Joint species distribution modelling with the R-package Hmsc

Research output: Contribution to journalArticle

Researchers

  • Gleb Tikhonov

  • Øystein H. Opedal
  • Nerea Abrego
  • Aleksi Lehikoinen
  • Melinda M.J. de Jonge
  • Jari Oksanen
  • Otso Ovaskainen

Research units

  • University of Helsinki
  • Norwegian University of Science and Technology
  • Radboud University

Abstract

Joint Species Distribution Modelling (JSDM) is becoming an increasingly popular statistical method for analyzing data in community ecology. Hierarchical Modelling of Species Communities (HMSC) is a general and flexible framework for fitting JSDMs. HMSC allows the integration of community ecology data with data on environmental covariates, species traits, phylogenetic relationships, and the spatio-temporal context of the study, providing predictive insights into community assembly processes from non-manipulative observational data of species communities. The full range of functionality of HMSC has remained restricted to Matlab users only. To make HMSC accessible to the wider community of ecologists, we introduce Hmsc 3.0, a user-friendly R implementation of the framework described in Ovaskainen et al. (Ecology Letters, 20 (5), 561-576, 2017) and further extended in several later publications. We illustrate the use of the package by applying Hmsc 3.0 to a range of case studies on real and simulated data. The real data consist of bird counts in a spatio-temporally structured dataset, environmental covariates, species traits and phylogenetic relationships. Vignettes on simulated data involve single-species models, models of small communities, models of large species communities, and models for large spatial data. We demonstrate the estimation of species responses to environmental covariates and how these depend on species traits, as well as the estimation of residual species associations. We demonstrate how to construct and fit many kinds of models, how to examine MCMC convergence, how to examine the explanatory and predictive powers of the models, how to assess parameter estimates, and how to make predictions. We further demonstrate how Hmsc 3.0 can be applied to normally distributed data, count data, and presence-absence data. The package, along with the extended vignettes, makes JSDM fitting and post-processing easily accessible to ecologists familiar with R.

Details

Original languageEnglish
JournalMethods in Ecology and Evolution
Publication statusE-pub ahead of print - 25 Dec 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • Community modelling, Community similarity, Multivariate data, Species Distribution Modelling

ID: 40364124