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WELCOME 2012 Trainees!

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WELCOME 2012 Trainees!. THANK YOU!. CORE THEMES Everything is connected Nature is dynamic Human values impact natural systems. Pennsylvania Master Naturalist Understanding Ecoregions. - PowerPoint PPT Presentation

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Page 1: WELCOME 2012 Trainees!

WELCOME 2012 Trainees!

Page 2: WELCOME 2012 Trainees!

THANK YOU!

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CORE THEMES

• Everything is connected• Nature is dynamic• Human values impact natural systems

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Pennsylvania Master Naturalist

Understanding Ecoregions

“In every outthrust headland, in every curving beach, in every grain of sand there is

the story of the earth.”--Rachel Carson

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Ecoregions bring order to something complex – the natural

landscape.

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Pennsylvania Level II Ecoregions

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Pennsylvania Level III Ecoregions

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Southeastern and Coastal Plains

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Northern PiedmontPiedmont Upland, Piedmont Limestone/

Dolomite Lowland, Triassic Lowland

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Northern PiedmontPiedmont Uplands

• Rounded hills, low ridges, high relief and narrow valleys.

• Substantially higher relief than neighboring ecoregions.

• Folded and faulted paleozoic and precambrian metamorphic rock.

• Deep Ultisols and Inceptisols are common soils. Chrome soils from serpentinite also occur.

• The Chrome soils support eastern serpentine barrens (Chester, Delaware, and Lancaster counties)

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Northern PiedmontPiedmont Limestone/Dolomite Lowlands

• Nearly level, undulating terrain consisting of sink holes, caverns, and disappearing streams.

• Ordovician limestone predominates, dolomite and shale also occur.

• Soils are derived largely from carbonate rock and are very fertile.

• Soils support a natural vegetation of Appalachian Oak Forest (white and red oak), which has been almost entirely replaced by general farming.

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Northern PiedmontTriassic Lowlands

• Wide undulating ridges, broad valleys, limited local relief.

• Underlain by sedimentary rock.

• Soils are derived triassic sandstone, shale, siltstone, and argillite.

• Soils support a natural vegetation of Appalachian Oak forest (dominated by red and white oaks).

• Supports a mosaic of dairy farms, houses, and woodland.

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Natural Communities of theNorthern Piedmont

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Middle Atlantic Coastal Plain:Delaware River Terraces & Uplands

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Middle Atlantic Coastal Plain:Delaware River Terraces & Uplands

• Low, nearly level terraces.

• Ocean modified climate.

• Saline marsh deposits dominate; alluvial and estuarine sand and silt also widespread.

• Underlain by unconsolidated and easily eroded Quaternary gravels, sands and silts.

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Middle Atlantic Coastal Plain:Delaware River Terraces & Uplands

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20071777

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Middle Atlantic Coastal Plain:Delaware River Terraces & Uplands

Coastal Plain Leopard Frog Rana utricularia

Red-bellied TurtlePseudemys rubriventris

King RailRalas elegans elegans

Bog Turtle Clemmys muhlenbergii

Short-eared Owl Asio flammeus flammeus

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PA Endangered Plants

swamp beggar-ticksBidens bidentoides

river bank quillwortIsoetes riparia

coast violet Viola brittoniana

ArrowheadSagittaria calycina

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The Urban Ecosystem

Biological Social

Physical/Built