Search Results - "Gurney, William S. C"

Population Persistence in Rivers and Estuaries by Speirs, Douglas C., William S. C. Gurney

“…A wide variety of organisms inhabit streams, rivers, and estuaries where they are continually subjected to downstream drift. It is well known that when this is…”
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Formulating and testing a partially specified dynamic energy budget model by Nisbet, R.M, McCauley, E, Gurney, W.S.C, Murdoch, W.W, Wood, S.N

“…Dynamic energy budget models relate phenomena at many levels of ecological organization and can provide quantitative links from individual physiology to…”
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Sea-Age Variation in Maiden Atlantic Salmon Spawners: Phenotypic Plasticity or Genetic Polymorphism? by Gurney, William S. C., Bacon, Philip J., Speirs, Douglas C., McGinnity, Philip, Verspoor, Eric

“…Atlantic salmon exhibit a partially heritable polymorphism in which the morphs are distinguished by the duration and location of the sea-phase of their…”
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Maturity Dispersion, Stock Auto-Correlation, and Management Strategy in Exploited Populations by Gurney, William S. C, McKenzie, Eddie, Bacon, Philip J

“…Fishery management policies need to be based on historical summaries of stock status which are well correlated with the size of the group of individuals who…”
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Patch dynamics in a landscape modified by ecosystem engineers by Wright, Justin P., Gurney, William S. C., Jones, Clive G.

“…Ecosystem engineers, organisms that modify the environment, have the potential to dramatically alter ecosystem structure and function at large spatial scales…”
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Ocean-scale modelling of the distribution, abundance, and seasonal dynamics of the copepod Calanus finmarchicus by SPEIRS, Douglas C, GURNEY, William S. C, HEATH, Michael R, HORBELT, Werner, WOOD, Simon N, DE CUEVAS, Beverly A

“…The copepod Calanus finmarchicus is widely distributed over the sub-polar Atlantic and dominates the mesozooplanktonic biomass in that region. Despite this,…”
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Stochastic growth reduces population fluctuations in Daphnia-–algal systems by Ananthasubramaniam, Bharath, Nisbet, Roger M., Nelson, William A., McCauley, Edward, Gurney, William S. C.

“…Deterministic, size-structured models are widely used to describe consumer-–resource interactions. Such models typically ignore potentially large random…”
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Simulating Spatially and Physiologically Structured Populations by William S. C. Gurney, Speirs, Douglas C., Wood, Simon N., Clarke, Elizabeth D., Heath, Michael R.

“…1. Population dynamics are frequently the product of a subtle interplay between development and dispersal in an inhomogeneous environment. Simulations of…”
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Large-amplitude cycles of Daphnia and its algal prey in enriched environments by McCauley, Edward, Nisbet, Roger M, Murdoch, William W, de Roos, Andre M, Gurney, William S. C

“…Ecological theory predicts that stable populations should yield to large-amplitude cycles in richer environments. This does not occur in nature. The…”
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Resource Allocation, Hyperphagia, and Compensatory Growth in Juveniles by William S. C. Gurney, Jones, Wayne, Veitch, A. Roy, Nisbet, Roger M.

“…Many organisms exploit highly variable food supplies and, as an adaptation to such conditions, show elevated growth during recovery from starvation. In some…”
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The dynamics of size-at-age variability by Gurney, William S C, Veitch, A Roy

“…In this paper, we propose a theoretical framework within which a unified treatment of the key sources of size-at-age variability-size dependence of growth…”
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Smooth age length keys: Observations and implications for data collection on North Sea haddock by Stari, Traiani, Preedy, Katharine F., McKenzie, Eddie, Gurney, William S.C., Heath, Michael R., Kunzlik, Philip A., Speirs, Douglas C.

“…Age at length keys (ALKs), which give the probability of age given length, are a fundamental component of many age-based fish stock assessment methods…”
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Seasonal Patterns of Growth, Expenditure and Assimilation in Juvenile Atlantic Salmon by Jones, Wayne, William S. C. Gurney, Speirs, Douglas C., Bacon, Philip J., Youngson, Alan F.

“…1. We report a modelling study of a data-set describing the growth of individual Atlantic salmon (Salmo salar L.) parr in the Girnock Burn (Scotland). A…”
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Combination of genetics and spatial modelling highlights the sensitivity of cod (Gadus morhua) population diversity in the North Sea to distributions of fishing by Heath, Michael R., Culling, Mark A., Crozier, Walter W., Fox, Clive J., Gurney, William S. C., Hutchinson, William F., Nielsen, Einar E., O'Sullivan, Martha, Preedy, Katharine F., Righton, David A., Speirs, Douglas C., Taylor, Martin I., Wright, Peter J., Carvalho, Gary R.

“…Conserving genetic diversity in animal populations is important for sustaining their ability to respond to environmental change. However, the…”
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Understanding demography in an advective environment: modelling Calanus finmarchicus in the Norwegian Sea by SPEIRS, DOUGLAS C., GURNEY, WILLIAM S. C., HOLMES, STEVEN J., HEATH, MICHAEL R., WOOD, SIMON N., CLARKE, ELIZABETH D., HARMS, INGO H., HIRCHE, HANS‐JURGEN, McKENZIE, EDDIE

“…Summary 1 Attempts to understand the demography of natural populations from time‐series can be hampered by the fact that changes due to births and deaths may…”
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Structured Population Models of Herbivorous Zooplankton by McCauley, Edward, Nisbet, Roger M., De Roos, Andre M., Murdoch, William W., William S. C. Gurney

“…In this paper, we investigate whether a stage-structured population model can explain major features of dynamics of the herbivores Daphnia galeata and Bosmina…”
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Modeling the demographic effects of endocrine disruptors by Gurney, William S C

“…In this article we describe a series of strategic models of populations and individuals subject to challenge by endocrine disruptors. These models are not…”
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Physiological Ecology of Daphnia: Development of a Model of Growth and Reproduction by McCauley, Edward, Murdoch, William W., Nisbet, Roger M., William S. C. Gurney

“…Patterns of growth, development, and reproduction have been observed in many Daphnia species, and there have been some attempts to explain them using models…”
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Objective determination of the sea age of Atlantic salmon from the sizes and dates of capture of individual fish by Bacon, Philip J, Gurney, William SC, McKenzie, Eddie, Whyte, Bryce, Campbell, Ronald, Laughton, Robert, Smith, Gordon, MacLean, Julian

“…Bacon, P. J., Gurney, W. S. C., McKenzie, E., Whyte, B., Campbell, R., Laughton, R., Smith, G., and MacLean, J. 2011. Objective determination of the sea age of…”
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Large-amplitude cycles of Daphnia and its algal prey in enriched environments by MCCAULEY, E, NISBE, R. M, MURDOCH, W. W, DE ROOS, A. M, GURNEY, W. S. C

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