Comparing shoot population dynamics methods on Posidonia oceanica meadows

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Title: Comparing shoot population dynamics methods on Posidonia oceanica meadows
Authors: González-Correa, José Miguel | Fernández-Torquemada, Yolanda | Sánchez-Lizaso, José Luis
Research Group/s: Biología Marina
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada
Keywords: Mortality rate | Net shoot recruitment rate | Population demography | Posidonia oceanica | Shoot census | Shoot population dynamics
Knowledge Area: Biología Marina
Date Created: 2007
Issue Date: 21-Dec-2007
Publisher: Elsevier
Citation: GONZÁLEZ CORREA, José Miguel; FERNÁNDEZ TORQUEMADA, Yolanda; SÁNCHEZ LIZASO, José Luis. “Comparing shoot population dynamics methods on Posidonia oceanica meadows”. Journal of Experimental Marine Biology and Ecology. Vol. 353, Issue 1 (21 Dec. 2007). ISSN 0022-0981, pp. 115-125
Abstract: Prediction capacity of three main shoot population dynamics methods (age structure, net shoot recruitment per plagiotropic rhizome and shoot census) have been tested for a period of four years (2002–2006) on a Posidonia oceanica meadow. Accuracy of each method was checked by comparing measured and predicted densities at the end of the study period. Predicted densities came from the evolution of initial densities (measured in 2002) by a basic exponential model of population growth. The exponential model used the different net shoot recruitment rate estimates by each population dynamics method on three depths (upper, medium and lower limit) and three localities at each depth. Predictions performed by shoot census and net shoot recruitment per plagiotropic rhizome methods matched with measured densities at the end of the study period. Conversely, age structure method underestimated shoot densities at each depth, indicating an unreal decrease of shoot population in the meadow.
URI: http://hdl.handle.net/10045/11312
ISSN: 0022-0981 (Print) | 1879-1697 (Online)
DOI: 10.1016/j.jembe.2007.09.008
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.jembe.2007.09.008
Appears in Collections:INV - BM - Artículos Científicos / Scientific Papers
INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas

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