Selection strategy of Copsychus saularis for the location of artificial nest boxes
In order to study the nest site selection preferences and main influencing factors of Oriental Magpie-Robin(Copsychus saularis),a total of 150 artificial nest boxes were set up in Hainan Tropical Wildlife and Botanical Garden.The selection behavior of Oriental Magpie-Robin population reproduced in the artificial nest boxes was investigated during the breeding season in 2021 and 2022.The results showed that a total of 59 artificial nest boxes were used for reproduction by Oriental Magpie-Robin in two years.Among all the artificial nest boxes 90 were monitored in 2021,and 34 were used for reproduction;the utilization rate of the nest boxes was 37.78%,and the reuse rate was 14.71%.In 2022,60 nest boxes were monitored and 25 were used for reproduction;the utilization rate of the nest boxes was 41.67%,and the reuse rate was 16.00%.The reproductive success rates in these 2 years were 67.65%and 68.00%,respectively.The nest box with a closer distance from the water source(14.25±13.66 m)and a higher branch distance above the nest boxes(2.57±1.81 m)were preferred by the Oriental Magpie-Robin.At the same time,the height from the ground(2.82±0.53 m),the distance from the road(9.34±7.02 m),the herb coverage(34.07±28.15%),the trunk diameter at breast height of the nest tree(91.30±24.30 cm)and the ground exposure(30.00±22.40%)were also the important influencing factors.The main factors affecting the nest site selection of the Oriental Magpie-Robin are the degree of concealment(34.32%),the interference factor(25.76%)and the survival resource factor(17.65%).The quality of the nest sites mainly depends on the concealment and inaccessibility of nesting.In this study,the factors of concealment,interference and survival resources were considered by the Oriental Magpie-Robin in their selection of nest boxes.Subsequent studies will focus on the impact of urbanization on nest site selection and the reproductive success rate among different populations.
Copsychus saularisnest site selectionreproduction successHainan Tropical Wildlife Park and Botanical Garden
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