Negative impacts of human land use on dung beetle functional diversity.

The loss of biodiversity caused by human activity is assumed to alter ecosystem functioning. However our understanding of the magnitude of the effect of these changes on functional diversity and their impact on the dynamics of ecological processes is still limited. We analyzed the functional diversi...

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Autores principales:	Felipe Barragán, Claudia E Moreno, Federico Escobar, Gonzalo Halffter, Dario Navarrete
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ccfb89da54fb4a58a4094ecb66953078
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spelling	oai:doaj.org-article:ccfb89da54fb4a58a4094ecb669530782021-11-18T06:56:55ZNegative impacts of human land use on dung beetle functional diversity.1932-620310.1371/journal.pone.0017976https://doaj.org/article/ccfb89da54fb4a58a4094ecb669530782011-03-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21448292/?tool=EBIhttps://doaj.org/toc/1932-6203The loss of biodiversity caused by human activity is assumed to alter ecosystem functioning. However our understanding of the magnitude of the effect of these changes on functional diversity and their impact on the dynamics of ecological processes is still limited. We analyzed the functional diversity of copro-necrophagous beetles under different conditions of land use in three Mexican biosphere reserves. In Montes Azules pastures, forest fragments and continuous rainforest were analyzed, in Los Tuxtlas rainforest fragments of different sizes were analyzed and in Barranca de Metztitlán two types of xerophile scrub with different degrees of disturbance from grazing were analyzed. We assigned dung beetle species to functional groups based on food relocation, beetle size, daily activity period and food preferences, and as measures of functional diversity we used estimates based on multivariate methods. In Montes Azules functional richness was lower in the pastures than in continuous rainforest and rainforest fragments, but fragments and continuous forest include functionally redundant species. In small rainforest fragments (<5 ha) in Los Tuxtlas, dung beetle functional richness was lower than in large rainforest fragments (>20 ha). Functional evenness and functional dispersion did not vary among habitat types or fragment size in these reserves. In contrast, in Metztitlán, functional richness and functional dispersion were different among the vegetation types, but differences were not related to the degree of disturbance by grazing. More redundant species were found in submontane than in crassicaule scrub. For the first time, a decrease in the functional diversity in communities of copro-necrophagous beetles resulting from changes in land use is documented, the potential implications for ecosystem functioning are discussed and a series of variables that could improve the evaluation of functional diversity for this biological group is proposed.Felipe BarragánClaudia E MorenoFederico EscobarGonzalo HalffterDario NavarretePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 3, p e17976 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Felipe Barragán Claudia E Moreno Federico Escobar Gonzalo Halffter Dario Navarrete Negative impacts of human land use on dung beetle functional diversity.
description	The loss of biodiversity caused by human activity is assumed to alter ecosystem functioning. However our understanding of the magnitude of the effect of these changes on functional diversity and their impact on the dynamics of ecological processes is still limited. We analyzed the functional diversity of copro-necrophagous beetles under different conditions of land use in three Mexican biosphere reserves. In Montes Azules pastures, forest fragments and continuous rainforest were analyzed, in Los Tuxtlas rainforest fragments of different sizes were analyzed and in Barranca de Metztitlán two types of xerophile scrub with different degrees of disturbance from grazing were analyzed. We assigned dung beetle species to functional groups based on food relocation, beetle size, daily activity period and food preferences, and as measures of functional diversity we used estimates based on multivariate methods. In Montes Azules functional richness was lower in the pastures than in continuous rainforest and rainforest fragments, but fragments and continuous forest include functionally redundant species. In small rainforest fragments (<5 ha) in Los Tuxtlas, dung beetle functional richness was lower than in large rainforest fragments (>20 ha). Functional evenness and functional dispersion did not vary among habitat types or fragment size in these reserves. In contrast, in Metztitlán, functional richness and functional dispersion were different among the vegetation types, but differences were not related to the degree of disturbance by grazing. More redundant species were found in submontane than in crassicaule scrub. For the first time, a decrease in the functional diversity in communities of copro-necrophagous beetles resulting from changes in land use is documented, the potential implications for ecosystem functioning are discussed and a series of variables that could improve the evaluation of functional diversity for this biological group is proposed.
format	article
author	Felipe Barragán Claudia E Moreno Federico Escobar Gonzalo Halffter Dario Navarrete
author_facet	Felipe Barragán Claudia E Moreno Federico Escobar Gonzalo Halffter Dario Navarrete
author_sort	Felipe Barragán
title	Negative impacts of human land use on dung beetle functional diversity.
title_short	Negative impacts of human land use on dung beetle functional diversity.
title_full	Negative impacts of human land use on dung beetle functional diversity.
title_fullStr	Negative impacts of human land use on dung beetle functional diversity.
title_full_unstemmed	Negative impacts of human land use on dung beetle functional diversity.
title_sort	negative impacts of human land use on dung beetle functional diversity.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/ccfb89da54fb4a58a4094ecb66953078
work_keys_str_mv	AT felipebarragan negativeimpactsofhumanlanduseondungbeetlefunctionaldiversity AT claudiaemoreno negativeimpactsofhumanlanduseondungbeetlefunctionaldiversity AT federicoescobar negativeimpactsofhumanlanduseondungbeetlefunctionaldiversity AT gonzalohalffter negativeimpactsofhumanlanduseondungbeetlefunctionaldiversity AT darionavarrete negativeimpactsofhumanlanduseondungbeetlefunctionaldiversity
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Negative impacts of human land use on dung beetle functional diversity.

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