Vegetation dynamics following resource manipulations in herb-rich woodland

Jodi Nicole Price, John W Morgan

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Changes in species richness, turnover, composition and above-ground biomass of herb-rich woodland were documented following fertilizer application and water addition over three growing seasons. Addition of fertilizer significantly reduced species richness relative to unmanipulated control and water addition plots after 3 years. This change coincided with significant increases in biomass, which were largely due to increased growth of exotic annual grasses. The reductions in richness observed in the fertilized plots were a consequence of both lower rates of local colonization and enhanced rates of local extinction of the resident species. Species loss was not random; native species were lost after nutrient addition whereas exotic species were not. Nutrient limitation was more important for species coexistence in these communities than was water availability.
Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalPlant Ecology
Volume188
Issue number1
DOIs
Publication statusPublished - 2007

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