Advanced Search
MyIDEAS: Login to save this paper or follow this series

A Microfoundation of Predator-Prey Dynamics

Contents:

Author Info

  • Thomas Eichner
  • Rüdiger Pethig

    ()

Abstract

Predator-prey relationships account for an important part of all interactions between species. In this paper we provide a microfoundation for such predator-prey relations in a food chain. Basic entities of our analysis are representative organisms of species modelled similar to economic households. With prices as indicators of scarcity, organisms are assumed to behave as if they maximize their net biomass subject to constraints which express the organisms' risk of being preyed upon during predation. Like consumers, organisms face a 'budget constraint' requiring their expenditure on prey biomass not to exceed their revenue from supplying own biomass. Short-run ecosystem equilibria are defined and derived. The net biomass acquired by the representative organism in the short term determines the positive or negative population growth. Moving short-run equilibria constitute the dynamics of the predator-prey relations that are characterized in numerical analysis. The population dynamics derived here turn out to differ significantly from those assumed in the standard Lotka-Volterra model.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL: http://www.wiwi.uni-siegen.de/vwl/repec/sie/papers/110-03.pdf
Download Restriction: no

Bibliographic Info

Paper provided by Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht in its series Volkswirtschaftliche Diskussionsbeiträge with number 110-03.

as in new window
Length: 32 pages
Date of creation: 2003
Date of revision:
Handle: RePEc:sie:siegen:110-03

Contact details of provider:
Postal: Hölderlinstr. 3, D - 57068 Siegen
Phone: ++49 (0)271 740-3139
Fax: ++49 (0)271 740-2590
Email:
Web page: http://www.uni-siegen.de/fb5/vwl/research/diskussionsbeitraege/
More information through EDIRC

Related research

Keywords: organism; biomass; species; population; predator-prey dynamics;

Other versions of this item:

Find related papers by JEL classification:

This paper has been announced in the following NEP Reports:

References

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
as in new window
  1. Thomas Eichner & Rüdiger Pethig, 2003. "The impact of scarcity and abundance in food chains on species population dynamics," Volkswirtschaftliche Diskussionsbeiträge 109-03, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
  2. Thomas Crocker & John Tschirhart, 1992. "Ecosystems, externalities, and economies," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 2(6), pages 551-567, November.
  3. Finnoff, David & Tschirhart, John, 2003. "Harvesting in an eight-species ecosystem," Journal of Environmental Economics and Management, Elsevier, vol. 45(3), pages 589-611, May.
Full references (including those not matched with items on IDEAS)

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Thomas Eichner & Rüdiger Pethig, 2007. "Harvesting in an integrated general equilibrium model," Volkswirtschaftliche Diskussionsbeiträge 127-07, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
  2. Thomas Christiaans & Thomas Eichner & Rüdiger Pethig, 2005. "Optimal pest control in agriculture," Volkswirtschaftliche Diskussionsbeiträge 122-05, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
  3. Thomas Christiaans & Thomas Eichner & Rüdiger Pethig, 2005. "A Micro-Level 'Consumer Approach' to Species Population Dynamics," CESifo Working Paper Series 1530, CESifo Group Munich.
  4. John Tschirhart, 2012. "Biology as a Source of Non-convexities in Ecological Production Functions," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 51(2), pages 189-213, February.
  5. Thomas Eichner & Rüdiger Pethig, 2004. "Economic land use, ecosystem services and microfounded species dynamics," Volkswirtschaftliche Diskussionsbeiträge 116-04, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
  6. Thomas Eichner & Rüdiger Pethig, 2006. "Efficient nonanthropocentric nature protection," Social Choice and Welfare, Springer, vol. 26(1), pages 47-74, January.

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:sie:siegen:110-03. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Michael Gail).

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.