Uggleviken
Encyclopedia
Uggleviken is a former bay
and lake
at Norra Djurgården, a rural area in north-eastern central Stockholm
, Sweden
, forming part of the national city park Ekoparken
.
Together with Lillsjön
, Laduviken, and Storängsbotten, Uggleviken used to be part of a bay forking across Norra Djurgården. Today it is reduced to a marsh
or a wet alder
forest with patches of reeds
in its centre. It is regarded as of great natural value and have been mentioned as one of the most interesting botanical and ornithological areas in Stockholm.
to drink at a ceremony. A pavilion constructed in 1902 is still reminding of the era.
s in Stockholm and an important biotope
for many species, is relatively untouched by humans and mostly contains forest and open terrain. Björknäsvägen, a densely trafficked road stretching along the northern side of Uggleviken, reduces accessibility to the wetland, as do the suburban railway Roslagsbanan
and an industrial railway south of it. The Royal Institute of Technology
occupies approximately 20 per cent of the catchment area and on the west side are a number of allotment-gardens
.
and surface runoff
. Pipes from settled areas opening out on the southern side are believed to be the major environmental burden together with run-off water from the road north of the wetland. High levels of phosphorus
have been recorded in the outflow.
, Lesser Tussock-sedge
, Alternate-leaved Golden-saxifrage
, Small Water-pepper
, Marsh Stitchwort
, and Marsh Fern
. Specimen in isolated ponds in the area contained various species of Oligochaeta
, and Gastropods
, such as Valvata critata
and Anisus leucostoma
. Many species of birds are found in the marsh, including Thrush Nightingale
, Redwing
, Dunnock
, and Winter Wren
. Smooth Newt
and Common Toad
were both reported in 1996.
.
Bay
A bay is an area of water mostly surrounded by land. Bays generally have calmer waters than the surrounding sea, due to the surrounding land blocking some waves and often reducing winds. Bays also exist as an inlet in a lake or pond. A large bay may be called a gulf, a sea, a sound, or a bight...
and lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
at Norra Djurgården, a rural area in north-eastern central Stockholm
Stockholm
Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia. Stockholm is the most populous city in Sweden, with a population of 851,155 in the municipality , 1.37 million in the urban area , and around 2.1 million in the metropolitan area...
, Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
, forming part of the national city park Ekoparken
Ekoparken
The Royal National City Park is the world's first National City Park, established in 1995 in the municipalities of Stockholm, Solna and Lidingö in Sweden.1/ km²2/ Population per km²- Pictures :Some places in "The Eco Park"....
.
Together with Lillsjön
Lillsjön, Djurgården
Lillsjön is a small, former lake at Norra Djurgården, a rural area in north-eastern central Stockholm, Sweden, forming part of the national city park Ekoparken...
, Laduviken, and Storängsbotten, Uggleviken used to be part of a bay forking across Norra Djurgården. Today it is reduced to a marsh
Marsh
In geography, a marsh, or morass, is a type of wetland that is subject to frequent or continuous flood. Typically the water is shallow and features grasses, rushes, reeds, typhas, sedges, other herbaceous plants, and moss....
or a wet alder
Alder
Alder is the common name of a genus of flowering plants belonging to the birch family . The genus comprises about 30 species of monoecious trees and shrubs, few reaching large size, distributed throughout the North Temperate Zone and in the Americas along the Andes southwards to...
forest with patches of reeds
Phragmites
Phragmites, the Common reed, is a large perennial grass found in wetlands throughout temperate and tropical regions of the world. Phragmites australis is sometimes regarded as the sole species of the genus Phragmites, though some botanists divide Phragmites australis into three or four species...
in its centre. It is regarded as of great natural value and have been mentioned as one of the most interesting botanical and ornithological areas in Stockholm.
History
The spring of the lake first appears in historical records in the end of the 18th century and during the 19th century and early 20th century it became a popular Trinity spring to which Stockholmers in huge numbers would go on Trinity SundayTrinity Sunday
Trinity Sunday is the first Sunday after Pentecost in the Western Christian liturgical calendar, and the Sunday of Pentecost in Eastern Christianity...
to drink at a ceremony. A pavilion constructed in 1902 is still reminding of the era.
Catchment area
The marsh's catchment area, considered as one of the most important wetlandWetland
A wetland is an area of land whose soil is saturated with water either permanently or seasonally. Wetlands are categorised by their characteristic vegetation, which is adapted to these unique soil conditions....
s in Stockholm and an important biotope
Biotope
Biotope is an area of uniform environmental conditions providing a living place for a specific assemblage of plants and animals. Biotope is almost synonymous with the term habitat, but while the subject of a habitat is a species or a population, the subject of a biotope is a biological community.It...
for many species, is relatively untouched by humans and mostly contains forest and open terrain. Björknäsvägen, a densely trafficked road stretching along the northern side of Uggleviken, reduces accessibility to the wetland, as do the suburban railway Roslagsbanan
Roslagsbanan
-SL southern network:*Stockholms östra–Djursholms Ösby–Roslags Näsby–Vallentuna–Lindholmen–Kårsta *Stockholms östra–Djursholms Ösby–Roslags Näsby–Åkersberga–Österskär...
and an industrial railway south of it. The Royal Institute of Technology
Royal Institute of Technology
The Royal Institute of Technology is a university in Stockholm, Sweden. KTH was founded in 1827 as Sweden's first polytechnic and is one of Scandinavia's largest institutions of higher education in technology. KTH accounts for one-third of Sweden’s technical research and engineering education...
occupies approximately 20 per cent of the catchment area and on the west side are a number of allotment-gardens
Allotment (gardening)
An allotment garden, often called simply an allotment, is a plot of land made available for individual, non-professional gardening. Such plots are formed by subdividing a piece of land into a few or up to several hundreds of land parcels that are assigned to individuals or families...
.
Environmental influence
The major inflow comes from stormwaterStormwater
Stormwater is water that originates during precipitation events. It may also be used to apply to water that originates with snowmelt that enters the stormwater system...
and surface runoff
Surface runoff
Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called a nonpoint source...
. Pipes from settled areas opening out on the southern side are believed to be the major environmental burden together with run-off water from the road north of the wetland. High levels of phosphorus
Phosphorus
Phosphorus is the chemical element that has the symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidized state, as inorganic phosphate rocks...
have been recorded in the outflow.
Flora and fauna
Botanically, the area is unique with a presence of many rare species such as Water SedgeCarex
Carex is a genus of plants in the family Cyperaceae, commonly known as sedges. Other members of the Cyperaceae family are also called sedges, however those of genus Carex may be called "true" sedges, and it is the most species-rich genus in the family. The study of Carex is known as...
, Lesser Tussock-sedge
Carex
Carex is a genus of plants in the family Cyperaceae, commonly known as sedges. Other members of the Cyperaceae family are also called sedges, however those of genus Carex may be called "true" sedges, and it is the most species-rich genus in the family. The study of Carex is known as...
, Alternate-leaved Golden-saxifrage
Carex
Carex is a genus of plants in the family Cyperaceae, commonly known as sedges. Other members of the Cyperaceae family are also called sedges, however those of genus Carex may be called "true" sedges, and it is the most species-rich genus in the family. The study of Carex is known as...
, Small Water-pepper
Persicaria
Persicaria is a genus of plants in the family Polygonaceae, collectively known as smartweeds or pinkweeds. The genus was formerly included in the genus Polygonum.The genus includes both annuals and perennials...
, Marsh Stitchwort
Stellaria
Stellaria is a genus of about 90-120 species flowering plants in the family Caryophyllaceae, with a cosmopolitan distribution. Common names include stitchwort and chickweed.-Food use:...
, and Marsh Fern
Thelypteridaceae
Thelypteridaceae is a family of about 900 species of ferns.The ferns are terrestrial, with the exception of a few which are lithophytes . The bulk of the species are tropical, although there are a number of temperate species....
. Specimen in isolated ponds in the area contained various species of Oligochaeta
Oligochaeta
Oligochaeta is a subclass of animals in the biological phylum Annelida, which is made up of many types of aquatic and terrestrial worms, and this includes all of the various earthworms...
, and Gastropods
Gastropoda
The Gastropoda or gastropods, more commonly known as snails and slugs, are a large taxonomic class within the phylum Mollusca. The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to quite large...
, such as Valvata critata
Valvata
Valvata is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails.-Species:The type species for this genus is Valvata cristata O.F. Müller, 1774....
and Anisus leucostoma
Anisus
Anisus is a genus of small air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ramshorn snails and their allies.-Species:The genus contains the following species:subgenus Anisus...
. Many species of birds are found in the marsh, including Thrush Nightingale
Thrush Nightingale
The Thrush Nightingale, Luscinia luscinia , is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but is now more generally considered to be an Old World flycatcher, Muscicapidae...
, Redwing
Redwing
The Redwing is a bird in the thrush family Turdidae, native to Europe and Asia, slightly smaller than the related Song Thrush.-Taxonomy:...
, Dunnock
Dunnock
The Dunnock, Prunella modularis, is a small passerine bird found throughout temperate Europe and into Asia. It is by far the most widespread member of the accentor family, which otherwise consists of mountain species...
, and Winter Wren
Winter Wren
The Winter Wren is a very small North American bird and a member of the mainly New World wren family Troglodytidae. It was once lumped with Troglodytes pacificus of western North America and Troglodytes troglodytes of Eurasia under the name Winter Wren.It breeds in coniferous forests from British...
. Smooth Newt
Smooth Newt
The Smooth Newt, also known as the Common Newt, Lissotriton vulgaris is the most common newt species of the Lissotriton genus of amphibians. L...
and Common Toad
Common Toad
The common toad or European toad is an amphibian widespread throughout Europe, with the exception of Iceland, Ireland and some Mediterranean islands...
were both reported in 1996.
Visiting
Both the wetland and the surrounding national park are easily accessible. The nearest metro station is Tekniska högskolanTekniska högskolan
Tekniska högskolan may refer to:*Helsinki University of Technology, a university in Helsinki, Finland. Official Swedish-language name: Tekniska högskolan....
.
See also
- Geography of StockholmGeography of StockholmThe City of Stockholm is situated on fourteen islands and on the banks to the archipelago where Lake Mälaren meets the Baltic Sea. The city centre is virtually situated on the water.- Islands and islets :- Lakes and watercourses :...
- Lakes of Sweden
- UggleviksreservoarenUggleviksreservoarenUggleviksreservoaren is a water reservoir located in the forest Lilljansskogen near Uggleviken, a fen at Norra Djurgården in north-eastern central Stockholm, Sweden....
- Lill-Janskogen