Revegetation trials in degraded coastal marshes of the Hudson Bay Lowlands.

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dc.contributor.authorHanda, Tanya I.
dc.date.accessioned2012-04-23T18:55:43Z
dc.date.available2012-04-23T18:55:43Z
dc.date.issued1998
dc.degree.grantorUniversity of Toronto
dc.description.abstractIntense foraging by an increasing population of lesser snow geese, Anser caerulescens L., has led to the conversion of former salt-marsh swards, dominated by Puccinellia phryganodes and Carex subspothacea to hypersaline mudflats, and the conversion of former fresh-water sedge meadows, dominated by Carex aquatilis, to moss carpets. This study reports the potential for natural and assisted revegetation by the dominant graminoids of the former plant communities at La Perouse Bay, Manitoba in the absence of goose foraging. Natural recolonization by P. phryganodes was observed within five years where edaphic conditions were suitable. Transplants of P. phryganodes established readily in an intertidal marsh, and growth was enhanced by amelioration treatments of peat mulch and fertilizer to the soil surface. Natural recolonization by Carex subsparhacea was not observed. Transplants of the sedge did not establish readily in an inland marsh and amelioration treatments showed no effect. In fresh-water areas, tillers of Carex aquatilis established readily in moss carpets and growth was not enhanced by fertilizer application. The potential for revegetation is discussed within the context of vegetational succession and the ongoing degradation processes.
dc.identifier.citationThesis (M.Sc.) - University of Toronto, 1998. Theses Canada (Amicus No. 27864646)
dc.identifier.urihttp://hdl.handle.net/10315/13792
dc.language.isoenen
dc.publisherOttawa : National Library of Canada = Bibliothèque nationale du Canada
dc.rights.articlehttp://www.collectionscanada.gc.ca/obj/s4/f2/dsk1/tape10/PQDD_0003/MQ40695.pdf
dc.subjectlesser snow geese
dc.subjectAnser caerulescens caerulescens L.
dc.subjectPuccinellia phryganodes
dc.subjectCarex subspothacea
dc.subjectLa PĂ©rouse Bay
dc.subjectChurchill, Manitoba
dc.subjectCarex aquatilis
dc.subjectEcology
dc.subjectWapusk National Park
dc.titleRevegetation trials in degraded coastal marshes of the Hudson Bay Lowlands.
dc.typeElectronic Thesis or Dissertation

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