Overview

Distribution

Range Description

S. aloides occurs from Europe east through Siberia and the Caucasus to Kazakhstan. It occurs more or less throughout Europe, but it is difficult to establish its true native range due to frequent introductions. It is likely to have been introduced to France and Switzerland.
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National Distribution

Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology

Native populations of S. aloides typically occur in calcareous, meso-eutrophic lakes, ponds and ditches.


Systems
  • Freshwater
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Associations

In Great Britain and/or Ireland:
Foodplant / feeds on
larva of Bagous binodulus feeds on leaf of Stratiotes aloides
Other: sole host/prey

Foodplant / feeds on
larva of Bagous glabrirostris feeds on Stratiotes aloides

Foodplant / feeds on
larva of Bagous puncticollis feeds on Stratiotes aloides

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Stratiotes aloides

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Stratiotes aloides

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 4
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2014

Assessor/s
Lansdown, R.V.

Reviewer/s
Smith, K.

Contributor/s

Justification
This species is classed as Least Concern as it is widespread with many apparently stable populations. However, it is certainly declining in parts of its range due to loss and degradation of habitats. It is not clear whether the release and establishment of cultivated plants is having an effect on wild populations.
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National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Population

Population
S. aloides is classed as Extinct in Italy, Vulnerable in Croatia and Switzerland, Near Threatened in Hungary and Endangered in Czech Republic. Otherwise it appears to be widespread and abundant throughout its range.

Population Trend
Stable
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Threats

Major Threats
S. aloides appears to be locally declining due to loss and degradation of its habitat, however the actual factors causing this effect are unknown.
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Management

Conservation Actions

Conservation Actions
S. aloides is classed as Extinct in Italy, Vulnerable in Croatia and Switzerland, Near Threatened in Hungary and Endangered in Czech Republic. Otherwise there is no evidence that conservation action is needed.
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These species are introduced in Switzerland.
  • Aeschimann, D. & C. Heitz. 2005. Synonymie-Index der Schweizer Flora und der angrenzenden Gebiete (SISF). 2te Auflage. Documenta Floristicae Helvetiae N° 2. Genève.   http://www.crsf.ch/ External link.
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