Goose-Induced Changes in Vegetation and Land Cover between 1976 and 1997 in an Arctic Coastal Marsh
نویسندگان
چکیده
*Corresponding author. Wildlife Research and Development Section, Ontario Ministry of Natural Resources, 300 Water Street, Peterborough, Ontario, K9J 8M5, Canada. [email protected] Department of Botany, University of Toronto, 25 Willcocks Street, Toronto, Ontario, M5S 3B2, Canada. Department of Ornithology, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024, U.S.A. Abstract
منابع مشابه
The Legacy of Destructive Snow Goose Foraging on Supratidal Marsh Habitat in the Hudson Bay Lowlands
Stephen L. Peterson* Ecological succession and climate change are pushing tundra as well as Arctic and subarctic Robert F. Rockwell† lowland plant communities toward increased woody vegetation cover. However, areas Christopher R. Witte† and along the Hudson Bay Lowlands that are over-grazed by hyper-abundant lesser snow geese David N. Koons‡ are experiencing drastic losses of grass, sedge, and ...
متن کاملS04-1 The impact of goose grazing on arctic and temperate wetlands
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 ...
متن کاملبررسی تاثیر تغییرات پوشش و کاربری زمین در قابلیت فرسایش خاک – مطالعه موردی حوضه قرهسو گرگانرود
Investigation about the influence of land-cover and land use changes on soil erodibility potential, case study: Gharesou, Gorganrood Land use and land cover (LUC) change associated with climatic and geomorphologic conditions of the area have an accelerating impact on the land degradation. Natural as well as human-induced land use land cover change (LUCC) has significant impacts on regional soi...
متن کاملکاربرد مدل تلفیقی سلولهای خودکار و زنجیرۀ مارکوف در شبیهسازی الگوی مکانی- زمانی تغییر پوشش جنگلی (مطالعه موردی: شهرستان ملکشاهی - استان ایلام)
In order to optimize the planning and management of natural resources and the environment, it is essential to know the status of land cover changes over the past decades. Modeling land cover change can provide valuable information for better understanding of this process, determining of effective factors and forecasting of regions subject to change. This study aimed to determine and simulate th...
متن کاملNutrient limitation of plant growth and forage quality in Arctic coastal marshes
1 Foraging by geese has led to vegetation loss in salt marshes along the Hudson Bay coast and lesser snow geese are increasingly grazing inland freshwater marshes. We determined whether different nutrients limit the growth of forage plants in the two habitats, and whether these differences affect the nutritional quality of vegetation available to geese at La Pérouse Bay, Manitoba. 2 Results fro...
متن کامل