Poliolais lopezi


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Poliolais lopezi
Species Authority: (Alexander, 1903)
Common Name(s):
English White-tailed Warbler
French Camaroptère à queue blanche

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2014
Date Assessed: 2014-07-24
Assessor(s): BirdLife International
Reviewer(s): Butchart, S.
Contributor(s): Dowsett-Lemaire, F.
Facilitator/Compiler(s): O'Brien, A., Shutes, S., Symes, A. & Taylor, J.
This species is listed as Near Threatened because it is precautionarily suspected that it will undergo a moderately rapid population decline over the next three generations, owing to expected increases in rates of habitat loss, as driven mainly by the expansion of agriculture.

2012 Near Threatened

Geographic Range [top]

Range Description: Poliolais lopezi is restricted to the Obudu Plateau, eastern Nigeria (Elgood et al. 1994), the mountains of western Cameroon (Stuart 1986) and the island of Bioko (Equatorial Guinea) (Perez del Val 1996). It is locally common in its mainland range, but its status on Bioko is uncertain following reports of widespread deforestation since 1990 (del Hoyo et al. 2006).

Cameroon; Equatorial Guinea; Nigeria
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 2006).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It is found in dense, moist understorey of mid-altitude and montane forest, also in forest edge and clearings (Stuart 1986), occurring always in small numbers (F. Dowsett-Lemaire in litt. 2000). It prefers thick bush and tangled undergrowth, especially where Oreacanthus manni is growing (del Hoyo et al. 2006). It occurs at 800-2,200 m on Mt Cameroon, 1,950-2,200 on Mt Manenguba and at 900-1,900 elsewhere in Cameroon, and is found up to 1,600 on Bioko. It feeds mainly on insects, foraging close to the ground. Breeding occurs in October-February in Cameroon and November-January on Bioko. It is probably monogamous and territorial. The nest is a ball or bag of moss with a side entrance, hung 1-1.5 m above the ground from a fern or herb. One or two eggs are laid (del Hoyo et al. 2006).

Systems: Terrestrial

Threats [top]

Major Threat(s): Forest within the species's range is threatened by unsustainable exploitation for timber and firewood, uncontrolled burning and encroachment for agriculture (Stattersfield et al. 1998). The montane and semi-montane forests of western Cameroon are under increasing pressure from deforestation for gardens (e.g. on Mt Kupe), and in more recent years for establishing large-scale oil-palm plantations, leading to the encroachment of the Bakossi block of forest (F. Dowsett-Lemaire in litt. 2013).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
No targeted conservation action is known for this species.

Conservation Actions Proposed
Conduct surveys to obtain a total population estimate. Assess the status of the population and its habitat on Bioko. Monitor population trends through regular surveys. Monitor rates of habitat loss and degradation within its range. Protect important habitat for the species.

Citation: BirdLife International 2014. Poliolais lopezi. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 30 August 2015.
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