1st Mid-term
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| % of pre-European invasion wetlands have been lost. | 50
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| Types of Wetlands | Coastal & Inland
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| COASTAL.- Tidal salt marshes in the US (x 10^6 ha) | 1.9 – mostly East Coast, Gulf Mexico
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| Tidal freshwater marshes (x 10^6 ha) | 0.8 – big rivers East Coast, Gulf Mexico
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| Mangrove wetlands (x 10^6 ha) | 0.5 – Florida, Texas, Louisiana
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| INLAND. - Freshwater marshes (x 10^6 ha) | 27 – over half of U.S. in Alaska
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| Peatlands(x 10^6 ha) | 55 – mainly in Alaska
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| •Freshwater swamps(x 10^6 ha) •Riparian systems | 25 – in Southern U.S.
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| Total in Coastal & Inland over the US (x 10^6 ha) | 110
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| % of U.S. Wetlands were lost from 1780’s – 1980’s | 53 (almost the magic number in Env.)
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| Swamps and forested riparian wetlands decrease while... | marshes, shrub wetlands and non-vegetative wetlands have and increase.
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| Upland soils. | 70 % soil, 15 % air, 15 % water
Plants have access to all three
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| Wetland soils. Soils particles are submerged or saturated with water | 70 % soil, 30 % water
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| Air spaces in roots and stems that diffuse oxygen to the plants roots (make up 50-60% of cross sectional root volume) | Aerenchyma
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| Air roots that protrude out of the ground and exposed during low tide (have lenticels). Found in Avicennia – black mangrove | Pneumatophores
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| Grow above the tidal level and have lenticels (holes for air entry). | Prop roots
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| Adaptations in most plants develop from the stem or trunk above the saturation zone | Adventitious roots
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| 1/5 world's freshwater | Amazon River
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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