Are Anolis aeneus active at night?

Recently here in Trinidad, West Indies, I came across an Anolis aeneus. I observed the individual at 1930 h; sun had set at 1810 h. It was perched vertically on a wall, roughly 1 m off the ground facing down – as if in a foraging position. There was a bright light shining over it. I’m curious as to whether this type of behavior has been noted before; are these anoles also known to be active at night?

5 thoughts on “Are Anolis aeneus active at night?

  1. Actually, many anoles are active around lights at night — the so-called “night-light niche.” In fact, on two occasions, in the British Virgin Islands and Dominica, snakes that usually are diurnally active were observed hunting anoles around night lights. So, the observation is not unusual, but always worth noting. Anecdotal observations alone are just that, but many anecdotal observations might reveal a pattern.

    Re night light use, see the following references:

    PERRY, G., & R.N. FISHER. 2006. Night lights and reptiles: Observed and potential effects, pp. 169–191. In: C. RICH & T. LONGCORE (eds.), Ecological Consequences of Artificial Night Lighting. Island Press Washington, D.C., USA.

    PERRY, G., B.W. BUCHANAN, R.N. FISHER, M. SALMON, & S.E. WISE. 2008. Effects of artificial night lighting on amphibians and reptiles in urban environments, pp. 239–256. In: J.C. MITCHELL, R.E. JUNG, & B. BARTHOLOMEW (eds.), Urban Herpetology. Herpetological Conservation, volume 3. Society for the Study of Amphibians and Reptiles, Salt Lake City, Utah, USA.

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