Population Study of Coiba Howler Monkeys (Alouatta CoibensisCoibensis) and Coiba Capuchin Monkeys (Cebus Capucinus Imitator), Coiba Island National Park, Republic of Panama

Méndez‐Carvajal, Pedro G.

doi:10.4172/2167-6801.1000104

Cited by 6 publications

(8 citation statements)

References 12 publications

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“…Knowing whether these capuchins are an endemic species or subspecies will be important in affecting conservation decisions in an area that is threatened by development and climate change [90]. Coiba is home to an endemic subspecies of howler monkey, A. palliata coibensis [123,124], which some consider to be its own species, A. coibensis [92,125]. However, no similar genetic or morphological comparisons of Coiban archipelago versus mainland capuchin populations have been undertaken to determine if the Coiban capuchins are taxonomically unique.…”

Section: Discussionmentioning

confidence: 99%

“…Observations from a 12-day survey in 1974 estimated capuchin group sizes on Coiba to be similar to mainland populations at Barro Colorado Island [84]. Later estimates [92] show similar group sizes with a mean of 10.75 individuals (range 5–16) and suggest that capuchins on Coiba Island occur at low densities. However, an increased sampling effort, different surveying methodologies (such as randomization, camera trapping and mark-recapture analysis) and recent advances in analytical approaches might yield a different estimate.…”

Section: Study Sitementioning

confidence: 97%

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Habitual stone-tool-aided extractive foraging in white-faced capuchins,Cebus capucinus

et al. 2018

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Habitual reliance on tool use is a marked behavioural difference between wild robust (genus Sapajus) and gracile (genus Cebus) capuchin monkeys. Despite being well studied and having a rich repertoire of social and extractive foraging traditions, Cebus sp. rarely use tools and have never been observed using stone tools. By contrast, habitual tool use by Sapajus is widespread. We review theory and discuss factors which might explain these differences in patterns of tool use between Cebus and Sapajus. We then report the first case of habitual stone tool use in a gracile capuchin: a population of white-faced capuchins (Cebus capucinus imitator) in Coiba National Park, Panama who habitually rely on hammerstone and anvil tool use to access structurally protected food items in coastal areas including Terminalia catappa seeds, hermit crabs, marine snails, terrestrial crabs and other items. This behaviour has persisted on one island in Coiba National Park since at least 2004. From 1 year of camera trapping, we found that stone tool use is strongly male-biased. Of the 205 camera trap days where tool use was recorded, adult females were never observed to use stone tools, although they were frequently recorded at the sites and engaged in scrounging behaviour. Stone tool use occurs year-round in this population; over half of all identifiable individuals were observed participating. At the most active tool use site, 83.2% of days where capuchins were sighted corresponded with tool use. Capuchins inhabiting the Coiba archipelago are highly terrestrial, under decreased predation pressure and potentially experience resource limitation compared to mainland populations—three conditions considered important for the evolution of stone tool use. White-faced capuchin tool use in Coiba National Park thus offers unique opportunities to explore the ecological drivers and evolutionary underpinnings of stone tool use in a comparative within- and between-species context.

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Section: Discussionmentioning

confidence: 99%

Section: Study Sitementioning

confidence: 97%

Habitual stone-tool-aided extractive foraging in white-faced capuchins,Cebus capucinus

et al. 2018

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“…Previous studies from Fundación Pro-Conservación de los Primates Panameños (FCPP) have been monitoring the Coiba Island howler´s populations as a long-term project since 2009 to the present, calculating 472 individuals and a group size average of 4.3 ind/groups, with 109 groups for the island comprising a habitat size of 504 km 2 (Méndez-Carvajal 2012; Méndez-Carvajal 2019). Additionally, the group structure for this species tends to have only one or two males per group (unimale-multifemale), which is different from A. palliata, which has 4 to 6 males and larger groups (multimale-multifemale) (Méndez-Carvajal 2012;Méndez-Carvajal 2019). The average group size observed represents the smaller reported for an Alouatta species, and genetic diversity studies are required to better understand their populations and any possible inbreeding effect due to isolation.…”

Section: Introductionmentioning

confidence: 95%

“…In this study, the genetic diversity, connectivity, and demographic history of the species were briefly analysed. Understanding genetic diversity and connectivity is essential for evaluating isolation effects and other factors that have been suggested to affect population structure, such as low reproductive success, low food quality, and inbreeding (Méndez-Carvajal 2012;Oklander et al 2017). These data will provide useful information for future studies of the connectivity and phylogeography of A. coibensis, together with demographic studies, will add relevant information concerning the variability of haplotype composition and phylogenetic relationships of Mesoamerican howler monkeys, providing information that could be comparable to other primate species living under similar habitat conditions and for conservation purposes.…”

Section: Introductionmentioning

confidence: 99%

GENETIC APPROACH OF THE COIBA ISLAND HOWLER MONKEY Alouatta coibensis coibensis FROM PANAMA, AND ITS CONSERVATION IMPLICATIONS

Díaz-Ferguson,

Ramos,

Pineda

et al. 2024

Tecnociencia

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Studies on genetic diversity are key to conservation management because they may determine the resilience of primate populations under environmental and anthropogenic changes. Herein, we studied genetic diversity and connectivity in a population sample of the Coiba island howler monkey Alouatta coibensis coibensis from Coiba island in Panama. We collected 14 faecal samples from individuals at two sites on the northern and north-eastern sides of the island at the Gambute and Los Pozos trails, respectively. DNA was extracted from these samples, and partial sequences of cytochrome oxidase I (COI) were obtained and used as molecular markers to determine genetic diversity. Haplotypic diversity estimates ranged from 0.68 to 0.80 and from 0.0026 to 0.0041 for nucleotide diversity. Genetic connectivity based on reduced genetic distances and nonsignificant Hudson Snn test values suggests elevated connectivity between sites and the existence of a single population with good variability. Demographic history data identified positive Tajimas D as an indication of population contraction and reduced population size in this species. These results will be the baseline for establishing a better understanding of population structure, genetic health, connectivity patterns and reproductive behaviour along the largest island of the Central American Pacific. This information will allow scientists to understand and better evaluate the conservation status of this primate, confirming good availability of genetic flow even for this population living in isolation.

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“…Las especies vegetales fueron identificadas por especialistas botánicos del Herbario de la Universidad de Panamá. Empleamos el transecto en franja para registrar a las aves, caminamos con velocidad de 1 a 2.5 km/h linealmente, con registro lateral de entre 5 y 10 m (Méndez-Carvajal 2012). En el área A1 el transecto de franja lo realizamos por la calle principal y secundarias de la comunidad, en el área A2 se realizó en los caminos reales de los potreros y entre los bosques de galería, en el área A3 se caminó rodeando parte de la laguna (Figura 1).…”

Section: Métodos De Muestreounclassified

Diversidad ecológica de aves en un hábitat fragmentado en la comunidad de Rincón Largo, Chiriquí, Panamá

Gutiérrez-Pineda¹,

Méndez‐Carvajal

2020

Huitzil Rev. Mex. Ornitol.

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Los estudios de diversidad ecológica son esenciales para promover planes de educación científica-ambiental y conservación. Estudios previos de biodiversidad se han realizado en tierras altas para la provincia de Chiriquí, pero pocos para tierras bajas. El objetivo fue evaluar la diversidad ecológica de aves en la comunidad de Rincón Largo, un paisaje fragmentado con actividad antropogénica ubicado en tierras bajas de la provincia. Se considero el uso de suelo para categorizar tres áreas de observación: A1 (calles principales y aledañas), A2 (cercas vivas, pastizales y bosques de galería), A3 (laguna artificial). Utilizamos métodos de observación Ad-libitum, transecto de franja y poste de observación. Las observaciones las realizamos de enero a diciembre de 2018, con esfuerzo de muestreo total de 1,920 hrs. Detectamos 469 individuos en 91 especies, 33 familias, 15 órdenes. Los índices de Diversidad alpha muestran que existe alta diversidad, abundancia y riqueza, con equitatividad en las familias. Las tres áreas de observación no presentan diferencia significativa en la diversidad alpha, H = 5.6, P = 0.06, aunque marginal. Estos resultados describen por primera vez la avifauna de Rincón Largo y muestran la capacidad de retención de biodiversidad original en zonas fragmentadas con base en corredores biológicos como cercas vivas, bosques de galería y árboles frutales, crucial en conservación.

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Population Study of Coiba Howler Monkeys (Alouatta CoibensisCoibensis) and Coiba Capuchin Monkeys (Cebus Capucinus Imitator), Coiba Island National Park, Republic of Panama

Cited by 6 publications

References 12 publications

Habitual stone-tool-aided extractive foraging in white-faced capuchins,Cebus capucinus

Habitual stone-tool-aided extractive foraging in white-faced capuchins,Cebus capucinus

GENETIC APPROACH OF THE COIBA ISLAND HOWLER MONKEY Alouatta coibensis coibensis FROM PANAMA, AND ITS CONSERVATION IMPLICATIONS

Diversidad ecológica de aves en un hábitat fragmentado en la comunidad de Rincón Largo, Chiriquí, Panamá

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