摘要
为阐明不同寄主植物蓟马优势种的种群数量与海拔之间的关系,在云南省昭通市大山包自然保护区1800~3200 m海拔开展了蓟马优势种的种群海拔梯度格局调查。使用回归分析、相关性分析和显著性差异分析等方法探讨了海拔及寄主植物对蓟马优势种种群个体数分布格局的影响。结果表明:大山包自然保护区蓟马优势种种群主要为西花蓟马和中华简管蓟马。随着海拔的增加,西花蓟马的数量在白花三叶草(r=-0.889,P<0.001)、少花紫菀(r=-0.822,P<0.001)和大叶醉鱼草(r=-0.487,P=0.065)上呈现下降的趋势,在珠光香青上西花蓟马数量随海拔升高显著增加(r=0.533,P=0.032);中华简管蓟马的数量随着海拔的增加在白花三叶草上分布呈下降的趋势(r=-0.770,P<0.001),在大叶醉鱼草(r=0.123,P=0.661)和珠光香青(r=0.419,P=0.005)上的分布呈增加的趋势,在少花紫菀上未监测到中华简管蓟马。西花蓟马数量在海拔3200 m与1800、2150、2500 m无显著数量差异,其余不同海拔间均存在显著数量差异(P<0.05);中华简管蓟马数量在海拔1800 m处最高,显著高于2150和2500 m,海拔2500 m处西花蓟马数量也显著高于2150 m(P<0.05),其余海拔间无显著数量差异。西花蓟马和中华简管蓟马为大山包自然保护区的优势种蓟马且西花蓟马的数量多于中华简管蓟马,在海拔1800~3200 m,入侵种西花蓟马数量随海拔升高持续减少,而本地种中华简管蓟马则呈现向高海拔区域集中、数量相对更高的聚集趋势。
To elucidate the relationship between the population size of dominant thrips species on different host plants and altitude,we examined the altitudinal distribution patterns of dominant thrips at elevations ranging from 1800 to 3200 m in the Dashanbao Nature Reserve,Zhaotong City,Yunnan Province.Regression analysis,correlation analysis,and significance testing were applied to explore the effects of altitude and host plants on the distribution patterns of dominant thrips species.The results showed that the dominant thrips populations were mainly composed of Frankliniella occidentalis(an invasive species)and Haplothrips chinensis(a native species).The population size of F.occidentalis on Trifolium repens(r=-0.889,P<0.001),Aster oliganthus(r=-0.822,P=0.001),and Buddleja davidii(r=-0.487,P=0.065)decreased,whereas population size of F.occidentalis on Anaphalis margaritacea(r=0.533,P=0.032)significantly increased with increasing altitude.The population of H.chinensis declined with increasing altitude on T.repens(r=-0.770,P<0.001),increased on B.davidii(r=0.123,P=0.661)and A.margaritacea(r=0.419,P=0.005),and was not observed on A.oliganthus.The population of F.occidentalis at 3200 m showed no significant difference compared to those at 1800,2150,and 2500 m,while significant differences were observed among all other altitude pairs(P<0.05).For H.chinensis,the highest abundance occurred at 1800 m;the population at an altitude of 2500 m was also significantly higher than that at 2150 m(P<0.05),with no significant differences among other altitudes.F.occidentalis and H.chinensis were the dominant thrips species in Dashanbao Nature Reserve,with F.occidentalis being more abundant than H.chinensis.Across the altitudinal gradient from 1800 m to 3200 m,the invasive species F.occidentalis exhibited a continuous decline in population with increasing elevation,whereas the native species H.chinensis showed a tendency to aggregate toward higher altitudes,with relatively higher abundance in these regions.
作者
陈敏
胡英
张薄
张金龙
陈国华
范雯
张晓明
吴道慧
CHEN Min;HU Ying;ZHANG Bo;ZHANG Jinlong;CHEN Guohua;FAN Wen;ZHANG Xiaoming;WU Daohui(College of Plant Protection,Yunnan Agricultural University,National Key Laboratory for Conservation and Utilization of Biological Resources in Yunnan,Kunming 650201,China)
出处
《生态学杂志》
北大核心
2026年第1期142-149,共8页
Chinese Journal of Ecology
基金
云南省果蔬花入侵害虫防控国际联合实验室(202303AP140018)
云南省中青年学术技术带头人后备人才项目(202105AC160071)
“云南省高层次人才培养支持计划”青年拔尖人才专项(YNWRQNBJ2020291)资助。
关键词
大山包自然保护区
西花蓟马
优势种
海拔梯度
寄主植物
Dashanbao Nature Reserve
Frankliniella occidentalis
dominant species
altitude gradient
host plant
