The impact of invasive species on social-ecological systems: Relating supply and use of selected provisioning ecosystem services

Linders, Theo E. W.; Bekele, Ketema; Schaffner, Urs; Allan, Eric; Alamirew, Tena; Choge, Simon K.; Eckert, Sandra; Haji, Jema; Muturi, Gabriel; Mbaabu, Purity Rima; Shiferaw, Hailu; Eschen, René (2020). The impact of invasive species on social-ecological systems: Relating supply and use of selected provisioning ecosystem services. Ecosystem services, 41, p. 101055. Elsevier 10.1016/j.ecoser.2019.101055

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Understanding the sustainability of social-ecological systems requires quantifying the relationships between ecosystem service supply and use. However, these relationships, and the influence of environmental change on supply and use, are poorly known. Here we apply a nested sampling design to analyse supply-use relationships in ten administrative units in each of two Eastern African regions undergoing invasion by an alien tree, Prosopis juliflora. Ecological data on supply of two key provisioning services, woody and herbaceous biomass, were collected in field plots and the use, defined here as income and livestock numbers, was assessed using household surveys. Supply and use were then up-scaled to the level of the smallest administrative unit. High Prosopis cover affected the supply of both services, with increased woody biomass but reduced herbaceous biomass. We found that supply of woody biomass was positively associated with income from wood sales. Prosopis invasion reduced income from livestock and slightly decreased cattle numbers over the past ten years. We propose that biophysical and socio-economic data collected at the same scale can help to determine supply-use relationships for ecosystem services and we discuss how integration of supply-use data can inform sustainable management of social-ecological systems in the context of environmental change.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Centre for Development and Environment (CDE)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Biodiversity

UniBE Contributor:

Linders, Theo Edmund Werner; Allan, Eric and Eckert, Sandra

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

2212-0416

Publisher:

Elsevier

Projects:

[411] Woody invasive alien species in East Africa

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

22 Jan 2020 16:22

Last Modified:

26 Jan 2020 02:50

Publisher DOI:

10.1016/j.ecoser.2019.101055

BORIS DOI:

10.7892/boris.139063

URI:

https://boris.unibe.ch/id/eprint/139063

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