Research Article

Constructed Borrow-Pit Wetlands as Habitat for Aquatic Birds in the Peace Parkland, Canada

Figure 4

Nonmetric Multidimensional Scaling ordination plots of bird assemblages in (a) May presence/absence of 12 species, (b) June presence/absence 10 species, (c) July presence/absence of 7 species, and (d) August presence/absence of 8 species of aquatic birds across 200 ponds surveyed in 2007 in the Peace Parkland, Alberta. Landscape types are coded by agricultural ponds (0–33.3% forest within a 500 m pond buffer, 𝑛 = 9 1 ), mixed habitat ponds (33.4–66.6% forest, 𝑛 = 4 4 ), forest ponds (66.7–100% forest, 𝑛 = 6 5 ). β€œALL” is a dummy variable, included in order to keep all ponds in analyses (see text). See Table 2 for species codes.
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