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Giannetti-Domínguez AD, Rangel-Negrín A, Coyohua-Fuentes A, Dias PAD. Leadership and the finder's advantage in mantled howler monkeys. Am J Primatol 2024; 86:e23651. [PMID: 38804875 DOI: 10.1002/ajp.23651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 04/15/2024] [Accepted: 05/11/2024] [Indexed: 05/29/2024]
Abstract
Leading collective movements and arriving first at feeding sites may improve food acquisition. Specifically, the first individual to discover and exploit a feeding site may gain a feeding advantage known as the "finder's advantage." The aim of this research was to verify if the probability of leading group movements to feeding sites in mantled howler monkeys (Alouatta palliata) varied by sex and reproductive status, and whether finders had higher foraging success than followers. We studied 18 adult individuals from two groups in La Flor de Catemaco over a year (978 h), and sampled group movements (n = 211) and foraging behavior (n = 215 feeding episodes). Gestating females were leaders and finders of group movements to feeding sites more often than expected but were also replaced in the leading position more frequently than individuals of other sex/reproductive states. Feeding behavior was not influenced by the order of arrival at feeding sites per se, but gestating females had higher food intake rate, bite rate, and feeding time when arriving earlier (i.e., occupying front group positions) than later. Therefore, leadership and the finder's advantage occur in this species and are probably employed by gestating females to maintain their energetic condition.
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Affiliation(s)
| | - Ariadna Rangel-Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
| | - Alejandro Coyohua-Fuentes
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
| | - Pedro A D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
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Dias PAD, Coyohua-Fuentes A, Canales-Espinosa D, Rangel-Negrín A. Demography and life-history parameters of mantled howler monkeys at La Flor de Catemaco: 20 years post-translocation. Primates 2023; 64:143-152. [PMID: 36346535 DOI: 10.1007/s10329-022-01030-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/16/2022] [Indexed: 11/09/2022]
Abstract
Translocations usually aim at maintaining and enhancing wild populations. Thus, the long-term monitoring of translocated individuals is critical for assessing translocation success. In this study, we report the demographic and life-history parameters of mantled howler monkeys that were translocated to La Flor de Catemaco (Los Tuxtlas, Mexico) to determine the success of the translocation process. Nine individuals belonging to two social groups living in areas that were going to be destroyed were released into La Flor de Catemaco between 2002 and 2004. Before 2022 there were no resident monkeys at the site. From January 2012 to December 2021, we recorded births, deaths, migrations, and group formation (1535 sampling days). The population grew until reaching 35 mantled howler monkeys. Two new groups including both individuals born at the site and migrants were founded. Mean ± SD group size was 8.1 ± 1.1 individuals. We recorded 42 births and 14 deaths, mostly of young infants (< 6 months of age). We recorded emigrations and immigrations of adult and immature individuals as well as several instances of individuals that remained and reproduced in their natal groups. Mean female age at first birth was 57.8 ± 18.5 months, interbirth intervals were 23.3 ± 11.3 months, and birth rates were 0.5 ± 0.2 births per female per year. The growth and persistence of the groups at the site, as well as similarity in demographic and life-history parameters between this and unmanaged populations, suggest that mantled howler monkeys living at La Flor de Catemaco represent a stable population and thus that this was a successful translocation.
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Affiliation(s)
- Pedro Américo D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, Mexico.
| | - Alejandro Coyohua-Fuentes
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, Mexico
| | - Domingo Canales-Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, Mexico
| | - Ariadna Rangel-Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, Mexico.
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de la Torre A, Coyohua Fuentes A, Rangel Negrín A, Velarde Garcéz DA, Canales Espinosa D, Cervantes Acosta P, Dias PAD. Maternal care according to offspring sex and maternal physical condition in mantled howler monkeys (Alouatta palliata). Primates 2021; 62:379-388. [PMID: 33523342 DOI: 10.1007/s10329-020-00883-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/09/2020] [Indexed: 10/22/2022]
Abstract
The Trivers-Willard hypothesis (TWH) posits that maternal care will be biased in favor of the sex that provides the greatest fitness returns per unit of investment, depending on maternal physical condition. Our aim was to examine the TWH in mantled howler monkeys living at Los Tuxtlas (Veracruz, Mexico). The biological attributes of mantled howler monkeys (Alouatta palliata) meet the assumptions of TWH better than those of other explanations, so we expected that females in better physical condition should bias maternal care toward sons, whereas mothers in worse physical condition should bias care toward daughters. Between December 2017 and March 2019, we studied mother-infant interactions in 20 dyads with focal-animal sampling and continuous recording (N = 204 h). We performed genetic analysis to determine offspring sex (N = 7 daughters and 13 sons) and measured C-peptide in urine samples of mothers to assess their physical condition (N = 46 samples). Mothers in better physical condition spent less time in contact with their sons but more time in contact with their daughters. For proximity behavior, mothers in better physical condition spent more time near their sons and less time near their daughters. These results suggest a bias in maternal care towards daughters, contrary to our predictions. In light of current models of maternal investment, our results support that mothers obtain higher fitness returns through daughters.
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Affiliation(s)
- Amalia de la Torre
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México
- Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México
| | - Alejandro Coyohua Fuentes
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México
| | - Ariadna Rangel Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México
| | - Daniel A Velarde Garcéz
- Instituto iBIOTROP, Museo de Zoología and Laboratorio de Zoología Terrestre, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Domingo Canales Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México
| | | | - Pedro Américo D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, 91190, Xalapa, México.
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Rangel Negrín A, Coyohua Fuentes A, de la Torre Herrera A, Cano Huertes B, Reynoso Cruz E, Ceccarelli E, Gómez Espinosa EE, Chavira Ramírez DR, Moreno Espinoza DE, Canales-Espinosa D, Maya Lastra N, Cruz Miros P, Cañadas Santiago S, Garau S, Dias PAD. Female reproductive energetics in mantled howler monkeys (Alouatta palliata): A follow-up study. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 174:396-406. [PMID: 33429455 DOI: 10.1002/ajpa.24222] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/12/2020] [Accepted: 12/20/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Reproduction entails several challenges to primate females, among which energetic costs are remarkable at certain stages of the reproductive cycle. Still, females may use behavioral and physiological strategies to cope with those challenges. We had previously reported covariation between female energetic condition through the reproductive cycle and time-budget adjustments in mantled howler monkeys (Alouatta palliata). Accordingly, we suggested that behavioral flexibility allowed coping with the energetic challenges of reproduction. Subsequent evidence from the same population, however, suggested otherwise, so we performed a follow-up study on the variation in female reproductive energetics based on a larger sample of females. METHODS We studied 48 free-ranging adult females at Los Tuxtlas (Mexico). We assessed energy balance via urinary C-peptide concentrations (2717 urine samples), behavioral energy intake and expenditure (5728 sampling hours), and physiological energy expenditure via fecal triiodothyronine metabolites (fTH3; 3138 fecal samples). RESULTS We found that energy balance varied among reproductive states: (a) cycling was a period of low C-peptide concentrations; (b) the highest C-peptide concentrations occurred during gestation; and (c) the beginning of lactation marked a notable decrease in C-peptide concentrations, which then improved at mid-lactation to again decline at lactation offset. These peaks and valleys in energy balance did not seem to be associated with variation in energy acquisition but were rather mirrored by activity levels and fTH3 during lactation. DISCUSSION Energy balance was not preserved through the reproductive cycle, supporting previous contentions that the reproductive performance of female mantled howler monkeys may be energetically constrained. The contrast between these and results that we have previously reported, highlights the importance of conducting follow-up studies to continually improve our understanding of the reproductive energetics of primate females.
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Affiliation(s)
- Ariadna Rangel Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | | | - Amalia de la Torre Herrera
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Beatriz Cano Huertes
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Eduardo Reynoso Cruz
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Enrico Ceccarelli
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Eugenia E Gómez Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - David R Chavira Ramírez
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | - Diana E Moreno Espinoza
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Domingo Canales-Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Natalia Maya Lastra
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Pamela Cruz Miros
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Samuel Cañadas Santiago
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Sociedad Mexicana Forense del Documento y la Escritura S.C., Xalapa, Mexico.,Departamento de Didáctica de las Ciencias Experimentales, Universidad de Granada, Granada, Spain
| | - Sara Garau
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Pedro A D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
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Dias PAD, Montero Domínguez IL, Rangel Negrín A. Factors influencing infant sex ratio in howler monkeys (Alouatta spp.): A literature review and analysis. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2020; 172:48-57. [PMID: 32141069 DOI: 10.1002/ajpa.24035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/11/2020] [Accepted: 02/19/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Frequency-dependent selection is expected to maintain infant sex ratios around parity over evolutionary time. However, over ecological time periods, infant sex ratios vary, and it has been proposed that this variation may reflect adaptive processes. In primates, there are consistent patterns of variation in infant sex ratios, although their adaptive significance remains contentious. In addition to design issues, contrasting results could have derived across primates from variation in the fitness benefits accrued through sons or daughters associated with the specific social, ecological, and demographic context of populations. Thus, different sex allocation tactics could occur within species over time and space. METHODS We reviewed the literature to describe variation in infant sex ratio in howler monkeys (genus Alouatta) and to examine whether such a variation could be associated with adaptive sex allocation. We found 26 studies that provided data for this review. These studies yielded 96 infant sex reports, corresponding to 1,477 sexed infants. RESULTS Infant sex ratio across howler monkey species tends to parity, but females produce more sons under high group densities and more daughters when rainfall increases. DISCUSSION Based on these results, as well as on information on howler monkey dispersal patterns, demography, and within-group genetic relatedness, we speculate that, depending on population growth stage, sex allocation is explained by (a) local resource enhancement, that is, more cooperative philopatric daughters are produced when populations are growing; and (b) local resource competition, that is, more dispersing sons are produced when populations are saturated. Thus, there is evidence suggestive of adaptive variation in infant sex ratios in howler monkeys.
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Affiliation(s)
- Pedro A D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Irma L Montero Domínguez
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Ariadna Rangel Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
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