Author(s)

Rosina Kyerematen¹, Fatmata Kaiwa², Daniel Acquah-Lamptey³, Samuel Adu-Acheampong^4*, Roger Sigismond Andersen⁵

¹Department of Animal Biology and Conservation Science, University of Ghana, Legon, Ghana.
²Department of Biological Sciences, Fourah Bay College, Freetown, Sierra Leone.
³Faculty of Biology, Department of Ecology-Animal Ecology, Philipps University of Marburg, Marburg, Germany.
⁴Department of Agronomy, University for Development Studies, Tamale, Ghana.
⁵African Regional Postgraduate Programme in Insect Science, University of Ghana, Accra, Ghana.

In a bid to enhance the integrity and health of selected network of ecosystems and effectively manage them in Sierra Leone, a baseline assessment of butterfly diversity of two wetland ecosystems Mamunta Mayosso Wildlife Santuary (MMWS) and Sierra Leone River Estuary (SLRE) affected by different environmental stressors was undertaken as part of the Sierra Leone Wetland Conservation Project (SLWCP). We hypothesised that different environmental stressors affect butterfly communities in wetlands in Sierra Leone and the higher the stress the lower the butterfly diversity in an area. Sampling was conducted via field identification by wing patterns, flight mode, direct counts along transects and charaxes trapping. A total of 2300 individuals representing 95 species of butterflies were recorded. Though butterflies were evenly distributed at both sites, MMWS recorded the highest richness and abundance of butterflies during both seasons. This observation is reported to be because of high environmental stressors such as mining, agriculture and pollution from factories in the SLRE. The results further show that MMWS is made up of a mosaic of different vegetation patches that support higher diversity of butterfly species. This study also reveals that anthropogenic activities have a negative impact on butterfly diversity.

Biodiversity, Butterflies, Environment, Sierra Leone, Wetlands

Kyerematen, R. , Kaiwa, F. , Acquah-Lamptey, D. , Adu-Acheampong, S. and Andersen, R. (2018) Butterfly Assemblages of Two Wetlands: Response of Biodiversity to Different Environmental Stressors in Sierra Leone. Open Journal of Ecology, 8, 379-395. doi: 10.4236/oje.2018.87023.