Vegetation and climate characteristics of and and semi-arid grasslands in North America and their biome transition zone

被引：32

作者：

Hochstrasser, T ^{[1
]}

Kröel-Dulay, G

Peters, DPC

Gosz, JR

机构：

[1] Colorado State Univ, Nat Resource Ecol Lab, Grad Degree Program Ecol, Ft Collins, CO 80522 USA

[2] Colorado State Univ, Dept Rangeland Ecosyst Sci, Ft Collins, CO 80522 USA

[3] Hungarian Acad Sci, Inst Ecol & Bot, H-2163 Vacratot, Hungary

[4] USDA ARS, Jornada Expt Range, NMSU, Las Cruces, NM USA

[5] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA

来源：

JOURNAL OF ARID ENVIRONMENTS | 2002年 / 51卷 / 01期

基金：

美国国家科学基金会;

关键词：

annuals; Chihuahuan desert grasslands; ecotone; perennials; regional analysis; shortgrass steppe; species area curve;

D O I：

10.1006/jare.2001.0929

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The objective of this study was to investigate the relationship among species richness, functional group composition, and climate for three sites representing the shortgrass steppe, the Chihuahuan desert grasslands and their biome transition zone. We found that perennial species richness increased as the climate became more favorable for plant growth. The biome transition zone was more similar to the Chihuahuan desert grassland site in most climate and vegetation characteristics, partly because of the shorter biogeographic distance between the two sites. This study clarified the ecological position of the biome transition zone site with respect to the adjacent biomes. (C) 2002 Elsevier Science Ltd.

引用

页码：55 / 78

页数：24

共 67 条

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