• Age-dependent patterns of spatial autocorrelation in fish populations 

      Marquez, Jonatan; Sæther, Bernt-Erik; Aanes, Sondre; Engen, Steinar; Salthaug, Are; Lee, Aline Magdalena (Journal article; Peer reviewed, 2021)
      The degree of spatial autocorrelation in population fluctuations increases with dispersal and geographical covariation in the environment, and decreases with strength of density dependence. Because the effects of these ...
    • An integrated population model for a long-lived ungulate: more efficient data use with Bayesian methods 

      Lee, Aline Magdalena; Bjørkvoll, Eirin Marie; Hansen, Brage Bremset; Albon, Steve D.; Stien, Audun; Sæther, Bernt-Erik; Engen, Steinar; Veiberg, Vebjørn; Loe, Leif Egil; Grøtan, Vidar (Journal article, 2015)
      We develop an integrated population model for Svalbard reindeer Rangifer tarandus platyrhynchus, and demonstrate how this type of model can be used to extract more information from the data and separate different sources ...
    • Contrasting effects of summer and winter warming onbody mass explain population dynamics in a food-limitedArctic herbivore 

      Albon, Steve D.; Irvine, R. Justin; Halvorsen, Odd; Langvatn, Rolf; Loe, Leif Egil; Ropstad, Erik; Veiberg, Vebjørn; van der Wal, René; Bjørkvoll, Eirin Marie; Duff, Elizabeth I.; Hansen, Brage Bremset; Lee, Aline Magdalena; Tveraa, Torkild; Stien, Audun (Journal article; Peer reviewed, 2016)
      The cumulative effects of climate warming on herbivore vital rates and population dynamics are hard to predict, given that the expected effects differ between seasons. In the Arctic, warmer summers enhance plant growth ...
    • Decomposing demographic contributions to the effective population size with moose as a case study 

      Lee, Aline Magdalena; Myhre, Ane Marlene; Markussen, Stine Svalheim; Engen, Steinar; Solberg, Erling Johan; Haanes, Hallvard; Røed, Knut; Herfindal, Ivar; Heim, Morten; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2020)
      Levels of random genetic drift are influenced by demographic factors, such as mating system, sex ratio and age structure. The effective population size (N e) is a useful measure for quantifying genetic drift. Evaluating ...
    • Decomposing demographic contributions to the effective population size with moose as a case study 

      Lee, Aline Magdalena; Svalheim Markussen, Stine; Engen, Steinar; Solberg, Erling Johan; Haanes, Hallvard; Røed, Knut H.; Herfindal, Ivar; Heim, Morten; Sæther, Bernt-Erik (Journal article; Peer reviewed, 2020)
      Levels of random genetic drift are influenced by demographic factors, such as mating system, sex ratio and age structure. The effective population size (Ne) is a useful measure for quantifying genetic drift. Evaluating ...
    • Demographic buffering of life histories? Implications of the choice of measurement scale 

      Bjørkvoll, Eirin Marie; Lee, Aline Magdalena; Grøtan, Vidar; Sæther, Bernt-Erik; Stien, Audun; Engen, Steinar; Albon, Steve D.; Loe, Leif Egil; Hansen, Brage Bremset (Journal article; Peer reviewed, 2016)
      Life-history theory predicts that the vital rates that influence population growth the most should be buffered against environmental fluctuations due to selection for reduced variation. However, it remains unclear whether ...
    • Demographic consequences of harvesting: a case study from a small and isolated moose population 

      Herfindal, Ivar; Lee, Aline Magdalena; Hamel, Sandra; Solberg, Erling Johan; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2021)
      ABSTRACT: Harvesting can have a substantial impact on population dynamics and individual performance in wild populations. While the direct consequences of harvest on individual survival and population growth rate are often ...
    • Environmental effects on spatial population dynamics and synchrony – lessons from northern ecosystems 

      Herfindal, Ivar; Lee, Aline Magdalena; Marquez, Jonatan; Le Moullec, Mathilde; Peeters, Bart; Hansen, Brage Bremset; Henden, John-André; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2021)
      Environmental variation in time and space generates complex patterns in the spatial structure of temporally covarying populations. Accounting for spatial population structure is important for sustainable management and ...
    • Family planning in the high Arctic: earlier spring onset advances age at first successful reproduction in barnacle geese 

      Fjelldal, Mari Aas (Master thesis, 2018)
      I en verden under oppvarming der arter møter nye miljøforandringer er evalueringen av klimaeffekter på individnivå gjennom livshistorie egenskaper viktig for å forstå langtids- utsiktene til naturlige populasjoner. ...
    • Modelling time to population extinction when individual reproduction is autocorrelated 

      Lee, Aline Magdalena; Sæther, Bernt-Erik; Markussen, Stine Svalheim; Engen, Steinar (Peer reviewed; Journal article, 2017)
      In nature, individual reproductive success is seldom independent from year to year, due to factors such as reproductive costs and individual heterogeneity. However, population projection models that incorporate temporal ...
    • The Moran effect revisited: spatial population synchrony under global warming 

      Hansen, Brage Bremset; Grøtan, Vidar; Herfindal, Ivar; Lee, Aline Magdalena (Peer reviewed; Journal article, 2020)
      The world is spatially autocorrelated. Both abiotic and biotic properties are more similar among neighboring than distant locations, and their temporal co-fluctuations also decrease with distance. P. A. P. Moran realized ...
    • More frequent extreme climate events stabilize reindeer population dynamics 

      Hansen, Brage Bremset; Gamelon, Marlène; Albon, Steve D.; Lee, Aline Magdalena; Stien, Audun; Irvine, Robert Justin; Sæther, Bernt-Erik; Loe, Leif Egil; Ropstad, Erik; Veiberg, Vebjørn; Grøtan, Vidar (Journal article; Peer reviewed, 2019)
      Extreme climate events often cause population crashes but are difficult to account for in population-dynamic studies. Especially in long-lived animals, density dependence and demography may induce lagged impacts of ...
    • The neglected season: Warmer autumns counteract harsher winters and promote population growth in Arctic reindeer 

      Loe, Leif Egil; Liston, Glen E.; Pigeon, Gabriel; Barker, Kristin; Horvitz, Nir; Stien, Audun; Forchhammer, Mads C.; Getz, Wayne M.; Irvine, Robert Justin; Lee, Aline Magdalena; Movik, Lars K.; Mysterud, Atle; Pedersen, Åshild Ønvik; Reinking, Adele K.; Ropstad, Erik; Trondrud, Liv Monica; Tveraa, Torkild; Veiberg, Vebjørn; Hansen, Brage Bremset; Albon, Steve D. (Peer reviewed; Journal article, 2020)
      Arctic ungulates are experiencing the most rapid climate warming on Earth. While concerns have been raised that more frequent icing events may cause die-offs, and earlier springs may generate a trophic mismatch in phenology, ...
    • No evidence of overall changes in spatial population synchrony across bird species in North America 

      Karlsen, Simen Christen (Master thesis, 2022)
      Populasjoner med sterkt korrelerte årlige fluktuasjoner i populasjonsstørrelse, har høy romlig populasjonssynkronitet. Dette øker ofte risikoen for utryddelse hos en art. Romlig autokorrelasjon i miljøstøy (eks. fluktuasjoner ...
    • Optimal harvesting in a changing climate 

      Lee, Aline Magdalena; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2021)
      Choosing the right harvesting strategy is crucial for sustainable utilization of biological resources but is challenging in real systems with fluctuating environments. This challenge is expected to become even greater with ...
    • Population responses to harvesting in fluctuating environments 

      Lee, Aline Magdalena; jarillo, j; Peeters, Bart; Hansen, Brage Bremset; cao-garcia, francisco; Sæther, Bernt-Erik; Engen, Steinar (Peer reviewed; Journal article, 2021)
      Achieving sustainable harvesting of natural populations depends on our ability to predict population responses to the combined effects of harvesting and environmental fluctuations while accounting for other internal and ...
    • Spatial covariation of competing species in a fluctuating environment 

      Lee, Aline Magdalena; Sæther, Bernt-Erik; Engen, Steinar (Journal article; Peer reviewed, 2020)
      Understanding how stochastic fluctuations in the environment influence population dynamics is crucial for sustainable management of biological diversity. However, because species do not live in isolation, this requires ...
    • Spatial scaling of population synchrony in marine fish depends on their life history 

      Fredricson Marquez, Jonatan; Lee, Aline Magdalena; Aanes, Sondre; Engen, Steinar; Herfindal, Ivar; Salthaug, Are; Sæther, Bernt-Erik (Peer reviewed; Journal article, 2019)
      The synchrony of population dynamics in space has important implications for ecological processes, for example affecting the spread of diseases, spatial distributions and risk of extinction. Here, we studied the relationship ...
    • Stochastic Modeling of Mating Systems and their Effect on Population Dynamics and Genetics 

      Lee, Aline Magdalena (Doktoravhandlinger ved NTNU, 1503-8181; 2011:94, Doctoral thesis, 2011)
    • Understanding spatial and interspecific processes affecting population dynamics in a marine ecosystem. 

      Marquez, Jonatan Fredricson (Doctoral theses at NTNU;2022:11, Doctoral thesis, 2022)
      The dynamics of wild populations are affected by density dependent and density independent processes that vary across multiple temporal and spatial scales. Despite this high complexity, populations often show some degree ...