Publicado

2022-02-23

PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA

Presencia de un primate endémico y amenazado en un paisaje cambiante en los Llanos Orientales de Colombia

DOI:

https://doi.org/10.15446/abc.v27n2.91023

Palabras clave:

Environmental management, Landscape ecology, Orinoquia, Plecturocebus ornatus, Primates (en)
Ecología del paisaje, Manejo ambiental, Orinoquia, Plecturocebus ornatus, Primates (es)

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Plecturocebus ornatus is an endemic vulnerable species due to its population decline and its restricted range within the Eastern Plains of Colombia. This region is affected by deforestation as a result of legal and illegal economic activities. The aim of this work was to analyze the presence and abundance of P. ornatus during a period of urban and livestock production expansion (1986-2019) in Villavicencio, Colombia. This municipality is the most affected by land-use changes associated with regional economic development and represents 3.4 % of P. ornatus distribution’s area. The analysis was performed using satellite images Landsat 4 and 8, with V-Late in ArcGIS 10.5 to describe landscape structure, and P. ornatus occurrence records, obtained through field observations and the Global Biological Information Facility. Densities were calculated for each fragment based on total individuals observed by transect. A generalized lineal model was used to evaluate the effects of patch-scale, landscape-scale and other variables on P. ornatus abundance. By 1986 the rural and peri-urban areas of Villavicencio were already a transformed landscape. During the analyzed period, landscape was predominantly made up of disconnected linear fragments with a secondary humid forest cover. Around 82.1 % of the fragments with P. ornatus records are threatened by urbanization and only 50 % are in protected areas. Densities varied from 0.00 to 7.26 ind/ha (0.00–726.82 ind/km2). Abundance of P. ornatus was highly influenced by landscape-scale variables related with landscape connectivity, as well as fragment area and number of other primate species. Therefore, the implementation of restoration measures that increase landscape connectivity and habitat availability is proposed, as well as more control over environmental land-use planning, to contribute to the conservation of P. ornatus in urban areas.

Plecturocebus ornatus es una especie endémica vulnerable debido a la disminución de su población y distribución restringida al piedemonte de los Llanos Orientales Colombianos. Esta región es afectada por la deforestación resultante de actividades económicas legales e ilegales. El objetivo de este trabajo fue analizar la presencia y abundancia de P. ornatus durante un período de expansión urbana y ganadera (1986-2019) en Villavicencio, Colombia. Este municipio es el más afectado por cambios de uso del suelo asociados al desarrollo económico regional y representa el 3,4 % del área de distribución de P. ornatus. El análisis se realizó a partir de imágenes satelitales Landsat 4 y 8, con V-Late de ArcGIS 10.5, para describir la estructura del paisaje, y registros de P. ornatus obtenidos en observaciones de campo y del Global Biological Information Facility. Se calcularon densidades de cada fragmento basadas en el número total de individuos observados. Un modelo lineal generalizado fue usado para evaluar el efecto de variables a la escala del parche, paisaje y otros sobre la abundancia de P. ornatus. Para 1986 los sectores rurales y periurbanos de Villavicencio ya eran un paisaje transformado. Durante el período analizado, el paisaje estuvo predominantemente conformado por fragmentos lineales desconectados con cobertura de bosque húmedo secundario. Alrededor del 82,1 % de los fragmentos con registros de P. ornatus están amenazados por la urbanización y solo el 50 % se encuentran en áreas protegidas. Las densidades variaron de 0,00 to 7,26 ind/ha (0,00–726,82 ind/km2). La abundancia de P. ornatus fue altamente influenciada por variables a la escala de paisaje relacionadas con la conectividad del paisaje, así como el área del fragmento y la presencia de otras especies de primates. Por lo tanto, la implementación de medidas de restauración que incrementen la conectividad del paisaje y disponibilidad de hábitat, así como un mayor control sobre el ordenamiento territorial ambiental, pueden contribuir a la conservación de P. ornatus en áreas urbanas.

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Cómo citar

APA

Ortiz-Moreno, M. L., Rojas, N. ., Aguilar, L., Lopes, L. E., A. Ferreira, P., Carretero-Pinzón, X. y R. Pires, J. S. (2021). PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA . Acta Biológica Colombiana, 27(2), 269–281. https://doi.org/10.15446/abc.v27n2.91023

ACM

[1]
Ortiz-Moreno, M.L., Rojas, N. , Aguilar, L., Lopes, L.E., A. Ferreira, P., Carretero-Pinzón, X. y R. Pires, J.S. 2021. PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA . Acta Biológica Colombiana. 27, 2 (dic. 2021), 269–281. DOI:https://doi.org/10.15446/abc.v27n2.91023.

ACS

(1)
Ortiz-Moreno, M. L.; Rojas, N. .; Aguilar, L.; Lopes, L. E.; A. Ferreira, P.; Carretero-Pinzón, X.; R. Pires, J. S. PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA . Acta biol. Colomb. 2021, 27, 269-281.

ABNT

ORTIZ-MORENO, M. L.; ROJAS, N. .; AGUILAR, L.; LOPES, L. E.; A. FERREIRA, P.; CARRETERO-PINZÓN, X.; R. PIRES, J. S. PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA . Acta Biológica Colombiana, [S. l.], v. 27, n. 2, p. 269–281, 2021. DOI: 10.15446/abc.v27n2.91023. Disponível em: https://revistas.unal.edu.co/index.php/actabiol/article/view/91023. Acesso em: 28 ene. 2025.

Chicago

Ortiz-Moreno, Martha Lucia, Nathaly Rojas, Lina Aguilar, Luciano Elsinor Lopes, Patricia A. Ferreira, Xyomara Carretero-Pinzón, y José Salatiel R. Pires. 2021. «PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA ». Acta Biológica Colombiana 27 (2):269-81. https://doi.org/10.15446/abc.v27n2.91023.

Harvard

Ortiz-Moreno, M. L., Rojas, N. ., Aguilar, L., Lopes, L. E., A. Ferreira, P., Carretero-Pinzón, X. y R. Pires, J. S. (2021) «PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA », Acta Biológica Colombiana, 27(2), pp. 269–281. doi: 10.15446/abc.v27n2.91023.

IEEE

[1]
M. L. Ortiz-Moreno, «PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA », Acta biol. Colomb., vol. 27, n.º 2, pp. 269–281, dic. 2021.

MLA

Ortiz-Moreno, M. L., N. . Rojas, L. Aguilar, L. E. Lopes, P. A. Ferreira, X. Carretero-Pinzón, y J. S. R. Pires. «PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA ». Acta Biológica Colombiana, vol. 27, n.º 2, diciembre de 2021, pp. 269-81, doi:10.15446/abc.v27n2.91023.

Turabian

Ortiz-Moreno, Martha Lucia, Nathaly Rojas, Lina Aguilar, Luciano Elsinor Lopes, Patricia A. Ferreira, Xyomara Carretero-Pinzón, y José Salatiel R. Pires. «PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA ». Acta Biológica Colombiana 27, no. 2 (diciembre 15, 2021): 269–281. Accedido enero 28, 2025. https://revistas.unal.edu.co/index.php/actabiol/article/view/91023.

Vancouver

1.
Ortiz-Moreno ML, Rojas N, Aguilar L, Lopes LE, A. Ferreira P, Carretero-Pinzón X, R. Pires JS. PRESENCE OF AN ENDANGERED ENDEMIC PRIMATE IN AN EVER-CHANGING LANDSCAPE IN THE EASTERN PLAINS OF COLOMBIA . Acta biol. Colomb. [Internet]. 15 de diciembre de 2021 [citado 28 de enero de 2025];27(2):269-81. Disponible en: https://revistas.unal.edu.co/index.php/actabiol/article/view/91023

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