Group Composition, Mating System, and Relatedness in the Communally Breeding Guira Cuckoo (<i>Guira guira</i>) in Central Brazil

Lima, Marcos Robalinho; Macêdo, Regina H.; Muniz, Laura; Pacheco, Angela M.; Graves, Jeff A.

doi:10.1525/auk.2011.10234

Cited by 10 publications

(5 citation statements)

References 41 publications

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“…Total group size can therefore range up to 15 individuals. Pair bonds are less obvious in smooth‐billed anis and lacking in guira cuckoos, and genetic mating patterns range from monogamy to polygynandry (Blanchard, 2000; Lima et al., 2011). Egg ejection and egg burial (in the smooth‐billed ani) are most common at the beginning of the laying period, but often persist throughout the laying period and even into incubation, increasing the costs of reproductive competition and the odds of nest failure (Macedo et al., 2004; Schmaltz et al., 2008).…”

Section: Crotophagine Cuckoosmentioning

confidence: 99%

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Evolutionary origins of cooperative and communal breeding: Lessons from the crotophagine cuckoos

Riehl

2021

Ethology

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Cooperatively breeding animals live in social groups in which some individuals help to raise the offspring of others. In many species, cooperative breeding occurs in family groups in which a single breeding pair is assisted by one or more non-reproductive "helpers," who are typically related to the brood that they help to rear (Koenig & Dickinson, 2004;Skutch, 1935). In other species, several adults contribute offspring to a shared brood and cooperatively provide parental care (typically referred to as "communal" breeders to distinguish them from cooperative species with non-reproductive

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Section: Crotophagine Cuckoosmentioning

confidence: 99%

“…Total group size can therefore range up to 15 individuals. Pair bonds are less obvious in smooth-billed anis and lacking in guira cuckoos, and genetic mating patterns range from monogamy to polygynandry (Blanchard, 2000;Lima et al, 2011).…”

Section: Crotophag Ine Cuckoosmentioning

confidence: 99%

Evolutionary origins of cooperative and communal breeding: Lessons from the crotophagine cuckoos

Riehl

2021

Ethology

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“…To minimize the probability of falsely excluding true relationships in subsequent relatedness analyses due to biased observed r-values, the IREL was used to identify the cut-off relatedness values specific to the present sample (Russello and Amato 2004). The performance of the set of markers was evaluated by assessing the change in relatedness estimates as additional loci were added to the analyses, performing a rarefaction procedure with the web-based platform RE-RAT (Schwacke et al 2005), as described in Lima et al (2011).…”

Section: Population Genetic Parameters Effective Population Size Esti...mentioning

confidence: 99%

Inferred kinship patterns reveal low levels of extra-pair paternity in the endangered Neotropical Jabiru Stork (Jabiru mycteria, Aves: Ciconiiformes)

et al. 2013

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The present study inferred the genetic mating system in a natural breeding population of the Jabiru Stork (Jabiru mycteria), a Neotropical wading bird considered endangered in part of its distribution range. Based on data from eight microsatellite loci, maximum-likelihood kinship reconstruction techniques, parentage assignment analyses and effective population size (Ne) estimates were applied to samples collected in the Brazilian Pantanal wetland (N = 45 nestlings from 20 nests; N = 17 shed adult feathers from 11 nests). The relationship diagnosis was determined for most of the complete clutches (86.66 %): 92.31 % were full siblings and 7.69 % were half siblings. Shed feathers collected from the nests matched the genetic parents of the offspring in 80 % of cases. Feathers collected from the ground below the nests were compatible with the putative parents in 41.67 % of cases. A mean Ne of 35 reproductive individuals was inferred, corresponding to an Ne/Nc ratio of 0.09, which is similar to the ratio found in populations of a number of different wild animals. The higher proportion of full siblings identified in the broods suggests that genetic monogamy is the prevalent mating system in the Jabiru Stork, while the detection of half siblings suggests some degree of extra-pair paternity. The present findings are in agreement with previous ecological observations of social monogamy in this species, despite the isolated evidence of extra-pair copulation events. This study also demonstrates the usefulness of a noninvasive approach to sampling adults and performing parentage and relatedness analyses in an elusive, threatened species.

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“…Female woodpeckers usually disperse with relatives to compete for vacant territory. In contrast, in yuhinas, Groove-billed anis ( Crotophaga sulcirostris ) [ 52 , 53 ], Guira cuckoos ( Guira guira ) [ 54 , 55 ] and Greater anis ( Crotophaga major )[ 56 ], group members are not related to same-sex co-breeders. In many of the studies described above, relatedness is inferred from dispersal patterns, or only first-order relatives can be determined due to small sample size or the low resolution of genetic markers, but see [ 51 , 57 ].…”

Section: Discussionmentioning

confidence: 99%

The Genetic Relatedness in Groups of Joint-Nesting Taiwan Yuhinas: Low Genetic Relatedness with Preferences for Male Kin

et al. 2015

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The relative importance of direct and indirect fitness and, thus, the role of kinship in the evolution of social behavior is much debated. Studying the genetic relatedness of interacting individuals is crucial to improving our understanding of these issues. Here, we used a seven-year data set to study the genetic structure of the Taiwan yuhina (Yuhina brunneciceps), a joint-nesting passerine. Ten microsatellite loci were used to investigate the pair-wised relatedness among yuhina breeding group members. We found that the average genetic relatedness between same-sex group members was very low (0.069 for male dyads and 0.016 for female dyads). There was also a low ratio of closely-related kin (r>0.25) in the cooperative breeding groups of yuhinas (21.59% and 9.68% for male and female dyads, respectively). However, the relatedness of male dyads within breeding groups was significantly higher than female dyads. Our results suggest that yuhina cooperation is maintained primarily by direct fitness benefits to individuals; however, kin selection might play a role in partner choice for male yuhinas. Our study also highlights an important, but often neglected, question: Why do animals form non-kin groups, if kin are available? We use biological market theory to propose an explanation for group formation of unrelated Taiwan yuhinas.

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Group Composition, Mating System, and Relatedness in the Communally Breeding Guira Cuckoo (Guira guira) in Central Brazil

Cited by 10 publications

References 41 publications

Evolutionary origins of cooperative and communal breeding: Lessons from the crotophagine cuckoos

Evolutionary origins of cooperative and communal breeding: Lessons from the crotophagine cuckoos

Inferred kinship patterns reveal low levels of extra-pair paternity in the endangered Neotropical Jabiru Stork (Jabiru mycteria, Aves: Ciconiiformes)

The Genetic Relatedness in Groups of Joint-Nesting Taiwan Yuhinas: Low Genetic Relatedness with Preferences for Male Kin

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