摘要
绿太阳鱼(Lepomis cyanellus)是一种具有较高入侵风险的外来物种。本文结合19个生物气候因子和2 450个绿太阳鱼分布数据,利用最大熵模型(MaxEnt)预测了绿太阳鱼在全球的适宜分布区。结果表明绿太阳鱼在全球除南极洲外的各个大洲淡水水域都有广泛的适生区,且我国的东北部、中东部、西南部、南部均有该物种的中、高适生区分布;气温是限制绿太阳鱼分布的重要因素,其适宜的环境因子是年平均适宜温度为11.98℃到18.91℃之间,适宜气温宽幅从-9.27℃到35.06℃,适宜的环境范围较宽。本文认为在如今全球气候变暖的形势下,适应温度宽幅较大的绿太阳鱼在缺少人类干扰地区的扩散趋势将增加。
The green sunfish(Lepomis cyanellus)is an alien species with high invasion potentiality.In this paper,19 bioclimatic factors and the distribution data of 2450 green sunfish were combined,and the maximum entropy model(MaxEnt)was used to predict the suitable distribution area of green sunfish in the world.The prediction results show that the green sunfish has a wide range of suitable habitats in the freshwater of all continents except for Antarctica.There are middle and high distribution of the species in northeast,Middle East,southwest and south of our country.Temperature is an important factor limiting the distribution of green sunfish.The appropriate environmental factor is the average suitable annual temperature between 11.98℃and 18.91℃,and the suitable temperature range ranges from-9.27℃to 35.06℃,and the suitable environmental range is wide.In this paper,it is suggested that under the current global warming situation,the diffusion trend of green sunfish with large temperature range will increase in the areas without human disturbance.
作者
万安
朱正杰
万云
杨红飞
WAN An;ZHU Zhengjie;WAN Yun;YANG Hongfei(School of Resources and Environment,Anqing Normal Univisity,Anqing 246133,China;Nanjing University Ecological Research Institute of Changshu,Nanjing University(Changshu)Research Institute Co.,Ltd.,Suzhou 215500,China;School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China;School of Ecology and Environment,Anhui Normal Univisity,Wuhu 241002,China)
出处
《宿州学院学报》
2023年第3期34-39,共6页
Journal of Suzhou University
基金
国家自然科学基金(31800387)
安徽省自然科学基金面上项目(1908085MC60)
安庆师范大学人才引进基金(044-160002009)。
关键词
物种分布模型
入侵种
适生区
Species distribution model
Invasive species
Suitable distribution area
