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CONICET Digital
Article . 2016
License: CC BY NC SA
Data sources: CONICET Digital
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Desempeño de un collar GPS en el seguimiento a un oso andino (Tremarctos ornatus) en los Andes colombianos

Authors: Rodríguez, Daniel; Reyes Amaya, Nicolás Rafael; Reyes, Adriana; Restrepo, Héctor; Casas, Yesid; Salgado, Oswaldo; Rodríguez, Javier; +1 Authors

Desempeño de un collar GPS en el seguimiento a un oso andino (Tremarctos ornatus) en los Andes colombianos

Abstract

Objetivo: Describir por primera vez el desempeño de un collar de telemetría GPS en el seguimiento a un oso andino silvestre en los ecosistemas montañosos de los Andes colombianos (Cundinamarca, Colombia), como un aporte al conocimiento de la efectividad de esta técnica en la especie. Métodos: Se relacionó el número de posiciones GPS obtenidas y esperadas, el número de satélites enlazados, tipo de posición (2D, 3D), valores de dilusión horizontal de precisión, tiempo para la primera posición , estado de actividad-inactividad del oso y horas de día (luz: 05:00-18:00) o noche (oscuridad: 01:00-04:00 y 19:00-24:00) en que fueron obtenidos estos datos. Resultados: Existió diferencia significativa en la actividad del oso marcado, mostrándolo activo durante el día e inactivo en la noche (M-Wt, p=4.456E-38). No existió diferencia en el éxito de posiciones entre día-noche (t test, p=0.50) o entre actividad-inactividad (t test, p=0.73), sin embargo la actividad se correlacionó positivamente con el número de satélites (p=3.781E-5, r=0.22) y negativamente con los valores HDOP (p=1.583E-11, r=-0.35) y TTFF (p=8.911E-12, r=-0.36). Una vez en funcionamiento, el collar asumió una programación diaria de toma de posiciones distinta a la establecida, y dejó de funcionar súbitamente a los 41 días de seguimiento, permitiendo un éxito de posiciones de 5.3% respecto a lo esperado para 12 meses. Conclusiones: Durante el funcionamiento del dispositivo los patrones de actividad de esta especie y las coberturas boscosas/rocosas asociadas con su descanso nocturno, no afectaron negativamente el éxito de toma de posiciones, pero sí la calidad de las mismas. El daño prematuro del collar y el cambio arbitrario que asumió sobre la programación diaria de toma de posiciones, indican que el dispositivo evaluado no mostró un buen desempeño para el seguimiento del oso marcado.

Describe for the first time the performance of a GPS telemetry collar during the tracking of a wild spectacled bear in the mountainous ecosystems of Colombian Andes (Cundinamarca, Colombia), as a contribution to the knowledge of the effectiveness of this technique on the species. Methodology: The number of GPS positions expected and obtained were associated with the number of linked satellites, type of position (2D, 3D), values of horizontal dilution of precision, time to first fix, activity-inactivity state of the bear and hours of the day (light: 05:00-18:00) or night (dark: 01:00-04:00 and 19:00-24:00) in which these data were obtained. Results: There was significant difference in activity levels of the marked bear, showing it active during the day and inactive at night (M-Wt, p=4.456E-38). There was no difference in the success of positions between day-night (t test, p=0.50) or activity-inactivity (t test, p=0.73), nevertheless the activity was positively correlated with the number of satellites (p=3.781E-5, r=0.22) and negatively correlated with HDOP (p=1.583E-11, r=-0.35) and TTFF (p=8.911E-12, r=-0.36). Once operational the collar assumed a daily schedule of taking positions different from the established, and suddenly stopped working at 41 days of the tracking, allowing a success of positions of 5.3% compared to expectations for 12 months.

Fil: Reyes Amaya, Nicolás Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Fundación Wii; Colombia

Fil: Casas, Yesid. Corporación Autónoma Regional del Guavio; Colombia

Fil: Salgado, Oswaldo. Nexen Petroleum Colombia; Colombia

Fil: Rodríguez, Daniel. Fundación Wii; Colombia

Fil: Rodríguez, Javier. Fundación Wii; Colombia

Fil: Restrepo, Héctor. Fundación Wii; Colombia

Fil: Gómez, Humberto. Fundación Wii; Colombia

Fil: Reyes, Adriana. Fundación Wii; Colombia

Country
Argentina
Keywords

COLLAR ATS, https://purl.org/becyt/ford/1.6, ANDES, OSO DE ANTEOJOS, COLOMBIA, https://purl.org/becyt/ford/1, OSO ANDINO, TELEMETRIA SATELITAL

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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