Show simple item record Piercey-Normore, MD 2007-10-10T12:06:34Z 2007-10-10T12:06:34Z 2005-08-31
dc.identifier.citation 0008-4026; CAN J BOT, AUG 2005, vol. 83, no. 8, p.1029 to 1038. en
dc.description.abstract Lichens are an important component of most terrestrial ecosystems including the subarctic tundra. A narrow band of raised calcareous beach ridges on the Hudson Bay Lowlands supports subarctic tundra alternating with incipient wetlands. This is the first extensive study of lichens on these beach ridges providing valuable noteworthy additions to the flora of Manitoba and baseline data for a developing national park. This study reports 134 species of lichens and seven habitats containing lichen communities; three of the lichens are new reports for Manitoba. Trends in the data were explored among 932 specimens (134 species) and three characters, method of reproduction, growth form, and substratum. The sexually reproducing crustose lichens were found mainly in exposed microenvironments such as on rocks and driftwood. The vegetatively reproducing fruticose lichens grew in the more stable microenvironments such as among moss on the ground. The sexually and vegetatively reproducing foliose lichens, occurring in a wide range of microenvironments and substrata, were more suited to the exposed beach ridge habitats than were either the crustose or fruticose lichens alone. Genetically and symbiotically diverse populations of both algal and fungal partners, resulting from sexual reproduction, would be better equipped than vegetative populations to adapt to changing environments in these exposed habitats. en
dc.format.extent 160437 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights No part of the NRC Research Press electronic journals may be reproduced, stored, or transmitted in any form or by any means, without the written permission of the publisher, except as stated below. Under the Canadian Copyright Act, individuals may download or print single copies of articles for personal research or study. Any person may reproduce short excerpts from articles in the journals for any purpose that respects the moral rights of authors, provided that the source is fully acknowledged. As a courtesy, the consent of authors of such material should be obtained directly from the author. Authorization to reproduce items for other than personal research or study, as stated above, may be obtained via Access © upon payment of the copyright fee of $10.00 per copy. NRC Research Press also extends certain additional rights to authors. The above rights do not extend to copying or reproduction for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale. For such copying or reproduction, arrangements must be made with NRC Research Press. en
dc.rights info:eu-repo/semantics/openAccess
dc.subject distribution en
dc.subject floristic survey en
dc.subject growth form en
dc.subject life history strategies en
dc.subject raised beach ridge en
dc.subject reproduction en
dc.subject MACKENZIE RIVERS en
dc.subject EDAPHIC FACTORS en
dc.subject GENUS CLADONIA en
dc.subject CANADA en
dc.title Lichens from the Hudson Bay Lowlands: Northeastern coastal regions of Wapusk National Park in Manitoba en
dc.type journal article en_US
dc.type info:eu-repo/semantics/article
dc.status Peer reviewed en

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