Table 1.
Number of recognized species of New World Myotis based on general region and genetic distance value comparisons.
Figure 1.
Distribution of collecting localities for specimens used in this study.
Numbers of specimens from each general region are as follows: South America (135), North America (51), Caribbean (17), and Central America (8). Four specimens were Old World representatives and are not shown. Map generated using the planiglobe ® (http://www.planiglobe.com/omc_set.html) digital vector map tool.
Figure 2.
Bayesian phylogram of cytochrome-b sequence data (n = 140).
Species names are based on museum and field records. Bolded species names are currently recognized by Simmons [13] and serve as the species representative (from GenBank [2], [3], [16] or from specimens sequenced herein). Black bolded branches are lineages that are ≥5.0% divergent and red bolded branches are lineages ≥2.0% divergent. Bolded numbers within species names indicate specimens that were originally identified as the named species, but were found to be independent lineages that are ≥5.0% divergent. The pound sign (#) indicates all specimens originally identified as M. nigricans. OW = Old World lineages of M. brandtii and M. gracilis. Kerivoula papillosa and M. latirostris are outgroup taxa but are not shown in the phylogram. Support for nodes are presented as Bayesian posterior probabilities ≥0.95 (*), maximum likelihood bootstrap pseudo-replicate values ≥75% (**), or support in both analyses (***). Additional specimen information is in Table S1.
Figure 3.
Kimura 2-parameter pairwise distances based on cytochrome-b sequence data.
Y-axis indicates the number of total pairwise comparisons of sequences and the X-axis indicates the Kimura 2-paramter distance values among ingroup taxa. Note the large portion of pairwise values over 10% (average divergence of 13.14%).
Figure 4.
Diversity estimates based on currently recognized species and genetic lineages presented herein.
The number of lineages restricted to each region (distributions based on [12]–[16]) is shown as a percentage of the total. A) percentage of diversity in each region based on currently recognized diversity, B) percentage of diversity in each region based on a species divergence level set at ≥5.0% using cytochrome-b DNA sequence data, C) percentage of diversity in each region based on a species divergence level set at ≥2.0%. Note the proportion of lineages from each region changes from the current levels, when compared to the lineages at 5.0% and 2.0%.
Table 2.
Species lineage information based on cytochrome-b analyses.