Altitude in the tropics

Dear Students,
On Thursday the 6th of August we visited Catarina, a "Look-out post" on the northwest edge of the Laguna de Apoyo. The site registered 556 meters (or more than 1820 feet) above sea level on my GPS, and the temperature was 24 degrees Celsius (75F) at 5PM when we began to make our way down the mountain. Here I write for you a record of the change in temperature as we descend from Catarina. Our overall GPS position doesn't change very much (clustered around our home city of Granada) but what did change was our altitude above sea level. At 5:30PM we found ourselves at 542 meters (1,778 feet) above sea level and the temperature had begun to climb to 26 degrees Celsius (79F). Ten minutes later, 5:40PM, we dropped to 347 meters (1,138 feet) above sea level and the temperature was at 27.3 degrees Celsius (81F). Five minutes later, 5:45PM, we continued down to 289 meters (950 feet) above sea level and the temperature remained at approximately 27 degrees Celsius (80F). Fifteen minutes later we reached our home in Granada, located 160 meters (525 feet) above sea level, and the temperature peaked at 29 degrees Celsius (84F). Such temperature differences by altitude have profound effects on what plant and animal species can live at those altitudes. I'm curious about what you all have noticed about the plants and animals that live in the different habitats we visited and what time of the day would you go out to be able to observe their behavior?