Table 5 Number of individuals and long-term trends by taxa in the Sihwa Lake area
From: Influence of land use change on the waterbird community of Sihwa Lake, Republic of Korea
Mean counts | SD | Annual change (%) | SE | Long-term trends (TRIM classification) | |
|---|---|---|---|---|---|
Dabbling ducks | 6658.4 | 4558.5 | −1.2 | 0.01 | Moderate decline |
Diving ducks | 5945.7 | 3985.2 | 2.7 | 0.01 | Moderate increase |
Herons | 1058.5 | 685.2 | −0.5 | 0.01 | Moderate decline |
Grebes | 185.2 | 87.6 | 0.0 | 0.00 | No change |
Shorebirds | 2525.6 | 1568.3 | −7.8 | 0.03 | Steep decline |
Gulls | 525.3 | 256.2 | −0.1 | 0.00 | No change |
Others | 56.2 | 25.6 | 0.1 | 0.01 | No change |