Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842004000200016 |
Resumo: | Recently, the hypothesis that the geographic distribution of species could be influenced by the shape of the domain edges, the so-called Mid-Domain Effect (MDE), has been included as one of the five credible hypotheses for explaining spatial gradients in species richness, despite all the unsuccessful current attempts to prove empirically the validity of MDE. We used data on spatial worldwide distributions of Falconiformes to evaluate the validity of MDE assumptions, incorporated into two different sorts of null models at a global level and separately across five domains/landmasses. Species richness values predicted by the null models of the MDE and those values predicted by Net Primary Productivity, a surrogate variable expressing the effect of available energy, were compared in order to evaluate which hypothesis better predicts the observed values. Our tests showed that MDE continues to lack empirical support, regardless of its current acceptability, and so, does not deserve to be classified as one possible explanation of species richness gradients. |
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Brazilian Journal of Biology |
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spelling |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effectspecies richnessspatial patternsrichness gradientsnet primary productivitymid-domain effectnull modelsFalconiformesRecently, the hypothesis that the geographic distribution of species could be influenced by the shape of the domain edges, the so-called Mid-Domain Effect (MDE), has been included as one of the five credible hypotheses for explaining spatial gradients in species richness, despite all the unsuccessful current attempts to prove empirically the validity of MDE. We used data on spatial worldwide distributions of Falconiformes to evaluate the validity of MDE assumptions, incorporated into two different sorts of null models at a global level and separately across five domains/landmasses. Species richness values predicted by the null models of the MDE and those values predicted by Net Primary Productivity, a surrogate variable expressing the effect of available energy, were compared in order to evaluate which hypothesis better predicts the observed values. Our tests showed that MDE continues to lack empirical support, regardless of its current acceptability, and so, does not deserve to be classified as one possible explanation of species richness gradients.Instituto Internacional de Ecologia2004-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842004000200016Brazilian Journal of Biology v.64 n.2 2004reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842004000200016info:eu-repo/semantics/openAccessRangel,T. F. L.V. B.Diniz-filho,J. A. F.eng2004-08-20T00:00:00Zoai:scielo:S1519-69842004000200016Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2004-08-20T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
title |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
spellingShingle |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect Rangel,T. F. L.V. B. species richness spatial patterns richness gradients net primary productivity mid-domain effect null models Falconiformes |
title_short |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
title_full |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
title_fullStr |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
title_full_unstemmed |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
title_sort |
Worldwide patterns in species richness of falconiformes: analytical null models, geometric constraints, and the mid-domain effect |
author |
Rangel,T. F. L.V. B. |
author_facet |
Rangel,T. F. L.V. B. Diniz-filho,J. A. F. |
author_role |
author |
author2 |
Diniz-filho,J. A. F. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Rangel,T. F. L.V. B. Diniz-filho,J. A. F. |
dc.subject.por.fl_str_mv |
species richness spatial patterns richness gradients net primary productivity mid-domain effect null models Falconiformes |
topic |
species richness spatial patterns richness gradients net primary productivity mid-domain effect null models Falconiformes |
description |
Recently, the hypothesis that the geographic distribution of species could be influenced by the shape of the domain edges, the so-called Mid-Domain Effect (MDE), has been included as one of the five credible hypotheses for explaining spatial gradients in species richness, despite all the unsuccessful current attempts to prove empirically the validity of MDE. We used data on spatial worldwide distributions of Falconiformes to evaluate the validity of MDE assumptions, incorporated into two different sorts of null models at a global level and separately across five domains/landmasses. Species richness values predicted by the null models of the MDE and those values predicted by Net Primary Productivity, a surrogate variable expressing the effect of available energy, were compared in order to evaluate which hypothesis better predicts the observed values. Our tests showed that MDE continues to lack empirical support, regardless of its current acceptability, and so, does not deserve to be classified as one possible explanation of species richness gradients. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-05-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842004000200016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842004000200016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842004000200016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.64 n.2 2004 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129875160858624 |