Publicado

2024-09-03

POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS

Dinámica Poblacional del Lagarto Riama striata (Squamata: Gymnophthalmidae) en un área urbana de las montañas colombianas

DOI:

https://doi.org/10.15446/abc.v29n3.112152

Palabras clave:

Urban ecology, Human disturbance, Artificial refuges, Population ecology, Fast-Slow continuum (en)
Continuo rápido-lento, Disturbio humano, Ecología de poblaciones, Ecología urbana, Refugios artificiales (es)

Autores/as

Urbanization causes transformations in wildlife habitat, provoking alterations in the population dynamics which results in declines and local extinctions. However, some studies in Andean gymnophthalmid lizards highlight the occupation of highly transformed habitats, suggesting a possible urban tolerance in some species. Here we show a case study using capture-mark-recapture sampling on two populations of the endemic Colombian lizard Riama striata, each facing different anthropic pressures. Despite urbanization, Riama striata maintains stable population growth and diverse demographic strategies. Populations differed in survival rates, rate transition from juvenile to adult, and population sizes and densities. The most important size class and demographic processes contributing to λ were adults, and stasis and growth, respectively. Also, in relative terms, stasis was larger than growth in one population, while fecundity was more important to λ in the other population. Our results demonstrate that this species can maintain small but stable populations in urban environments with the presence of artificial refuges. Furthermore, we highlight the importance of grasslands and shelter microhabitats for the population viability of the lizard R. striata, and we suggest conducting more studies on other tropical Andean lizards to assess the impacts of human disturbance in urban lizard species.

La urbanización causa transformaciones en el hábitat de la fauna silvestre que generan alteraciones en la dinámica poblacional, haciéndolas más propensas a declives y extinciones locales. Sin embargo, algunos estudios de lagartijas andinas de la familia Gymnophthalmidae resaltan la capacidad de estas especies para ocupar hábitats altamente transformados, sugiriendo una posible tolerancia a hábitats urbanos. Presentamos un estudio de caso usando el método de captura-marca-recaptura en dos poblaciones de la lagartija Riama striata sometidas a diferentes presiones antrópicas. Aunque ambas poblaciones presentaron un crecimiento poblacional estable, mostraron estrategias demográficas diferentes. Las poblaciones difirieron en las tasas de supervivencia, la tasa de transición de juveniles a adultos, y los tamaños y densidades poblacionales. La clase de tamaño más importante y los procesos demográficos que más contribuyeron a λ fueron los adultos, y la permanencia y el crecimiento, respectivamente. Además, en términos relativos, la permanencia fue más importante para λ en una población, y el crecimiento y la fecundidad más importantes para λ en la otra población. Nuestros resultados demuestran que esta especie es capaz de mantener poblaciones pequeñas pero estables, y establecerse con éxito en entornos urbanos donde existan refugios artificiales. Adicionalmente, resaltamos la importancia de los pastizales y microhábitats de refugio para la viabilidad poblacional de R. striata, y sugerimos realizar más estudios en otros lagartos andinos tropicales para evaluar los impactos del disturbio humano en especies de lagartijas urbanas.

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Cómo citar

APA

Méndez-Galeano, M. Á., Moreno-Arias, R. Á. y Pinto-Erazo, M. A. (2024). POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS. Acta Biológica Colombiana, 29(3). https://doi.org/10.15446/abc.v29n3.112152

ACM

[1]
Méndez-Galeano, M. Á., Moreno-Arias, R. Á. y Pinto-Erazo, M.A. 2024. POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS. Acta Biológica Colombiana. 29, 3 (ago. 2024). DOI:https://doi.org/10.15446/abc.v29n3.112152.

ACS

(1)
Méndez-Galeano, M. Á.; Moreno-Arias, R. Á.; Pinto-Erazo, M. A. POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS. Acta biol. Colomb. 2024, 29.

ABNT

MÉNDEZ-GALEANO, M. Á.; MORENO-ARIAS, R. Á.; PINTO-ERAZO, M. A. POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS. Acta Biológica Colombiana, [S. l.], v. 29, n. 3, 2024. DOI: 10.15446/abc.v29n3.112152. Disponível em: https://revistas.unal.edu.co/index.php/actabiol/article/view/112152. Acesso em: 21 ene. 2025.

Chicago

Méndez-Galeano, Miguel Á., Rafael Á. Moreno-Arias, y María A. Pinto-Erazo. 2024. «POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS». Acta Biológica Colombiana 29 (3). https://doi.org/10.15446/abc.v29n3.112152.

Harvard

Méndez-Galeano, M. Á., Moreno-Arias, R. Á. y Pinto-Erazo, M. A. (2024) «POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS», Acta Biológica Colombiana, 29(3). doi: 10.15446/abc.v29n3.112152.

IEEE

[1]
M. Á. Méndez-Galeano, R. Á. Moreno-Arias, y M. A. Pinto-Erazo, «POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS», Acta biol. Colomb., vol. 29, n.º 3, ago. 2024.

MLA

Méndez-Galeano, M. Á., R. Á. Moreno-Arias, y M. A. Pinto-Erazo. «POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS». Acta Biológica Colombiana, vol. 29, n.º 3, agosto de 2024, doi:10.15446/abc.v29n3.112152.

Turabian

Méndez-Galeano, Miguel Á., Rafael Á. Moreno-Arias, y María A. Pinto-Erazo. «POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS». Acta Biológica Colombiana 29, no. 3 (agosto 2, 2024). Accedido enero 21, 2025. https://revistas.unal.edu.co/index.php/actabiol/article/view/112152.

Vancouver

1.
Méndez-Galeano M Á., Moreno-Arias R Á., Pinto-Erazo MA. POPULATION DYNAMICS OF THE LIZARD Riama striata (SQUAMATA: GYMNOPHTHALMIDAE) IN AN URBAN AREA OF THE COLOMBIAN HIGHLANDS. Acta biol. Colomb. [Internet]. 2 de agosto de 2024 [citado 21 de enero de 2025];29(3). Disponible en: https://revistas.unal.edu.co/index.php/actabiol/article/view/112152

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