Release of Juniperus thurifera woodlands from herbivore-mediated arrested succession in Spain

Soto, Lucia de; Olano, José Miguel; Rozas, Vicente y Cruz Rot, Marcelino de la (2010). Release of Juniperus thurifera woodlands from herbivore-mediated arrested succession in Spain. "Applied Vegetation Science", v. 13 (n. 1); pp. 15-25. https://doi.org/10.1111/j.1654-109X.2009.01045.x.

Descripción

Título: Release of Juniperus thurifera woodlands from herbivore-mediated arrested succession in Spain
Autor/es:
  • Soto, Lucia de
  • Olano, José Miguel
  • Rozas, Vicente
  • Cruz Rot, Marcelino de la
Tipo de Documento: Artículo
Título de Revista/Publicación: Applied Vegetation Science
Fecha: Febrero 2010
Volumen: 13
Materias:
Escuela: E.U.I.T. Agrícolas (UPM)
Departamento: Biología Vegetal [hasta 2014]
Licencias Creative Commons: Ninguna

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Resumen

Question: Do abiotic constraints maintain monospecific woodlands of Juniperus thurifera? What is the role of biotic (livestock) versus abiotic (climate) drivers in the recruitment and growth of the different tree species? Location: Cabrejas range, Soria, north-central Spain, 1200m altitude. Methods: Stand history was reconstructed using dendroecology and spatial pattern analysis, combined with historical data of livestock abundances and climatic records. Results: J. thurifera establishment occurred in two distinct pulses, with a tree component establishing in the late 1800s to early 1900s. Quercus ilex and Pinus sylvestris establishment was evident only from the late 1970s onward. Recruitment events were related to reductions in livestock browsing. J. thurifera spatial structure was clumped and Q. ilex showed a short-scale aggregation to J. thurifera trees and saplings. Radial growth trends of J. thurifera saplings, Q. ilex and P. sylvestris were negatively related to livestock density. Summer drought limited the radial growth of all the study species, and P. sylvestris and Q. ilex grew faster than J. thurifera even after considering an age effect. Conclusions: The differences in radial growth patterns and recruitment pulses between species indicate that livestock browsing and not abiotic factors is the main factor controlling plant succession and structural development. In this process, J. thurifera acts as a nurse plant, facilitating the establishment of other tree species. Under the current low pressure from herbivores, formerly pure J. thurifera woodlands will change towards dense stands of mixed species composition.

Más información

ID de Registro: 2463
Identificador DC: http://oa.upm.es/2463/
Identificador OAI: oai:oa.upm.es:2463
Identificador DOI: 10.1111/j.1654-109X.2009.01045.x
URL Oficial: http://www3.interscience.wiley.com/journal/122498401/abstract
Depositado por: PTU Marcelino De la Cruz Rot
Depositado el: 04 Mar 2010 08:36
Ultima Modificación: 20 Abr 2016 12:09
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