
Birds of a ‘hyper-disturbed’ rainforest remnant: volunteer surveys at Lake Eacham on the Atherton Tablelands, Far North Queensland, 1993-1998
Remnant protected areas are essential for the survival of rainforest bird species within agricultural landscapes. The Lake Eacham section of Crater Lakes National Park on the Atherton Tablelands, Far North Queensland, is a 450 ha remnant of mid-altitude tropical rainforest in the Wet Tropics World Heritage Area, surrounding a 52 ha volcanic crater lake, and 3 km from intact forest. It has been ‘hyper-disturbed’ by edge effects and periodic tropical cyclones, and has high tourist visitation rates. From 1993-1998 a volunteer group, the Tablelands National Park Volunteers, conducted monthly bird surveys in three sites. These sites supported a significant rainforest avifauna, with 7,496 bird records of 87 species. Most birds were dependent or largely dependent on rainforest, including 28 Wet Tropics endemic species or subspecies of which four were rainforest obligates. Arboreal insectivores were most abundant, followed by disperser frugivores. Birds seen included nine threatened and four near threatened species. The suite of species at Lake Eacham was comparable with that found in nearby intact forest. We believe this important remnant should be resurveyed, as recent surveys in intact rainforest in the region have detected declines in a number of species including 17 that we recorded as common or abundant. Further, two severe tropical cyclones have impacted the Park since 1998 and Lake Eacham is central to two major revegetation linkage projects, the Peterson Creek and Lakes Corridors. As the volunteer group disbanded in 2016, we provide the complete data as a supplementary file, to give others the opportunity for resurvey.
