highly significantp = 0.001
The results demonstrated a highly significant baseline difference in waterbird composition between the impact and control lakes (Treatment effect: F 1,14 = 8.071, p = 0.001), reflecting inherent habitat variations.
The results demonstrated a highly significant baseline difference in waterbird composition between the impact and control lakes (Treatment effect: F 1,14 = 8.071, p = 0.001), reflecting inherent habitat variations.
Crucially, within the BACI framework, the interaction between time and treatment displayed a marginally significant trend (F 1,14 = 1.829, p = 0.100).
Given the inherent high temporal variance and spatial heterogeneity typical of macroecological field data, this marginal significance strongly indicates a divergent trajectory, suggesting that while the overall abundance hierarchy of dominant species requires a longer temporal window to completely reorganize, the removal of PVM structures has successfully initiated a targeted shift in community composition at Jiaogang Lake relative to the control site.
Subsequent analysis of individual waterbird functional traits revealed a significant trend towards larger body sizes in waterbirds following the removal of PVMs.
The results of this study demonstrate an increasing trend in CWM values for multiple functional traits characterizing waterbird body size after PVM removal.