To conclude our work this week, we will assemble a food web of as many species as we can based on the research students did over the past few days into abiotic factors, biotic factors, and populations data. Important vocabulary we will use to build our food web includes node, edge, and energy flow. Class notes are pictured below:
For your assignment today, construct a food web using the biotic factors in your Google Doc. On the sticky note provided, write down population data for 2-3 species in Yellowstone and turn in to Mr. Swart. We will use the class population data along with the food webs from today to dig further into the concepts of trophic cascades and carrying capacity next week.
Combined student-researched data to be used for constructing food webs:
| Species | Population | Mass (kg)/organism | Population mass (kg) |
| Peregrine Falcon | 9 | 1 | 9 |
| Bald Eagles | 14 | 5 | 70 |
| Wolverine | 7 | 20 | 140 |
| Canada Lynx | 112 | 10 | 1120 |
| Cougars | 25 | 80 | 2000 |
| Grey Wolves | 104 | 34 | 3536 |
| Beaver | 500 | 23 | 11500 |
| Mountain Goat | 208 | 100 | 20800 |
| Pronghorn Sheep | 466 | 55 | 25630 |
| Bighorn Sheep | 328 | 100 | 32800 |
| Black Bears | 650 | 110 | 71500 |
| Mule Deer | 1850 | 45 | 83250 |
| Grizzly Bears | 610 | 300 | 183000 |
| Moose | 400 | 800 | 320000 |
| Bison | 4000 | 630 | 2520000 |
| Elk | 20000 | 275 | 5500000 |
Our work today is to find the mass (Google the mass of each species – look for grams (g) or kilograms (kg)). Copy and paste the table into Google Sheets. Fill in the mass of each organism (convert to kg) and then calculate the mass of each population using the formula in the population mass column.
The Art of Science 