Table 2 Perception of the fishers in the region of Coroa do Avião Island with regard to the local population of migratory shorebirds
From: Do artisanal fishers perceive declining migratory shorebird populations?
Question | Answer | Gender | Age (%) | Colony | Test | ||||
|---|---|---|---|---|---|---|---|---|---|
M% | F% | 40 % | 40 + % | IT% | IP% | IG% | |||
Do you know what shorebirds are? | no | 40.9 | 54.0 | 31.1 | 59.5 | 38.5 | 43.7 | 50.8 | Gender: (χ 2 = 3.919; n = 232; d.f. = 1; p = 0.0477) Age: (χ 2 = 18.651; n = 232; d.f. = 1; p = 0.0001) Colony: (χ 2 = 2.157; n = 232; d.f. = 2; p = 0.34) |
yes | 59.1 | 46.0 | 68.9 | 40.5 | 61.5 | 56.3 | 49.2 | ||
Do you know the areas where shorebirds can be found? | no | 21.6 | 46.7 | 37.3 | 29.1 | 54.1 | 20.0 | 32.2 | Gender: (χ 2 = 15.326; n = 217; d.f. = 1; p = 0.0001) Age: (χ 2 = 1.594; n = 217; d.f. = 1; p = 0.2067) Colony: (χ 2 = 12.514; n = 217; d.f. = 2; p = 0.0019) |
yes | 78.4 | 53.3 | 62.7 | 70.9 | 45.9 | 80.0 | 67.8 | ||
Are these birds faithful to these sites? | SS | 50.5 | 61.5 | 45.5 | 58.7 | 54.5 | 45.5 | 59.8 | Gender: (χ 2 = 1.931; n = 159; d.f. = 2; p = 0,3807) Age: (χ 2 = 2.971; n = 159; d.f. = 2; p = 0.2264) Colony: (G = 9.3748; n = 159; d.f. = 4; p = 0.0524) |
DS | 12.1 | 11.5 | 16.4 | 9.6 | 27.3 | 9.1 | 9.8 | ||
NS | 37.4 | 26.9 | 38.2 | 31.7 | 18.2 | 45.5 | 30.5 | ||
What causes this behavior? | LC | 21.0 | 8.9 | 4.8 | 22.3 | 12.5 | 25.9 | 11.6 | Gender: (G = 4.1926; n = 145; d.f. = 2; p = 0.1229) Age: (G = 14.583; n = 145; d.f. = 2; p = 0.0007) Colony: (G = 7.1067; n = 147; d.f. = 4; p = 0.1304) |
HT | 76.0 | 84.4 | 83.3 | 76.7 | 83.3 | 72.2 | 79.7 | ||
ED | 3.0 | 6.7 | 11.9 | 1.0 | 4.2 | 1.9 | 8.7 | ||
Have their flocks decreased in size? | No | 46.8 | 43.2 | 40.0 | 42.9 | 43.3 | 39.1 | 41.2 | Gender: (χ = 1.724; n = 194; d.f. = 1; p = 0.1892) Age: (χ 2 = 0.199; n = 194; d.f. = 1; p = 0.6558) Colony: (χ 2 = 0.322; n = 194; d.f. = 2; p = 0.8512) |
Yes | 53.2 | 56.8 | 60.0 | 57.1 | 56.7 | 60.9 | 58.8 | ||
Do you perceive any changes in the island? | No | 21.4 | 37.7 | 29 | 27.5 | 21.2 | 22.6 | 33 | Gender: (χ 2 = 5.959;n = 189;d.f. = 1;p = 0,0146) Age: (χ 2 = 0.048; n = 189; d.f. = 1; p = 0.8267) Colony: (χ 2 = 3.357; n = 189; d.f. = 2; p = 0.1867) |
Yes | 78.6 | 62.3 | 71 | 72.5 | 78.8 | 77.4 | 66 | ||
What changes are these? | HB | 58.7 | 57.4 | 53.3 | 61.0 | 50.0 | 56.1 | 61.9 | Gender: (χ 2 = 0.218; n = 252; d.f. = 2; p = 0.8969) Age: (χ 2 = 0.839; n = 252; d.f. = 2; p = 0.6574) Colony: (G = 5.7475; n = 122; d.f. = 4; p = 0.2188) |
CE | 25.3 | 23.4 | 28.9 | 22.1 | 44.4 | 24.4 | 19.0 | ||
DE | 16.0 | 19.1 | 17.8 | 16.9 | 5.6 | 19.5 | 19.0 | ||
What changes have provoked a reduction in shorebird populations? | 1 | 19.2 | 11.6 | 13.0 | 18.5 | 12.5 | 20.9 | 15.0 | Gender: (χ 2 = 4.807; n = 199; d.f. = 5; p = 0.4399) Age: (χ 2 = 5.474; n = 199; d.f. = 5; p = 0.3608) Colony: (H = 10.7232; n = 199; d.f. = 2; p = 0.0047) |
2 | 13.1 | 10.1 | 15.9 | 10.0 | 3.1 | 11.9 | 15.0 | ||
3 | 18.5 | 15.9 | 13.0 | 20.0 | 12.5 | 20.9 | 17.0 | ||
4 | 23.8 | 36.2 | 34.8 | 24.6 | 43.8 | 22.4 | 27.0 | ||
5 | 10.8 | 13.0 | 11.6 | 11.5 | 3.1 | 10.4 | 15.0 | ||
6 | 14.6 | 13.0 | 11.6 | 15.4 | 25.0 | 13.4 | 11.0 | ||
Which practices interfere with the presence of the birds? | 7 | 13.8 | 13.2 | 16.8 | 11.8 | 14.6 | 12.8 | 13.8 | Gender: (χ 2 = 3.958; n = 279; d.f. = 4; p = 0.4117) Age: (χ 2 = 2.571; n = 279; d.f. = 4; p = 0.632) Colony: (H = 9.5461; n = 279; d.f. = 2; p = 0.0085) |
8 | 24.5 | 25.3 | 25.7 | 24.2 | 16.7 | 29.1 | 24.8 | ||
9 | 23.4 | 17.6 | 22.8 | 20.8 | 18.8 | 24.4 | 20.7 | ||
10 | 14.4 | 23.1 | 14.9 | 18.5 | 27.1 | 10.5 | 17.9 | ||
11 | 23.9 | 20.9 | 19.8 | 24.7 | 22.9 | 23.3 | 22.8 | ||