Study

Livestock impact on dynamic and structure of tropical dry forest of the Sierra de Manantlán, Mexico

  • Published source details Montero-Solís F.M., Sánchez-Velásquez L.R., del R.P.M., Martínez-Rivera L.M., Moermond T. & Aguirre J.C. (2006) Livestock impact on dynamic and structure of tropical dry forest of the Sierra de Manantlán, Mexico. JOURNAL OF FOOD AGRICULTURE AND ENVIRONMENT, 4, 266

Actions

This study is summarised as evidence for the following.

Action Category

Use wire fences within grazing areas to exclude livestock from specific forest sections

Action Link
Forest Conservation

Thin trees within forests: effects on understory plants

Action Link
Forest Conservation
  1. Use wire fences within grazing areas to exclude livestock from specific forest sections

    A replicated, randomized, controlled study in 1997-2001 in tropical dry forest in Mexico (Montero-Solís et al. 2006) found that cattle exclusion increased trees density and diversity but not species richness. The total number of woody trees taller than 1.3 m was higher in fenced (650) than in grazed plots (450), the same was true for species diversity (Shannon's index fenced: 1.23; grazed: 0.60). The total number of species was similar between treatments (fenced: 44; grazed: 39). Data were collected in 2001 in eight fenced (with barbwire in 1997) and eight grazed plots (12 × 12 m).

     

  2. Thin trees within forests: effects on understory plants

    A replicated, controlled study in 1992-2004 in Ponderosa pine Pinus ponderosa forest in Arizona, USA (Montero-Solís et al. 2006) found that thinning increased herbaceous biomass. Herbaceous biomass (kg/ha) was higher in thinned (270-280) than in unthinned plots (~10). Data were collected in 2004 in four circular subplots (2.5 m radius) in each of 10 thinned (thinned from below in 1993, retaining trees 40.6 cm DBH) treatment plots (0.2-0.3 ha), and in three subplots in each of five unthinned treatment plots (total of 55 subplots).

     

Output references

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