Diversity of birds in breeding season of Dujiangyan

doi:10.17520/biods.2021329

Abstract

Abstract:

Aims Dujiangyan is located in a regional hotspot of biodiversity, which has significantly high avian diversity. However, a comprehensive list of bird species is still lacking there. Therefore, we conducted fixed-line transects bird surveys in Dujiangyan from May 2016 to August 2019 to map the avian diversity of the region.

Methods Comprehensive surveys have been done to evaluate diversity of breeding birds by using the fixed line transects method. A total of 10 survey lines were set up inside and outside protected areas in the Dujiangyan, covering a wide range of diverse habitats at different altitudes. Based on historical document catalogs, infrared camera data, and data from the China Bird Report (http://www.birdreport.cn/), an updated list of the Dujiangyan was created in this study.

Results Combined with historical documents, a total of 311 species of birds were recorded in Dujiangyan. The birds belong to 17 orders, 61 families which including 184 residents (59.2%), 68 summer visitors (21.9%), 35 winter visitors (11.3%), and 24 passage migrants (7.7%). Breeding birds are 252 species (81.0%) and passerine birds are 212 (68.2%) species. Fifteen species (4.8%) are endemic to China and 9 Class-I (2.9%) and 50 Class-II (16.1%) nationally protected birds were recorded in this region, respectively. Most of the birds were found in the shrubs, evergreen and deciduous broad-leaved mixed forest habitats, while the evergreen coniferous forest and bamboo forest had fewer. The elevational richness of birds in Dujiangyan displayed a bell-shaped pattern with the highest species richness occurred at mid-elevations (1,580-1,890 m) and the lowest species richness at high elevations (1,890-2,200 m).

Conclusion Dujiangyan is a global biodiversity hotspot, as well as a famous national tourism destination, in order to maintain the high diversity of birds in this area, we should reduce the area of monoculture commercial forests and the control human disturbance from tourism, as well as keep monitoring, studying, and conserving the diversity of birds into the future.

Key words: Dujiangyan, avain, biodiversity, fauna

Shangmingyu Zhang, Xingcheng He, Yan Wang, Beiyao Wang, Qianyun He, Yitian Zhang, Bin Wang, Kai Zhang, Li Hu, Tao Shang, Min Zhu, Yongjie Wu. Diversity of birds in breeding season of Dujiangyan[J]. Biodiv Sci, 2022, 30(3): 21329.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2021329

https://www.biodiversity-science.net/EN/Y2022/V30/I3/21329

Figures/Tables 8

References 29

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序号 Serial number	生境类型 Habitat types	物种数 No. of species	物种数占比 Percentage (%)	个体数 Individuals
1	常绿-落叶阔叶混交林 Evergreen and deciduous mixed broad-leaved forest	65	46.10	442
2	灌丛 Shrub	59	41.84	533
3	成熟人工林 Mature plantation	56	39.72	374
4	农田 Farmland	45	31.91	472
5	常绿阔叶林 Evergreen broad-leaved forest	44	31.21	316
6	针阔叶混交林 Coniferous and broad-leaved mixed forest	44	31.21	263
7	水域 Waters	43	30.50	302
8	落叶阔叶林 Deciduous broad-leaved forest	42	29.79	133
9	居民点 Residential points	33	23.40	289
10	竹林 Bamboo forest	19	13.48	50
11	常绿针叶林 Evergreen coniferous forest	13	9.22	28

序号 Serial number	生境类型 Habitat types	物种数 No. of species	物种数占比 Percentage (%)	个体数 Individuals
1	常绿-落叶阔叶混交林 Evergreen and deciduous mixed broad-leaved forest	65	46.10	442
2	灌丛 Shrub	59	41.84	533
3	成熟人工林 Mature plantation	56	39.72	374
4	农田 Farmland	45	31.91	472
5	常绿阔叶林 Evergreen broad-leaved forest	44	31.21	316
6	针阔叶混交林 Coniferous and broad-leaved mixed forest	44	31.21	263
7	水域 Waters	43	30.50	302
8	落叶阔叶林 Deciduous broad-leaved forest	42	29.79	133
9	居民点 Residential points	33	23.40	289
10	竹林 Bamboo forest	19	13.48	50
11	常绿针叶林 Evergreen coniferous forest	13	9.22	28

生境类型 Habitat types	1	2	3	4	5	6	7	8	9	10	11
1		33	42	25	33	27	21	25	22	15	11
2	0.36		33	25	25	20	21	19	19	14	8
3	0.53	0.40		24	30	21	20	26	21	13	9
4	0.29	0.32	0.31		24	14	28	18	26	10	6
5	0.43	0.32	0.43	0.37		20	19	23	23	11	10
6	0.33	0.24	0.27	0.19	0.29		10	21	11	12	9
7	0.24	0.26	0.25	0.47	0.28	0.13		11	24	9	5
8	0.30	0.23	0.36	0.26	0.37	0.32	0.15		15	11	10
9	0.29	0.26	0.31	0.50	0.43	0.17	0.46	0.25		10	6
10	0.22	0.22	0.21	0.19	0.21	0.24	0.17	0.22	0.24		5
11	0.16	0.13	0.15	0.12	0.21	0.19	0.10	0.22	0.15	0.19

生境类型 Habitat types	1	2	3	4	5	6	7	8	9	10	11
1		33	42	25	33	27	21	25	22	15	11
2	0.36		33	25	25	20	21	19	19	14	8
3	0.53	0.40		24	30	21	20	26	21	13	9
4	0.29	0.32	0.31		24	14	28	18	26	10	6
5	0.43	0.32	0.43	0.37		20	19	23	23	11	10
6	0.33	0.24	0.27	0.19	0.29		10	21	11	12	9
7	0.24	0.26	0.25	0.47	0.28	0.13		11	24	9	5
8	0.30	0.23	0.36	0.26	0.37	0.32	0.15		15	11	10
9	0.29	0.26	0.31	0.50	0.43	0.17	0.46	0.25		10	6
10	0.22	0.22	0.21	0.19	0.21	0.24	0.17	0.22	0.24		5
11	0.16	0.13	0.15	0.12	0.21	0.19	0.10	0.22	0.15	0.19

季节 Season	物种数 No. of species	个体数 Individuals	Shannon-Wiener多样性指数 Shannon-Wiener diversity index	Pielou均匀度指数 Pielou evenness index
繁殖前期 Early breeding period	85	1,149	3.62	0.51
繁殖期 Breeding period	108	1,793	3.93	0.52
繁殖后期 Late breeding period	57	494	3.44	0.55