When roads appear jaguars decline: Increased access to an Amazonian wilderness area reduces potential for jaguar conservation.

We observed a positive relationship of ungulate prey biomass with distance to settlements ( r = 0.71; P < 0.001; HDI 95 = 0.61 to 0.79; Fig 3A ) and distance to roads ( r = 0.34; P < 0.001; HDI 95 = 0.21 to 0.48; Fig 3B ), and a marginally significant relationship with access to rivers ( r = 0.19; P = 0.06, HDI 95 = 0.02 to 0.33; Fig 3C ).

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