| effect of ancestry on behavioral variation in two species of howler monkeys (alouatta pigra and a. palliata) and their hybrids. | social differences between primate species may result from both flexible responses to current conditions or fixed differences across taxa, yet we know little about the relative importance of these factors. here, we take advantage of a naturally occurring hybrid zone in tabasco, mexico to characterize the variation in social structure among two endangered howler monkey species, alouatta pigra and a. palliata, and their hybrids. work in pure populations has suggested that a. pigra females maintain ... | 2014 | 24668503 |
| morphological variation of genetically confirmed alouatta pigra × a. palliata hybrids from a natural hybrid zone in tabasco, mexico. | while hybridization has been reported for a large number of primate taxa, there is a general lack of data on hybrid morphology for wild individuals with known genetic ancestry. a confirmed hybrid zone for the closely related neotropical primates alouatta palliata and a. pigra has provided a unique opportunity to study primate hybrid morphological variation. here we used molecular evidence based on mitochondrial, y-chromosome, and autosomal data to assess hybrid ancestry. we conducted univariate ... | 2013 | 23225250 |