Modelling fish spatial dynamics and local density-dependence relationships: detection of patterns at a global scale
TL;DR: In this article, a model is used to explore whether local density-dependent recruitment relationships can be observed when considering a larger scale, where a virtual population of spawners is tracked within an artificial environment composed of cells.
About: This article is published in Aquatic Living Resources.The article was published on 1998-09-01 and is currently open access. It has received 11 citations till now. The article focuses on the topics: Population.
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TL;DR: This work considers modelling and other applications, including the role of nearest neighbourhood in experimental design, the representation of connectivity in maps, and a new method for performing field surveys using hexagonal grids, which was demonstrated on montane heath vegetation.
385 citations
Book•
01 Jan 2002
TL;DR: The Human Dimension of Fisheries Science: (P. J. Reynolds, N. Dulvy And C. Roberts) uncovers the human dimension of fisheries science as well as the science and management of fisheries, and some of the aspects of management and ecology that have changed over time.
Abstract: Volume 1: Fish Biology. 1. Banishing Ignorance: Underpinning Fisheries with Basic Biology (P. J. B. Hart and J. D. Reynolds). 2. Phylogeny and Systematics of Fishes (A. C. Gill and R.D. Mooi). 3. Historical Biogeography of Fishes (R. D. Mooi and A. C. Gill). 4. The Physiology of Living in Water (O. Brix). 5. Environmental Factors and Rates of Development and Growth (M. Jobling). 6. Recruitment: Understanding Density--dependence in Fish Populations (R. A. Myers). 7. Life Histories of Fish (J. A. Hutchings). 8. Migration (J. Metcalfe, G. Arnold and R. McDowall). 9. Genetics of Fish Populations (R. D. Ward). 10. Behavioural Ecology of Reproduction in Fish (E. Forsgren, J. D. Reynolds and A. Berglund). 11. Fish Foraging and Habitat Choice: A Theoretical Perspective (G. G. Mittelbach). 12. Feeding Ecology of Piscivorous Fishes (F. Juanes, J. A. Buckel and F. S. Scharf). 13. Fish as Prey (J. Krause, E. M. A. Hensor and G. D. Ruxton). 14. Trophic Ecology and the Structure of Marine Food Webs (N. V.C. Polunin and J.K. Pinnegar). 15. Community Ecology of Freshwater Fishes (L. Persson). 16. Comparative Ecology of Marine Fish Communities (K. Martha M. Jones, D. G. Fitzgerald and P. F. Sale). 17. Interactions Between Fish, Parasites and Disease (I. Barber and R. Poulin). Volume 2: Fisheries. 1. The Human Dimension Of Fisheries Science: (P. J. B. Hart And J. D. Reynolds). 2. Fish Capture Devices In Industrial And Artisanal Fisheries And Their Influence On Management (O. A. Misund, J. Kolding and P. Freon). 3. Marketing Fish (J. A. Young And J. F. Muir). 4. A History Of Fisheries And Their Science And Management (T. D. Smith). 5. Gathering Data For Resource Monitoring And Fisheries Management (D. Evans and R. Grainger). 6. Surplus Production Models (J. T. Schnute And L. Richards). 7. Dynamic Pool Models I: Interpreting The Past Using Virtual Population Analysis (J. G. Shepherd And J. G. Pope). 8. Dynamic Pool Models II: Short--Term And Long--Term Forecasts Of Catch And Biomass (J. G. Shepherd And J. G. Pope). 9. A Bumpy Old Road: Size--Based Methods In Fisheries Assessment (T. J. Pitcher). 10. Ecosystem Models (D. Pauly And V. Christensen). 11. Individual--Based Models (G. Huse, J. Giske And A. G. V. Salvanes). 12. The Economics Of Fisheries (R. Hannesson). 13. Choosing The Best Model For Fisheries Assessment (P. Sparre And P. J. B. Hart). 14. Marine Protected Areas, Fish And Fisheries (N. V. C. Polunin). 15. Exploitation And Other Threats To Fish Conservation (J. D. Reynolds, N. K. Dulvy And C. M. Roberts). 16. Ecosystem Effects Of Fishing (M. J. Kaiser And S. Jennings). 17. Recreational Fishing (I. G. Cowx)
244 citations
TL;DR: This work presents the individual-based model Piscator, which describes a multi-species fish community and demonstrates techniques to deal with the inherent complexity of such a model, and proposes a novel procedure for calibration and analysis, in which the complexity of the model is increased step-by-step.
47 citations
TL;DR: Two individual-based models for the movement of elvers in the French river ‘Adour’ are built and a set of stochastic differential equations and a partial differential equation for the elvers’ density are rigorously obtained.
25 citations
References
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TL;DR: I develop models of metapopulation dynamics that describe changes in the numbers of individuals within patches, analogous to structured population models, with patches playing the role of individuals.
Abstract: I develop models of metapopulation dynamics that describe changes in the numbers of individuals within patches. These models are analogous to structured population models, with patches playing the role of individuals. Single species models which do not include the effect of immigration on local population dynamics of occupied patches typically lead to a unique equilibrium. The models can be used to study the distributions of numbers of individuals among patches, showing that both metapopulations with local outbreaks and metapopulations without outbreaks can occur in systems with no underlying environmental variability. Distributions of local population sizes (in occupied patches) can vary independently of the total population size, so both patterns of distributions of local population sizes are compatible with either rare or common species. Models which include the effect of immigration on local population dynamics can lead to two positive equilibria, one stable and one unstable, the latter representing a threshold between regional extinction and persistence.
107 citations
TL;DR: It is concluded that for general single-species and two-species competition models, the introduction of the spatial dimension in a biologically sensible way has no effect on the overall stability properties.
96 citations
TL;DR: In this article, the authors analyse metapopulation dynamics of single species and asymmetric competitors with models in which the equilibrium size of local populations is affected both by local processes and by migration.
94 citations
TL;DR: Three widely used species interaction models, the Nicholson-Bailey and Hassell-Varley host-parasite models and the Lotka-Volterra predator-prey model, are extended into space as well as time and stability analysis suggests that space-time models having symmetric dispersal are no more stable near equilibrium than the simple time models upon which they are based.
Abstract: Three widely used species interaction models, the Nicholson-Bailey and Hassell-Varley host-parasite models and the Lotka-Volterra predator-prey model, are extended into space as well as time. One type of equilibrium having the same number of individuals at all locations is shown to exist analytically for the "symmetric dispersal" case. Another kind of equilibrium having different numbers of individuals at different locations in two-dimensional space is demonstrated by simulation. Stability analysis suggests that space-time models having symmetric dispersal are no more stable near equilibrium than the simple time models upon which they are based. In many situations the space-time models are less stable than the simple time models. This result can be reconciled with the experimental literature if one assumes a "stochastic persistence" effect which predicts that expected extinction time will increase with the number of independent subpopulations.
84 citations
TL;DR: The spatiotemporal behaviour of a two-species competition coupled map lattice is explored and the coexistence of the two competitors is demonstrated although they have high interspecific competition coefficients.
76 citations