2016至2019年朱鹮野生种群收容救护现状分析

朱鹮(Nipponia nippon)野生种群目前仅分布在陕西省洋县及邻近的城固、西乡、南郑、汉台、勉县、宁强、留坝、汉阴等9个县区,数量达到2 500余只,但对其野外伤病和收容救治状况报道较少.陕西汉中朱鹮国家级自然保护区在2016至2019年的巡护和监测过程中,共发现并收容救治野生朱鹮伤病个体362只.本文利用双因...

Analysis on the Wild Population Rescue of Crested Ibis (Nipponia nippon) from 2016 to 2019

Objectives] The wild population of Crested Ibis (Nipponia nippon) is currently only distributed in Yangxian County and its nearby counties such as Chenggu, Xixiang, Nanzheng, Hantai, Mianxian, Ningqiang, Liuba and Hanyin in Shaanxi Province, with its population size gradually recovering to more than 2500 individuals. A total of 362 injured wild Crested Ibises were found and rescued in Hanzhong Crested Ibis National Nature Reserve during the patrol and monitoring from 2016 to 2019. In recent 20 years, the wild population of Crested Ibis is increasing and dispersing steadily, however, the injury and rescue of wild population have not been reported. Methods] In our study, we summarized the case sources, age structure, seasonal difference, rescued dates, injury situation and treatment effects of the rescued Crested Ibises by two-way ANOVA test. Results] We found that the number of young birds in rescued Crested Ibis was significantly higher than that of adults, and the young birds were mainly rescued in summer and adults in winter. Starvation, trauma, fracture, disease, falling from nests and disability were the most common reasons for rescued Crested Ibis. Rescued birds with starvation, trauma and falling from nests had significant higher recovery rate, however, disease and fracture caused significant higher mortality. Conclusion] The rescued Crested Ibis increased annually with seasonal differences. We suggest to improve the rescue capacity of the rescue center, and to establish the Crested Ibis rescue network system for improving the wildlife protection work.