ISSN : 1229-3857(Print)
ISSN : 2288-131X(Online)
ISSN : 2288-131X(Online)
Korean Journal of Environment and Ecology Vol.38 No.5 pp.451-458
DOI : https://doi.org/10.13047/KJEE.2024.38.5.451
DOI : https://doi.org/10.13047/KJEE.2024.38.5.451
Proposing Tree Species and Branch Thickness for Perches to Aid the Wild Adaptation of Artificially Bred Crested Ibis
Abstract
Reintroduction through artificial breeding is recognized as a last resort for conserving species at risk of extinction. In South Korea, efforts to restore the locally extinct crested ibis began in 2008 with the introduction of a pair from China, followed by artificial breeding. From 2019 to 2023, a total of 290 individuals were released in eight events. Apart from genetic concerns, the success of reintroduction hinges on the creation of training grounds resembling natural habitats. This study aimed to propose the types and specifications of perching structures most commonly used for rest and disturbance avoidance by crested ibis. The released ibis predominantly utilized Pinus densiflora, Pinus thunbergii, and Quercus accutissima with heights around 5 meters and branch diameters ranging from 5 to 15 (9.17± 4.94)㎝ in their natural habitats, suggesting the necessity of installing perching structures of similar dimensions in release and breeding sites. However, ensuring habitat similarity solely through perching structures has limitations, underscoring the need for further research on feeding site structures, nest materials, and tree species used for nesting.