Evaluating the performance of species richness estimators: sensitivity to sample grain size
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.3/1401 |
Resumo: | Copyright © 2006 British Ecological Society. |
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7160 |
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Evaluating the performance of species richness estimators: sensitivity to sample grain sizeAzoresEpigean ArthropodsGrain SizeSampling EffortSpecies Richness EstimationCopyright © 2006 British Ecological Society.1. Fifteen species richness estimators (three asymptotic based on species accumulation curves, 11 nonparametric, and one based in the species-area relationship) were compared by examining their performance in estimating the total species richness of epigean arthropods in the Azorean Laurisilva forests. Data obtained with standardized sampling of 78 transects in natural forest remnants of five islands were aggregated in seven different grains (i.e. ways of defining a single sample): islands, natural areas, transects, pairs of traps, traps, database records and individuals to assess the effect of using different sampling units on species richness estimations. 2. Estimated species richness scores depended both on the estimator considered and on the grain size used to aggregate data. However, several estimators (ACE, Chao1, Jackknife1 and 2 and Bootstrap) were precise in spite of grain variations. Weibull and several recent estimators [proposed by Rosenzweig et al. (Conservation Biology, 2003, 17, 864-874), and Ugland et al. (Journal of Animal Ecology, 2003, 72, 888-897)] performed poorly. 3. Estimations developed using the smaller grain sizes (pair of traps, traps, records and individuals) presented similar scores in a number of estimators (the above-mentioned plus ICE, Chao2, Michaelis-Menten, Negative Exponential and Clench). The estimations from those four sample sizes were also highly correlated. 4. Contrary to other studies, we conclude that most species richness estimators may be useful in biodiversity studies. Owing to their inherent formulas, several nonparametric and asymptotic estimators present insensitivity to differences in the way the samples are aggregated. Thus, they could be used to compare species richness scores obtained from different sampling strategies. Our results also point out that species richness estimations coming from small grain sizes can be directly compared and other estimators could give more precise results in those cases. We propose a decision framework based on our results and on the literature to assess which estimator should be used to compare species richness scores of different sites, depending on the grain size of the original data, and of the kind of data available (species occurrence or abundance data).Wiley-BlackwellRepositório da Universidade dos AçoresHortal, JoaquínBorges, Paulo A. V.Gaspar, Clara2012-06-12T10:38:39Z2006-012012-06-07T14:11:18Z2006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1401engHortal, J.; Borges, P.A.V.; Gaspar, C.. Evaluating the performance of species richness estimators: sensitivity to sample grain size. "JOURNAL OF ANIMAL ECOLOGY", 75(1), 274-287, 2006.0021-8790 (Print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:29:04Zoai:repositorio.uac.pt:10400.3/1401Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:14.435398Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
title |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
spellingShingle |
Evaluating the performance of species richness estimators: sensitivity to sample grain size Hortal, Joaquín Azores Epigean Arthropods Grain Size Sampling Effort Species Richness Estimation |
title_short |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
title_full |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
title_fullStr |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
title_full_unstemmed |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
title_sort |
Evaluating the performance of species richness estimators: sensitivity to sample grain size |
author |
Hortal, Joaquín |
author_facet |
Hortal, Joaquín Borges, Paulo A. V. Gaspar, Clara |
author_role |
author |
author2 |
Borges, Paulo A. V. Gaspar, Clara |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Hortal, Joaquín Borges, Paulo A. V. Gaspar, Clara |
dc.subject.por.fl_str_mv |
Azores Epigean Arthropods Grain Size Sampling Effort Species Richness Estimation |
topic |
Azores Epigean Arthropods Grain Size Sampling Effort Species Richness Estimation |
description |
Copyright © 2006 British Ecological Society. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-01 2006-01-01T00:00:00Z 2012-06-12T10:38:39Z 2012-06-07T14:11:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.3/1401 |
url |
http://hdl.handle.net/10400.3/1401 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Hortal, J.; Borges, P.A.V.; Gaspar, C.. Evaluating the performance of species richness estimators: sensitivity to sample grain size. "JOURNAL OF ANIMAL ECOLOGY", 75(1), 274-287, 2006. 0021-8790 (Print) |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130687984369664 |