Figure 74. Relative importance of the explanatory variables, calculated as a sum of the AIC weights over all of the models (see Table 1b for acronyms). Lake Yamma Yamma This large freshwater lake depends on Cooper Creek for its flows. Despite its size it did not have particularly high numbers of waterbirds, although species richness was reasonably high (Fig. 72). There was no evidence for any significant trends in abundance or species richness (Table 34). Figure 75. Abundance and species richness of waterbirds surveyed on Lake Yamma Yamma, during annual surveys of the Lake Eyre Basin, 1983-2012. The duck functional group was the most abundant, followed by the piscivores and herbivores (Table 34, Fig. 73). There was no evidence for any trends in abundances of functional groups (Table 34). Figure 76. Abundances of functional groups (du-ducks, he-herbivores, la-large waders, sh-shorebirds; see Appendix 1) on Lake Yamma Yamma, 1983-2012. There were only two years when breeding was recorded (Fig. 74). Figure 77. Breeding abundance (nests and broods) and richness of breeding species surveyed during annual surveys of Lake Yamma Yamma, 1983-2012. Grey teal, Pacific black duck and pink-eared duck were the dominant species (Fig. 75). Figure 78. Relative composition of waterbird species in Lake Yamma Yamma, showing the 12 most common species (total abundances) estimated during annual surveys of the Lake Eyre Basin, 1983-2012.
Figure 74. Relative importance of the explanatory variables, calculated as a sum of the AIC weights over all of the models (see Table 1b for acronyms). Lake Yamma Yamma This large freshwater lake depends on Cooper Creek for its flows. Despite its size it did not have particularly high numbers of waterbirds, although species richness was reasonably high (Fig. 72). There was no evidence for any significant trends in abundance or species richness (Table 34). Figure 75. Abundance and species richness of waterbirds surveyed on Lake Yamma Yamma, during annual surveys of the Lake Eyre Basin, 1983-2012. The duck functional group was the most abundant, followed by the piscivores and herbivores (Table 34, Fig. 73). There was no evidence for any trends in abundances of functional groups (Table 34). Figure 76. Abundances of functional groups (du-ducks, he-herbivores, la-large waders, sh-shorebirds; see Appendix 1) on Lake Yamma Yamma, 1983-2012. There were only two years when breeding was recorded (Fig. 74). Figure 77. Breeding abundance (nests and broods) and richness of breeding species surveyed during annual surveys of Lake Yamma Yamma, 1983-2012. Grey teal, Pacific black duck and pink-eared duck were the dominant species (Fig. 75). Figure 78. Relative composition of waterbird species in Lake Yamma Yamma, showing the 12 most common species (total abundances) estimated during annual surveys of the Lake Eyre Basin, 1983-2012.
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