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The Influence of Agroforestry and Other Land-Use Types on the Persistence of a Sumatran Tiger (Panthera tigris sumatrae) Population: An Individual-Based Model Approach

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  • Muhammad Ali Imron

    (Dresden University of Technology, Faculty of Forest, Geo and Hydro-Sciences, Institute of Silviculture and Forest Protection, Lectureship of Wildlife Ecology and Game Management
    Gadjah Mada University, Wildlife Ecology and Management, Faculty of Forestry)

  • Sven Herzog

    (Dresden University of Technology, Faculty of Forest, Geo and Hydro-Sciences, Institute of Silviculture and Forest Protection, Lectureship of Wildlife Ecology and Game Management)

  • Uta Berger

    (Dresden University of Technology, Faculty of Forest, Geo and Hydro-Sciences, Institute of Forest Growth and Computer Science)

Abstract

The importance of preserving both protected areas and their surrounding landscapes as one of the major conservation strategies for tigers has received attention over recent decades. However, the mechanism of how land-use surrounding protected areas affects the dynamics of tiger populations is poorly understood. We developed Panthera Population Persistence (PPP)—an individual-based model—to investigate the potential mechanism of the Sumatran tiger population dynamics in a protected area and under different land-use scenarios surrounding the reserve. We tested three main landscape compositions (single, combined and real land-uses of Tesso-Nilo National Park and its surrounding area) on the probability of and time to extinction of the Sumatran tiger over 20 years in Central Sumatra. The model successfully explains the mechanisms behind the population response of tigers under different habitat landscape compositions. Feeding and mating behaviours of tigers are key factors, which determined population persistence in a heterogeneous landscape. All single land-use scenarios resulted in tiger extinction but had a different probability of extinction within 20 years. If tropical forest was combined with other land-use types, the probability of extinction was smaller. The presence of agroforesty and logging concessions adjacent to protected areas encouraged the survival of tiger populations. However, with the real land-use scenario of Tesso-Nilo National Park, tigers could not survive for more than 10 years. Promoting the practice of agroforestry systems surrounding the park is probably the most reasonable way to steer land-use surrounding the Tesso-Nilo National Park to support tiger conservation.

Suggested Citation

  • Muhammad Ali Imron & Sven Herzog & Uta Berger, 2011. "The Influence of Agroforestry and Other Land-Use Types on the Persistence of a Sumatran Tiger (Panthera tigris sumatrae) Population: An Individual-Based Model Approach," Environmental Management, Springer, vol. 48(2), pages 276-288, August.
    • Handle: RePEc:spr:envman:v:48:y:2011:i:2:d:10.1007_s00267-010-9577-0
    DOI: 10.1007/s00267-010-9577-0
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