Watershed: a more efficient sampling unit for mountain camera traps.

Although topographic factors have no significant correlation with species monitoring results, elevation has a highly significant positive correlation with Yunnan pine forest proportion ( r = 0.62, p < 0.001) and significant negative correlations with the proportions of broad-leaved forests ( r = -0.52, p < 0.01), shrubs ( r = -0.50, p < 0.01), and herbaceous plants ( r = -0.47, p < 0.05) (Fig. 6 a).

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