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Influence of climate and economic variables on the aggregated supply of a wild edible fungi (Lactarius deliciosus)
Alfranca Burriel, Òscar; Voces González, Roberto; Diaz Balteiro, Luis
Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia; Universitat Politècnica de Catalunya. GREA - Grup de Recerca d´Enginyeria Agro-Ambiental
A mycological supply function of wild edible fungi is determined by a set of forest and economic variables, among which climate variables stand out. Focusing on wild mushroom picking with commercial value (Lactarius deliciosus (L.) Gray) as an example, the main objective of this paper is to obtain empirical evidence about the impact of meteorological and economic variables on the mushroom supply. A multidisciplinary vector error correction (VEC) model for mushroom supply is estimated. Coefficients for the Error Correction Term (ECT) are all significant, at the 0.01 significance level, both in the model for prices and for collected mushrooms. The value of the ECT coefficient in the equation for prices is -0.086 (t-value: -9.321), and for the collected mushroom equation is 0.499 (t-value: 3.913). The impact of precipitation on price changes is -0.104 (t-value: -1.66), and the impact of temperature on mushroom harvest picking is 0.605 (t-value: 3.07). We find that including climate factors to explain mushroom supply considerably strengthens the explanatory power of the model, and in some cases greatly changes the results.
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències forestals
Edible fungi
FOREST MANAGEMENT
PINE FORESTS
MUSHROOM PRODUCTIVITY
SPECIES RICHNESS
BOLETUS-EDULIS
ECTOMYCORRHIZAL
SPAIN
MACROFUNGI
REGRESSION
FRUCTIFICATION
Bolets comestibles
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
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