29 September 2009

29th/30th September

Today we studied the Owl Pellet, which is a good way to apply some of the ecology principles we have discussed in class.  First, owls are predators that help keep their prey population numbers in check.  We can look at an owl pellet to see how healthy the ecosystem is where they live.

We took apart the owl pellet in class and reconstructed its last meal...We also watched a video from the show "Dirty Jobs", which showed how pellets were collected for study.  A link to that video can be found here:  http://dsc.discovery.com/videos/dirty-jobs-owl-vomit-collector.html

For homework, make sure you have completed the section assessments for 2.1/2.2/2.3 as we will correct this on Monday, October 5th.