The economics of a stage-structured wildlife population model

A four-stage model (calves, yearlings, adult female and adult male) of the Scandinavian moose (Alces alces) is formulated. Fecundity is density dependent while mortality is density independent. The paper aims to demonstrate the economic content of such a wildlife model and how this content may chang...

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Bibliographic Details
Main Authors: Jon Olaf Olaussen, Anders Skonhoft
Format: Report
Language:unknown
Subjects:
Online Access:http://www.svt.ntnu.no/iso/WP/2005/17Stagemodel0507.pdf
Description
Summary:A four-stage model (calves, yearlings, adult female and adult male) of the Scandinavian moose (Alces alces) is formulated. Fecundity is density dependent while mortality is density independent. The paper aims to demonstrate the economic content of such a wildlife model and how this content may change under shifting economic and ecological conditions. Two different harvesting regimes are explored: hunting for meat, and trophy hunting. It is shown how different ways to compose the harvest influences the profitability while, at the same time, the population levels of the different stages may only change modestly. It is also shown why different market situations require different compositions of the harvest, knowledge that is disregarded in the traditional bioeconomic modelling approach. wildlife; harvesting; trophy hunting