Biogeographic multi‐species occupancy models for large‐scale survey data

Abstract Ecologists often seek to infer patterns of species occurrence or community structure from survey data. Hierarchical models, including multi‐species occupancy models (MSOMs), can improve inference by pooling information across multiple species via random effects. Originally developed for loc...

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Main Authors: Jacob B. Socolar, Simon C. Mills, Torbjørn Haugaasen, James J. Gilroy, David P. Edwards
Format: Article
Language:English
Published: Wiley 2022-10-01
Series:Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1002/ece3.9328
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author Jacob B. Socolar
Simon C. Mills
Torbjørn Haugaasen
James J. Gilroy
David P. Edwards
author_facet Jacob B. Socolar
Simon C. Mills
Torbjørn Haugaasen
James J. Gilroy
David P. Edwards
author_sort Jacob B. Socolar
collection DOAJ
description Abstract Ecologists often seek to infer patterns of species occurrence or community structure from survey data. Hierarchical models, including multi‐species occupancy models (MSOMs), can improve inference by pooling information across multiple species via random effects. Originally developed for local‐scale survey data, MSOMs are increasingly applied to larger spatial scales that transcend major abiotic gradients and dispersal barriers. At biogeographic scales, the benefits of partial pooling in MSOMs trade off against the difficulty of incorporating sufficiently complex spatial effects to account for biogeographic variation in occupancy across multiple species simultaneously. We show how this challenge can be overcome by incorporating preexisting range information into MSOMs, yielding a “biogeographic multi‐species occupancy model” (bMSOM). We illustrate the bMSOM using two published datasets: Parulid warblers in the United States Breeding Bird Survey and entire avian communities in forests and pastures of Colombia's West Andes. Compared with traditional MSOMs, the bMSOM provides dramatically better predictive performance at lower computational cost. The bMSOM avoids severe spatial biases in predictions of the traditional MSOM and provides principled species‐specific inference even for never‐observed species. Incorporating preexisting range data enables principled partial pooling of information across species in large‐scale MSOMs. Our biogeographic framework for multi‐species modeling should be broadly applicable in hierarchical models that predict species occurrences, whether or not false absences are modeled in an occupancy framework.
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spelling doaj.art-a6da94412bfa4ef988aac4bf621e26422022-12-22T02:48:09ZengWileyEcology and Evolution2045-77582022-10-011210n/an/a10.1002/ece3.9328Biogeographic multi‐species occupancy models for large‐scale survey dataJacob B. Socolar0Simon C. Mills1Torbjørn Haugaasen2James J. Gilroy3David P. Edwards4Faculty of the Environment and Natural Resources Management Norwegian University of Life Sciences Ås NorwayEcology and Evolutionary Biology School of Biosciences, University of Sheffield Sheffield UKFaculty of the Environment and Natural Resources Management Norwegian University of Life Sciences Ås NorwaySchool of Environmental Sciences University of East Anglia Norwich UKEcology and Evolutionary Biology School of Biosciences, University of Sheffield Sheffield UKAbstract Ecologists often seek to infer patterns of species occurrence or community structure from survey data. Hierarchical models, including multi‐species occupancy models (MSOMs), can improve inference by pooling information across multiple species via random effects. Originally developed for local‐scale survey data, MSOMs are increasingly applied to larger spatial scales that transcend major abiotic gradients and dispersal barriers. At biogeographic scales, the benefits of partial pooling in MSOMs trade off against the difficulty of incorporating sufficiently complex spatial effects to account for biogeographic variation in occupancy across multiple species simultaneously. We show how this challenge can be overcome by incorporating preexisting range information into MSOMs, yielding a “biogeographic multi‐species occupancy model” (bMSOM). We illustrate the bMSOM using two published datasets: Parulid warblers in the United States Breeding Bird Survey and entire avian communities in forests and pastures of Colombia's West Andes. Compared with traditional MSOMs, the bMSOM provides dramatically better predictive performance at lower computational cost. The bMSOM avoids severe spatial biases in predictions of the traditional MSOM and provides principled species‐specific inference even for never‐observed species. Incorporating preexisting range data enables principled partial pooling of information across species in large‐scale MSOMs. Our biogeographic framework for multi‐species modeling should be broadly applicable in hierarchical models that predict species occurrences, whether or not false absences are modeled in an occupancy framework.https://doi.org/10.1002/ece3.9328community modelhierarchical modeloccupancy modelpoolingspatial scale
spellingShingle Jacob B. Socolar
Simon C. Mills
Torbjørn Haugaasen
James J. Gilroy
David P. Edwards
Biogeographic multi‐species occupancy models for large‐scale survey data
Ecology and Evolution
community model
hierarchical model
occupancy model
pooling
spatial scale
title Biogeographic multi‐species occupancy models for large‐scale survey data
title_full Biogeographic multi‐species occupancy models for large‐scale survey data
title_fullStr Biogeographic multi‐species occupancy models for large‐scale survey data
title_full_unstemmed Biogeographic multi‐species occupancy models for large‐scale survey data
title_short Biogeographic multi‐species occupancy models for large‐scale survey data
title_sort biogeographic multi species occupancy models for large scale survey data
topic community model
hierarchical model
occupancy model
pooling
spatial scale
url https://doi.org/10.1002/ece3.9328
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