Habitat Suitability Evaluation of White-naped Crane During Breeding Period at Huihe National Nature Reserve
In order to evaluate the habitat suitability of the white-naped crane(Grus vipio)during the breeding period in Huihe National Nature Reserve,bird distribution data collected from April to June 2021 and from May to June 2022 was used for the analysis via MaxEnt model.Results showed that:(1)the AUC value of the training dataset of the white-naped crane in 2021 was 0.971 and the AUC value of the test data was 0.970,and the AUC value of the training data of the white-naped crane in 2022 was 0.974 and the AUC value of the test data was 0.972,indicating that the prediction results of the MaxEnt model reached the excellent level in both years(greater than 0.900).(2)The main influencing factors of habitat utilization varied by years,and they were normalized difference vegetation index,distance from road and soil brightness in 2021,but were soil moisture,altitude and soil brightness in 2022.(3)The area of suitable habitats also varied by years,with a total of 1,679 hm2 in 2021(the optimal and suitable habitat areas were 75 hm2 and 1,604 hm2,accounting for 0.48%of the total area of the reserve),and 8,473 hm2 in 2022(the optimal and suitable habitat areas were 56 hm2 and 8,417 hm2,accounting for 2.44%of the total area of the reserve).Further analysis showed that the breeding habitat area of the white-naped crane at the Huihe Reserve was small,discontinuous with low-connectivity,and human activities interfered with the habitat utilization of the white-naped crane during the breeding period in the reserve.Therefore it is recommended that the reserve shall limit human activities at the breeding area to reduce the impact on white-naped crane.
MaxEnt modelHabitat suitabilityReproductive periodWhite-naped crane(Grus vipio)Huihe National Nature Re-serve
NETL
NSTL
万方数据
维普
