Conservation status

BirdLife International has produced a review of globally threatened birds, and an account of the Important Bird Areas of Africa. The major threat to weaver species is habitat loss, since some of them have very restricted ranges. Three island fodies are threatened both by habitat loss and introduced predators on Mauritius, Seychelles, and Rodrigues, respectively. Foudia rubra may be Critically Endangered, whereas F. sechellarum and F. flavicans are currently regarded as Vulnerable. The Asian yellow weaver (Ploceus megarhynchus) is a grassland species with a restricted range in India. Although the

Asian golden weaver (Ploceus hypoxanthus) occurs in several countries, it is uncommon and regarded as Near Threatened.

On mainland Africa, the golden-naped weaver (P. aure-onucha) and the yellow-footed weaver (P. flavipes) are both known only from the Ituri Forest, and have been seen just a few times in the last 30 years. Their canopy habitat and the political problems in this region make it difficult to obtain accurate information. Four localized species in West Africa, Bannerman's weaver (P. bannermani), Bates's weaver (P. batesi), the Gola malimbe (Malimbus ballmanni) and the Ibadan malimbe (M. ibadanensis), occur in forest that is disappearing rapidly throughout this region. The situation is most critical for the Ibadan malimbe, which has the smallest range. Two little-known species, the Loango weaver (P. subpersonatus) on the coastal strip and the black-chinned weaver (P. nigrimen-tum) in open savanna, range from Gabon southwards towards Angola.

In East Africa, Clarke's weaver (P. golandi) is restricted to the Arabuko-Sokoke Forest in Kenya, while the Tanzanian mountain weaver (P. nicolli) is found in relict forest patches on the Usambara Mountains and a few other sites. Fortunately both areas are now the site of active conservation programs. Agricultural changes in the highland grasslands of Kenya are a potential threat to Jackson's widow, while Fox's weaver (P. spekeoides) is apparently confined to one lake system in central Uganda, but remains unstudied. The Kilombero weaver (P. burnieri) was a surprising discovery in Tanzania, described in 1990 and evidently limited to a small area.

0 0

Post a comment