Nassella pulchra survival and water relations depend more on site productivity than on small-scale disturbance

Keith Lombardo, Jeffrey S. Fehmi, Kevin J. Rice, Emilio A. Laca

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

We found no significant effect (p > 0.38) of clipping surrounding non-native annuals on the performance or survival of plantings of the native Nassella pulchra. However, the preplanting productivity of the three sites had a significant effect (p < 0.001) on the demography and water relations of Nassella. Survival was 85% on the lowest productivity site and it decreased by 6% for each additional 100 kg in average aboveground productivity between 2,400 and 3,600 kg/ha. Plants experienced greater water stress in higher productivity sites. Together, these results suggest that the original habitat of N. pulchra may have been in more marginal ecological sites rather than the more fertile soils of the Central Valley.

Original languageEnglish (US)
Pages (from-to)177-178
Number of pages2
JournalRestoration Ecology
Volume15
Issue number2
DOIs
StatePublished - Jun 1 2007

Keywords

  • Ecological
  • Mortality
  • Nassella pulchra
  • Restoration
  • Site fertility

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

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