logging in or signing up Biology Presentation jessicafalls Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 965 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: May 04, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Slide 1: Boreal Coniferous Forest (Tiaga) Slide 2: Abiotic Factors Slide 3: Precipitation 40 to 100 cm (15.7 to 39.4 inches) Slide 4: Average Temperature The winter months average 32F (0C) and the summer months average 72F (22C). Slide 5: Soil Trees are acidic which makes the water runoff acidic which makes the soil acidic. Slide 6: Abiotic factors: Mild temperatures Abundant precipitation during fall, winter, spring Relatively cool, dry summer Rocky, acidic soils Slide 7: Spring Slide 8: Summer Slide 9: Autumn Slide 10: Winter Slide 11: Biotic Factors Slide 12: Coniferous trees (or conifers) Dominate the Boreal Coniferous Forest The majority are evergreen (keep their needles in the winter Conifers do drop some needles (a few at a time, all year round) Conifers grow new needles every spring Slide 13: Dominant Trees Slide 14: Dominant Trees Sitka Spruce Sitka Spruce Douglas Fir Slide 15: Dominant Trees Western Hemlock Redwood Slide 16: Dominant Trees Eastern Hemlock Slide 17: Dominant Trees Tamarack Slide 18: Dominant Trees Slide 19: Jack Pine is the dominant tree in burn areas. The cone releases seeds after a fire. The seeds will germinate and colonize. Slide 20: Some Deciduous trees that flourish in burn areas. Poplars White Birch Alders Slide 21: Ways that Conifers have adapted: Cope with poor soil, low temperatures and limited precipitation Low humidity (not much moisture from the air) Tolerate long, dormant periods when water is unavailable Needles reduce water lost to evaporation Shaped for harsh winters Needles do not allow snow to accumulate on branches Branches are flexible to allow bending Slide 22: Other Plants Sphagnum Moss Wintergreen Ferns Bunchberry Blueberry Slide 23: Animals that are dormant in the winter: Black Bear Deer Fly Mosquito Black Fly Slide 24: Animals that are adapted to harsh winters: Snowshoe Hare Lynx Slide 25: Animals that live in protected areas: Red Squirrel Shrew Marmot Slide 26: Animals that migrate south for the winter: Chickadee Woodpecker Slide 27: Birds of Prey Owl Eagle Hawk Falcon Osprey Slide 28: Adaptations to capture prey: Claws Mouth parts adapted to grab, hold, bite Size and strength Concealing coloration Acute senses Behavioral strategies: stealth, cunning, confusion, surprise Slide 29: Adaptations for avoiding capture: Speed Hiding Freezing in position Withdrawal into shell or burrow Counterattack (hooves, horns, biting, stinging, concealing color, acute senses Behavioral strategies (large herds) Slide 30: The End You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.