Demography of Bromus Tectorum in Artemisia Communities
作者： James A. Young , Raymond A. Evans
DOI: 10.1007/978-94-009-5500-4_20
关键词: Population 、 Life history 、 Population size 、 Biology 、 Artemisia 、 Vegetation 、 Bromus tectorum 、 Perennial plant 、 Ecology
摘要: Bromus tectorum has successfully invaded sagebrush (Artemisia) grasslands in western North America within the past century. The population dynamics of this species under drought conditions and during relatively wet seasons are described. Persistence populations is ensured by means dormant seed reserves soil. a flexible life history though it typically behaves as winter annual. frequency intensity natural wildfires regulates its size, but can recover rapidly after fire quickly dominate vegetation high vegetative vigor reproductive output. genetic consequences large fluctuations size which follow considered.
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