Abstract
Different methods are available to estimate the wildlife population development. In this paper a method based on hunter surveys of a Spanish game preserve is proposed. A Poisson model is fitted to estimate the relationship between hunting success and other independent variables. In order to find the most appropriate model, a model selection procedure based on repeated cross validation is used to determine which explanatory variables describe the hunting success better in terms of prediction ability. The estimatedmodel is successful in the case of the red legged partridge (Alectoris rufa). The model can be used for applying different management criteria in a game preserve. Some possibilities are demonstrated for particular scenarios.
Highlights
A correct assessment of the number of animals in a wildlife population is the first step for a sustainable management of this population
In the following we will focus on the best model, but one has to keep in mind that other models could be considered for the explanation of hunting success of Perd
Our results show that it is possible to develop powerful models to predict hunting success
Summary
A correct assessment of the number of animals in a wildlife population is the first step for a sustainable management of this population. Relevant is the between species interaction such as predator-prey (Virgos and Travaini, 2005). This predator-prey interaction is in many cases critical if the predator is highly specialized and depending on the prey. An example is the Iberian Lynx (Lynx pardinus) and the Spanish imperial eagle (Aquila adalberti), which both depend on the European rabbit (Oryctolagus cuniculus) (DelibesMateos, Delibes, Ferreras, and Villafuerte, 2008). Their interactions on the environment are most relevant because their effects spread out over the ecosystem.
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