应用人工掩蔽物法监测两栖动物种群动态

Application of Providing Artificial Cover Method in Monitoring Amphibian Population

人工掩蔽物法是一种取法自然而加以人工改造的两栖动物监测方法。该法利用两栖动物昼伏夜出的习性,在其栖息环境中按照一定的方式布设人工掩蔽物来吸引两栖动物栖居,从而达到白昼监测其种类和种群数量的目的。该方法主要用于监测草地、湿地、灌丛、滩涂、松林等自然掩蔽物较少的生境,作者的监测实践和有关报道的监测工作证实,此方法对于习居于这类生境中的陆生有尾类和无尾类两栖动物具有较好的监测效果。

Amphibians are generally nocturnal and hide under covers in their habitat. Based on their hiding behavior, scientists have developed a standard method to monitor amphibian population in the day time by providing artificial covers made by nature materials for them in the sample sites. By checking and recording amphibians under the covers, the population parameters have been monitored. This method can be used in grassland, wetland, shrub, shallows, and conifer forest in where natural covers are seldom. We have used this method to monitor amphibians in Zoige and found out that this method worked well for tailed and tailless amphibians inhabited in the habitat mentioned above.