EFFECTS OF GOOSE GRAZING ON THE QUALITY OF SCIRPUS-AMERICANUS RHIZOMES

被引：10

作者：

BELANGER, L ^{[1
]}

GIROUX, JF ^{[1
]}

BEDARD, J ^{[1
]}

机构：

[1] UNIV LAVAL,DEPT BIOL,ST FOY G1K 7P4,QUEBEC,CANADA

来源：

CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE | 1990年 / 68卷 / 05期

关键词：

D O I：

10.1139/z90-146

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Investigated whether repeated intensive grazing of rhizomes of three-square bulrush by greater snow geese Chen caerulescens atlantica staging in a tidal brackish marsh along the St Lawrence River in Quebec can induce changes in the nutritional value and structural characteristics of the rhizomes. The belowground standing crop of S. americanus was greater in ungrazed than in grazed plots, but no difference was observed in the nutritional constituents (N and fiber) of rhizomes between the 2 types of plot. S. americanus did not increase the deposition of phenolics (chemical defense) in its rhizomes following grazing. Goose grubbing thus decreases quantity without affecting quality of S. americanus rhizomes. -from Authors

引用

页码：1012 / 1014

页数：3

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