Comparison of cavity modification and community involvement as strategies for hornbill conservation in Thailand |
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Authors: | Pilai Poonswad Chumpol Sukkasem Sumsuding Hayeemuida Phitaya Chuailua Narong Jirawatkavi |
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Institution: | a Department of Microbiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand b National Park, Wildlife and Plant Conservation Department, National Park and Wildlife Research Division, Natural Resource Conservation Office, Khao Yai National Park, Bangkok, Thailand c National Park, Wildlife and Plant Conservation Department, National Park and Wildlife Research Division, Natural Resource Conservation Office, Sukarin National Park, Bangkok, Thailand d National Park, Wildlife and Plant Conservation Department, National Park and Wildlife Research Division, Natural Resource Conservation Office, Budo-Sungai Padi National Park, Bangkok, Thailand |
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Abstract: | We monitored breeding success of hornbills in Thailand for four sympatric species at Khao Yai National Park during 1981-2002 and six species at Budo-Sungai Padi National Park during 1994-2002. Within a 60 km2 study area at Khao Yai, the well protected area, use of available cavities ranged from 94% in 1984 to 50% in 1993. Competition for nesting cavities was 40% of cavities available indicating the shortage of suitable cavity. We monitored the cavity condition and modified 48 cavities and, between 1996 and 2000, these contributed annually 23-45% of nestings that were successfully fledged (n = 352). Within the 90 km2 at Budo Mountain, with heavy human disturbance, use of available cavities for nesting decreased from 81% in 1997 to 30% by 2001 and of successful fledging from 96% in 1997 to 55% in 1999, but both increased once our involvement with local communities had eradicated poaching and reduced disturbance. Competition for nesting cavities here was 26% of cavities available indicating the effect of poaching. Both strategies were successful in the short term but long-term management of cavities in large forest trees is required at Khao Yai and of forest disturbance at Budo. |
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Keywords: | Cavity modification Community involvement Hornbill conservation Thailand Tropical forests |
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