Croix River Valley and Anoka sandplain : a guide to native habitats. Embed Experimental. Layout options: Carousel Grid List Card. Include data citation:. Copy to clipboard Close.
Helen Allison Savanna
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Trees and shrubs can be ordered three ways: 1 Call ACD at and have a form mailed to you or put your order in over the phone, 2 go to our website to print a form and send it in with payment, 3 use the online payment and ordering option. The ACD promotes the restoration of native ecosystems by offering more native species and categorizing them based upon their ecosystems. Why does this make sense?
Native plants are best suited to Anoka County's conditions. They can survive the soils, moisture and climate without needing additional care.
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They naturally grow well together and compliment each other's characteristics. They are capable of forming the most complex and resilient ecosystems possible in this area, thereby providing the most benefit to local wildlife. Plus, most of our natural communities have been reduced to a few acres by agriculture and development and are in need of restoration.
Hierarchy Level: Alliance.
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Type Concept: This shallow, mixed emergent marsh community ranges broadly over the midwestern United States and adjacent Canada. In the tall emergent zone, Schoenoplectus acutus, Bolboschoenus fluviatilis, Schoenoplectus tabernaemontani, Typha angustifolia , and Typha latifolia may dominate, mixed with a variety of other herbaceous species such as Eleocharis palustris, Juncus spp. In particular, Bolboschoenus fluviatilis, Typha latifolia , and Typha angustifolia sometimes form near-monocultures. The hydrophytic annual and perennial forb zone is dominated by Alisma subcordatum, Alisma triviale, Sagittaria latifolia, Sparganium eurycarpum, Pontederia cordata , along with Bacopa rotundifolia and Heteranthera limosa.
Floating-leaved aquatics are sometimes present, including Azolla caroliniana, Lemna spp. It is found in basin-like depressions, backwater areas of floodplains, and shallow margins of lakes or ponds. Soils are shallow to deep, very poorly drained, consisting of peats, mucks, or mineral materials, often found in alluvium. Diagnostic Characteristics: This broad alliance is defined by shallow marsh settings sites flooded most or all of the growing season but water only approximately cm deep with tall herbaceous emergents dominating.
These usually are some combination of Schoenoplectus tabernaemontani, Bolboschoenus fluviatilis, Schoenoplectus acutus, Typha angustifolia , and Typha latifolia. Rationale for Nominal Species or Physiognomic Features:. Classification Comments: This is a very broadly defined type that intergrades between wet meadows and deep marshes. Shaw and Fredine , cited in Eggers and Reed define shallow marsh as "soils that are saturated to inundated by standing water up to 15 cm in depth, throughout most of the growing season.
It is not yet clear how best to make such distinctions e.
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In Minnesota, Schoenoplectus acutus may be the more common bulrush R. Dana pers. Eleocharis spp. This alliance shares dominant species with other Schoenoplectus -dominated alliances, particularly the closely related Schoenoplectus acutus - Bolboschoenus fluviatilis - Schoenoplectus tabernaemontani Marsh Alliance A That alliance has a greater proportion of floating-leaved and submergent plants but the distinction is fuzzy. Marsh Alliance, note: Schoenoplectus acutus - Bolboschoenus fluviatilis - Schoenoplectus tabernaemontani Marsh Alliance, note: occurs in deeper water and has more cover by floating-leaved and submergent aquatic species.
Equisetum fluviatile - Eleocharis palustris Marsh Alliance, note:. Physiognomy and Structure: This alliance is dominated by tall, perennial coarse-leaved graminoid wetland species, usually m tall, though some examples have canopies up to 3 m tall. Perennial forbs and annual species are present and can be codominant where the tall graminoids form an open canopy.
Dynamics: No Data Available.
Environmental Description: This alliance is found in basin-like depressions, backwater areas of floodplains, and shallow margins of lakes or ponds. Some stands are flooded for the entirety of most growing seasons while others have exposed soil at some point in most years.
Minnesota's St. Croix River Valley and Anoka Sandplain - A guide to native habitats
Geographic Range: This shallow marsh is found across the midwestern and parts of the northeastern United States and adjacent southern Canada from the eastern Great Plains through the Great Lakes region to Pennsylvania, southern Ontario, and Quebec. Omernik Ecoregions:. Confidence Level: Low. Confidence Level Comments:. Grank: GNR.