The effect of landscape on functional connectivity and shell shape in the land snail Humboldtiana durangoensis.

摘要: The populations of Humboldtiana durangoensis have experienced a drastic reduction in the effective population size; addition, species is threatened by anthropogenic activities. For aforementioned, landscape genetics will serve as tool to define potential evolutionarily significant units (ESU) for this species. To complete our objective, we evaluated effect cover vegetation and climate on functional connectivity from last glacial maximum (LGM) present well shell shape. Partial Mantel tests, distance-based redundance analysis Bayesian framework were used evaluate connectivity. On other hand, geometric morphometrics, phylogenetic principal component redundancy Our results suggest that suitable areas been decreasing since LGM; also, rather than has influenced genetic among land snail populations, although temperature had high influence shape In conclusion, was main factor determined snail; however, local selective pressures led different phenotypes allowed us postulate each one previously defined groups must be considered ESU.