cameroon Montane Greenbul (Andropadus montanus): downlist to Least Concern?

  1. Andy Symes says:

    The following comments were received from Françoise Dowsett-Lemaire on 20 August 2013:

    Poliolais lopezi, Phyllastrephus poliocephalus, Andropadus montanus, Zoothera crossleyi: all are proposed for down-listing to “least concern”. This seems unwise as the montane and semi-montane forests of W. Cameroon are under increasing pressure of deforestation for gardens (e.g. Kupe), and especially in recent years for establishing vast Oil Palm plantations. This has encroached upon some of the Bakossi block of forest, for instance; I don’t have time to carry out a full enquiry into this, but BirdLife ought to.

  2. Andy Symes says:

    Preliminary proposals

    Based on available information and comments posted above, our preliminary proposal for the 2014 Red List would be to treat Cameroon Montane Greenbul Andropadus montanus as Near Threatened, approaching the threshold for Vulnerable under criterion A3c.

    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

    Following further review, there has been no change to our preliminary proposal for the 2014 Red List status of this species.

    The final categorisation will be published later in 2014, following further checking of information relevant to the assessment by BirdLife and IUCN.

Comments are closed.