I studied activity patterns, microhabitat use and thermal ecology of a small-wild population of the Loma’s lizard, Microlophus tigris in Parque Las Leyendas Zoo, from April to October of 2006. Microlophus tigris individuals were active in a variety of microhabitats, from bushes and vegetation debris to prehispanic bricks (adobes) and litter, during the hottest hour of the day. Mean body temperature (29,4 ºC) was similar to body temperature observed in a natural population from Lomas de Lachay, although in Parque de Las Leyendas, substrate temperature was higher than air temperature, probably related to thermal properties of materials used as microhabitats and to seasonal differences. We encouraged the Zoo to takes conservation measures to protect this endangered wild population of lizard in Lima city.

Some basics aspects on the ecology of the nocturnal gecko Phyllodactylus reissi from Parque Nacional Cerros de Amotape (Tumbes, Peru) are described. This species used rock boulders (57,4%) and trees (31,9%) as microhabitats primarily, exhibiting a nocturnal activity pattern, with a peak between 2100-2200 hours, remaining active until midnight. Body temperature (mean 24,4 ºC) was correlated with both air and substrate temperature, with the last variable affecting in higher degree (47%) the body temperature of this species. The slightly high body temperature of Phyllodactylus reissi, compared to other Phyllodactylus geckos, could be related to nocturnal microhabitat use and diurnal retreat site selection. More studies on lizard ecology from this endangered ecosystem are needed.

I studied activity patterns, microhabitat use and thermal ecology of a small-wild population of the Loma’s lizard, Microlophus tigris in Parque Las Leyendas Zoo, from April to October of 2006. Microlophus tigris individuals were active in a variety of microhabitats, from bushes and vegetation debris to prehispanic bricks (adobes) and litter, during the hottest hour of the day. Mean body temperature (29,4 ºC) was similar to body temperature observed in a natural population from Lomas de Lachay, although in Parque de Las Leyendas, substrate temperature was higher than air temperature, probably related to thermal properties of materials used as microhabitats and to seasonal differences. We encouraged the Zoo to takes conservation measures to protect this endangered wild population of lizard in Lima city.

Some basics aspects on the ecology of the nocturnal gecko Phyllodactylus reissi from Parque Nacional Cerros de Amotape (Tumbes, Peru) are described. This species used rock boulders (57,4%) and trees (31,9%) as microhabitats primarily, exhibiting a nocturnal activity pattern, with a peak between 2100-2200 hours, remaining active until midnight. Body temperature (mean 24,4 ºC) was correlated with both air and substrate temperature, with the last variable affecting in higher degree (47%) the body temperature of this species. The slightly high body temperature of Phyllodactylus reissi, compared to other Phyllodactylus geckos, could be related to nocturnal microhabitat use and diurnal retreat site selection. More studies on lizard ecology from this endangered ecosystem are needed.

Se han identificado tres dimensiones de importancia del nicho ecológico para los saurios: espacial, temporal y trófico, las cuales son explotadas de manera diferencial para minimizar o evitar la competencia. Entre setiembre y diciembre del 2006, se evaluaron estas tres dimensiones en dos especies de saurios, Ameiva septemlineata y A. edracantha para determinar posibles diferencias en el nicho ecológico. En el Parque Nacional Cerros de Amotape (Tumbes, Perú), Ameiva septemlineata y A. edracantha presentaron una alta sobreposición en el nicho espacial (Фjk = 0,81) y temporal (Фjk = 0,88) y una sobreposición media en el nicho trófico (Фjk = 0,52). Ambas especies presentaron patrones de actividad (08:00-16:00 h) y temperaturas corporales similares (Ameiva septemlineata: 35,9º C y A. edracantha: 36,6º C), aunque experimentaron ambientales termales distintos, posiblemente relaciona...