Figure 4 | Scientific Reports

Figure 4

From: Climate-Altered Wetlands Challenge Waterbird Use and Migratory Connectivity in Arid Landscapes

Figure 4

Changes in Great Basin breeding waterbird community composition and their association with climate over time (1968–2015; stress = 0.03) as indicated by a non-metric multi-dimensional scaling ordination plot. Circles represent the community composition each year whereas the distance between circles indicates their degree of similarity (higher proximity of circles indicates a higher similarity, whereas years that are more dissimilar are placed further apart). We include 1968 and 2015 as reference years to show direction of the community trajectory over time. Arrows located outside of each axis show the direction of statistically significant associations (P < 0.01) between climatic descriptors and each ordination axis score (1980–2015). Bird silhouettes illustrate species that showed statistically significant positive (right) and negative (left) trends in abundance over time as well as individual positive (right) and negative (left) associations to warm and dry climates (1968–2015; Supplementary Table S2). The humped shape of the curve illustrates changes in the community composition associated to streamflow (see secondary right axis). All species considered in this analysis migrate out of the Great Basin region, except for the American Coot, Wilson’s Snipe and Killdeer.

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