Study

Differential diameter-size effects of forest management on tree species richness and community structure: implications for conservation

  • Published source details Gutiérrez-Granados G., Pérez-Salicrup D.R. & Dirzo R. (2011) Differential diameter-size effects of forest management on tree species richness and community structure: implications for conservation. Biodiversity and Conservation, 20, 1571-1585

Actions

This study is summarised as evidence for the following.

Action Category

Log/remove trees within forests: effects on mature trees

Action Link
Forest Conservation
  1. Log/remove trees within forests: effects on mature trees

    A paired-site study in 1996-2006 in tropical moist forest in Mexico (Gutiérrez-Granados, Pérez-Salicrup & Dirzo 2011) found that logging decreased tree species richness and diversity. The number of tree species/0.1 ha was higher in unlogged than in logged sites for trees 1-5, 5-10 and 10-25 cm diameter at breast height (268 vs 160, 156 vs 114 and 146 vs 116 respectively) but similar for trees >25 cm (54 vs 41). Species diversity (Shannon's index) was higher in unlogged than in logged sites for trees 1-5 cm diameter at breast height (3.4 vs 2.6) but similar for trees 5-10, 10-25 and >25 cm (2.7 vs 2.3, 2.6 vs 2.4 and 2.3 vs 2.1 respectively). Two pairs of logged (in 1996) and unlogged areas were located at each of three forest sites. Sampling was in 2006 in ten 50 × 20 m transects (total of 0.1 ha) in each of the six logged and six unlogged areas.

     

Output references

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