Blar i Institutt for biologi på tidsskrift "Methods in Ecology and Evolution"
Viser treff 1-14 av 14
-
Describing posterior distributions of variance components: Problems and the use of null distributions to aid interpretation
(Peer reviewed; Journal article, 2023)1. Assessing the biological relevance of variance components estimated using Markov chain Monte Carlo (MCMC)-based mixed-effects models is not straightforward. Variance estimates are constrained to be greater than zero and ... -
Domain-specific neural networks improve automated bird sound recognition already with small amount of local data
(Peer reviewed; Journal article, 2022)An automatic bird sound recognition system is a useful tool for collecting data of different bird species for ecological analysis. Together with autonomous recording units (ARUs), such a system provides a possibility to ... -
Estimation of additive genetic variance when there are gene–environment correlations: Pitfalls, solutions and unexplored questions
(Peer reviewed; Journal article, 2023)Estimating the genetic variation underpinning a trait is crucial to understanding and predicting its evolution. A key statistical tool to estimate this variation is the animal model. Typically, the environment is modelled ... -
Genetic assignment of individuals to source populations using network estimation tools
(Peer reviewed; Journal article, 2019)Dispersal, the movement of individuals between populations, is crucial in many ecological and genetic processes. However, direct identification of dispersing individuals is difficult or impossible in natural populations. ... -
Genomic estimation of quantitative genetic parameters in wild admixed populations
(Peer reviewed; Journal article, 2022)1. Heritable genetic variation among free-living animals or plants is essential for populations to respond to selection and adapt. It is therefore important to be able to estimate additive genetic variance VA, which can ... -
Improving the predictability and interpretability of co-occurrence modelling through feature-based joint species distribution ensembles
(Peer reviewed; Journal article, 2022)Species Distribution Models (SDMs) are vital tools for predicting species occurrences and are used in many practical tasks including conservation and biodiversity management. However, the expanding minefield of SDM ... -
Increasing the power of genome wide association studies in natural populations using repeated measures - evaluation and implementation
(Journal article; Peer reviewed, 2016)1. Genomewide association studies (GWAS) enable detailed dissections of the genetic basis for organisms’ ability to adapt to a changing environment. In long-term studies of natural populations, individuals are often marked ... -
Mathematical and simulation methods for deriving extinction thresholds in spatial and stochastic models of interacting agents
(Peer reviewed; Journal article, 2021)In ecology, one of the most fundamental questions relates to the persistence of populations, or conversely to the probability of their extinction. Deriving extinction thresholds and characterizing other critical phenomena ... -
Model-based ordination for species with unequal niche widths
(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 ... -
Quantifying fixed individual heterogeneity in demographic parameters: Performance of correlated random effects for Bernoulli variables
(Peer reviewed; Journal article, 2021)1. An increasing number of empirical studies aim to quantify individual variation in demographic parameters because these patterns are key for evolutionary and ecological processes. Advanced approaches to estimate individual ... -
Robustness of linear mixed-effects models to violations of distributional assumptions
(Peer reviewed; Journal article, 2020)Linear mixed-effects models are powerful tools for analysing complex datasets with repeated or clustered observations, a common data structure in ecology and evolution. Mixed-effects models involve complex fitting procedures ... -
Slicing: A sustainable approach to structuring samples for analysis in long‐term studies
(Peer reviewed; Journal article, 2020)The longitudinal study of populations is a core tool for understanding ecological and evolutionary processes. Long-term studies typically collect samples repeatedly over individual lifetimes and across generations. These ... -
The handbook for standardized field and laboratory measurements in terrestrial climate change experiments and observational studies (ClimEx)
(Journal article; Peer reviewed, 2019)1. Climate change is a world-wide threat to biodiversity and ecosystem structure, functioning and services. To understand the underlying drivers and mechanisms, and to predict the consequences for nature and people, we ... -
Two-current choice flumes for testing avoidance and preference in aquatic animals
(Journal article; Peer reviewed, 2016)1. Aquatic chemical ecology is an important and growing field of research that involves understanding how organisms perceive and respond to chemical cues in their environment. Research assessing the preference or avoidance ...