KUKILA (E-Journal)
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Diversity of birds captured by mist-netting in the understorey of Gunung Gading National Park, Sarawak, Borneo
Full text linkThe diversity of understorey birds at Gunung Gading National Park was examined from November 2011 to April 2012 using mist nets with total effort of 177 nets days, revealed 114 individuals representing 13 families and 38 species. Including previous studies, a total of 62 bird species have been netted in Gunung Gading National Park. The most diverse families were Pycnonotidae and Timaliidae, both with 9 species captured, followed by Muscicapidae represented by 4 species. The bird diversity (H’= 3.18) was higher than that reported in previous studies. Cumulative results suggest that previous netting studies has been insufficient to reveal the total understorey bird diversity and the number of species netted and added shows little sign of tailing off suggests that additional effort is required
Waterbird Population Dynamics in the Middle Mahakam Wetlands of East Kalimantan over 23 years
Full text linkBetween 1988 and 2011, a total of 57 species of waterbirds, as well as twelve raptor and six kingfisher species regularly utilizing wetlands, were recorded in the Middle Mahakam Wetlands of East Kalimantan, Indonesia. Waterbirds included 27 shorebird species from five families, twelve herons (Ardeidae), six rails and crakes (Rallidae), four terns (Sternidae), three ducks (Anatidae) and two storks (Ciconiidae). Based on IUCN (2013) criteria, six listed species are threatened: one (White-shouldered Ibis) is Critically Endangered, another (Storm's Stork) is Endangered and four (Chinese Egret, Lesser Adjutant, Wallace's Hawk-Eagle, Blue-banded Kingfisher) are Vulnerable. The Middle Mahakam Wetlands are one of Borneo’s most important wetland areas. They are part of a highly dynamic landscape that has historically changed its appearance many times. Today, the birds of these unique wetlands are endangered by a plethora of threats comprising large scale land conversion, fire, hunting and live capture of waterbirds, illegal logging and pollution. Despite the considerable efforts of local NGOs to address some of these issues, conservation measures are still limited and insufficient to protect this natural asset
New and significant avifaunal records from Batam and Bintan Islands, Riau Archipelago
Full text linkObservations made during 2000-2003 and 2012, mainly in estuarine and other coastal habitats, increase the list of bird species known from Batam and Bintan islands by 15 (to 137) and two species (to 181) respectively. These records include five species new for the Riau Archipelago (Red-tailed Tropicbird Phaeton rubricauda, Cattle Egret Bubulcus ibis, Wood Sandpiper Tringa glareola, Curlew Sandpiper Calidris ferruginea and House Crow Corvus splendens). We also present additional records of species previously noted as uncommon or of restricted distribution in the region. Differences between the Riau Archipelago and nearby Singapore in the total number of known bird species (229 and 375 species, respectively) may be partly due to their relative isolation from mainland Southeast Asia, but the much greater survey effort on Singapore over many years must also be a significant factor. Additional, hitherto unpublished, observations by birdwatchers are sought to assess the relative importance of these explanations
