Here are a few pictures of us completing our data entry. We took each caterpillar samples and did the following:
1. Identified the plant within the bag containing the caterpillar.
2. Identified the caterpillar contained in the bag.
3. Determined which stage of development the caterpillar was in. (These are called "instars" and these are numbered with 1 being the 'youngest')
4. Photographed each caterpillar and numbered each bag.
5. Removed the frass from the caterpillar bag.
6. Placed the caterpillar and its food source back in the bag and hung it on the "rearing rack".
Day #3/Question #9
What do you think Frass is and why do you think we needed to remove it from the bag?
Day #3/Question #10
What do you think the "rearing rack" is for? Why are the caterpillar bags hung from this rack?
posted by Mrs. Moore @ 12:34 AM
7 Comments:
Frass is something left by insects and insect larvae. You might need to remove it from the bag because they leave excrement which is waste and you would remove it from the bag to keep the caterpillars heathly and clean. How is working in the field going? Have you been getting to know the other scientists? Have you seen any wild animals?
Frass is an organism left by insects and insect larva. Frass can also be a kind of seed that you might have to remove from the bag because it might interfere or make the caterpillar sick.Have you seen any small creatures other than caterpillars, grasshoppers ,and spiders in the field? How far do you travel from your base camp,do you travel far away or do you stay close to find the caterpillar organisms?
We think frass is waste left behind by other insects that could be in the bag.You might want to remove this from the bag because it could harm the caterpillar if it is eaten.Mrs. Moore, how hot is it down there?What is the climate compared to New Hampshire?Mrs. Moore, Cara asks if you are a little freaked out by some of the weird bugs you are finding?Cara was freaked was freaked out when I enlarged it. Cannot wait to skype with you later today. Bye
Frass is a seed from plant. You might to take the frass out of the bag, because it might make the caterpillars sick. Have you seen a lot of different species of caterpillars? Are there still remains from Hurricane Katrina? Do you like the expedition so far? Have you been to the school in Louisiana yet?
I think the rearing rack is a place to hang the caterpillars and keep the bags organized. I think the reason they're hung from the rack is so they feel like they're in a tree or a bush. If they felt like they were in a tree or a bush they would stay calm and be more relaxed. Have you seen any wildlife that you didn't mention in your blog?And have you found any caterpillars with parasites on them?
Correct! A rearing rack is for exactly that! It is a great way to organize our caterpillar "samples" and hanging them from the rack allows for the caterpillars to be more comfortable which will allow them to go through the different stages of the life cycle. Well done!
Frass are caterpillar droppings. We clean them out of the bag so that the caterpillar has a nice, clean area to live.
Frass are caterpillar droppings and and the people like Mrs.Moore clean it so the caterpillar has a clean home. Frass is a little larger than a grain of rice. A caterpillar goes to the bathroom a lot so you probably should clean their bag often.
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