Class Notes (838,977)
Canada (511,164)
Biology (1,140)
BIOL 2903 (148)

3- a.docx

5 Pages
Unlock Document

BIOL 2903
Connie Kristiansen

Lecture 3- a , Natural History 1 th January 25  2012  Hudson Bay Lowland   Is a vast expanse of flat land  The soulton hills/ridges/inlier - They offer the only real source of relief in the Hudson Bay land - Offer nesting sites for the golden eagle - See plants that are no found anywhere else: 1. Rock Polypody ( which are separated by great distances from the main populations = Disjunct pop. 2. Greenland Sandwort- are also a Disjunct Population • This plants is an excellent example of the importance of sire conditions  When we go south of HBL we have lots of relief and also have a continuous forest - That is the Boreal forest that occupies 25 % of Ontario Boreal Forest:   It lies entirely on the Canadian Shield a physiographic region  its southern limit is the Great Lakes- St Lawrence Forest region  Trees: - Trees that pretty much absent in the Boreal Forest :White Pines and Red Pines Lecture 3- a , Natural History 2 - But the Boreal Forest has : Conifers trees such : Black Spruce, white Spruce and Balsam Fir - In some regions in the BF – Jack Pine are common - We have other Trees are found in BF : such White Birch and Trembling Aspen - W HY DO WE HAVE MORE TREES IN THE B OREAL FOREST : 1. Well because its warmer ( + 1 to -3 degree C) 2. Also have a longer growing season 3. More rainfall 4. More relief , 5. Have lots of variation in site ( site includes Temperature, moisture) 6. Lots of glacial deposits he call its gifts  General Features of the Boreal Forest: 1. Conifers are dominant: Black Spruce ( spinning growth, can round them their needes ) • Found in the older part of the BF Balsam Fir needes ( are flat) – thus find Balsam fir – • they have lil bumps that have chemicals that animals eat and then do nit grow Have White Spruce • they have fuller figure Lecture 3- a , Natural History 3 2. Spruce cones houses seeds that are important food for: - Red Squirrels – they are dominant squirrels - Deer Mice - Marten - Fisher - Great Gray
More Less

Related notes for BIOL 2903

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.