I-WeBS Lough Eorna Trends Report
I-WeBS Trends Report 1994/95 – 2019/20
Published 2022-04-01
Introduction
This report presents site trends based on the data gathered by the Irish Wetland Bird Survey (I-WeBS). Only species with sufficient data at Lough Eorna (site code 0J006) are presented.
This report is part of the I-WeBS National and Site Trends Report 1994/95 – 2019/20.
For guidance on how to interpret these trends, please see the I-WeBS Trends Report Guidance.
For details on the methods used to generate these trends, please see the I-WeBS Trends Report Methodology.
Site Summary
| Species | Lough Eorna - 5 Year | Lough Eorna - 12 Year | Lough Eorna - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Pochard | 66.7 | -30.6 | -74.2 | Large Decline |
| Mallard | 11.0 | -38.9 | -51.6 | Large Decline |
| Shoveler | 76.0 | -52.2 | -41.3 | Moderate Decline |
| Grey Heron | 68.1 | 346.2 | -27.5 | Moderate Decline |
| Wigeon | 126.5 | -67.4 | -26.0 | Moderate Decline |
| Tufted Duck | -22.8 | 32.2 | -21.2 | Intermediate Decline |
| Coot | 95.3 | -22.2 | -18.8 | Intermediate Decline |
| Teal | 110.0 | -26.1 | 2.9 | Stable or Increasing |
| Mute Swan | -2.9 | -19.5 | 5.3 | Stable or Increasing |
| Lapwing | -64.4 | 44.3 | 6.3 | Stable or Increasing |
| Little Grebe | 148.8 | 143.2 | 37.2 | Stable or Increasing |
| Great Crested Grebe | -9.6 | 111.2 | 66.4 | Stable or Increasing |
| Gadwall | -22.1 | -76.5 | 125.0 | Stable or Increasing |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | -2.9 | -19.5 | 5.3 |
| National | 4.6 | 9.6 | 13.8 |
Shoveler
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 76.0 | -52.2 | -41.3 |
| National | 23.0 | -21.3 | -10.8 |
Gadwall
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | -22.1 | -76.5 | 125.0 |
| National | -26.5 | 4.3 | 24.4 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 126.5 | -67.4 | -26.0 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 11.0 | -38.9 | -51.6 |
| National | -11.3 | -19.7 | -19.1 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 110.0 | -26.1 | 2.9 |
| National | 1.8 | 5.7 | 19.4 |
Pochard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 66.7 | -30.6 | -74.2 |
| National | -19.8 | -60.4 | -79.1 |
Tufted Duck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | -22.8 | 32.2 | -21.2 |
| National | -20.7 | -28.9 | -17.9 |
Coot
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 95.3 | -22.2 | -18.8 |
| National | -10.1 | 1.1 | -23.2 |
Little Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 148.8 | 143.2 | 37.2 |
| National | 6.1 | 16.7 | 38.2 |
Great Crested Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | -9.6 | 111.2 | 66.4 |
| National | -39.5 | -6.1 | -10.8 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | -64.4 | 44.3 | 6.3 |
| National | -6.5 | -45.1 | -63.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Lough Eorna | 68.1 | 346.2 | -27.5 |
| National | 1.0 | -4.9 | 6.6 |
Citations
Please cite this work as follows:
Kennedy, J., Burke, B., Fitzgerald, N., Kelly, S.B.A., Walsh, A.J. & Lewis, L.J. 2022. Irish Wetland Bird Survey: I-WeBS National and Site Trends Report 1994/95 – 2019/20. BirdWatch Ireland Waterbird Report to the National Parks and Wildlife Service. BirdWatch Ireland, Wicklow. (https://birdwatchireland.ie/app/uploads/2022/04/iwebs_trends_report.html)