Assessment of the forest management of common juniper (Juniperus communis) and Spanish juniper (Juniperus haemispherica)

Aims

The main aim is to gather information for future action to improve the common juniper and Spanish juniper populations based on the calculation of germination and survival rates at four different sites.

Method and effort

For sowing and planting in woodlands, we exclude livestock by fencing and, for new individual plantings, we install individual protectors.

  • For sowing, plots of 40 x 40 cm are used with 25 seeds per sowing unit. The different species, their relative proportion, and planting density vary in each zone according to the degree of development of the action units.
  • For the monitoring of the planting, in each core of each dispersion, a sample of 20 specimens per species and per exclusion technique are selected. Periodically the surviving individuals are recorded.

Periodicity

The survival of each sample was monitored twice yearly, once in spring and again in autumn.

References

García, D., Zamora, R., Hódar, J. A. y Gómez, J. M. 1999. Age structure of Juniperus communis L. in the Iberian Peninsula: Conservation of remnant populations in Mediterranean mountains. Biol. Conserv., 87: 215-220.
García, D. y Zamora, R. 2003. Persistence, multiple demographic strategies and conservation in long-lived Mediterranean plants. J. Veg. Sci., 14: 921-926.
Harris, J. A., Hobbs, R. J., Higgs, E. y Aronson, J. 2006.Ecological restoration and Global Climate Change. Restor. Ecol., 14(2): 170-176.

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