Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh.
Soil degradation occurs following loss of vegetative cover at both the landscape and individual patch scale at La Pérouse Bay, Manitoba. At the landscape scale, soils from vegetated patches had a higher infiltration rate, and higher moisture, organic content and nitrogen content, but lower salinity...
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Ottawa : National Library of Canada = Bibliothèque nationale du Canada
2002
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ftyorkuniv:oai:yorkspace.library.yorku.ca:10315/13790 2023-10-01T03:54:03+02:00 Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. McLaren, Jennie R. 2002 application/pdf http://hdl.handle.net/10315/13790 en eng Ottawa : National Library of Canada = Bibliothèque nationale du Canada Thesis (M.Sc.) - University of Toronto, 2002. J.R. McLaren: Theses Canada (Amicus No. 29063351) http://hdl.handle.net/10315/13790 http://www.collectionscanada.gc.ca/obj/s4/f2/dsk4/etd/MQ78107.PDF La Pérouse Bay Churchill,Manitoba Puccinellia phryganodes salt marsh Wapusk National Park Ecology Electronic Thesis or Dissertation 2002 ftyorkuniv 2023-09-02T23:02:36Z Soil degradation occurs following loss of vegetative cover at both the landscape and individual patch scale at La Pérouse Bay, Manitoba. At the landscape scale, soils from vegetated patches had a higher infiltration rate, and higher moisture, organic content and nitrogen content, but lower salinity and bulk density, than comparable values for exposed mineral soils. These differences in soil properties resulted in higher establishment success of the forage grass, Puccinellia phryganodes, in vegetated than in mineral soils. At the patch scale, similar to the landscape scale, soil conditions because more adverse for plant growth with increasing patch size (2.5 to 40 cm diameter) following experimental grubbing, resulting in a decrease in the re-colonization potential of Puccinellia. Localized vegetation removal by geese limits plant-soil interactions resulting in areas of intact intertidal salt marsh changing to an alternate state of exposed mud flats, where soil conditions offer little possibility of re-vegetation. Thesis Arctic Churchill Puccinellia phryganodes Wapusk national park York University, Toronto: YorkSpace Arctic La Pérouse Bay ENVELOPE(-93.416,-93.416,58.750,58.750) |
institution |
Open Polar |
collection |
York University, Toronto: YorkSpace |
op_collection_id |
ftyorkuniv |
language |
English |
topic |
La Pérouse Bay Churchill,Manitoba Puccinellia phryganodes salt marsh Wapusk National Park Ecology |
spellingShingle |
La Pérouse Bay Churchill,Manitoba Puccinellia phryganodes salt marsh Wapusk National Park Ecology McLaren, Jennie R. Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
topic_facet |
La Pérouse Bay Churchill,Manitoba Puccinellia phryganodes salt marsh Wapusk National Park Ecology |
description |
Soil degradation occurs following loss of vegetative cover at both the landscape and individual patch scale at La Pérouse Bay, Manitoba. At the landscape scale, soils from vegetated patches had a higher infiltration rate, and higher moisture, organic content and nitrogen content, but lower salinity and bulk density, than comparable values for exposed mineral soils. These differences in soil properties resulted in higher establishment success of the forage grass, Puccinellia phryganodes, in vegetated than in mineral soils. At the patch scale, similar to the landscape scale, soil conditions because more adverse for plant growth with increasing patch size (2.5 to 40 cm diameter) following experimental grubbing, resulting in a decrease in the re-colonization potential of Puccinellia. Localized vegetation removal by geese limits plant-soil interactions resulting in areas of intact intertidal salt marsh changing to an alternate state of exposed mud flats, where soil conditions offer little possibility of re-vegetation. |
format |
Thesis |
author |
McLaren, Jennie R. |
author_facet |
McLaren, Jennie R. |
author_sort |
McLaren, Jennie R. |
title |
Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
title_short |
Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
title_full |
Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
title_fullStr |
Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
title_full_unstemmed |
Vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
title_sort |
vegetation mosaics, patch dynamics and alternate stable states in an arctic intertidal marsh. |
publisher |
Ottawa : National Library of Canada = Bibliothèque nationale du Canada |
publishDate |
2002 |
url |
http://hdl.handle.net/10315/13790 |
long_lat |
ENVELOPE(-93.416,-93.416,58.750,58.750) |
geographic |
Arctic La Pérouse Bay |
geographic_facet |
Arctic La Pérouse Bay |
genre |
Arctic Churchill Puccinellia phryganodes Wapusk national park |
genre_facet |
Arctic Churchill Puccinellia phryganodes Wapusk national park |
op_relation |
Thesis (M.Sc.) - University of Toronto, 2002. J.R. McLaren: Theses Canada (Amicus No. 29063351) http://hdl.handle.net/10315/13790 |
op_rights |
http://www.collectionscanada.gc.ca/obj/s4/f2/dsk4/etd/MQ78107.PDF |
_version_ |
1778521300000571392 |