Abstract
Geometric morphometrics and molecular methods are effective tools to study the variability of stingless bee populations and species that merit protection given their worldwide decline. Based on previous evidence of cryptic lineages within the Scaptotrigona genus, we tested the existence of multiple evolutionary lineages within the species S. mexicana and we investigated the status of S. pectoralis. By analyzing their population structure, we found differences between the Pacific and Atlantic populations of each of these species, although geometric morphometrics of the wing only confirmed these results in S. mexicana. There was a tendency towards enhanced genetic differentiation over larger distances in the Atlantic populations of both species but not in the Pacific populations. These results revealed a pattern of differentiation among evolutionary units and a specific distribution of genetic diversity within these Scaptotrigona species in Mesoamerica, suggesting the need for future taxonomic revisions, as well as activities aimed at management and conservation.
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Acknowledgments
We appreciate the stingless beekeepers and Dr. Remy Vandame that provided samples. We also thank the editor and three anonymous reviewers for their comments which helped improve the manuscript and BiomedRed for English editing. This research has been funded by the Regional Government of Murcia (Fundación Séneca; Grant Number 19908/GERM/2015) and Conacyt (“CONSERVACION DE LAS ABEJAS SIN AGUIJON DE MEXICO” Grant Number 103341). Dr. De la Rúa is presently member and receives support from COST Action FA1307, Sustainable pollination in Europe: joint research on bees and other pollinators, SUPER-B (http://www.cost.eu/COST_Actions/fa/Actions/FA1307).
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Miguel Hurtado-Burillo and Laura Jara have contributed equally to this work.
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Hurtado-Burillo, M., Jara, L., May-Itzá, W. et al. A geometric morphometric and microsatellite analyses of Scaptotrigona mexicana and S. pectoralis (Apidae: Meliponini) sheds light on the biodiversity of Mesoamerican stingless bees. J Insect Conserv 20, 753–763 (2016). https://doi.org/10.1007/s10841-016-9899-1
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DOI: https://doi.org/10.1007/s10841-016-9899-1