Can seed production and restricted dispersal limit recruitment in Pinus pinaster Aiton from the Spanish Northern Plateau?

Juez, Libertad and González-Martínez, Santiago and Nanos, Nikolaos and Lucas, Ana I. de and Ordóñez, Cristóbal and Peso, Carlos del and Bravo, Felipe (2014). Can seed production and restricted dispersal limit recruitment in Pinus pinaster Aiton from the Spanish Northern Plateau?. "Forest Ecology and Management", v. 313 ; pp. 329-339. ISSN 0378-1127. https://doi.org/10.1016/j.foreco.2013.10.033.

Description

Title: Can seed production and restricted dispersal limit recruitment in Pinus pinaster Aiton from the Spanish Northern Plateau?
Author/s:
  • Juez, Libertad
  • González-Martínez, Santiago
  • Nanos, Nikolaos
  • Lucas, Ana I. de
  • Ordóñez, Cristóbal
  • Peso, Carlos del
  • Bravo, Felipe
Item Type: Article
Título de Revista/Publicación: Forest Ecology and Management
Date: 2014
ISSN: 0378-1127
Volume: 313
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Sistemas y Recursos Naturales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Natural regeneration faces increasing difficulties in dry forests from the Mediterranean basin, including for normally well-regenerating species such as maritime pine (Pinus pinaster Aiton). In this paper, we studied female fertility, seed dispersal and spread rates in P. pinaster from the Spanish Northern Plateau, where natural regeneration failure is a main concern for forest managers. For this purpose we periodically collected data from seed traps and trees located at two core locations across several years. We found significant variation in interannual cone production, with the best seed trees being the same across years. In addition, we found highly skewed distributions of female reproductive effort and large fertility differences across stands located few kilometres away. Annual seed dispersal kernels fitted lognormal or 2Dt models depending on the stand analysed, with median dispersal distances between 14 and 25 m. Kernels fitted for maximum dispersal periods showed an outstanding intraseasonal variation of median dispersal distances, from 10 to 54 m, in association to variable patterns of rainfall and maximum wind speed. The amount of seed produced appeared to be enough to guarantee the natural regeneration of the stands during the typical 20-year regeneration period. Colonisation simulations concluded that Mediterranean maritime pine has a notable dispersion capacity, which is strongly influenced by levels of fecundity and, especially, by the number and frequency of long-distance dispersal events. The latter play a key role in tree dispersion processes through enlarging the occupied area and fostering the invasion of abandoned crop land.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainAGL2005-07440-C02-01/FORUnspecifiedUnspecifiedUnspecified
Government of SpainAGL2007-65795-C02-01UnspecifiedUnspecifiedUnspecified
Government of SpainCC03-048UnspecifiedUnspecifiedUnspecified
Government of SpainAEG06-054UnspecifiedUnspecifiedUnspecified

More information

Item ID: 35426
DC Identifier: http://oa.upm.es/35426/
OAI Identifier: oai:oa.upm.es:35426
DOI: 10.1016/j.foreco.2013.10.033
Deposited by: Memoria Investigacion
Deposited on: 28 May 2015 06:40
Last Modified: 08 May 2019 10:52
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