Browsing by Author "Mishra, Prajna Paramita"

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    Evidence of similarities in ecosystem service flow across the rural–urban spectrum
    (MDPI, 2021-04-17) Welivita, Indunee; Willcock, Simon; Lewis, Amy; Bundhoo, Dilshaad; Brewer, Timothy R.; Cooper, Sarah; Lynch, Kenneth; Mekala, Sneha; Mishra, Prajna Paramita; Venkatesh, Kongala; Rey Vicario, Dolores; Hutchings, Paul
    In 2006, the world’s population passed the threshold of being equally split between rural and urban areas. Since this point, urbanisation has continued, and the majority of the global population are now urban inhabitants. With this ongoing change, it is likely that the way people receive benefits from nature (ecosystem services; ES) has also evolved. Environmental theory suggests that rural residents depend directly on their local environment (conceptualised as green-loop systems), whereas urban residents have relatively indirect relationships with distant ecosystems (conceptualised as red-loop systems). Here, we evaluate this theory using survey data from >3000 households in and around Hyderabad, India. Controlling for other confounding socioeconomic variables, we investigate how flows of 10 ES vary across rural, peri-urban and urban areas. For most of the ES we investigated, we found no statistical differences in the levels of direct or indirect use of an ecosystem, the distance to the ecosystem, nor the quantities of ES used between rural and urban residents (p > 0.05). However, our results do show that urban people themselves often travel shorter distances than rural people to access most ES, likely because improved infrastructure in urban areas allows for the transport of ES from wider ecosystems to the locality of the beneficiaries’ place of residence. Thus, while we find some evidence to support red-loop–green-loop theory, we conclude that ES flows across the rural-urban spectrum may show more similarities than might be expected. As such, the impact of future urbanisation on ES flows may be limited, because many flows in both rural and urban areas have already undergone globalisation
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    Nature provides valuable sanitation services
    (Elsevier, 2021-02-19) Willcock, Simon; Parker, Alison; Wilson, Charlotte; Brewer, Timothy R.; Bundhoo, Dilshaad; Cooper, Sarah; Lynch, Kenneth; Mekala, Sneha; Mishra, Prajna Paramita; Rey, Dolores; Welivita, Indunee; Venkatesh, Kongala; Hutchings, Paul
    Much previous research shows that safe disposal of human waste has a positive impact on human wellbeing, while preventing the degradation of ecosystems. However, to date, the role that ecosystems themselves play in treating human waste has been largely neglected. We conceptualize the role nature plays in treating human waste—acting as a pipeline and/or treatment plant. We estimate that nature is treating ~41.7 million tons of human waste per year worldwide, a service worth at least 4.4 ± 3.0 billion USD year−1. We demonstrate the opportunities and challenges of quantifying these “sanitation ecosystem services,” using 48 cities across the globe as a worked example. In highlighting this, we are not marginalizing the vital role of engineered infrastructure, but instead are promoting better understanding of how engineered and natural infrastructure interact within a circular economy. This is a promising route for further research and may allow adaptive design and management, reducing costs, and improving effectiveness and sustainability.
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    Understanding rural-urban transitions in the Global South through peri-urban turbulence
    (Springer, 2022-08-04) Hutchings, Paul; Willcock, Simon; Lynch, Kenneth; Bundhoo, Dilshaad; Brewer, Timothy R.; Cooper, Sarah; Keech, Daniel; Mekala, Sneha; Mishra, Prajna Paramita; Parker, Alison; Shackleton, Charlie M.; Venkatesh, Kongala; Rey Vicario, Dolores; Welivita, Indunee
    Much previous research has problematized the use of a binary urban–rural distinction to describe human settlement patterns in and around cities. Peri-urban zones, on the edge of urban settlements, are important both in the sheer magnitude of human population and in terms of being home to vulnerable populations with high rates of poverty. This Perspective presents a framework that conceptualizes rural–urban transition through the prism of shifts in natural, engineered and institutional infrastructure to explain the processes of rapid change and the dip in service provision often found in peri-urban areas in the Global South. We draw on examples related to the provision of water and sanitation to illustrate the theory and discuss its implications for future research on the peri-urban. A research agenda is set out that emphasizes the importance of studying early warning signs of service dips using systems theory concepts such as flickering and critical slowing down. Through such approaches, research can better predict and explain what we call peri-urban turbulence and inform the development of mitigation strategies to reduce the vulnerabilities that peri-urban residents too often face during periods of rural–urban transition.