| Citation |
BirdLife International 2016. Dryocopus javensis . The IUCN Red List of Threatened Species 2016: e.T22681376A92903645. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22681376A92903645.en. Downloaded on 22 January 2020. |
Description |
JUSTIFICATION
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
RANGE DESCRIPTION
Dryocopus javensis occurs throughout Indomalaya, with populations in India, Myanmar, China, South Korea, Thailand, Indonesia, Malaysia, Brunei and the Philippines (del Hoyo et al. 2002). The subspecies cebuensis, endemic to the Philippine island of Cebu, has not been found in recent searches and is now considered extinct (Paguntalan and Jakosalem 2008).
DESCRIPTION
The global population size has not been quantified, but the species is reported to be local and uncommon throughout its range (del Hoyo et al. 2002), while the population in Korea has been estimated at < c.100 breeding pairs (Brazil 2009).
Trend Justification: The population is suspected to be in decline owing to ongoing habitat destruction (del Hoyo et al. 2002). |
