Marmot disturbances in a Mongolian steppe vegetation

被引：40

作者：

Van Staalduinen, M. A. ^{[1
]}

Werger, M. J. A. ^{[1
]}

机构：

[1] Univ Utrecht, Dept Plant Ecol, NL-3508 TB Utrecht, Netherlands

来源：

JOURNAL OF ARID ENVIRONMENTS | 2007年 / 69卷 / 02期

关键词：

burrowing activity; forage quality; nutrient concentration; rodent; species composition; succession; PLANT-SPECIES DIVERSITY; MIXED-GRASS PRAIRIE; DESERT; BIOMASS;

D O I：

10.1016/j.jaridenv.2006.08.002

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

We conducted a study in Mongolia on the Stipa steppe, which is the main habitat for the Siberian marmot (Marmota sibirica). The marmots create mounds that differ greatly in vegetation cover. Three types of mounds were distinguished, depending on the species dominating the vegetation on the mounds: an Artemisia type of mound, Leymus type and a Stipa type. It is hypothesized that the three types of mound represent a series of succession. The activities of the marmots lead to enhanced forage quality on the Artemisia and Leymus types of mound, as indicated by increased nitrogen concentrations in the on-mound vegetation. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：344 / 351

页数：8

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