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The frequency of climate-related disasters such as floods is growing due to environmental and human factors. This paper examines the impact of flooding and communities’ perceptions towards responses to flooding in the cases of Maniini and Tshilungwi Villages in the Thulamela Municipality in the Limpopo Province of South Africa. A questionnaire survey was conducted with 60 household respondents in the two selected villages and then analysed. Key-informant interviews with community leaders and municipality officials established the key impact of and responses to the flooding. Secondary data on flooding provided useful historical trends in the region. Field observations assisted in corroborating information provided in interviews. The findings indicate that communities are vulnerable to flood disasters, and these disasters had a significant impact on infrastructure and the livelihood of the selected communities. An increase in household income and levels of education as well as access to grants decreased households’ vulnerability in cases of flooding. The responses to flooding by the municipality were viewed negatively by the community who did not support permanent relocation. Hence, the article points out the need to strengthen coping mechanisms by local governments and communities themselves in order to cope with the impact of flooding.

Functional response quantifies microplastic uptake by a widespread African fish species. Science of the Total Environment.

Leaf litter contributes to the functioning of aquatic ecosystems through allochthonous inputs of carbon, nitrogen, and other elements. Here, we examine leaf litter nutrient inputs and decomposition associated with four plant species using a mesocosm approach. Native sycamore fig Ficus sycomorus L., and silver cluster–leaf Terminalia sericea Burch. ex DC. decomposition dynamics were compared to invasive tickberry Lantana camara L. and guava Psidium guajava L., whereby phosphate, nitrate, nitrite, silicate, and ammonium releases were quantified over time. Leaf inputs significantly reduced pH, with reductions most marked by invasive L. camara. Conductivity was heightened by all leaf input treatments, except native T. sericea. Leaf inputs significantly affected all nutrient levels monitored in the water over time, except for silicate. In particular, leaf litter from invasive L. camara drove significantly increased nutrient concentrations compared to other native plant species, whilst effects of invasive P. guajava were less statistically clear. The end weights of the leaf litter demonstrated decomposition differences among the species types, following a decreasing order of P. guajava > T. sericea > F. sycomorus > L. camara, further suggesting high organic inputs from invasive L. camara. The study results highlight that differential leaf litter decomposition rates of four plant species can play a significant role in nutrient release, in turn altering aquatic ecosystem productivity. However, these effects likely depend on species-specific differences, rather than between invasive–native species generally. Shifting terrestrial plant communities may alter aquatic community composition, but specific effects are likely associated with leaf traits.

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