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See detailGastrointestinal Parasites in Captive and Free-ranging Cebus albifrons in the Western Amazon, Ecuador.
Martin, Sarah ULiege; Carrillo Bilbao, Gabriel Alberto; Ramirez, William et al

in International Journal for Parasitology: Parasites and Wildlife (2017)

Currently, there is a lack of surveys that report the occurrence of gastrointestinal parasites in the white-headed capuchin monkey (Cebus albifrons). We therefore assessed the presence and richness ... [more ▼]

Currently, there is a lack of surveys that report the occurrence of gastrointestinal parasites in the white-headed capuchin monkey (Cebus albifrons). We therefore assessed the presence and richness (= number of different parasite genera) of parasites in C. albifrons in wildlife refuges (n = 11) and in a free-ranging group near a human village (n = 15) in the Ecuadorian Amazon. In the 78 samples collected (median of 3 samples per animal), we identified a total of 6 genera of gastrointestinal parasites, representing protozoa, nematodes, acantocephalan and cestodes. We observed a high prevalence (84%) across the 26 individuals, with the most prevalent parasite being Strongyloides sp. (76.9%), followed by Hymenolepis sp. (38.5%) and Prosthenorchis elegans (11.5%). We found Entamoeba histolytica/dispar/moskovskii/nuttalli and Capillaria sp. in only a minority of the animals (3.8%). In addition, we observed unidentified strongyles in approximately one-third of the animals (34.6%). We found a total of 6 parasite genera for the adult age group, which showed higher parasite richness than the subadult age group (5) and the juvenile age group (3). Faecal egg/cyst counts were not significantly different between captive and free-ranging individuals or between sexes or age groups. The free-ranging group had a higher prevalence than the captive group; however, this difference was not significant. The only genus common to captive and free-ranging individuals was Strongyloides sp. The high prevalence of gastrointestinal parasites and the presence of Strongyloides in both populations support results from previous studies in Cebus species. This high prevalence could be related to the high degree of humidity in the region. For the free-ranging group, additional studies are required to gain insights into the differences in parasite prevalence and intensity between age and sex groups. Additionally, our study demonstrated that a serial sampling of each individual increases the test sensitivity. [less ▲]

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See detailÁrea de vida, dieta, preferencia de estrato vertical y uso del tiempo de Bradypus variegatus, liberados en la Estación Científica Agroecológica Fátima
Carrillo-Bilbao, Gabriel; Curicama, Víctor; Ruíz, Roberto et al

in Bionatura (2016), 1(3),

The main threats for Bradypus variegatus are: hunt, illegal traffic and habitat fragmentation. The goal of this study was to determine basic ecology aspects such as: the home range, preference of vertical ... [more ▼]

The main threats for Bradypus variegatus are: hunt, illegal traffic and habitat fragmentation. The goal of this study was to determine basic ecology aspects such as: the home range, preference of vertical strata, time budget and diet. At the Agroecological Scientific Station Fatima (ECAF), located in the province of Pastaza, Ecuador, two females were released and monitored by telemetry system over a period of time of seven months. The following data was taken: Behavior, plant species of their diet and range of daily displacement. Released females maintain a home range of 8.5 ha (female H-001) and 3.7 ha (female H-002) with an average of 6.1 ha according to the method of Minimum Convex Polygon. According to the method of Kernel, home range is 13.2 ha and 5.8 has with an average of 9.5 ha. Arboreal vertical strata preferred by two individuals, is the canopy (H-001 = 56.7% and H-002 = 53.5%). We identified a total of 14 plant species as part of their diet, and the leafs were the only resource observed to be eaten. The behavior with the highest percentage registered was rest (H-001 = 94.7% and H-002 = 92,42%). This is the first report of this kind of data for Ecuador. [less ▲]

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See detailPrevalence and Richness of Gastrointestinal Parasites of Capuchins (Cebus albifrons) Interacting with humans in the Ecuadorian Amazon
Ramirez, William; Martin, Sarah ULiege; Carrillo Bilbao, Gabriel Alberto et al

Poster (2013, September 10)

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See detailPrimate Behaviour and Parasite Transmission in the Ecuadorian Amazon
Martin, Sarah ULiege; Carrillo Bilbao, Gabriel Alberto; Bernstein, Sophie et al

in Folia Primatologica : International Journal of Primatology = Internationale Zeitschrift für Primatologie = Journal international de Primatologie (2013, August 10), 84(3-5), 135-346

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See detailNUEVO REGISTRO DE DISTRIBUCIÓN DE Atelopus spumarius Cope, 1871 (ANURA: BUFONIDAE) PARA ECUADOR
Carrillo-Bilbao, Gabriel; Martin, Sarah ULiege

in LATIN AMERICAN JOURNAL OF CONSERVATION (2013), 3(2), 48-50

The Atelopus spumarius species, also known as Amazonian Arlequin was registered in the equatorial amazon. Through several censuses carried out in February and August 2011, two records of the Atelopus ... [more ▼]

The Atelopus spumarius species, also known as Amazonian Arlequin was registered in the equatorial amazon. Through several censuses carried out in February and August 2011, two records of the Atelopus spumarius species were found at the Fatima Agroecological Research Station (ECAF), in the Pastaza Province. These records allow us to widen the range of distribution from 600 m.a.s.l to 950 m.a.s.l. and confirm the presence of this species, which according to data provided on the International Union for Conservation of Nature (IUCN) Red List has not being seen in Ecuador since 1994. Thanks to the records, effective conservation plans can be drawn for this species. Furthermore, it also demonstrates the high value of ECAF conservation efforts. [less ▲]

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See detailParásitos en primates de la Amazonía Ecuatoriana: una herramienta para la salud pública y la conservación
Martin, Sarah ULiege; Carrillo-Bilbao, Gabriel Alberto; Celi, Maritza et al

Conference (2012, June 22)

Los primates son reservorios de patógenos humanos ya sea que estén en libertad o en cautiverio. Si identificamos los parásitos y las enfermedades que estos ocasionan en primates, sería una herramienta ... [more ▼]

Los primates son reservorios de patógenos humanos ya sea que estén en libertad o en cautiverio. Si identificamos los parásitos y las enfermedades que estos ocasionan en primates, sería una herramienta para su conservación y un aporte significativo para la salud pública. Colectamos e identificamos los parásitos gastrointestinales de 10 especies de primates de la Amazonía ecuatoriana. Se utilizo la técnica de flotación con solución de azúcar sobre saturada (d≈1.28 - 1.33) y la técnica de Ritchie. Las muestras fueron analizadas según factores extrínsecos e intrínsecos de los primates. Los valores generales de prevalencia para protozoarios y helmintos fueron de 17.6% y 55.4% respectivamente. Infecciones con un solo parásito fueron observadas en 46% de las muestras e infecciones con dos o más parásitos fueron observadas en tan solo 17.6% de las muestras. Las hembras tuvieron mayor prevalencia (93.33%) que los machos (68.75%). Más de la mitad de los parásitos encontrados en este estudio (Necator/Ancylostoma, Capillaria sp., Strongylus sp., Entamoeba histolytica, Hymenolepis sp., Oesophagostomum sp.) son una amenaza potencial de transmisión zoonótica. Lagothrix lagotricha tiene la mayor diversidad de parásitos (7) en comparación con las otras especies de primates estudiadas. Este estudio muestra una diversidad de parásitos de importancia zoonótica, lo cual demuestra el interés que deber presentarse tanto para el manejo de fauna silvestre como para programas de salud pública. [less ▲]

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See detailIdentificación de parásitos intestinales de primates en dos centros de rescate en la amazonía ecuatoriana
Martin, Sarah ULiege; Carrillo Bilbao, Gabriel Alberto; Celi, Maritza et al

in Tirira, Diego (Ed.) Memorias XXXv Jornadas Nacional de Biología, Quito, 17-19 Noviembre 2011, I Congreso Ecuatoriano de Mastozoología (2011, November 17)

Los primates son reservorios de los patógenos humanos. Si identificamos las enfermedades parasitarias de los primates, puede ser favorable para su conservación. Examinamos las muestras fecales para ... [more ▼]

Los primates son reservorios de los patógenos humanos. Si identificamos las enfermedades parasitarias de los primates, puede ser favorable para su conservación. Examinamos las muestras fecales para identificar los parásitos intestinales que se encuentran en las especies de primates en dos centros de rescate en la amazonía ecuatoriana. Estas muestras se analizaron según varios factores como tamaño del grupo, el sexo y la edad. La prevalencia general de protozoarios y de helmintos que se encontraron en las muestras fue de 17.6 % y de 55.4 % respectivamente. Más de la mitad de los parásitos encontrados en este estudio (Necator/Ancylostoma (6.8%), Capillaria sp. (4%), Strongylus sp. (41.9%), Entamoeba histolytica (13.5%)) son una amenaza potencial de transmisión zoonótica. Estos resultados preliminares muestran una diversidad importante de parásitos zoonóticos en los primates en cautiverio y resultados posteriores podrían demostrar la importancia de estos en la salud pública y la conservación de primates. [less ▲]

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See detailESTUDIO COMPORTAMENTAL DE UN GRUPO DE PRIMATES Lagothrix sp. É. GEOFFROY, 1812 (ATELIDAE, PRIMATES) EN SEMI CAUTIVERIO EN UN CENTRO DE RESCATE EN LA AMAZONÍA ECUATORIANA
Carrillo Bilbao, Gabriel Alberto; Martin, Sarah ULiege; Martinage, Alice et al

in Tirira, Diego (Ed.) Memorias XXXv Jornadas Nacional de Biología, Quito, 17-19 Noviembre 2011, I Congreso Ecuatoriano de Mastozoología (2011, November 17)

El comportamiento de un grupo de Lagothrix sp. en semicautiverio fue estudiado durante los meses de Febrero a Junio 2011. El grupo está conformado por siete hembras y cuatro machos. El proyecto Primates ... [more ▼]

El comportamiento de un grupo de Lagothrix sp. en semicautiverio fue estudiado durante los meses de Febrero a Junio 2011. El grupo está conformado por siete hembras y cuatro machos. El proyecto Primates Ecuador mantiene un protocolo en el cual se estudió el comportamiento por medio de barridos y de focales desde las 8:00 hasta las 17:00. Adicionalmente se estudió el uso del estrato. En cuanto al uso de tiempo, se observó dos picos altos del comportamiento de alimentación entre las 8-8h59 y entre las 13h-13h59 que corresponden con la alimentación artificial que se les proporciona en el centro de rescate. En cuanto al uso del estrato vertical, este grupo no utiliza con frecuencia los estratos superiores a los cinco metros. Los individuos de este grupo pasan la mayor parte del tiempo en el suelo, ya sea para alimentarse o para el reposo. Esto nos indica que todavía están lejos para rehabilitarse ya que en el medio natural pasan la mayor parte del tiempo en los estratos superiores de los árboles en buscan de alimento. [less ▲]

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See detailPrimates ecuatorianos en peligro por las actividades antropogénicas
Carrillo Bilbao, Gabriel Alberto; Martin, Sarah ULiege; Huynen, Marie-Claude ULiege

in Vanden Berghe, Kristine (Ed.) Amazonía: Civilisations et barbaries (2009)

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See detailA Critical Study of Primate Reintroduction Projects in the Mesoamerican Region.
Martin, Sarah ULiege; Huynen, Marie-Claude ULiege; Libois, Roland ULiege

Poster (2008)

Very little is known about primate reintroduction projects in Mesoamerica. The aim of this study was to focus on existing projects concerning primate re-introductions, conservation-introduction ... [more ▼]

Very little is known about primate reintroduction projects in Mesoamerica. The aim of this study was to focus on existing projects concerning primate re-introductions, conservation-introduction, translocation, as well as on reinforcement-supplementation of parallel initiatives. In order to create a database, a survey was sent to a panel of scientists in Mexico, Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica and Panama, and we visited five projects in Costa Rica from March to August 2006. A total of 19 projects were found: Costa Rica hosted the higher number (7) while Salvador and Nicaragua did not host any. Fourteen out of those 19 projects concerned confiscated animals. Six of the 7 Costa Rican projects used confiscated primates; the other ones came from wild populations or were born in captivity. Alouatta palliata and Ateles geoffroyi are the most common species subject to reintroduction effort in the Mesoamerican region. A wide range of factors seem to influence reintroduction success such as: the project’s budget, the release site, the mode of transportation, the caging setting, the support from local communities, the presence of environmental education programs, but also the age of primates, etc. Each project seems to work as a completely separated entity, with its own definition of reintroduction success and its own policy. There’s no communication between the projects, no matter if they are based in the same country or work on the same species. A reintroduction guideline for this region should be established as well as a regional network coordinating the information. [less ▲]

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