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. 2001 Jan 2;98(1):166–170. doi: 10.1073/pnas.98.1.166

Figure 2.

Figure 2

Contrast in seasonal dynamics of allochthonous prey contribution to forest birds and stream fishes. (A) Proportion by frequency of aquatic prey foraging to the total observations in each forest bird species. The contribution of aquatic prey differed significantly both among months and species in both year-round and summer-resident birds (P < 0.01 for all by Friedman test). GT, great tit; MT, marsh tit; NH, nuthatch; PWP, pigmy woodpecker; BRF, brown flycatcher; NF, narcissus flycatcher; PWW, pale-legged willow warbler; CW, crowned willow warbler; BB, black-faced bunting; WR, wren. Black and white horizontal bars at the bottom of the figure indicate observation periods for winter and summer birds, respectively. (B) Proportion by dry mass of terrestrial prey to the total diets in stream fish species. The proportion differed significantly among both seasons and species (P < 0.0001 for both by Friedman test). RBT, rainbow trout; WSC, white-spotted char; DV, Dolly Varden; MS, masu salmon; SC, freshwater sculpin. Black and white portions of horizontal bars at bottom of figure indicate leafing and defoliation periods.