Figure 2 from: Ernst R, Lautenschläger T, Branquima MF, Hölting M (2020) At the edge of extinction: a first herpetological assessment of the proposed Serra do Pingano Rainforest National Park in Uíge Province, northern Angola. Zoosystematics and Evolution 96(1): 237-262. https://doi.org/10.3897/zse.96.51997

Figure 2 Permuted species accumulation curves (species-based rarefaction curve, grey envelop represents SE based confidence intervals) of amphibian species richness for a. Uíge province and b. the SPFE. y-axis: estimated species richness, x-axis: sampling years (1-4: 2013, 2014, 2018, 2019).