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Fig. 2 | Revista Chilena de Historia Natural

Fig. 2

From: Fragmentation of Chilean Andean rivers: expected effects of hydropower development

Fig. 2

River network with five stretches such that L1 = L2 = L3 = L4 = 1, L5 = 2, and S1 = S2 = S4 = 1, S3 = S5 = 2. Then T= \( {\sum}_{j=1}^5{L}_j{S}_j \) = 9. For barriers a, b, c and d we can calculate IFI (a) = 1/9, IFI (b) = 4/9, IFI (c) = 1/9 and IFI (d) = 1 respectively. Hence, ∑i {A, B, C, D}IFI(i) = 15/9. Then FI (a) = 0.044, FI (b) = 0.164, FI (c) = 0.044, and FI (d) = 0.333 (See text for more details)

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