Cargando…

Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding

Few universal trends in spatial patterns of wildlife crop-raiding have been found. Variations in wildlife ecology and movements, and human spatial use have been identified as causes of this apparent unpredictability. However, varying spatial patterns of spatial autocorrelation (SA) in human–wildlife...

Descripción completa

Detalles Bibliográficos
Autores principales: Songhurst, Anna, Coulson, Tim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4098139/
https://www.ncbi.nlm.nih.gov/pubmed/25035800
http://dx.doi.org/10.1002/ece3.837
_version_ 1782326271861063680
author Songhurst, Anna
Coulson, Tim
author_facet Songhurst, Anna
Coulson, Tim
author_sort Songhurst, Anna
collection PubMed
description Few universal trends in spatial patterns of wildlife crop-raiding have been found. Variations in wildlife ecology and movements, and human spatial use have been identified as causes of this apparent unpredictability. However, varying spatial patterns of spatial autocorrelation (SA) in human–wildlife conflict (HWC) data could also contribute. We explicitly explore the effects of SA on wildlife crop-raiding data in order to facilitate the design of future HWC studies. We conducted a comparative survey of raided and nonraided fields to determine key drivers of crop-raiding. Data were subsampled at different spatial scales to select independent raiding data points. The model derived from all data was fitted to subsample data sets. Model parameters from these models were compared to determine the effect of SA. Most methods used to account for SA in data attempt to correct for the change in P-values; yet, by subsampling data at broader spatial scales, we identified changes in regression estimates. We consequently advocate reporting both model parameters across a range of spatial scales to help biological interpretation. Patterns of SA vary spatially in our crop-raiding data. Spatial distribution of fields should therefore be considered when choosing the spatial scale for analyses of HWC studies. Robust key drivers of elephant crop-raiding included raiding history of a field and distance of field to a main elephant pathway. Understanding spatial patterns and determining reliable socio-ecological drivers of wildlife crop-raiding is paramount for designing mitigation and land-use planning strategies to reduce HWC. Spatial patterns of HWC are complex, determined by multiple factors acting at more than one scale; therefore, studies need to be designed with an understanding of the effects of SA. Our methods are accessible to a variety of practitioners to assess the effects of SA, thereby improving the reliability of conservation management actions.
format Online
Article
Text
id pubmed-4098139
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher John Wiley & Sons Ltd
record_format MEDLINE/PubMed
spelling pubmed-40981392014-07-17 Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding Songhurst, Anna Coulson, Tim Ecol Evol Original Research Few universal trends in spatial patterns of wildlife crop-raiding have been found. Variations in wildlife ecology and movements, and human spatial use have been identified as causes of this apparent unpredictability. However, varying spatial patterns of spatial autocorrelation (SA) in human–wildlife conflict (HWC) data could also contribute. We explicitly explore the effects of SA on wildlife crop-raiding data in order to facilitate the design of future HWC studies. We conducted a comparative survey of raided and nonraided fields to determine key drivers of crop-raiding. Data were subsampled at different spatial scales to select independent raiding data points. The model derived from all data was fitted to subsample data sets. Model parameters from these models were compared to determine the effect of SA. Most methods used to account for SA in data attempt to correct for the change in P-values; yet, by subsampling data at broader spatial scales, we identified changes in regression estimates. We consequently advocate reporting both model parameters across a range of spatial scales to help biological interpretation. Patterns of SA vary spatially in our crop-raiding data. Spatial distribution of fields should therefore be considered when choosing the spatial scale for analyses of HWC studies. Robust key drivers of elephant crop-raiding included raiding history of a field and distance of field to a main elephant pathway. Understanding spatial patterns and determining reliable socio-ecological drivers of wildlife crop-raiding is paramount for designing mitigation and land-use planning strategies to reduce HWC. Spatial patterns of HWC are complex, determined by multiple factors acting at more than one scale; therefore, studies need to be designed with an understanding of the effects of SA. Our methods are accessible to a variety of practitioners to assess the effects of SA, thereby improving the reliability of conservation management actions. John Wiley & Sons Ltd 2014-03 2014-02-07 /pmc/articles/PMC4098139/ /pubmed/25035800 http://dx.doi.org/10.1002/ece3.837 Text en © 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use,distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Songhurst, Anna
Coulson, Tim
Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title_full Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title_fullStr Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title_full_unstemmed Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title_short Exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
title_sort exploring the effects of spatial autocorrelation when identifying key drivers of wildlife crop-raiding
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4098139/
https://www.ncbi.nlm.nih.gov/pubmed/25035800
http://dx.doi.org/10.1002/ece3.837
work_keys_str_mv AT songhurstanna exploringtheeffectsofspatialautocorrelationwhenidentifyingkeydriversofwildlifecropraiding
AT coulsontim exploringtheeffectsofspatialautocorrelationwhenidentifyingkeydriversofwildlifecropraiding