Document


Title

Species diversity after prescribed burns at different intensities and seasons in a high altitude Pinus hartwegii forest
Document Type: Journal
Author(s): H. C. Martinez-Hernandez ; D. A. Rodríguez-Trejo
Publication Year: 2008

Cataloging Information

Keyword(s):
  • crowns
  • ecosystem dynamics
  • fine fuels
  • fire dependent species
  • fire exclusion
  • fire intensity
  • fire management
  • flame length
  • forbs
  • forest fires
  • forest management
  • grasses
  • herbaceous vegetation
  • integrated fire management
  • low intensity burns
  • Mexico
  • Mexico
  • pine forests
  • Pinus hartwegii
  • population density
  • rate of spread
  • sampling
  • season of fire
  • shrubs
  • species diversity
  • species diversity (plants)
  • understory vegetation
  • vegetation surveys
  • wildfires
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 48187
Tall Timbers Record Number: 24265
TTRS Location Status: In-file
TTRS Call Number: Fire File
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

In the Ajusco volcano, in Central Mexico, prescribed burnings of low and high intensity were applied in March and May 2002, along with one unburned control for March and another for May, considering conditions of open stands and closed stands, with the objective of evaluating, the vegetation response of the Pinus hartwegii understory. Samplings were conducted every three months during one year. Number of herb and shrub species, density, covering, and frequency were recorded, and the Simpson diversity index was calculated. According to a principal component analysis, the March prescribed burnings of low and high intensity in open stands separate from the other treatments. The t test showed that the March low intensity burns in open stands yielded a higher Spring-diversity than the unburned control. For the shrub species diversity, the March and May high intensity burns in open stands formed a separated group. A c2 test revealed the species that appear preferably in burned areas. The results indicate that the use of prescribed burnings no later than March favor the richness and diversity of species of the understory.

Citation:
Martinez-Hernandez, H. C., and D. A. Rodriguez-Trejo. 2008. Species diversity after prescribed burns at different intensities and seasons in a high altitude Pinus hartwegii forest. Interciencia, v. 33, no. 5, p. 337-344.