Spatial pattern and neighbour effects on Helianthemum squamatum seedlings in a Mediterranean gypsum community

Escudero, Adrián and Romao, Roberto L. and Cruz Rot, Marcelino de la and Maestre, Fernando T. (2005). Spatial pattern and neighbour effects on Helianthemum squamatum seedlings in a Mediterranean gypsum community. "Journal of Vegetation Science", v. 16 ; pp. 383-390. ISSN 1654-1103. https://doi.org/10.1111/j.1654-1103.2005.tb02377.x.

Description

Title: Spatial pattern and neighbour effects on Helianthemum squamatum seedlings in a Mediterranean gypsum community
Author/s:
  • Escudero, Adrián
  • Romao, Roberto L.
  • Cruz Rot, Marcelino de la
  • Maestre, Fernando T.
Item Type: Article
Título de Revista/Publicación: Journal of Vegetation Science
Date: 2005
ISSN: 1654-1103
Volume: 16
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Biología Vegetal [hasta 2014]
Creative Commons Licenses: None

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Abstract

Question: Do, in a semi-arid gypsum environment, neighbours condition the spatial patterns of emergence, survival and height of Helianthemum squamatum seedlings ? Location: Vicinity of Chinchón, province of Madrid, Spain (40°11'N, 3° 35'W, 550 m a.s.l.) Methods: We evaluated the effects of neighbours on the survival and growth of naturally emerging Helianthemum seedlings in a semi-arid area during a two-year period. We followed a two-fold approach based on the use of neighbour models for seedling survival and growth and spatial point pattern analyses for seedling emergence, taking into account the germination date. Results: Seedlings appeared clumped in the vicinity of mature Helianthemum individuals. The neighbour models fitted showed that interactions with neighbours were extremely important for the survival and growth of Helianthemum seedlings. These models also suggest that the effects of neighbours on these variables vary with changes in spatial scale and in the abiotic conditions. Some species exerted negative or positive effects on Helianthemum seedlings only at certain spatial scales, and others exerted negative or positive effects at earlier stages of seedling development, but none later and vice versa. Conclusions: We suggest that the observed patterns are mainly influenced by small-scale modifications in soil conditions and microclimate created by neighbours, which change in time and space.

More information

Item ID: 2518
DC Identifier: http://oa.upm.es/2518/
OAI Identifier: oai:oa.upm.es:2518
DOI: 10.1111/j.1654-1103.2005.tb02377.x
Official URL: http://www3.interscience.wiley.com/journal/121642345/home
Deposited by: PTU Marcelino De la Cruz Rot
Deposited on: 11 Mar 2010 10:12
Last Modified: 20 Apr 2016 12:11
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