Relationship between Winter Resident Bird Community and Multi-scale Landscape Patterns in Cold Urban Riparian Zone
This study aimed to address the conflict between urban landscape pattern changes and urban biodiversity during urbanization and provide reference suggestions for the construction and enhancement of winter bird habitats in cold cities.Field surveys were conducted to obtain data on winter resident bird communities along the Hun River riparian zone in Shenyang.Geographic information analysis techniques were employed to acquire landscape pattern data for three scaled buffer zones of 50 m,100 m,and 200 m along the riparian zone.Spearman's correlation analysis and redundancy analysis were utilized to examine the relationship between resident bird diversity and landscape patterns.Results showed that among the three buffer zones,the landscape pattern indices within the 100 m buffer zone had the most significant impact on resident bird diversity.Within the 50 m and 100 m buffer zones,shrub and grassland patch densities were significantly positively correlated with bird richness and abundance.In the 200m buffer zone,the proportion of water landscape area was significantly negatively correlated with Shannon diversity.The impact of landscape patterns on resident bird diversity exhibited a scale effect,with the 100 m buffer zone showing the most significant impact.Increased landscape heterogeneity effectively enhanced resident bird diversity,and seasonal changes also indirectly affected bird diversity levels.It is recommended to identify key scale environmental factors,enhance landscape heterogeneity,and consider the impact of seasons on bird resource acquisition when designing and enhancing winter riverbank habitats for resident birds,in order to formulate effective measures.
万方数据
维普
