Biology – Quantitative Biology – Populations and Evolution
Scientific paper
2012-03-05
Biology
Quantitative Biology
Populations and Evolution
15 pages, 4 figures. First version submitted to Human Ecology. The final publication will be available at http://www.springerl
Scientific paper
We measured mobility patterns that describe walking trajectories of individual Me'Phaa peasants searching and collecting fuelwood in the forests of "La Monta\~na de Guerrero" in Mexico. These one-day excursions typically follow a mixed pattern of nearly-constant steps when individuals displace from their homes towards potential collecting sites and a mixed pattern of steps of different lengths when actually searching for fallen wood in the forest. Displacements in the searching phase seem not to be compatible with L\'evy flights described by power-laws with optimal scaling exponents. These findings however can be interpreted in the light of deterministic searching on heavily degraded landscapes where the interaction of the individuals with their scarce environment produces alternative searching strategies than the expected L\'evy flights. These results have important implications for future management and restoration of degraded forests and the improvement of the ecological services they may provide to their inhabitants.
Ceccon Eliane
DeSouza Og
Hernández Diego
Miramontes Octavio
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