两栖类种群数量下降原因及保护对策

摘要/Abstract

摘要： 近几十年来,全球范围内的两栖类出现了较快的种群数量下降,包括部分物种的灭绝。引起两栖类种群数量下降的原因可能有:紫外线辐射、生境破碎和改变、生物入侵和捕食、环境污染、疾病、气候变化以及这些因素的相互作用,其中生境破碎和改变是主要原因,而引起各因素变化的全球变化可能是根本原因。应加强对两栖类种群动态的研究,探明其下降机制,制定相应的保护对策,减少两栖类的下降。

关键词: 重庆, 生态足迹, 生态承载量

Abstract: Amphibian populations have dramaticly declined globally over the past decades, including a number of species extinction. Causes of amphibian population declination may include ultraviolet radiation, habitat fragmentation and modification, changes of climate, diseases, invasive alien species and predation, environmental contamination and interactions among these factors. Habitat fragmentation and modification is the main cause. Global change leading to changes of these factors may be the basic reason. More studies on amphibian population should focus on the mechanism responsible for their declination. Some strategies should be put forward to stop this declination process.

Key words: Chongqing, Ecological footprint, Available ecological capacity

中图分类号:

Q958

武正军, 李义明. 两栖类种群数量下降原因及保护对策[J]. 生态学杂志, 2004, (1): 140-146.

WU Zhengjun, LI Yiming . Causes and conservation strategies of amphibian population declination[J]. cje, 2004, (1): 140-146.

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