Population Density of the Mantled Howler Monkey (Alouatta palliata) at La Selva Biological Reserve, Costa Rica: A New Technique to Analyze Census Data

Biotropica ◽  
1994 ◽  
Vol 26 (3) ◽  
pp. 332 ◽  
Author(s):  
Kathryn Elizabeth Stoner
Keyword(s):  
Costa Rica ◽  
Population Density ◽  
Census Data ◽  
Alouatta Palliata ◽  
New Technique ◽  
Howler Monkey ◽  
La Selva ◽  
Mantled Howler ◽  
A New Technique ◽  
Biological Reserve

Howling on the edge: Mantled howler monkey (Alouatta palliata) howling behaviour and anthropogenic edge effects in a fragmented tropical rainforest in Costa Rica

Ethology ◽  
2019 ◽  
Vol 125 (9) ◽  
pp. 593-602 ◽  
Author(s):  
Laura M. Bolt ◽  
Amy L. Schreier ◽  
Dorian G. Russell ◽  
Zachary S. Jacobson ◽  
Carrie Merrigan‐Johnson ◽  
...  
Keyword(s):  
Costa Rica ◽  
Edge Effects ◽  
Tropical Rainforest ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Mantled Howler ◽  
Mantled Howler Monkey

Phylogeography of the Mantled Howler Monkey (Alouatta palliata; Atelidae, Primates) across Its Geographical Range by Means of Mitochondrial Genetic Analyses and New Insights about the Phylogeny of Alouatta

2017 ◽  
Vol 88 (5) ◽  
pp. 421-454 ◽  
Author(s):  
Manuel Ruiz-García ◽  
Ángela Cerón ◽  
Sebastián Sánchez-Castillo ◽  
Pilar Rueda-Zozaya ◽  
Myreya Pinedo-Castro ◽  
...  
Keyword(s):  
Alouatta Palliata ◽  
Geographical Range ◽  
Howler Monkey ◽  
Genetic Analyses ◽  
Mantled Howler ◽  
Mantled Howler Monkey

Patterns of male–male association in mantled howlers (Alouatta palliata) at La Pacifica, Costa Rica: effects of dominance rank and age

Behaviour ◽  
2014 ◽  
Vol 151 (7) ◽  
pp. 993-1020 ◽  
Author(s):  
Lisa C. Corewyn ◽  
Mary A. Kelaita
Keyword(s):  
Costa Rica ◽  
Dominance Rank ◽  
Demographic Factors ◽  
Alouatta Palliata ◽  
Adult Males ◽  
Cooperative Relationships ◽  
Mantled Howler ◽  
Mantled Howlers ◽  
Close Proximity ◽  
Study Sites

Cooperative relationships among male primates are emerging as an important aspect of primate social behavior. What remains unclear is the extent to which male associations with coresident males vary within species, and what social and demographic factors drive these associations. This information provides an important contribution to our understanding of how cooperative relationships play an adaptive role in the evolution of male social and reproductive strategies. To examine the nature of male associations and the influence of social and demographic factors, including rank and age, we collected 1751 h of focal behavioral data on adult males in two large multimale–multifemale groups of mantled howlers (Alouatta palliata) at La Pacifica, Costa Rica. Both groups inhabited upland forest area, were of similar size and sex ratio, and exhibited strongly linear male hierarchies. Based on observed spatial associations within 3 m proximity, dyadic patterns varied from strongly preferred to strongly avoided associations that were largely consistent among dyads over the study period. In contrast to reports from other mantled howler study sites, neither rank nor age differences among males predicted whether dyads spent any time in proximity to one another, nor the amount of time in proximity. However, higher-ranked males within dyads were more likely to maintain close proximity than their lower-ranked counterparts. Our results provide important data on the nature of male associations within mantled howler groups with linear dominance relationships, and are suggestive of the adaptive value of cooperative relationships.

scholarly journals A ten-year demographic history of a population of howler monkeys (Alouatta palliata) living in a fragmented landscape in Mexico

2015 ◽  
Author(s):  
Jurgi Cristóbal Azkarate ◽  
Jacob Charles Dunn ◽  
Cristina Domingo Balcells ◽  
Joaquim Veà Baró
Keyword(s):  
Demographic History ◽  
Demographic Data ◽  
Resource Scarcity ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Fragmented Landscape ◽  
Howler Monkeys ◽  
Mantled Howler ◽  
Mantled Howler Monkey

Long-term field studies of primates are critical for our understanding of life history and the processes driving changes in demography. Here, we present the first long-term demographic data for the northernmost population of the mantled howler monkey (Alouatta palliata). We followed 10 groups of howler monkeys living in a highly fragmented landscape between 2000 and 2011. Forest fragmentation did not seem to play a major role in the dynamics of our population, as the population size remained relatively stable over the 10-year study period, and birth rates and inter-birth intervals were comparable to those of howler monkeys at other sites. Moreover, dispersal events were commonplace, particularly secondary dispersal (individuals emigrating from groups that they had previously immigrated into), which supports the suggestion that this may be an important component of the reproductive strategy of the mantled howler monkey. Finally, we found a marked effect of seasonality on the population dynamics of our study population. In particular, the period of lowest temperatures and resource scarcity between November and March was associated with higher mortality and reproductive inhibition, while the period of resource abundance between April and May was associated with the majority of conceptions and weaning of offspring. This, in turn, could be influencing dispersal patterns in our study area, as male howler monkeys seem to time some of their immigrations into new groups to coincide with the start of the period of higher fertility, while females preferentially joined new groups several months before the onset of this period.

scholarly journals Abnormal pelage color in mantled howler monkey (Alouatta palliata mexicana) in Veracruz, México

2021 ◽  
Vol 2 (1) ◽  
pp. 26-28
Keyword(s):  
Alouatta Palliata ◽  
Howler Monkey ◽  
Mantled Howler ◽  
Pelage Color ◽  
Ad Libitum ◽  
Mantled Howler Monkey ◽  
Alouatta Palliata Mexicana

El leucismo es una despigmentación total o parcial del pelaje, mientras que el albinismo es la pérdida total de pigmentos en el cuerpo entero; las condiciones anormales de la carencia del pigmento se deben a la expresión de genes recesivos.  Se realizó una expedición ad libitum en el Ejido Álvaro Obregón, al suroeste de Nuevo Cantón, municipio de Uxpanapa, Veracruz en diciembre de 2019.  Presentamos el primer registro de un individuo de mono aullador de manto (Alouatta palliata mexicana) con coloración no convencional (probablemente leucismo o albinismo), observado en una tropa silvestre en la región del Valle de Uxpanapa, Veracruz, México.  La coloración de la mucosa oral y palpebral no muestran pigmentación y pueden ser resultado de la expresión de genes recesivos en el individuo, por lo que realizar estudios más profundos sobre la expresión de genes recesivos ampliaría la comprensión del fenómeno.

scholarly journals A demographic history of a population of howler monkeys (Alouatta palliata) living in a fragmented landscape in Mexico

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3547 ◽  
Author(s):  
Jurgi Cristóbal Azkarate ◽  
Jacob C. Dunn ◽  
Cristina Domingo Balcells ◽  
Joaquim Veà Baró
Keyword(s):  
Demographic History ◽  
Resource Scarcity ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Fragmented Landscape ◽  
Howler Monkeys ◽  
Mantled Howler ◽  
Study Population ◽  
Mantled Howler Monkeys

Long-term field studies are critical for our understanding of animal life history and the processes driving changes in demography. Here, we present long-term demographic data for the northernmost population of mantled howler monkeys (Alouatta palliata) residing in a highly anthropogenically fragmented landscape in Los Tuxtlas, Mexico. We carried out 454 monthly group visits to 10 groups of mantled howler monkeys between 2000 and 2011. The population remained relatively stable over the 11-year study period, with an overall increase in the total number of individuals. Birth rates and inter-birth intervals were comparable to those of howler monkeys at non-fragmented sites, suggesting that living in a fragmented landscape did not affect the reproductive output of our study population. Moreover, despite the landscape, dispersal events were commonplace, including many secondary dispersals (individuals emigrating from groups that they had previously immigrated into). Finally, we found a marked effect of seasonality on the dynamics of our study population. In particular, the period of lowest temperatures and resource scarcity between November and March was associated with higher mortality and reproductive inhibition, while the period of resource abundance between April and May was associated with the majority of conceptions and weaning of offspring. This, in turn, could be influencing dispersal patterns in our study area, as male howler monkeys seem to time some of their immigrations into new groups to coincide with the start of the period of higher fertility, while females preferentially joined new groups several months before the onset of this period. These data have important implications for the conservation and management of howler monkeys in fragmented landscapes, as well as for our understanding of the effect of seasonality over howler monkey dispersal, reproduction and survival.

Living in Islands of Forests: Nutritional Ecology of the Howler Monkey (Alouatta palliata) at La Suerte Biological Field Station, North-Eastern Costa Rica

2015 ◽  
pp. 525-538 ◽  
Author(s):  
Flavia Occhibove ◽  
Claudia Ferro ◽  
Marco Campera ◽  
Gian Battista Liponi ◽  
Silvana M. Borgognini-Tarli ◽  
...  
Keyword(s):  
Costa Rica ◽  
Nutritional Ecology ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Field Station ◽  
North Eastern ◽  
Biological Field

Howling by the river: howler monkey (Alouatta palliata) communication in an anthropogenically-altered riparian forest in Costa Rica

Behaviour ◽  
2019 ◽  
Vol 157 (1) ◽  
pp. 77-100 ◽  
Author(s):  
Laura M. Bolt ◽  
Dorian G. Russell ◽  
Elizabeth M.C. Coggeshall ◽  
Zachary S. Jacobson ◽  
Carrie Merrigan-Johnson ◽  
...  
Keyword(s):  
Costa Rica ◽  
Animal Communication ◽  
Riparian Forest ◽  
Alouatta Palliata ◽  
Primate Species ◽  
Howler Monkey ◽  
Forest Edges ◽  
Forest Fragment ◽  
Resource Defence ◽  
Animal Vocalization

Abstract The ways that forest edges may affect animal vocalization behaviour are poorly understood. We investigated the effects of various types of edge habitat on the loud calls (howls) of a folivorous-frugivorous primate species, Alouatta palliata, with reference to the ecological resource defence hypothesis, which predicts that males howl to defend vegetation resources. We tested this hypothesis across four forest zones — interior, riparian, anthropogenic, and combined forest edges — in a riparian forest fragment in Costa Rica. We predicted vegetation and howling would differ between forest zones, with riparian and interior zones showing the highest values and anthropogenic edge the lowest. Our results indicated that vegetation was richer and howling longer in riparian and interior zones compared to combined and anthropogenic edges, supporting the resource defence hypothesis and providing some of the first evidence in animal communication scholarship for differences in behavioural edge effects between natural riparian and anthropogenic edges.

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