Monthly Archives: January 2010
Geology of Arenal
Oscar explains some of the geology and recent history of the Arenal Volcano.
Tropical Night Lizard
Xantusiidae – Lepidophyma flavimaculatum
Norops polylepis
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This little anole seems to the the most common around the Proyecto Campanario, on the Osa Peninsula. Their patterning and colors vary on their body, but the dew-lap is mostly orange.
Rosaete-spoon bill
Maybe not the greatest photograph, but still pretty cool.
Diasporus defends territory
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My best guess for these dwellers is Diasporus diastema in the family Eleutherodactylidae. It was formally Eleutherodactylus diastema in Leptodactylidae… so maybe it’s a new family sighting for me!
Norops capito
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A new anole for me… but Oscar caught it.
Agitated ants
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In Campanario, these ants patrol much of the forest. When agitated, they move into a defensive position with their abdomen below them, pointed as a gun. I know some ant do it, so I suspect they are capable of spraying formic acid at offenders.
Los Nimbulos
Mike and I are currently in Palo Verde, collecting data from my enclosures. We’ll be head to Osa Peninsula on 22 January for about three weeks… without Internet access.
Working in San Ramon
Bernald, Marc, Laura, Alexa and Mauri are pictured below working on macroinvertebrate community diversity in headwater streams at San Ramon. Bernald is an invited assistant from UCR specializing in Gerridae taxonomy. In some photographs, a shade cloth used to exclude leaf litter from a stream can be seen hovering above the stream.
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