Abstract: From 2015 to 2016, we chose different interference habitats to collect butterfly in Nanniwan wetlands: Naniwancun (YGS), Houjiulongquan (TGS), Mengjiagou (THS), Danangou (WTS). We collected a total of 329 specimens which belong to 36 species in 27 genera under 5 families. Pieridae was the dominant family and Pieris rapae was the dominant species in the four habitats. The analysis of fauna revealed that the individual percentages of widely distributed species (W), Palaearctic species (P) and Oriental species (O) were 55.6%, 39.2% and 5.2%, and the species number percentages of P, W and O were 50.0%, 36.1% and 13.9%, respectively. The four habitats had the same tendency in genus number, species number, and individual number, with WTS having the highest ones of 23, 27, and 132 respectively, followed by THS, TGS, and YGS in sequence. They had the same tendency in species richness, diversity index and evenness index, with WTS having the highest ones of 5.3248, 0.4393, and 0.1333 respectively, followed by THS, TGS, and YGS in sequence. YGS had the highest dominance index of 0.3265, followed by TGS, THS, and WTS in sequence. The habitat complexity of the four habitats decreased gradually with the increase of interference, being in the order of WTS, THS, TGS, and YGS. Viewed from the butterfly resources of the four habitats, ecological succession of Nanniwan wetland had not reached the climax community, and butterfly resources were not abundant.

Key words: shellfish, Ecopath model, Yellow River estuary., ecological carrying capacity