Kin structure and parallel dispersal in the black-and-gold howler monkey Alouatta caraya (Platyrrhini, Atelidae)

Abstract

ABSTRACT. We here investigated the kin structure and pattern of dispersal in the black-and-gold howler monkey (Alouatta caraya, Platyrrhini, Atelidae) based on genotype differences at nine microsatellite loci of 48 individuals from eight social groups along the riparian forest of the Tocantins River, Brazil. The genetic diversity (H E = 0.647) was similar to or higher than previously reported values in other Alouatta species. Given that no spatial kinship structure was detected, we found no evidence that dispersal was constrained by distance within the spatial scale analyzed (<25 km). Although no evidence was found for sex-biased dispersal, our results strongly suggest that extra-group copulations are common in A. caraya, and that both males and females disperse from their natal group.

Diversidad genética en grupos de monos aulladores de manto (Alouatta palliata mexicana) en la Reserva de la Biosfera Los Tuxtlas (Veracruz, México)

“…Referencias: A. belzebul (Schneider et al, 1991;Melo, Sampaio, Schneider y Schneider, 1992;Sampaio, Schneider y Schneider, 1996;Zaldívar et al, 2003;Gonçalves et al, 2004;Nascimento, Bonvicino, da Silva, Schneider y Seuanez, 2005;Nascimento, Bonvicino, de Oliveira, Schneider y Seuánez, 2008;Bastos, Gonçalves, Ferrari, Silva y Schneider, 2010). A. caraya (Szapkievich, Comas, Zunino y Mudry, 1998;Nascimento et al, 2005;Ascunce, Hasson, Mulligan y Mudry, 2007;Nascimento et al, 2007;Oklander, Zunino, Di Fiore y Corach, 2007;Ruiz-García et al, 2007;Oklander et al, 2010;Collevatti, Souza-Neto, Silva-Jr y Telles, 2013;Oklander y Corach, 2013). A. macconnelli (Ruiz-García et al, 2007).…”

Dispersal patterns in black howler monkeys (Alouatta pigra): Integrating multiyear demographic and molecular data

“…This 15‐year study that combined multiyear demographic data of six social groups with longitudinal and cross‐sectional genetic sampling of a larger number of groups largely supported the hypothesis of bisexual dispersal with a bias towards males in black howler monkeys. As in other howler species (Clarke & Glander, 2008, 2010; Collevatti & Telles, 2013; Crockett & Pope, 1993; Glander, 1992; Lecompte et al, 2017; Oklander et al, 2010; Pope, 1992; Rumiz, 1990), both black howler males and females disperse from their natal groups and either immigrate into an already‐existing group or form a new group with other dispersing individuals. Yet, there is a high skew toward male dispersal as virtually all sons disappeared or emigrated from their natal group while over half of the daughters stayed and reproduced in theirs.…”

“…)—large‐bodied, arboreal, nonhuman primates that are broadly distributed throughout Central and South America—are characterized by a bisexual dispersal pattern in which both males and females may emigrate from their natal group and subsequently may immigrate into an established group, form a new group with other solitary individuals, or remain solitary (Crockett, 1984; Glander, 1992; Pope, 1992; Rumiz, 1990; Van Belle, Estrada, & Strier, 2008, 2011). Nevertheless, there is substantial variation among species and populations, with males and females dispersing at similar rates in mantled howlers ( Alouatta palliata : Glander, 1992) and black‐and‐gold howlers ( Alouatta caraya : Collevatti & Telles, 2013; Oklander et al, 2010; Rumiz, 1990), while females are more philopatric than males in ursine howlers ( Alouatta arctoidea : Crockett, 1984; Pope, 1992) and Guianan red howlers ( Alouatta macconnelli : Lecompte et al, 2017). Little is known about the dispersal pattern in black howlers ( Alouatta pigra ).…”