Birds / 13.09.2010

[caption id="attachment_1341" align="alignleft" width="300" caption="Riverside Wren nest by Cheryl Chip & Jim Tamarack"][/caption] For those of you who may remember, I posted a feature on the Riverside Wren (Thryothorus semibadius) back in April.  It was one of my first postings for the then new Friends of the Osa's blog The Osa Chronicles and a few of you commented on both the nature history and photography by Gianfranco Gomez. One of the species ecological behaviors I wrote about was of reproduction and nesting.  When I spoke about the nest of...

Science and Research, Sea Turtles / 07.09.2010

Last month I shared with you the total data for in situ nests, nest predation and false crawls for the month of July, and mentioned that these data were not adjusted for sampling effort. By sampling effort, I mean the amount of time and / or distance that was invested on each beach to get the data. For example, we monitor 2 km of Piro beach and 4.5 km of Pejeperro beach.  So, it isn’t the same to walk Piro beach and find two turtles as it is to walk...

Birds / 05.09.2010

[caption id="attachment_1239" align="alignleft" width="240"] White-whiskered Puffbird by Gianfranco Gomez[/caption] Not only does the White-whiskered Puffbird (Malacoptila panamensis) rank pretty high on the cuteness scale, it is also an interesting species from an ecological perspective.  Puffbirds are most closely related to jacamars, toucans and woodpeckers.  They are primarily insect and arthropod eaters and are considered to be flycatching birds along with tyrant flycatchers, and nunbirds.  Even though they eat spiders, frogs and lizards taken from the ground they are known for sitting perfectly still in the forest understory until a...

Uncategorized / 04.09.2010

El mes pasado compartí con ustedes los datos totales para nidos in situ, nidos depredados  y salidas falsas para el mes de Julio, y mencioné que estos datos eran sin ajustar por el esfuerzo de muestreo. Por esfuerzo de muestreo me refiero a la cantidad de tiempo y/o distancia que se ha invertido en cada playa para obtener los datos.  Por ejemplo, en Piro nosotros monitoreamos 2 km de playa y en Pejeperro, monitoreamos 4.5 km. No es lo mismo recorrer Piro una vez y encontrar 2 tortugas,...