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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
  1. The guild codes correspond to those shown in Figure 5.