Oregon Field Guide
Crayfish Invasion; Lichen; Heritage Trees; Conservation Dogs
Season 22 Episode 2210 | 29m 15sVideo has Closed Captions
Crayfish Invasion; Lichen; Heritage Trees; Working Dogs for Conservation
Crayfish Invasion - Eastern crayfish invade Oregon rivers through a surprise route. Lichen - Lichen can teach us volumes about the quality of the air we breathe. Heritage Trees - Portland's Heritage Tree program recognizes and preserves trees with special significance. Working Dogs for Conservation - A conservation dog uses his amazing sense of smell to help a researcher find rare plants.
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Oregon Field Guide is a local public television program presented by OPB
Oregon Field Guide
Crayfish Invasion; Lichen; Heritage Trees; Conservation Dogs
Season 22 Episode 2210 | 29m 15sVideo has Closed Captions
Crayfish Invasion - Eastern crayfish invade Oregon rivers through a surprise route. Lichen - Lichen can teach us volumes about the quality of the air we breathe. Heritage Trees - Portland's Heritage Tree program recognizes and preserves trees with special significance. Working Dogs for Conservation - A conservation dog uses his amazing sense of smell to help a researcher find rare plants.
Problems with Closed Captions? Closed Captioning Feedback
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What the lichen growing on Oregon's trees can tell us about air quality
Video has Closed Captions
What could possibly be inspiring about that green stuff covering Oregon’s trees? (8m 21s)
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Oregon Field Guide is a local public television program presented by OPB