Browsing NTNU Open by Author "Solbu, Erik Blystad"
Now showing items 1-7 of 7
-
Analyzing dynamic species abundance distributions using generalized linear mixed models
Solbu, Erik Blystad; van der Veen, Bert; Herfindal, Ivar; Hovstad, Knut Anders (Peer reviewed; Journal article, 2022)Understanding the mechanisms of ecological community dynamics and how they could be affected by environmental changes is important. Population dynamic models have well known ecological parameters that describe key ... -
Characteristics of temporal changes in communities where dynamics differ between species
Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard (Journal article; Peer reviewed, 2016)Communities with different phenotypic variation among species can have identical species abundance distributions, although their temporal dynamics may be very different. By using stochastic species abundance models, both ... -
Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation
Wright, Jonathan; Solbu, Erik Blystad; Engen, Steinar (Journal article; Peer reviewed, 2020)There has been much recent research interest in the existence of a major axis of life‐history variation along a fast–slow continuum within almost all major taxonomic groups. Eco‐evolutionary models of density‐dependent ... -
Heterogeneity among species and community dynamics – Norwegian bird communities as a case study
Solbu, Erik Blystad; Diserud, Ola Håvard; Kålås, John Atle; Engen, Steinar (Journal article; Peer reviewed, 2018)We have in this study analysed bird communities across Norway with a heterogeneous species abundance model, where dynamical parameters can vary among species. Similarity in community composition over time, used as a measure ... -
Model-based ordination for species with unequal niche widths
van der Veen, Bert; Hui, Francis K. C.; Hovstad, Knut Anders; Solbu, Erik Blystad; OHara, Robert Brian (Peer reviewed; Journal article, 2021)1. It is common practice for ecologists to examine species niches in the study of community composition. The response curve of a species in the fundamental niche is usually assumed to be quadratic. The centre of a quadratic ... -
Modelling and statistical analysis of demographic and environmental changes in populations and communities
Solbu, Erik Blystad (Doctoral thesis at NTNU;2015:287, Doctoral thesis, 2015) -
Temporal changes in parameters describing stochastic population dynamics
Solbu, Erik Blystad (Master thesis, 2011)The solution of a stochastic differential equation with temporally dependent parameters is the basis for the following analysis of stochastic population dynamics with temporal changes in the parameters. A discrete density ...