Observations of Ecodome:
- One grasshopper died while the other one survived
- Less water droplets formed on the sides of the ecodome
- Water droplets formed on the plastic bottle
- There were brown things stuck on the sides of the ecodome
- Lettuce became smaller
- Lettuce changed color on the edges
- Plants are still healthy- no big changes
- There are molds formed on the pebbles- green
- Grass is completely dried
- Grass turned green to a brownish color
- Sunflower seeds are all gone
- Amount of water in the bottle reduced
In conclusion, our ecodome was kind of successful. One of the grasshoppers survived while the other one died (we don’t know when). The grasshopper that died was found between the lid and the plastic wrap; it was stuck there. We think this is the reason why the grasshopper died while the other one survived. It seems like the grasshopper leaped and landed on the plastic wrap, but couldn’t find its way back down. Therefore, he had no access to food and water to survive.
From this we learned to seal the ecodome properly without any gaps, where the grasshoppers might be able to escape.
There were less water droplets formed on the sides of the ecodome because we sprayed less water and placed the ecodome where it doesn’t get direct sunlight. This reduced the amount of water evaporating and condensing. There were still water droplets formed on the water bottle, but it doesn’t really matter.
If you look at the sides of the ecodome closely, there are small, brownish on there. I don’t know what they are, but we think that it might be grasshopper’s feces or the sunflower seeds. I am really curious about this and if I had a chance I want to find out what they actually are (through research).
We also noticed that the lettuce pieces shrank. Research tells that they shrink when they are dried out or they lack of oxygen. If the level of carbon dioxide rises, plants reduce the number of breathing pores, which shrinks the plants in size. Lettuce color changed throughout the time. This was mentioned in all the previous blogs- it changes color when it comes in contact with oxygen and water. The sunflower seeds we put in were gone, I think the grasshoppers ate them or something just happened- we are not sure.
Plants in overall, were still healthy and I think that it would be able to survive for a longer time period.
On the other hand, grasses were completely dried off and it completely changed color to brown. I think this is because it lacked access to water, therefore it couldn’t survive. Also the roots of the grasses were pulled off, which prevents it from getting nutrients and water from the soil.
If you look at the pebbles closely, there are green molds formed on them. I think this formed because the atmosphere in the ecodome was very humid and the pebbles had a lot of contact with water.
Like the previous ecodome, the amount of water in the bottle reduced. This is probably because they evaporated or the grasshoppers drank them.
Ecodome after WWW…
Changes made in the last ecodome:
- Food- we only decided to put in lettuce
- Type of rock- there wasn’t any white pebbles (we normally use) left, so we went out and collected pebbles/rocks
- Water bottle- made a new one
We didn’t really change a lot of things in our final ecodome, because we already know what to put in for the grasshoppers to survive for a long time. Therefore, our final ecodome is made from a lot of research and improvements from previous experiences.
- Why does plants shrink?
- How to keep grasshoppers alive?- Weather and conditions (link)
- Temperature is really important- warm temperature (spring) is the best for grasshoppers
- Spring temperature has minimal effect on the survival of the grasshoppers that hatch- most active time
- Heavy rainfalls can effect the grasshoppers
- Cool wet conditions are better than hot and dry conditions
- Molds are harmful to living things including insects and animals
- Some can be toxic (mentioned in one of the blogs)