Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands
grantor: University of Toronto Grubbing and grazing by increasing numbers of lesser snow geese (' Anser caerulescens caerulescens') have led to loss of vegetation and soil degradation in salt marshes and on beach ridges. These changes have had a deleterious effect on the soil seed bank by...
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ftunivtoronto:oai:localhost:1807/13539 2023-05-15T16:35:27+02:00 Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands Chang, Esther R. 2000 9521989 bytes application/pdf http://hdl.handle.net/1807/13539 http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/MQ49721.pdf en en_US eng http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/MQ49721.pdf http://hdl.handle.net/1807/13539 Thesis 2000 ftunivtoronto 2020-06-17T11:11:47Z grantor: University of Toronto Grubbing and grazing by increasing numbers of lesser snow geese (' Anser caerulescens caerulescens') have led to loss of vegetation and soil degradation in salt marshes and on beach ridges. These changes have had a deleterious effect on the soil seed bank by reducing density of seeds and shifting the composition from species present prior to the disturbance to invasive species. In the salt marsh, more recently degraded plots had greater revegetation potential from the remaining seed bank than plots where loss of vegetation was of long standing. Seed banks in beach-ridge soils were less affected by degradation due to the greater proportion of weedy species present in the original vegetation. Studies of the seed and vegetation dynamics in the supratidal marsh indicated that while there were no systematic differences between the seed rain in undamaged and degraded sites, degradation processes constrain recruitment at the entrapment, germination and establishment stages. M.Sc. Thesis Hudson Bay University of Toronto: Research Repository T-Space Hudson Bay Hudson |
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Open Polar |
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University of Toronto: Research Repository T-Space |
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ftunivtoronto |
language |
English |
description |
grantor: University of Toronto Grubbing and grazing by increasing numbers of lesser snow geese (' Anser caerulescens caerulescens') have led to loss of vegetation and soil degradation in salt marshes and on beach ridges. These changes have had a deleterious effect on the soil seed bank by reducing density of seeds and shifting the composition from species present prior to the disturbance to invasive species. In the salt marsh, more recently degraded plots had greater revegetation potential from the remaining seed bank than plots where loss of vegetation was of long standing. Seed banks in beach-ridge soils were less affected by degradation due to the greater proportion of weedy species present in the original vegetation. Studies of the seed and vegetation dynamics in the supratidal marsh indicated that while there were no systematic differences between the seed rain in undamaged and degraded sites, degradation processes constrain recruitment at the entrapment, germination and establishment stages. M.Sc. |
format |
Thesis |
author |
Chang, Esther R. |
spellingShingle |
Chang, Esther R. Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
author_facet |
Chang, Esther R. |
author_sort |
Chang, Esther R. |
title |
Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
title_short |
Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
title_full |
Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
title_fullStr |
Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
title_full_unstemmed |
Seed and vegetation dynamics in undamaged and degraded coastal habitats of the Hudson Bay lowlands |
title_sort |
seed and vegetation dynamics in undamaged and degraded coastal habitats of the hudson bay lowlands |
publishDate |
2000 |
url |
http://hdl.handle.net/1807/13539 http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/MQ49721.pdf |
geographic |
Hudson Bay Hudson |
geographic_facet |
Hudson Bay Hudson |
genre |
Hudson Bay |
genre_facet |
Hudson Bay |
op_relation |
http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0016/MQ49721.pdf http://hdl.handle.net/1807/13539 |
_version_ |
1766025671679672320 |