Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

Selección del micro hábitat acuático por Norops oxylophus (Polychrotidae) en San Luis, Costa Rica



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Publication Date

May 2007


Microhabitat studies of anoline lizards have traditionally measured small-scale characteristics, such as perch height and perch diameter. Riparian anoles, however, may inhabit a more complex environment, since they are in direct contact with rivers or streams; thus, a broader spectrum of variables, particularly those related to river qualities, may be necessary to garner a greater understanding of microhabitat choice in these lizards. In this study, I examine microhabitat selection by Norops oxylophus in relation to both traditional variables and three river variables in the San Luis Valley, Costa Rica. Results show that male lizards prefer higher perches (mean = 0.900 ± 0.301 m, N = 12) than do females (mean = 0.192 ± 0.152 m, N = 13) or juveniles (mean = 0.338 ± 0.337 m, N = 31), while females prefer wider perches (mean = 0.138 ± 0.067 m; N = 5) than do other lizards. Also, N. oxylophus in general seem to prefer riverside sites that are wider and deeper (meanwidth = 3.077 ± 1.375 m, meandepth = 0.183 ± 0.062 m, N = 56) than are unoccupied riverside sites (mean width = 1.852 ± 0.748 m, meandepth = 0.138 ± 0.137 m, N = 56). This study supports the hypothesis that factors related to rivers influence riparian anole microhabitat selection. Las investigaciones del micro hábitat en las lagartijas (Polychrotidae: Anolinae) usualmente se le miden las características como la altura de percha y el diámetro de percha. Las lagartijas acuáticas, sin embargo, pueden habitar en un ambiente más complejo porque ellas están en contacto directo con los ríos y quebradas; así que, un espectro mas ancho de las variables puede ser necesario para tener una mejor comprensión de la selección del micro hábitats en estas lagartijas. En esta investigación, yo examiné la selección del micro hábitat en Norops oxylophus en relación a variables típicas y algunas variables del río en el Valle de San Luis, Costa Rica.


Lizards--Behavior, Lagartijas--Comportamiento, Environmental impact analysis, Analisis del impacto ambiental, Anoles, Anolis, Costa Rica--Puntarenas--Monteverde Zone--San Luis, Costa Rica--Puntarenas--Zona de Monteverde--San Luis, CIEE Spring 2007, CIEE Primavera 2007


Student Affilliation: Department of Biological Sciences, Vanderbilt University Born Digital

Subject: topical

Lizards--Behavior; Lagartijas--Comportamiento; Environmental impact analysis; Analisis del impacto ambiental; Anoles; Anolis; CIEE Spring 2007; CIEE Primavera 2007

Subject: geographic

Costa Rica--Puntarenas--Monteverde Zone--San Luis; Costa Rica--Puntarenas--Zona de Monteverde--San Luis



Holding Location

Monteverde Institute MVI



Riparian microhabitat selection by Norops oxylophus (Polychrotidae) in San Luis, Costa Rica



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