The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation
The known moss flora of Terra Nova National Park, eastern Newfoundland, comp~ises 210 species. Eighty-two percent of the moss species occurring in Terra Nova are widespread or widespread-sporadic in Newfoundland. Other Newfoundland distributional elements present in the Terra Nova moss flora are the...
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Memorial University of Newfoundland
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ftmemorialuniv:oai:research.library.mun.ca:12137 2023-10-01T03:53:39+02:00 The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation Hedderson, Terry Albert 1987-07 application/pdf https://research.library.mun.ca/12137/ https://research.library.mun.ca/12137/1/Hedderson_TerryAlbert.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/12137/1/Hedderson_TerryAlbert.pdf Hedderson, Terry Albert <https://research.library.mun.ca/view/creator_az/Hedderson=3ATerry_Albert=3A=3A.html> (1987) The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1987 ftmemorialuniv 2023-09-03T06:48:38Z The known moss flora of Terra Nova National Park, eastern Newfoundland, comp~ises 210 species. Eighty-two percent of the moss species occurring in Terra Nova are widespread or widespread-sporadic in Newfoundland. Other Newfoundland distributional elements present in the Terra Nova moss flora are the northwestern, southern, southeastern, and disjunct elements, but four of the mosses occurring in Terra Nova appear to belong to a previously unrecognized northeastern element of the Newfoundland flora. The majority (70.9%) of Terra Nova's mosses are of boreal affinity and are widely distributed in the North American coniferous forest belt. An additional 10.5 percent of the Terra Nova mosses are cosmopolitan while 9.5 percent are temperate and 4.8 percent are arctic-montane species. The remaining 4.3 percent of the mosses are of montane affinity, and disjunct between eastern and western North America. In Terra Nova, temperate species at their northern limit are concentrated in balsam fir stands, while arctic-montane species are restricted to exposed cliffs, scree slopes, and coastal exposures. Montane species are largely confined to exposed or freshwater habitats. Inability to tolerate high summer temperatures limits the distributions of both arctic-montane and montane species. In Terra Nova, species of differing phytogeographic affinities co-occur on cliffs and scree slopes. The microhabitat relationships of five selected species from such habitats were evaluated by Discriminant Functions Analysis and Multiple Regression Analysis. The five mosses have distinct and different microhabitats on cliffs and scree slopes in Terra Nova, and abundance of all but one is associated with variation in at least one microhabitat variable. Micro-distribution of Grimmia torquata, an arctic-montane species at its southern limit, appears to be deterJ]lined by sensitivity to high summer temperatures. Both southern mosses at their northern limit (Aulacomnium androgynum, Isothecium myosuroides) appear to be limited by water availability ... Thesis Arctic Newfoundland Memorial University of Newfoundland: Research Repository Arctic |
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Memorial University of Newfoundland: Research Repository |
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description |
The known moss flora of Terra Nova National Park, eastern Newfoundland, comp~ises 210 species. Eighty-two percent of the moss species occurring in Terra Nova are widespread or widespread-sporadic in Newfoundland. Other Newfoundland distributional elements present in the Terra Nova moss flora are the northwestern, southern, southeastern, and disjunct elements, but four of the mosses occurring in Terra Nova appear to belong to a previously unrecognized northeastern element of the Newfoundland flora. The majority (70.9%) of Terra Nova's mosses are of boreal affinity and are widely distributed in the North American coniferous forest belt. An additional 10.5 percent of the Terra Nova mosses are cosmopolitan while 9.5 percent are temperate and 4.8 percent are arctic-montane species. The remaining 4.3 percent of the mosses are of montane affinity, and disjunct between eastern and western North America. In Terra Nova, temperate species at their northern limit are concentrated in balsam fir stands, while arctic-montane species are restricted to exposed cliffs, scree slopes, and coastal exposures. Montane species are largely confined to exposed or freshwater habitats. Inability to tolerate high summer temperatures limits the distributions of both arctic-montane and montane species. In Terra Nova, species of differing phytogeographic affinities co-occur on cliffs and scree slopes. The microhabitat relationships of five selected species from such habitats were evaluated by Discriminant Functions Analysis and Multiple Regression Analysis. The five mosses have distinct and different microhabitats on cliffs and scree slopes in Terra Nova, and abundance of all but one is associated with variation in at least one microhabitat variable. Micro-distribution of Grimmia torquata, an arctic-montane species at its southern limit, appears to be deterJ]lined by sensitivity to high summer temperatures. Both southern mosses at their northern limit (Aulacomnium androgynum, Isothecium myosuroides) appear to be limited by water availability ... |
format |
Thesis |
author |
Hedderson, Terry Albert |
spellingShingle |
Hedderson, Terry Albert The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
author_facet |
Hedderson, Terry Albert |
author_sort |
Hedderson, Terry Albert |
title |
The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
title_short |
The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
title_full |
The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
title_fullStr |
The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
title_full_unstemmed |
The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation |
title_sort |
mosses of terra nova national park, eastern newfoundland, a bryofloristic analysis and interpretation |
publisher |
Memorial University of Newfoundland |
publishDate |
1987 |
url |
https://research.library.mun.ca/12137/ https://research.library.mun.ca/12137/1/Hedderson_TerryAlbert.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Newfoundland |
genre_facet |
Arctic Newfoundland |
op_relation |
https://research.library.mun.ca/12137/1/Hedderson_TerryAlbert.pdf Hedderson, Terry Albert <https://research.library.mun.ca/view/creator_az/Hedderson=3ATerry_Albert=3A=3A.html> (1987) The mosses of Terra Nova National Park, Eastern Newfoundland, a bryofloristic analysis and interpretation. Masters thesis, Memorial University of Newfoundland. |
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thesis_license |
_version_ |
1778520392010301440 |