Science Diary: Caterpillars - Many Types: The Pulse of the Planet daily radio program offers free legal online mp3 downloads, exploring the world of sound in nature, culture and science, with audio adventures, world music, extraordinary sound portraits, science diaries, and nature ring-tones; an amazing sonic experience.



Airdate: Sep 22, 2008
Scientist: Lee Dyer Grant Gentry

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 ANIMALS ,Insects ,Rainforest ,caterpillars ,plants


Science Diary: Caterpillars - Many Types

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In Costa Rica's rainforest, the diversity of caterpillars rivals the diversity of the plants they consume.
Transcript:

music; ambience rain, rainforest

It's a spectacular place. If you like biology you have to come to a place like this.

One of the reasons youd come to the lowland rainforest of Costa Rica is to experience the incredibly diverse mix of plants and animals. Welcome to Pulse of the Planets Science Diaries, a glimpse of the world of science from the inside.

Every single day you'll see something new. So right now it's raining, which it does especially this time of year. The vegetation is almost impossible to describe, because it's so varied. It's really an assault on the senses.

Lee Dyer and a team of Earthwatch volunteers are in Costa Rica at the Tirimbina Rainforest Center to study some of the worlds most ubiquitous creatures caterpillars.

They're beautiful organisms. The diversity of forms and colors and types of caterpillars never ceases to amaze me. I see a new one every field season - at least one. There are right now about 170,000 described species of moths and butterflies, which the immature stages are called caterpillars. So theyre extremely diverse, and they interact with flies and wasps, which attack them. So, if you want to understand diversity, which really is one of the greatest challenges in science today is understanding what causes diversity and what are the consequences of our great loss of diversity that's occurring right now. So since caterpillars and the wasps and flies and the other organisms that they interact with, make up such a large portion of the diversity that's out there, they're an important organism to study. In terms of ecology, for most terrestrial ecosystems, they are the major thing out there that's eating plants.

Well hear more on Lee Dyers work with caterpillars in future programs.
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Pulse of the Planets Science Diaries are made possible by the National Science Foundation. Im Jim Metzner.







 
Science Diary: Caterpillars - Many Types