昆虫学报 ›› 2017, Vol. 60 ›› Issue (3): 335-346.doi: 10.16380/j.kcxb.2017.03.011

• 研究论文 • 上一篇    下一篇

基于MaxEnt模型的两种捕食性盲蝽潜在分布区及其适生性分析

祝梓杰, 王桂瑶, 乔飞, 白月亮, 程家安, Kong Luen HEONG, 祝增荣*   

  1. (浙江大学昆虫科学研究所, 农业部作物病虫分子生物学重点开放实验室, 杭州 310058)
  • 出版日期:2017-03-20 发布日期:2017-03-20

Potential geographical distribution and habitat suitability analysis for two mirid predators Tytthus chinensis and Cyrtorhinus lividipennis (Hemiptera: Miridae) in rice fields based on MaxEnt model

ZHU Zi-Jie, WANG Gui-Yao, QIAO Fei, BAI Yue-Liang, CHENG Jia-An, Kong Luen HEONG, ZHU Zeng-Rong*   

  1.  (Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China) 
  • Online:2017-03-20 Published:2017-03-20

摘要: 【目的】为了预测和分析稻飞虱的两种重要捕食性天敌中华淡翅盲蝽Tytthus chinensis和黑肩绿盲蝽Cyrtorhinus lividipennis的潜在分布区,研究气候环境因素对其潜在分布的影响。【方法】MaxEnt是以最大熵理论为基础的预测物种地理分布的模型,本文运用MaxEnt模型,根据这两种盲蝽的已知分布区及其气候环境影响因素,推测这两种盲蝽的适生性分布及气候环境因素的影响。【结果】中华淡翅盲蝽主要适宜分布区域为中国秦岭淮河以南地区、东北亚的朝鲜半岛和日本、东南亚以及菲律宾和印度尼西亚群岛部分地区,即东洋区和大洋区北部群岛;黑肩绿盲蝽适宜分布区比中华淡翅盲蝽更广,可达山东、河北以南,陕西、云南、贵州以东的中国大部地区,海外除中华淡翅盲蝽分布区外,也可分布于南美亚马逊雨林地区。研究还发现,最热季度降雨量、平均日温差对中华淡翅盲蝽、黑肩绿盲蝽适宜性分布有重要影响;夏季降雨量大于500 mm、平均日温差低于10℃,有利于这两种盲蝽的分布。【结论】两种捕食性盲蝽适宜生境主要受最热季度降雨量、平均日温差影响。本研究为发挥这两种捕食性盲蝽在害虫生物防治中的作用提供了重要依据。

关键词: 中华淡翅盲蝽, 黑肩绿盲蝽, 分布, 适生性分析, 气候环境因素, MaxEnt模型

Abstract:  【Aim】 The objective of this research is to analyze and predict the potential geographical distributions of two important mirid predators Tytthus chinensis and Cyrtorhinus lividipennis, of rice planthoppers, and to study the effects of climatic factors on their potential geographical distribution. 【Methods】 Maximum entropy niche-based modeling (MaxEnt) was used to predict species geographical distributions based on maximum entropy. The distribution records of the two mirid species and a set of environmental predictor variables were used to model the suitable geographical distributions of the two species. 【Results】 The results showed that the principal geographical distribution areas of T. chinensis were Southeast China, East Asia, Southeast Asia and parts of the Indonesia or within the geographical biomes of the Oriental and Australia. The suitable distribution areas of C. lividipennis were relatively broader in comparison with those of T. chinensis. In addition to the distribution area of T. chinensis, C. lividipennis could possibly survive in Shandong, Hebei, Shaanxi and Yunnan provinces in China, and the Amazon region as well. The suitability of T. chinensis and C. lividipennis was found to be affected significantly by the precipitation in the warmest season and the mean diurnal range. Especially, the precipitation in the warmest season exceeding 500 mm and the mean diurnal range monthly below 10℃ are the more favorable conditions for the distribution of T. chinensis and C. lividipennis. 【Conclusion】 Our results revealed that the suitable distribution of these two predators is primarily affected by the precipitation in the warmest season and the mean diurnal temperature range monthly. This study provides some important evidence for successful biological control of the two mirids in these potential distribution regions.

Key words: Tytthus chinensis, Cyrtorhinus lividipennis, distribution, habitat suitability analysis, environmental climate factors, MaxEnt model