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作 者:魏洁[1] 曾夏招[1] 徐安利[1] 范海红[1] 樊晓丽[1] 丁国骅[1] 林植华[1]
机构地区:[1]丽水学院生态学院,丽水323000
出 处:《生态科学》2013年第1期104-109,共6页Ecological Science
基 金:国家自然科学基金资助项目(30970435;31270443);丽水市科技计划项目(20110426);浙江省大学生科技创新活动计划(2011R429008)
摘 要:以泽陆蛙(Fejervarya limnocharis)为模型动物,在浙江省温州市瑞安碧山镇涂厂村农田生境,通过近1个月时间的野外活动数量调查,检测出蛰期时间尺度和气温变化对白天泽陆蛙野外活动数量及活动个体大小的影响。结果显示:(1)月周期调查中泽陆蛙个体大小在不同采集时间上差异不显著,气温与个体大小相关亦不显著,气温与白天活动个体的数量呈显著正相关;(2)持续4天的泽陆蛙的活动数量的调查显示,上下午间差异显著,上午的活动数量显著少于下午,个体大小在上下午间差异不显著,气温与个体大小相关不显著,与白天活动个体的数量呈显著的正相关;(3)3月份时间推移的温度和数量的数据和4月初上午和下午数据的单因子协方差分析显示,两者回归关系具有平行性,但截距差异显著。据此我们推断气温是影响野外出蛰期泽陆蛙活动数量的重要的生态因子。Fejervarya limnocharis was used as a model animal,and its activities were investigated in the farmland of Tuchang Village of Bishan Town,Rui’an Wenzhou of Zhejiang Province for one month,so as to study the influence of post-hibernation and temperature on the activity and body size of F.limnocharis.Our results are as follows.(1) No significant difference in the body size of F.limnocharis was found at different times in a month.Air temperature was not related to body size,but it showed positive correlation to the active numbers of F.limnocharis in the field.(2) Investigation on the number of active F.limnocharis for 4 days showed that there was significant difference between the activity in the forenoon and afternoon.The number of active F.limnocharis in the forenoon was much lower than that in the afternoon,while body size of F.limnocharis was not significantly different between the forenoon and afternoon.Air temperature was not significantly related to body size,but positively correlated to the number of active F.limnocharis.(3) We analyzed the data of active number between long-term and short-term field investigation using single factor analysis of covariance with air temperature as the covariate,and found that the linear regressions of the two group data showed parallelism,while the intercept differences were significant.Therefore,we conclude that air temperature is a very important ecological factor which affects the number of active F.limnocharis during post-hibernation in the field.
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