Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: World wide in appropriate habitat, which is limited.

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Ecology

Habitat

Comments: Soil, mosses and rotting wood in shaded woods.

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Associations

LIllosporium anamorph of Illosporium carneum parasitises discoloured thallus of Peltigera canina

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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 81 to >300

Comments: More than 100 in North America.

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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Wide spread, if declining is not yet documented; although not abundant at any one site, is common throughout range in appropriate habitat.

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Global Short Term Trend: Relatively stable (=10% change)

Comments: Stable to declining

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Threats

Comments: Subject to decline due to air pollution which this genus is sensitive to.

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Management

Biological Research Needs: Need to review taxonomic status and species' plasticity.

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Names and Taxonomy

Taxonomy

Comments: Stable; but many varieties of this have been segregated as full species. See Hale, 1979, How to Know the lichens; Thomson, 1950, Peltigeras of North Amer., Am. Midl. Nat; Thomson, 1984, American Arctic Lichens. I. Thomson and Hale question full species; Ahti and Vitikainen, 1977. Ann. Bot. Fennici 14 suggest that segregates should be accepted.

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Disclaimer

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