Skip to content

Research at St Andrews

Robust estimates of environmental effects on population vital rates: an integrated capture–recapture model of seasonal brook trout growth, survival and movement in a stream network

Research output: Contribution to journalArticle

DOI

Author(s)

Benjamin Letcher, Paul Schueller, Ronald Bassar, Keith Nislow, Jason Coombs, Krzysztof Sakrejda, Michael Blair Morrissey, Douglas Sigourney, Andrew Whiteley, Matthew O'Donnell, Todd Devreuil

School/Research organisations

Abstract

Modelling the effects of environmental change on populations is a key challenge for ecologists, particularly as the pace of change increases. Currently, modelling efforts are limited by difficulties in establishing robust relationships between environmental drivers and population responses.

We developed an integrated capture–recapture state-space model to estimate the effects of two key environmental drivers (stream flow and temperature) on demographic rates (body growth, movement and survival) using a long-term (11 years), high-resolution (individually tagged, sampled seasonally) data set of brook trout (Salvelinus fontinalis) from four sites in a stream network. Our integrated model provides an effective context within which to estimate environmental driver effects because it takes full advantage of data by estimating (latent) state values for missing observations, because it propagates uncertainty among model components and because it accounts for the major demographic rates and interactions that contribute to annual survival.

We found that stream flow and temperature had strong effects on brook trout demography. Some effects, such as reduction in survival associated with low stream flow and high temperature during the summer season, were consistent across sites and age classes, suggesting that they may serve as robust indicators of vulnerability to environmental change. Other survival effects varied across ages, sites and seasons, indicating that flow and temperature may not be the primary drivers of survival in those cases. Flow and temperature also affected body growth rates; these responses were consistent across sites but differed dramatically between age classes and seasons. Finally, we found that tributary and mainstem sites responded differently to variation in flow and temperature.

Annual survival (combination of survival and body growth across seasons) was insensitive to body growth and was most sensitive to flow (positive) and temperature (negative) in the summer and fall.

These observations, combined with our ability to estimate the occurrence, magnitude and direction of fish movement between these habitat types, indicated that heterogeneity in response may provide a mechanism providing potential resilience to environmental change. Given that the challenges we faced in our study are likely to be common to many intensive data sets, the integrated modelling approach could be generally applicable and useful.
Close

Details

Original languageEnglish
Pages (from-to)337-352
JournalJournal of Animal Ecology
Volume84
Issue number2
Early online date3 Dec 2014
DOIs
Publication statusPublished - Mar 2015

    Research areas

  • Annual survival, Bayesian modelling, Capture–mark–recapture, Integrated model, Movement, Sensitivity, Stream fish, Stream network, Survival

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. The role of selection and evolution in changing parturition date in a red deer population

    Bonnet, T., Morrissey, M. B., Morris, A., Morris, S., Clutton-Brock, T. H., Pemberton, J. M. & Kruuk, L. E. B., 5 Nov 2019, In : PLoS Biology. 17, 11, 23 p., e3000493.

    Research output: Contribution to journalArticle

  2. A note on simulating null distributions for G matrix comparisons

    Morrissey, M. B., Hangartner, S. & Monro, K., 22 Oct 2019, In : Evolution. Early View

    Research output: Contribution to journalArticle

  3. No evidence that warmer temperatures are associated with selection for smaller body sizes

    Siepielski, A. M., Morrissey, M. B., Carlson, S. M., Francis, C. D., Kingsolver, J. G., Whitney, K. D. & Kruuk, L. E. B., 24 Jul 2019, In : Proceedings of the Royal Society B: Biological Sciences. 286, 1907, 10 p., 20191332.

    Research output: Contribution to journalArticle

  4. Natural selection for body shape in resource polymorphic Icelandic Arctic charr

    Franklin, O. D., Skúlason, S., Morrissey, M. B. & Ferguson, M. M., 16 Aug 2018, In : Journal of Evolutionary Biology. Early View, 15 p.

    Research output: Contribution to journalArticle

  5. Quantification and decomposition of environment-selection relationships

    Hunter, D. C., Pemberton, J., Pilkington, J. & Morrissey, M. B., Apr 2018, In : Evolution. 72, 4, p. 851-866

    Research output: Contribution to journalArticle

Related by journal

  1. A fruit diet rather than invertebrate diet maintains a robust innate immunity in an omnivorous tropical songbird

    Nwaogu, C. J., Galema, A., Cresswell, W., Dietz, M. W. & Tieleman, B. I., 4 Nov 2019, (Accepted/In press) In : Journal of Animal Ecology. In press

    Research output: Contribution to journalArticle

  2. Environment-sensitive mass changes influence breeding in a capital breeding marine top predator

    Smout, S. C., King, R. & Pomeroy, P., 20 Nov 2019, In : Journal of Animal Ecology. Early View, 13 p.

    Research output: Contribution to journalArticle

  3. Optimizing the use of biologgers for movement ecology research

    Williams, H., Taylor, L., Benhamou, S., Bijleveld, A., Clay, T., de Grissac, S., Demsar, U., English, H., Franconi, N., Gómez-Laich, A., Griffiths, R., Kay, W., Morales, J. M., Potts, J., Rogerson, K., Rutz, C., Spelt, A., Trevail, A., Wilson, R. & Börger, L., 1 Oct 2019, In : Journal of Animal Ecology. Early View

    Research output: Contribution to journalArticle

  4. Seasonal differences in baseline innate immune function are better explained by environment than annual cycle stage in a year-round breeding tropical songbird

    Nwaogu, C. J., Cresswell, W., Versteegh, M. A. & Tieleman, B. I., 8 Apr 2019, In : Journal of Animal Ecology. 88, 4, p. 537-553 17 p.

    Research output: Contribution to journalArticle

  5. Sexual signal loss: the link between behaviour and rapid evolutionary dynamics in a field cricket

    Zuk, M., Bailey, N. W., Gray, B. & Rotenberry, J. T., 5 Mar 2018, In : Journal of Animal Ecology. Early View

    Research output: Contribution to journalArticle

ID: 159493174

Top