VEGA-VELA, Valeria et al. Analysis of landscape fragmentation in the Los Tuxtlas Biosphere Reserve, Veracruz, Mexico. Ecosistemas y recur. agropecuarios [online]. 2018, vol. 5, n. 14, pp. 227-238. ISSN 2007-901X. https://doi. org/10.19136/era. a5nl4. 1442.