首页|天目山不同海拔大蛾类种群多样性及时间动态

天目山不同海拔大蛾类种群多样性及时间动态

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[目的]阐明浙江天目山大蛾类种群在不同海拔上的关系以及时间动态变化,为天目山昆虫调查提供理论依据.[方法]采用灯诱法,于2022年5-8月在浙江天目山国家级自然保护区内,对不同海拔高度的大蛾类昆虫进行采集,并对大蛾类种群及时间动态进行了研究.[结果]共采集大蛾类昆虫3 367只,隶属25科269种.优势类群为尺蛾科Geometridae、草螟科Crambidae、天蛾科Sphingidae和夜蛾科Noctuidae.在海拔600~1 200 m内,大蛾类种群的Simpson指数、Shannon指数、Margalef丰富度指数和Pielou均匀度指数均较高,总体呈正相关.在海拔600~1 200 m梯度上,大蛾类的种-多度曲线趋向对数正态分布,其余海拔梯度符合生态位优先占领假说.7月的大蛾类物种数和个体数最多,稳定性较强.[结论]天目山的大蛾类种群对时间敏感,5-8月大蛾类物种和个体数先增加后减少;大蛾类种群多样性随着海拔的升高先增加后减少,中低海拔梯度间的相似性系数呈中等相似和极相似水平.图3表4参20
Population diversity and temporal dynamics of large moths at different altitudes in Mount Tianmu
[Objective]With the clarification of the relationships and temporal dynamics of large moth species in Mount Tianmu in Zhejiang Province,this paper aims to provide a theoretical basis for the insect investigation in Mount Tianmu.[Method]Large moth specimens were collected from Zhejiang Mount Tianmu National Nature Reserve at different altitudes during the four-month period from May to August in 2022 before a systematic analysis was conducted of them and their population temporal dynamics.[Result]A total of 3 367 large moth specimens were collected,belonging to 269 species of 25 families.The dominant taxa were the families Geometidae,Crambidae,Sphingidae and Noctuidae.At the altitude ranges of 600-1 200 m,the Simpson index,Shannon index,Margalef richness index and Pielou uniformity index were high,and the overall correlation was positive.The species-multidegree curve of large moths tended to be lognormal distribution at this altitude gradient,and the rest of altitude gradients were consistent with the niche priority occupation hypothesis.The number of large moth species was the largest with the strongest stability in July.[Conclusion]The large moth species were sensitive to time in Mount Tianmu with the number of species and individuals of them increasing at first and then decreasing from May to August.Species diversity of large moths increased at first and then decreased with the increase of altitude,and the similarity coefficient between medium and low altitude gradients was at medium and high levels.[Ch,3 fig.4 tab.20 ref.]

altitudelarge moth populationdiversity analysistemporal dynamicsMount Tianmu

胡瑞祺、方卫军、王义平

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浙江农林大学林业与生物技术学院,浙江杭州 311300

泰顺县百丈镇人民政府,浙江泰顺 325500

淳安县林业局,浙江淳安 311700

海拔 大蛾类种群 多样性分析 时间动态 天目山

2024

浙江农林大学学报
浙江农林大学

浙江农林大学学报

CSTPCD北大核心
影响因子:0.929
ISSN:2095-0756
年,卷(期):2024.41(3)
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