The White Lake Fen
The White Lake Fen, which is a special type of wetland, has been designated a Protected Area of Lanark
County, and Area of Natural and Scientific Interest and a Provincially Significant Wetland. This fen is home to the rare Bogbean Buckmoth
which is and Endangered Species
only found in one other location in Canada. For more information on the Bogbean Buckmoth,
please click on the photo below of the moth.
Below are exerps from referenced web documents on the White Lake Fen which include literature references and lists
of some of the plant and animal life found there. Click on the highlighted words for links to press releases [1
to the White Lake Fen and a listing of common plants of Lanark County Ontario.
White Lake Fen
From Wikipedia: http://en.wikipedia.org/wiki/White_lake_fen
The White Lake fen is a small wetland on
the shore of White Lake in Lanark County, Ontario in Canada. It has been designated both an Area of
Natural and Scientific Interest and a Provincially Significant Wetland; it is also listed as a Special Place in Lanark County. Fens are
a relatively rare wetland habitat in the region of Lanark County; they can occur on either marble or limestone bedrock.
White lake has a granite dome along its north shore, while it spreads over marble bedrock to the south. A number of calcareous fens
have developed along the south shore. The largest of these has developed in a long narrow arm of the lake, where it stretches for
nearly two kilometers and covers 90 ha.
This fen has large ares of sedge mat dominated by Wooly Sedge (Carex lasiocarpa). Two of
the unusual plants there are the orchids Pogonia ophioglossoides (see photo at lower left) and Calopogon tuberosus. There
are also many species of ericaceous shrubs including Labrador Tea (Ledum groenlandicum), Kalmia angustifolia, and Andromeda
glaucophylla. The presence of evergreen shrubs indicates the low nutrient levels in the wetland. In drier locations
nearer the shore, there are wet conifer forersts with trees including White Cedar and Black Spruce. Fens connected to open water,
like this fen, have been found to differ in subtle ways from more isolated fens.
This fen is also one of the few Canadian locations
for the Bogbean Buckmoth a species of silk moth that feeds on another typical fen plant, Bogbean (Menyanthes
trifoliata)(see photo at lower right).
- Keddy, P.A. 2008. Earth, Water, Fire: An Ecological Profile of Lanark County. General
Store Publishing House, Renfrew, Ontario. 73 p. p. 55.
- Reddoch, J.M. 1984. White Lake Fen. Trail and Landscape 18(3):134-141.
J. and Reddoch, A. (1997). The Orchids in the Ottawa District. Canadian Field-Naturalist, 111, 1–185. Appendix 2.
- Reddoch, J.M. 1984.
White Lake Fen. Trail and Landscape 18(3):134-141.
- Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge
University Press, Cambridge, UK. 497 p.
- Godwin, K. S., Shallenberger, J., Leopold, D. J., and Bedford, B. L. (2002). Linking landscape
properties to local hydrogeologic gradients and plant species occurrence in New York fens: a hydrogeologic setting (HGS) framework.
Wetlands, 22, 722–37.
- http://publications.gc.ca/collections/collection_2011/ec/CW69-14-585-2010-eng.pdf (Endangered Species
Declaration: Bogbean Buckmoth)
Rose Pogonia grows in the fen at White Lake
Bogbean in flower
Click on the text below for a description of field visits to the White Lake Fen by two local naturalist societies. Plant and
animal species observed during these visits are listed. Also listed is a report on the White Lake Fen authored by Joyce Reddock.