Table 1 Niche breadth (Levins’ index) of waterbird species calculated from the three niche dimensions used
From: Foraging guild structure and niche characteristics of waterbirds in an epicontinental lake in Mexico
Guild | Scientific name | Common name | Code | Feeding technique | Habitat use | Both dimensions |
|---|---|---|---|---|---|---|
(n = 9) | (n = 11) | (n = 55) | ||||
Oxyura jamaicensis | Ruddy duck | OXYJAM | 1.51 | 1.82 | 2.96 | |
Podiceps nigricollis | Eared grebe | PODNIG | 1.00 | 2.20 | 2.20 | |
G1 | Mean | 1.26 | 2.01 | 2.58 | ||
Plegadis chihi | White-faced ibis | PLECHI | 1.00 | 2.61 | 2.61 | |
Egretta thula | Snowy egret | EGRTHU | 1.00 | 1.54 | 1.54 | |
Bubulcus ibis | Cattle egret | BUBIBI | 1.00 | 1.36 | 1.36 | |
Himantopus Mexicanus | Black-necked stilt | HIMMEX | 1.00 | 1.92 | 1.92 | |
Tringa flavipes | Lesser yellowlegs | TRIFLA | 1.00 | 1.68 | 1.68 | |
Limnodromus scolopaceus | Long-billed dowitcher | LIMSCO | 1.00 | 1.51 | 1.51 | |
Charadrius vociferus | Killdeer | CHAVOC | 1.00 | 4.69 | 4.69 | |
Actitis macularius | Spotted sandpiper | ACTMAC | 1.00 | 3.53 | 3.53 | |
Calidris minutilla | Least sandpiper | CALMIN | 1.00 | 3.96 | 3.96 | |
G2 | Mean | 1.00 | 2.53 | 2.53 | ||
Leucophaeus pipixcan | Franklin's gull | LEUPIP | 1.00 | 1.12 | 1.12 | |
Anas cyanoptera | Cinnamon teal | ANACYA | 2.78 | 3.84 | 5.15 | |
Fulica americana | American coot | FULAME | 3.53 | 5.35 | 12.79 | |
Gallinula galeata | Common moorhen | GALGAL | 1.00 | 3.22 | 3.22 | |
Phalaropus tricolor | Wilson's phalarope | PHATRI | 1.14 | 2.71 | 3.06 | |
G3 | Mean | 1.89 | 3.25 | 5.07 | ||
Anas platyrhynchos | Mallard | ANAPLA | 1.34 | 2.32 | 2.86 | |
Anas acuta | Northern pintail | ANAACU | 1.95 | 2.44 | 4.13 | |
Anas discors | Blue-winged teal | ANADIS | 2.17 | 3.01 | 5.32 | |
Anas clypeata | Northern shoveler | ANACLY | 4.10 | 3.80 | 14.57 | |
Anas crecca | Green-winged teal | ANACRE | 4.90 | 3.25 | 12.01 | |
G4 | Mean | 2.89 | 2.96 | 7.78 | ||
Total mean | 1.76 | 2.69 | 4.49 |