Nest-site Selection of the Greater Painted Snipe (Rostratula benghalensis benghalensis) in Fallow Fields of I-Lan, Taiwan
Resource
Taiwania, 56(3), 195-200
Journal
Taiwania
Journal Volume
56
Journal Issue
3
Pages
195-200
Date Issued
2011-09
Date
2011-09
Author(s)
Hsu, Y.H.
Severinghaus, L.L.
Abstract
Nest site quality often affects nest success and the fitness of avian breeders. Vegetation structure and water depth are possible factors evaluated in nest-site selection by ground nesting birds in wetlands. Vegetation structure may affect the predation risk, and water depth is linked to the possibility of being flooded. We examined these two factors in the nest site selection of a wetland bird, the Greater Painted Snipe (Rostratula benghalensis benghalensis), in I-Lan, Taiwan. We found 17 Greater Painted Snipe nests in wet fallow fields. By paired comparisons, we found the breeders tended to nest on sites with higher vegetation coverage and lower water depth than random sites. No significant difference was found in the vegetation height between the nest sites and the paired random sites. Five nests failed to hatch due to flooding or predation. The preference for nest sites with low water depth may be an effort to avoid being flooded and the preference for dense vegetation coverage at nest sites may be a response to predation risk.
Subjects
彩鷸、巢位選擇、掠食壓力、植物覆蓋度、水深。Greater Painted Snipe, nest-site selection, predation risk, Rostratula benghalensis benghalensis, vegetation coverage, water depth.
SDGs
Type
journal article
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