Resumo

GONZALEZ-VALDIVIA, Noel A. et al. Mirmecofauna associated with agroforestry systems in the Mesoamerican Biological Corridor in Tabasco, Mexico. Rev. Mex. Biodiv. [online]. 2013, vol.84, n.1, pp.306-317. ISSN 2007-8706.  https://doi.org/10.7550/rmb.30996.

Myrmecofaunal richness, abundance and distribution were studied as indicators for ecological monitoring of agroforestry systems (SAF) in 3 regions in the Mesoamerican Biological Corridor of Tabasco, Mexico. The agroforestry systems analyzed were linearly arranged trees (AL) and scattered trees on pastures (ADP). The research sets up the baseline to assess the conservation status of this biological group in SAF in prioritized regions in the Mesoamerican Biological Corridor (Tacotalpa, Tenosique and Huimanguillo municipalities). We collected 52 792 specimens belonging to 131 species assigned to 7 subfamilies. We found 32 species new to the area and 7 morphospecies catalogued as affinis for Tabasco. Total richness for ADP consisted of 16 (±6) species in Tenosique, 19 (±6) in Huimanguillo, and 20 (±4) in Tacotalpa. Species richness for AL consisted of 20 (±5) species in Tenosique, 21 (±5) in Huimanguillo, and 21 (±4) in Tacotalpa. Ant diversity in ADP systems was 1.52 (±0.36) in Tenosique, 0.84 (±0.49) in Huimanguillo, and 1.35 (±0.44) in Tacotalpa. Diversity for AL systems was estimated in 1.87 (±0.36) in Tenosique, 1.06 (±0.55) in Huimanguillo, and 1.33 (±0.45) in Tacotalpa. Ant species dominance was detected in all AL and ADP systems along the 3 regions (D> 0.26). Communities were inequitably distributed and the major homogeneity was reached in Tenosique (J≥ 0.57 to ADP and 0.63 to AL, respectively). Ant composition was different between systems and regions. No species were detected as indicators since all use broadly the agroecosystems.

Palavras-chave : conservation; biological corridor; ant diversity; monitoring; landscape.