Summary of the effects
| Theme | Description | Affected places in SSA | References |
|---|---|---|---|
| Biodiversity loss | Wetland areas are diminishing, limiting their ability to absorb floods and support biodiversity |
| (Balwan and Kour, 2021; Blanckenberg et al., 2020; Gitonga and Kanyepi, 2022; Leisher et al., 2022; Mosepele and Mosepele, 2021; Stephenson et al., 2020; Thamaga et al., 2022; Orie, 2017) |
| Flooding and altered hydrology | Uncontrolled construction in floodplains has increased the frequency and severity of flooding in the city since wetlands that used to absorb excess water have been built over |
| (Ekolu et al., 2024; Ficchì and Stephens, 2019; Geris et al., 2022; Hoguane and Antonio, 2016; Ketter, 2018; Kibugu et al., 2022; Moeketsi et al., 2022) |
| Water quality degradation | Reduced water filtering capacity leads to lower water quality in the city’s rivers and streams |
| (Chen et al., 2022; Donatus et al., 2022; Diop et al., 2022; Gatwaza and Wang, 2021; Lapworth et al., 2017; Nkiaka et al., 2021; Nalubega and Kansiime, 2020; Thompson et al., 2017) |
| Loss of livelihoods | The degradation of these wetlands has resulted in decreasing fish stocks and agricultural output, causing economic hardship and food security issues for locals |
| (Adhya and Banerjee, 2022; Ballut-Dajud et al., 2022; Idiege et al., 2017; Kundu et al., 2024; Nyamao, 2015; Triplet et al., 2018; Zekarias et al., 2021) |
| Theme | Description | Affected places in SSA | References |
|---|---|---|---|
| Biodiversity loss | Wetland areas are diminishing, limiting their ability to absorb floods and support biodiversity | Nairobi River Basin − Kenya Lagos Lagoon − Nigeria Okavango Delta − Botswana Cape Flats wetlands − South Africa | ( |
| Flooding and altered hydrology | Uncontrolled construction in floodplains has increased the frequency and severity of flooding in the city since wetlands that used to absorb excess water have been built over | Incomati River wetlands − Mozambique Msimbazi River Basin − Tanzania Jukskei River catchment − South Africa | ( |
| Water quality degradation | Reduced water filtering capacity leads to lower water quality in the city’s rivers and streams | Nyabarongo Wetlands − Rwanda Nakivubo Swamp − Uganda Densu Delta wetlands − Ghana Niger River wetlands − Mali | ( |
| Loss of livelihoods | The degradation of these wetlands has resulted in decreasing fish stocks and agricultural output, causing economic hardship and food security issues for locals | Mombasa wetlands, including the Tudor Creek area (Kenya) Senegal River Delta in Saint-Louis Lekki region of Lagos − Nigeria | ( |
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