Spatial population dynamics of a marine organism with a complex life cycle

Possingham, Hugh P. and Roughgarden, Jonathan (1990) Spatial population dynamics of a marine organism with a complex life cycle. Ecology, 71 3: 973-985. doi:10.2307/1937366

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Author Possingham, Hugh P.
Roughgarden, Jonathan
Title Spatial population dynamics of a marine organism with a complex life cycle
Journal name Ecology   Check publisher's open access policy
ISSN 0012-9658
1939-9170
Publication date 1990-06-01
Sub-type Article (original research)
DOI 10.2307/1937366
Open Access Status File (Publisher version)
Volume 71
Issue 3
Start page 973
End page 985
Total pages 13
Place of publication Washington, DC, United States
Publisher Ecological Society of America
Language eng
Abstract This paper presents a modeling framework within which mesoscale features in ocean currents can be integrated with coastal habitat stucture to predict the distribution and abundance of a a marine organism with a coastal adult phase and a pelagic larval phase. The processes in the model that influence larvae away from shore are advection, diffusion and mortality; the processes influencing larvae adjacent to the coast are settlement and reproduction by adults. The adults on the coast are influenced by recruitment, mortality, and the availability of suitable habitat. Larvae are passive particles in the ocean whose movement is modeled with a transport equation. The water column is represented by a two-dimensional plane and the coast by a straight line. Age-integrated biological parameters for the barnacle Balanus glandula are used in numerical examples. A one-dimensional model illustrates the interaction of eddy-diffusion and larval mortality in determining larval wastage that, in turn, affects whether a species can persist. In a two-dimensional model (solved using finite difference techniques) the persistence of a population also depends on the length of suitable habitat, the strength and structure of the along-shore flow field, and biological parameters of the species concerned. Initial conditions may have a large influence on the growth and spread of population, especially in the presence of along-shore flow.
Keyword along-shore flow
diffusion
finite difference methods
Balanus glandula
habitat structure
intertidal zone
pelagic larvae
population dynamics
recruitment
sessile adult
space-limited
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Originally published as Possingham, Hugh P. and Roughgarden, Jonathan (1990) Spatial Population Dynamics of a Marine Organism with a Complex Life Cycle, Ecology, 71 (3): 973-985. Copyright 1990 The Ecological Society of America.

Document type: Journal Article
Sub-type: Article (original research)
Collections: AEDA Publications
Spatial Ecology Lab Publications
Ecology Centre Publications
 
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Created: Thu, 13 Jan 2005, 10:00:00 EST by Hugh P. Possingham on behalf of Scholarly Communication and Digitisation Service