中国扬子鳄保护存在的主要问题及管理对策研究

在调查分析扬子鳄野生及饲养种群保护现状的基础上,提出了当前中国扬子鳄保护存在的主要问题:野生扬子鳄栖息地岛屿化严重及自然保护区管理体制的缺陷;饲养种群基础设施规模的局限及没有建立完整谱系资料等。同时提出了相应的管理对策:改变保护区的管理体制,恢复扬子鳄丘陵人工湿地型栖息地及建立扬子鳄成片滩涂型湿地栖息地;加大对宣城扬子鳄繁殖研究中心基础设施建设的投入,加快饲养种群的遗传谱系建设,开展扬子鳄种群生存力分析及有效种群大小评估。

Research on major problems in conservation of Chinese alligator sinensis and management strategies

Based on the investigation about the conservation status of wild and breeding populations of alligator sinensis,our research put forward major problems about the current conservation of Chinese alligator: Including severe habitat fragmentation and the defects of the current Nature Reserve Management System;Limited basic facilities and incomplete pedigree information result in significant decrease in fertilization and hatching rate.We also propose some corresponding management strategies:To change the management system of protected areas,restore the existing hilly and wetland-type habitats and to build the sheet-type of wetland habitats for alligator sinensis;to increase the investment to the breeding and research center in Xuancheng,accelerate to complete the pedigree information,launch PVA(population viability analysis) and evaluate the effective population of each breeding population.