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Social diversity and ecological complexity: how an invasive tree could affect diverse agents in the land of the tiger

Published online by Cambridge University Press:  25 July 2007

VIKRAM DAYAL
VIKRAM DAYAL
Affiliation:
Institute of Economic Growth, University Enclave, North Delhi Campus, Delhi – 110 007, India. Email: vikday@iegindia.org, vikday@yahoo.com
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Abstract

A bioeconomic model is used to study the effect of Prosopis juliflora, an exotic tree, on diverse agents in Ranthambhore National Park. Tigers prey on wild herbivores, cattle, and goats that compete with each other to feed on green biomass, i.e. leaves and grass. There are four agents: goat owner, cattle owner, wood gatherer, and park manager. It is shown that there is an inherent trade-off between the number of tigers and village livestock that are grazing. Prosopis juliflora makes management of this trade-off more difficult. The four agents have different interests in the park, and a different ranking of the four scenarios that are simulated.

Information

Type
Research Article
Information
Environment and Development Economics , Volume 12 , Issue 4 , August 2007 , pp. 553 - 571
Copyright
2007 Cambridge University Press

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Footnotes

Professor Kanchan Chopra and Professor Partha Sen guided me. Dr Robert Scholes gave me equations relating to the productivity of plant biomass in semi-arid areas. The Ventana Corporation generously provided the Vensim software with which the model was simulated. Professor Karl-Goran Maler and Dr Anne-Sophie Crepin gave detailed comments, at the Ecological Economics Programme at ICTP, Trieste. Professor Charles Perrings and Dr David Simpson commented on preliminary versions of this paper. Three reviewers provided extensive and detailed comments.