Using MaxEnt to explore the impact of habitat quality on the distribution of lark birds
The fixed-radius sampling method was used to investigate the relationship between the distribution and habitat quality of birds in grassland habitats in Chifeng,Tongliao and Xilingol League in east-central Inner Mongolia,and a total of five genera and five species of lark birds were recorded in the three-year survey.MaxEnt software was used to analyze the distribution data and environmental variables representing habitat quality.Macroscopically,larks,Mongolian larks and short-toed larks were highly similar in their suitable distribution areas in the study area,and all tended to be distributed in habitats with low elevation,gentle terrain,and rich precipitation,and in both typical grasslands and meadow grasslands.The horned larkspur was found only in prairie Ulgai,i.e.,only in typical grassland.Crested larkspur,on the other hand,was not distributed at all in the prairie Ulgai,but only in the meadow grassland.When analyzing the individual environmental factor,it was found that all lark birds tended to live near water,and this was especially true for the horned larkspur,which had a more arid suitable habitat,suggesting that water is a key factor for the survival of lark birds.The fact that all lark birds except the horned lark had a high distribution along the roadside may be related to the edge effect of species distribution,and passing vehicles may bring food to Lepidoptera.Therefore,it is recommended to strengthen the priority protection of roadside larks and the protection of water sources of highly suitable habitats for lark birds.
lark birdsenvironmental factorsMaxEnt modellinghabitat areas
万方数据
维普
