Oldgrowth Specklebelly Lichen
Scientific Name: Pseudocyphellaria rainierensis
Other/Previous Names: Oldgrowth Specklebelly
Taxonomy Group: Lichens
Range: British Columbia
Last COSEWIC Assessment: April 2010
Last COSEWIC Designation: Special Concern
SARA Status: Schedule 1, Special Concern
Image of Oldgrowth Specklebelly Lichen
The Oldgrowth Specklebelly Lichen (Pseudocyphellaria rainierensis Imsh.) is a distinctive macrolichen characterized by large, draping, curtain-like lobes, a pale greenish blue upper surface, a green algal photobiont (accompanied by a cyanobacterial photobiont in the form of internal cephalodia), ragged, lobulate to isidiate lobe margins, and a pale lower surface bearing scattered small white spots (pseudocyphellae). (Updated 2017/05/30)
Distribution and Population
Oldgrowth Specklebelly is endemic to western North America, where it grows in humid coastal regions from southeast Alaska (58°N) to Oregon (43°N). In the northern portions of its range, it is restricted to within a few kilometres of the ocean, though in southern Canada it extends somewhat farther inland. In the Washington and Oregon it is mostly absent from the immediate coast, occurring instead along the windward slopes of the Cascades. (Updated 2017/05/30)
In Canada, Oldgrowth Specklebelly colonizes the branches and trunks of conifers in ecologically stable lowland to mid-elevation oldgrowth forests, especially in localized nutrient hotspots. Nutrient hotspots tend to develop in three situations: (1) within the drip zones of large old Yellow-cedar trees, usually on hillsides; (2) in the (nutrient receiving) toe-slope position at the base of hillsides, particularly in localities underlain by calcareous bedrock; and (3) in well ventilated seaside trees in coves sheltered from storm winds. The first habitat type appears to be of greater importance in the northern portion of the range, where climatic conditions suitable to Oldgrowth Specklebelly overlap with the highly acidic Coastal Crystalline Belt. Farther south, in southern British Columbia and adjacent portions of the US northwest, toe-position localities assume greater importance. Here large old Yellow-cedar trees carry soil nutrients into the forest canopy, and so create the elevated nutrient conditions required for successful establishment by Oldgrowth Specklebelly. (Updated 2017/05/30)
Oldgrowth Specklebelly is an asexual species in which reproduction depends on the propagation and dissemination of thallus fragments, largely in the form of marginal lobules – probably an adaptation for rapid colonization of nutrient-enriched conifer branches prone to heavy overgrowth by mosses. Because marginal lobules are relatively heavy, they can be expected to disperse over only short distances from the host lichen. Presumably this helps to explain this species' highly discontinuous occurrence, which is further enforced by its specific requirement for nutrient enriched microsites. Rates of dispersal to new host trees are thus very slow in Oldgrowth Specklebelly, apparently operating at a time scale of hundreds of years even within a single stand. Deep shade is detrimental to this species, as is exposure to full sunlight; only in open, humid, stable forest ecosystems does Oldgrowth Specklebelly encounter environmental conditions suitable both for establishment and growth. Oldgrowth stands are thus critical to the long-term persistence of this species. (Updated 2017/05/30)
Oldgrowth Specklebelly is confined in Canada to coastal temperate rainforests older than about 200 to 300 years. Here it is further restricted to the branches and trunks of conifers growing in nutrient hotspots, especially nutrient-receiving toe-positions and the dripzones of large old Yellow-cedar trees. Because such habitats types are necessarily restricted to very old forest ecosystems, it is clear that oldgrowth is critical to the long term survival of Oldgrowth Specklebelly. Hence any human activity or natural process that results in a loss or significant reduction in oldgrowth constitutes a major threat to this species. On northern Vancouver Island, nearly half of the original oldgrowth forest land base within the horizontal and elevational range of Oldgrowth Specklebelly has been harvested, most of it within the past 25 years. In a rainforest region where wildfire is rare, industrial-scale forestry thus stands as by far the most important cause of decline in Oldgrowth Specklebelly – both as a result of habitat loss per se, and, in the long term, of on-going fragmentation of the remaining oldgrowth islands. (Updated 2017/05/30)
Federal ProtectionMore information about SARA, including how it protects individual species, is available in the Species at Risk Act: A Guide.
Provincial and Territorial Protection
PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.
10 record(s) found.
- COSEWIC Status Reports (1 record(s) found.)
- COSEWIC Assessments (1 record(s) found.)
- Response Statements (1 record(s) found.)
- Action Plans (1 record(s) found.)
- Management Plans (1 record(s) found.)
- Orders (2 record(s) found.)
- COSEWIC Annual Reports (1 record(s) found.)
- Consultation Documents (1 record(s) found.)
- Recovery Document Posting Plans (1 record(s) found.)
COSEWIC Status Reports
COSEWIC Annual Reports
COSEWIC Annual Report - 2010 (2010)Under Canada’s Species At Risk Act (SARA), the foremost function of COSEWIC is to “assess the status of each wildlife species considered by COSEWIC to be at risk and, as part of the assessment, identify existing and potential threats to the species”. During the past year, COSEWIC held two Wildlife Species Assessment Meetings and reviewed the status of 79 wildlife species (species, subspecies, populations). During the meeting of November 2009, COSEWIC assessed or reviewed the classification of the status of 28 wildlife species. COSEWIC assessed or reviewed the classification of an additional 51 wildlife species (species, subspecies and populations) during their April 2010 meeting. For species already found on Schedule 1 of SARA, the classification of 32 species was reviewed by COSEWIC and the status of the wildlife species was confirmed to be in the same category (extirpated - no longer found in the wild in Canada but occurring elsewhere, endangered, threatened or of special concern). The wildlife species assessment results for the 2009-2010 reporting period include the following: Extirpated: 6 Endangered: 39 Threatened: 16 Special Concern: 17 Data Deficient: 1 This report transmits to the Minister the status of 46 species newly classified as extirpated, endangered, threatened or of special concern, fulfilling COSEWIC’s obligations under SARA Section 24 and 25. A full detailed summary of the assessment for each species and the reason for the designation can be found in Appendix I of the attached report. Since its inception, COSEWIC has assessed 602 wildlife species in various risk categories, including 262 Endangered, 151 Threatened, 166 Special Concern and 23 Extirpated. In addition, 13 wildlife species have been assessed as Extinct. Also, to date, 46 wildlife species have been identified by COSEWIC as Data Deficient and 166 wildlife species were assessed as Not at Risk. This year has been a particularly productive year for COSEWIC’s Aboriginal Traditional Knowledge (ATK) Subcommittee. In April 2010 COSEWIC approved the Aboriginal Traditional Knowledge Process and Protocol Guidelines, providing clear and agreed principles for the gathering of Aboriginal Traditional Knowledge to carry out COSEWIC functions as required under Section 15(2) of SARA (See Appendix III of the attached report). We are grateful for the rich and enthusiastic contribution made by community elders and experts in helping the ATK Subcommittee prepare the ATK protocols.
Recovery Document Posting Plans
- Date modified: