Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands
ulaval.ca Abstract Geese are large, herbivorous birds that graze in huge flocks in ways that may have a considerable impact on vegetation. This is exemplified best in two subspecies of snow geese, the lesser and the greater, both of which have increased dramatically in numbers in recent decades. In...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.567.3808 2023-05-15T14:54:17+02:00 Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands Gilles Gauthier Jean-françois Giroux Line Rochefort The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.3808 http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.3808 http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf Key words Snow geese Grazing Grubbing Herbivory text ftciteseerx 2016-01-08T12:19:27Z ulaval.ca Abstract Geese are large, herbivorous birds that graze in huge flocks in ways that may have a considerable impact on vegetation. This is exemplified best in two subspecies of snow geese, the lesser and the greater, both of which have increased dramatically in numbers in recent decades. In arctic coastal salt marshes, moderate goose grazing on Puccinellia phryganodes enhances plant production, but if it intensifies beyond a certain threshold it destroys the plant cover, leading to hypersalinity, soil erosion and little revegetation for long periods. In freshwater tundra wetlands dominated by Dupontia fisheri, Eriophorum scheuchzeri and brown mosses, grazing changes plant composition and reduces production of Eriophorum. Grazing may also favor mosses at the expense of grasses and sedges because mosses short-stop most of the nitrogen released from goose faeces. In temperate salt marshes, damage to the binding plant Spartina alterniflora from goose grubbing has been locally severe and has led to the devegetation of large areas. In temperate brackish marshes, geese heavily grub the rhizomes of Scirpus pungens. Their grubbing depresses Scirpus production, alters plant species composition, and influences marsh dynamics by enlarging ice-made depressions which are then colonized by other species. Grazing and grubbing in arctic and temperate freshwater wetlands apparently leads to a low-level production equilibrium between geese and the plants, but not in salt marshes. Text Arctic Dupontia fisheri Eriophorum Eriophorum scheuchzeri Puccinellia phryganodes Tundra Unknown Arctic |
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English |
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Key words Snow geese Grazing Grubbing Herbivory |
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Key words Snow geese Grazing Grubbing Herbivory Gilles Gauthier Jean-françois Giroux Line Rochefort Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
topic_facet |
Key words Snow geese Grazing Grubbing Herbivory |
description |
ulaval.ca Abstract Geese are large, herbivorous birds that graze in huge flocks in ways that may have a considerable impact on vegetation. This is exemplified best in two subspecies of snow geese, the lesser and the greater, both of which have increased dramatically in numbers in recent decades. In arctic coastal salt marshes, moderate goose grazing on Puccinellia phryganodes enhances plant production, but if it intensifies beyond a certain threshold it destroys the plant cover, leading to hypersalinity, soil erosion and little revegetation for long periods. In freshwater tundra wetlands dominated by Dupontia fisheri, Eriophorum scheuchzeri and brown mosses, grazing changes plant composition and reduces production of Eriophorum. Grazing may also favor mosses at the expense of grasses and sedges because mosses short-stop most of the nitrogen released from goose faeces. In temperate salt marshes, damage to the binding plant Spartina alterniflora from goose grubbing has been locally severe and has led to the devegetation of large areas. In temperate brackish marshes, geese heavily grub the rhizomes of Scirpus pungens. Their grubbing depresses Scirpus production, alters plant species composition, and influences marsh dynamics by enlarging ice-made depressions which are then colonized by other species. Grazing and grubbing in arctic and temperate freshwater wetlands apparently leads to a low-level production equilibrium between geese and the plants, but not in salt marshes. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Gilles Gauthier Jean-françois Giroux Line Rochefort |
author_facet |
Gilles Gauthier Jean-françois Giroux Line Rochefort |
author_sort |
Gilles Gauthier |
title |
Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
title_short |
Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
title_full |
Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
title_fullStr |
Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
title_full_unstemmed |
Acta Zoologica Sinica © 2006 Acta Zoologica Sinica S04-1 The impact of goose grazing on arctic and temperate wetlands |
title_sort |
acta zoologica sinica © 2006 acta zoologica sinica s04-1 the impact of goose grazing on arctic and temperate wetlands |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.3808 http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Dupontia fisheri Eriophorum Eriophorum scheuchzeri Puccinellia phryganodes Tundra |
genre_facet |
Arctic Dupontia fisheri Eriophorum Eriophorum scheuchzeri Puccinellia phryganodes Tundra |
op_source |
http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.567.3808 http://www.actazool.org/temp/%7Bc137f20f-7c5b-408c-b7f1-c991a1280f58%7D.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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