Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa

 

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dc.contributor.author Mecenero, Silvia en_ZA
dc.contributor.author Altwegg, Res en_ZA
dc.contributor.author Colville, Jonathan F en_ZA
dc.contributor.author Beale, Colin M en_ZA
dc.date.accessioned 2016-01-02T05:07:15Z
dc.date.available 2016-01-02T05:07:15Z
dc.date.issued 2015 en_ZA
dc.identifier.citation Mecenero, S., Altwegg, R., Colville, J. F., & Beale, C. M. (2014). Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa. PloS one, 10(4), e0124327. doi:10.1371/journal.pone.0124327 en_ZA
dc.identifier.uri http://dx.doi.org/10.1371/journal.pone.0124327 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/16174
dc.description.abstract Wildlife and humans tend to prefer the same productive environments, yet high human densities often lead to reduced biodiversity. Species richness is often positively correlated with human population density at broad scales, but this correlation could also be caused by unequal sampling effort leading to higher species tallies in areas of dense human activity. We examined the relationships between butterfly species richness and human population density at five spatial resolutions ranging from 2' to 60' across South Africa. We used atlas-type data and spatial interpolation techniques aimed at reducing the effect of unequal spatial sampling. Our results confirm the general positive correlation between total species richness and human population density. Contrary to our expectations, the strength of this positive correlation did not weaken at finer spatial resolutions. The patterns observed using total species richness were driven mostly by common species. The richness of threatened and restricted range species was not correlated to human population density. None of the correlations we examined were particularly strong, with much unexplained variance remaining, suggesting that the overlap between butterflies and humans is not strong compared to other factors not accounted for in our analyses. Special consideration needs to be made regarding conservation goals and variables used when investigating the overlap between species and humans for biodiversity conservation. en_ZA
dc.language.iso eng en_ZA
dc.publisher Public Library of Science en_ZA
dc.rights This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/4.0 en_ZA
dc.source PLoS One en_ZA
dc.source.uri http://journals.plos.org/plosone en_ZA
dc.subject.other Species diversity en_ZA
dc.subject.other Population density en_ZA
dc.subject.other Moths and butterflies en_ZA
dc.subject.other South Africa en_ZA
dc.subject.other Biodiversity en_ZA
dc.subject.other Conservation science en_ZA
dc.subject.other Habitats en_ZA
dc.subject.other Environmental geography en_ZA
dc.title Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa en_ZA
dc.type Journal Article en_ZA
dc.rights.holder © 2015 Mecenero et al en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Statistical Sciences en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Mecenero, S., Altwegg, R., Colville, J. F., & Beale, C. M. (2015). Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa. <i>PLoS One</i>, http://hdl.handle.net/11427/16174 en_ZA
dc.identifier.chicagocitation Mecenero, Silvia, Res Altwegg, Jonathan F Colville, and Colin M Beale "Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa." <i>PLoS One</i> (2015) http://hdl.handle.net/11427/16174 en_ZA
dc.identifier.vancouvercitation Mecenero S, Altwegg R, Colville JF, Beale CM. Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa. PLoS One. 2015; http://hdl.handle.net/11427/16174. en_ZA
dc.identifier.ris TY - Journal Article AU - Mecenero, Silvia AU - Altwegg, Res AU - Colville, Jonathan F AU - Beale, Colin M AB - Wildlife and humans tend to prefer the same productive environments, yet high human densities often lead to reduced biodiversity. Species richness is often positively correlated with human population density at broad scales, but this correlation could also be caused by unequal sampling effort leading to higher species tallies in areas of dense human activity. We examined the relationships between butterfly species richness and human population density at five spatial resolutions ranging from 2' to 60' across South Africa. We used atlas-type data and spatial interpolation techniques aimed at reducing the effect of unequal spatial sampling. Our results confirm the general positive correlation between total species richness and human population density. Contrary to our expectations, the strength of this positive correlation did not weaken at finer spatial resolutions. The patterns observed using total species richness were driven mostly by common species. The richness of threatened and restricted range species was not correlated to human population density. None of the correlations we examined were particularly strong, with much unexplained variance remaining, suggesting that the overlap between butterflies and humans is not strong compared to other factors not accounted for in our analyses. Special consideration needs to be made regarding conservation goals and variables used when investigating the overlap between species and humans for biodiversity conservation. DA - 2015 DB - OpenUCT DO - 10.1371/journal.pone.0124327 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa TI - Roles of spatial scale and rarity on the relationship between butterfly species richness and human density in South Africa UR - http://hdl.handle.net/11427/16174 ER - en_ZA


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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.