Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

11721010

View Community Concepts - Summary

add all query results to datacart,   add plots on page to datacart,   drop plots on page from datacart

Add/Drop	Name	Reference	Plots↓	Description
Comm #11711	Shale Barren Slopes Sparse Vegetation » more details accession code: VB.CC.36801.CEGL002294	Midwestern Ecology Working Group...	0	This shale barrens slopes sparse vegetation is found in the western Great Plains and Black Hills ecoregion of the United States. In the Black Hills, this type has been provisionally applied to sparsely vegetated exposures of the Cretaceous Mowry Formation, made up of siliceous shales, clays and bentonite. Slopes are flat to moderate and of variable aspect. Soils are poor, loose and easily eroded. The Mowry Formation occurs on the periphery of the Black Hills, at elevations ranging from 915 to 1300 m (3000-4250 feet). This is a sparse vegetation type with total vegetative cover usually less than 10%. No information is available as to species composition.
Comm #11712	Opuntia polyacantha / Pleuraphis jamesii Shrubland » more details accession code: VB.CC.31996.CEGL002299	Western Ecology Working Group of...	0	This low-succulent association occurs on hot, dry, relatively undisturbed sites on benches, valley floors, and slopes in the northern Colorado Plateau. Stands occur on gentle to steep (4-72%) slopes between 1457 and 1628 m (4780-5340 feet) elevation. Substrates may be fine- or coarse-textured soils derived from eolian sand, alluvium and colluvium. Total vegetation cover is between 15 and 30% and is characterized by patches of <i>Opuntia polyacantha</i>, with clumps of <i>Pleuraphis jamesii</i> between the shrubs. Other drought-tolerant shrubs may occur in the canopy with low cover, including <i>Artemisia tridentata ssp. wyomingensis, Atriplex confertifolia, Atriplex canescens, Chrysothamnus viscidiflorus, Ephedra</i> spp., <i>Gutierrezia sarothrae, Grayia spinosa</i>, and <i>Sarcobatus vermiculatus</i>. The herbaceous layer is dominated by grasses, with <i>Achnatherum hymenoides</i> and <i>Hesperostipa comata</i> often present in addition to <i>Pleuraphis jamesii</i>. <i>Juniperus</i><i> osteosperma</i> trees are scattered throughout the community but do not form a stratum. Cryptogams are absent in gravelly sites but may have up to 25% cover in sandy sites.
Comm #11713	CEGL004335 » more details accession code: VB.CC.5942.CEGL004335 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11714	Igneous - Metamorphic Bedrock Inland Lake Shore Sparse Vegetation » more details accession code: VB.CC.36946.CEGL002301	Midwestern Ecology Working Group...	0	This igneous - metamorphic inland bedrock lakeshore community type is found on small lakes on the Canadian shield in the Upper Great Lakes region of the United States and Canada, and perhaps more widely in Canada. Stands are exposed bedrock along lakeshores. Substrate may be either granite/metamorphic or basalt/conglomerate. Vegetation is sparse, but little information is available to further characterize this type.
Comm #11715	Bedrock - Boulder Rivershore Vegetation » more details accession code: VB.CC.36818.CEGL002302	Midwestern Ecology Working Group...	0	This bedrock-boulder rivershore community type is found in the upper Great Lakes region of the United States and Canada, and perhaps elsewhere. Stands are found on rivers where scouring by ice or flooding creates a sparsely vegetated zone along the river. Substrate can be a variety of rocky types, including sandstone and various igneous and metamorphic rocks. The vegetation of this type has not yet been characterized.
Comm #11716	Igneous - Metamorphic Cobble - Gravel Inland Lake Shore Sparse Vegetation » more details accession code: VB.CC.36944.CEGL002303	Midwestern Ecology Working Group...	0	This igneous - metamorphic cobble - gravel inland lakeshore community type is possibly found on small lakes on the Canadian shield in the Upper Great Lakes region of the United States and Canada, and perhaps more widely in Canada. Stands are exposed bedrock along lakeshores. Cobble-gravel substrate may be either granite/metamorphic or basalt/conglomerate (?). Vegetation is sparse, but little information is available to further characterize this type.
Comm #11717	Igneous - Metamorphic Cobble - Gravel River Shore Sparse Vegetation » more details accession code: VB.CC.36911.CEGL002304	Midwestern Ecology Working Group...	0	This igneous - metamorphic cobble - gravel bedrock rivershore community is found in the upper Great Lakes region of the United States and Canada and perhaps elsewhere. Stands are found on rivers where scouring by ice or flooding creates a sparsely vegetated zone along the river. Substrate is cobble-gravel and may be composed of either basalt/diabase or granite/metamorphic rocks. The vegetation of this type has not yet been characterized.
Comm #11718	Scree - Talus Black Hills Sparse Vegetation » more details accession code: VB.CC.36691.CEGL002307	Midwestern Ecology Working Group...	0	This type has been reported from the Black Hills region of the United States, and may occur elsewhere in the Rocky Mountains. Substrate includes igneous and metamorphic rocks, but more information is needed on what kinds of rock formations produce the scree or talus habitat. Type may not be found at any scale worth separating from ~<i>Pinus ponderosa</i> Scree Woodland (CEGL000878)$$.
Comm #11719	CEGL002173 » more details accession code: VB.CC.4698.CEGL002173 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11720	Limestone - Dolostone Midwest Talus Vegetation » more details accession code: VB.CC.36950.CEGL002308	Midwestern Ecology Working Group...	0	This limestone-dolostone talus community is found throughout the central/upper midwestern United States, including the Ozark region, and adjacent Canada. Stands occur at the bases of steep cliffs along larger streams or rivers, or strongly dissected valleys. Aspect is variable, and moisture could be moist or dry. Soils are generally absent. Parent material could be limestone or dolostone with a mixture of rock fragments and large boulders. The vegetation is generally sparse but may vary depending on degree of slope, exposure (open versus shaded), and rock type. The composition of the type may be heavily influenced by adjacent forested stands. In Missouri, characteristic species include the ferns <i>Adiantum pedatum, Diplazium pycnocarpon (= Athyrium pycnocarpon), Asplenium rhizophyllum (= Camptosorus rhizophyllus)</i>, and <i>Cystopteris bulbifera</i>. Other herbaceous species include <i>Aralia nudicaulis, Impatiens capensis, Pilea pumila, Polymnia canadensis</i>, and <i>Physalis missouriensis</i>. Scattered woody plants include <i>Hydrangea arborescens</i> and <i>Staphylea trifolia</i>. In Ontario open talus stands contain <i>Adiantum pedatum, Ageratina altissima (= Eupatorium rugosum), Geranium robertianum, Impatiens capensis, Poa pratensis</i>, and <i>Toxicodendron radicans</i>.