Nest Characteristics and Nest Site Selection of Tetraophasis obscurus in the Wanglang National Nature Reserve,Sichuan
The nest and nest site selection of birds are extremely important for their breeding success.Chestnut-throated partridge(Tetraophasis obscurus)is an endemic species in China and a class Ⅰ nationally key protected wildlife.In this study,the nest characteristics and nest site selection of T.obscurus were studied in the Wanglang National Nature Reserve(Sichuan Province,China)from March to July of 2021 and 2022,using follow-up observations and systematic search meth-ods.The results showed that(1)T.obscurus could build two types of nests(on the ground and in the tree),and preferred to nest in trees(88.24%,15/17);nest materials included bark,dead grass,feathers,needles and mosses.(2)All the nests were located at the base of Sabina saltuaria branches,with an average height of 3.05 m±0.23 m(1.64-4.45 m)from the ground and an average depth of 2.88 cm±0.07 cm(2.4-3.4 cm).(3)Nest sites frequently distributed in smaller slopes,higher herbaceous and deciduous coverage,better vegetation cover conditions,and closer water sources;the herba-ceous coverage and deciduous coverage were the key factors influencing the selection of nesting habitats,this indicated that the nest site selection of T.obscurus was associated with safety factors and food resources.The results of this study enrich the basic information on the breeding ecology of T.obscurus and provide scientific basis for species protection and habitat management.
Tetraophasis obscurusnestnest site selectionpheasantendangered species
NETL
NSTL
万方数据
