Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/10400.3/4586 |
Resumo: | Many recent researches in island biogeography attempted to disentangle the effects of area per se and "habitat diversity" on species richness. However, the expression "habitat diversity" in this context should be avoided, because habitats can be only recognized by referring to the resources needed by a particular species. What is really measured in such researches is some form of “environmental heterogeneity”. Although habitat heterogeneity can be measured in various ways, most researches in island biogeography simply used the number of biotopes (typically classified as land cover categories). However, not all biotopes have the same surface.On the basis of the area occupied by each land cover category, it is possible to calculate indices of environmental diversity, evenness and dominance, as commonly done in community ecology research. These indices can be used to investigate the role of environmental diversity in determining species richness. We used the tenebrionid beetles inhabiting twenty-five small islands around Sicily (Central Mediterranean) to illustrate these concepts. We found that both area per se and environmental heterogeneity contributed to determine species richness. Moreover, we found that the relationship between species richness and environmental homogeneity followed a power function model. This indicates that environmental homogenization may determine a rapid, non linear decline in species richness. |
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Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae)DiversityEnvironmental HeterogeneityEvennessHabitat HypothesisStructural EquationsSicilyMany recent researches in island biogeography attempted to disentangle the effects of area per se and "habitat diversity" on species richness. However, the expression "habitat diversity" in this context should be avoided, because habitats can be only recognized by referring to the resources needed by a particular species. What is really measured in such researches is some form of “environmental heterogeneity”. Although habitat heterogeneity can be measured in various ways, most researches in island biogeography simply used the number of biotopes (typically classified as land cover categories). However, not all biotopes have the same surface.On the basis of the area occupied by each land cover category, it is possible to calculate indices of environmental diversity, evenness and dominance, as commonly done in community ecology research. These indices can be used to investigate the role of environmental diversity in determining species richness. We used the tenebrionid beetles inhabiting twenty-five small islands around Sicily (Central Mediterranean) to illustrate these concepts. We found that both area per se and environmental heterogeneity contributed to determine species richness. Moreover, we found that the relationship between species richness and environmental homogeneity followed a power function model. This indicates that environmental homogenization may determine a rapid, non linear decline in species richness.PAGEpressRepositório da Universidade dos AçoresFattorini, SimoneDapporto, LeonardoStrona, GiovanniBorges, Paulo A. V.2018-02-19T17:02:46Z20152015-08-01T11:14:56Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/4586engFattorini, S.; Dapporto, L.; Strona, G.; Borges, P.A.V. (2015). Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography: a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae), “Fragmenta Entomologica”, 47(1): 1-14. DOI: 10.4081/fe.2015.1292284-488010.4081/fe.2015.129info: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:RCAAP2022-12-20T14:31:31Zoai:repositorio.uac.pt:10400.3/4586Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:26:03.025793Repositório 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 |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
title |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
spellingShingle |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) Fattorini, Simone Diversity Environmental Heterogeneity Evenness Habitat Hypothesis Structural Equations Sicily |
title_short |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
title_full |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
title_fullStr |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
title_full_unstemmed |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
title_sort |
Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography : a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae) |
author |
Fattorini, Simone |
author_facet |
Fattorini, Simone Dapporto, Leonardo Strona, Giovanni Borges, Paulo A. V. |
author_role |
author |
author2 |
Dapporto, Leonardo Strona, Giovanni Borges, Paulo A. V. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Fattorini, Simone Dapporto, Leonardo Strona, Giovanni Borges, Paulo A. V. |
dc.subject.por.fl_str_mv |
Diversity Environmental Heterogeneity Evenness Habitat Hypothesis Structural Equations Sicily |
topic |
Diversity Environmental Heterogeneity Evenness Habitat Hypothesis Structural Equations Sicily |
description |
Many recent researches in island biogeography attempted to disentangle the effects of area per se and "habitat diversity" on species richness. However, the expression "habitat diversity" in this context should be avoided, because habitats can be only recognized by referring to the resources needed by a particular species. What is really measured in such researches is some form of “environmental heterogeneity”. Although habitat heterogeneity can be measured in various ways, most researches in island biogeography simply used the number of biotopes (typically classified as land cover categories). However, not all biotopes have the same surface.On the basis of the area occupied by each land cover category, it is possible to calculate indices of environmental diversity, evenness and dominance, as commonly done in community ecology research. These indices can be used to investigate the role of environmental diversity in determining species richness. We used the tenebrionid beetles inhabiting twenty-five small islands around Sicily (Central Mediterranean) to illustrate these concepts. We found that both area per se and environmental heterogeneity contributed to determine species richness. Moreover, we found that the relationship between species richness and environmental homogeneity followed a power function model. This indicates that environmental homogenization may determine a rapid, non linear decline in species richness. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-08-01T11:14:56Z 2015-01-01T00:00:00Z 2018-02-19T17:02:46Z |
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/10400.3/4586 |
url |
http://hdl.handle.net/10400.3/4586 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fattorini, S.; Dapporto, L.; Strona, G.; Borges, P.A.V. (2015). Calling for a new strategy to measure environmental (habitat) diversity in Island Biogeography: a case study of Mediterranean tenebrionids (Coleoptera, Tenebrionidae), “Fragmenta Entomologica”, 47(1): 1-14. DOI: 10.4081/fe.2015.129 2284-4880 10.4081/fe.2015.129 |
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 |
PAGEpress |
publisher.none.fl_str_mv |
PAGEpress |
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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130711917068288 |