Responses of arctic sedges to release from grazing: leaf elongation in two species of Carex

摘要: We have used demographic methods to determine whether increased rates of leaf elongation occur in two sedges, Carex subspathacea Wormsk. and × flavicans Nyl., when heavily grazed by Lesser Snow Geese (Chen caerulescens (L.)) at La Perouse Bay, Manitoba. Rates leaves declined as aged. Most comparisons between ungrazed plots indicated that shoots were not significantly greater than corresponding for shoots. No trends evident. As reported elsewhere, production turnover accounted most the regeneration photosynthetic area following grazing both species.