Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Papéis Avulsos de Zoologia (Online) |
Texto Completo: | https://www.revistas.usp.br/paz/article/view/121253 |
Resumo: | Land planarians (Platyhelminthes) are likely important components of the soil cryptofauna, although relevant aspects of their ecology such as their density remain largely unstudied. We investigated absolute and relative densities of flatworms in three patches of secondary Brazilian Atlantic rainforest in an urban environment. Two methods of sampling were carried out, one consisting of 90 hours of active search in delimited plots covering 6,000 m² over a year, and the other consisting of leaf litter extraction from a 60 m² soil area, totaling 480‑600 l leaf litter. We found 288 specimens of 16 species belonging to the genera Geobia, Geoplana, Issoca, Luteostriata, Obama, Paraba, Pasipha, Rhynchodemus, Xerapoa, and the exotic species Bipalium kewense and Dolichoplana striata. Specimens up to 10 mm long were mostly sampled only with the leaf litter extraction method. Absolute densities, calculated from data obtained with leaf litter extraction, ranged between 1.25 and 2.10 individuals m‑². These values are 30 to 161 times higher than relative densities, calculated from data obtained by active search. Since most common sampling method used in land planarian studies on species composition and faunal inventories is active search for a few hours in a locality, our results suggest that small species might be overlooked. It remains to be tested whether similar densities of this cryptofauna are also found in primary forests. |
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Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patchesGeoplaninaeBerlese funnelSoil faunaCryptofaunaRichnessManual sampling.Land planarians (Platyhelminthes) are likely important components of the soil cryptofauna, although relevant aspects of their ecology such as their density remain largely unstudied. We investigated absolute and relative densities of flatworms in three patches of secondary Brazilian Atlantic rainforest in an urban environment. Two methods of sampling were carried out, one consisting of 90 hours of active search in delimited plots covering 6,000 m² over a year, and the other consisting of leaf litter extraction from a 60 m² soil area, totaling 480‑600 l leaf litter. We found 288 specimens of 16 species belonging to the genera Geobia, Geoplana, Issoca, Luteostriata, Obama, Paraba, Pasipha, Rhynchodemus, Xerapoa, and the exotic species Bipalium kewense and Dolichoplana striata. Specimens up to 10 mm long were mostly sampled only with the leaf litter extraction method. Absolute densities, calculated from data obtained with leaf litter extraction, ranged between 1.25 and 2.10 individuals m‑². These values are 30 to 161 times higher than relative densities, calculated from data obtained by active search. Since most common sampling method used in land planarian studies on species composition and faunal inventories is active search for a few hours in a locality, our results suggest that small species might be overlooked. It remains to be tested whether similar densities of this cryptofauna are also found in primary forests.Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2016-09-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/xmlhttps://www.revistas.usp.br/paz/article/view/12125310.1590/0031-1049.2016.56.03Papéis Avulsos de Zoologia; v. 56 n. 3 (2016); 27-32Papéis Avulsos de Zoologia; Vol. 56 Núm. 3 (2016); 27-32Papéis Avulsos de Zoologia; Vol. 56 No. 3 (2016); 27-321807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/121253/118208https://www.revistas.usp.br/paz/article/view/121253/151686Copyright (c) 2016 Papéis Avulsos de Zoologiainfo:eu-repo/semantics/openAccessCarbayo, FernandoMatarensi Junior, OdairJucá, Marília2019-03-27T16:48:39Zoai:revistas.usp.br:article/121253Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:41:47.223742Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
title |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
spellingShingle |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches Carbayo, Fernando Geoplaninae Berlese funnel Soil fauna Cryptofauna Richness Manual sampling. |
title_short |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
title_full |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
title_fullStr |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
title_full_unstemmed |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
title_sort |
Relative and absolute density estimates of land planarians (Platyhelminthes, Tricladida) in urban rainforest patches |
author |
Carbayo, Fernando |
author_facet |
Carbayo, Fernando Matarensi Junior, Odair Jucá, Marília |
author_role |
author |
author2 |
Matarensi Junior, Odair Jucá, Marília |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carbayo, Fernando Matarensi Junior, Odair Jucá, Marília |
dc.subject.por.fl_str_mv |
Geoplaninae Berlese funnel Soil fauna Cryptofauna Richness Manual sampling. |
topic |
Geoplaninae Berlese funnel Soil fauna Cryptofauna Richness Manual sampling. |
description |
Land planarians (Platyhelminthes) are likely important components of the soil cryptofauna, although relevant aspects of their ecology such as their density remain largely unstudied. We investigated absolute and relative densities of flatworms in three patches of secondary Brazilian Atlantic rainforest in an urban environment. Two methods of sampling were carried out, one consisting of 90 hours of active search in delimited plots covering 6,000 m² over a year, and the other consisting of leaf litter extraction from a 60 m² soil area, totaling 480‑600 l leaf litter. We found 288 specimens of 16 species belonging to the genera Geobia, Geoplana, Issoca, Luteostriata, Obama, Paraba, Pasipha, Rhynchodemus, Xerapoa, and the exotic species Bipalium kewense and Dolichoplana striata. Specimens up to 10 mm long were mostly sampled only with the leaf litter extraction method. Absolute densities, calculated from data obtained with leaf litter extraction, ranged between 1.25 and 2.10 individuals m‑². These values are 30 to 161 times higher than relative densities, calculated from data obtained by active search. Since most common sampling method used in land planarian studies on species composition and faunal inventories is active search for a few hours in a locality, our results suggest that small species might be overlooked. It remains to be tested whether similar densities of this cryptofauna are also found in primary forests. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-28 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/paz/article/view/121253 10.1590/0031-1049.2016.56.03 |
url |
https://www.revistas.usp.br/paz/article/view/121253 |
identifier_str_mv |
10.1590/0031-1049.2016.56.03 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/paz/article/view/121253/118208 https://www.revistas.usp.br/paz/article/view/121253/151686 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 Papéis Avulsos de Zoologia info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 Papéis Avulsos de Zoologia |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/xml |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). |
publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). |
dc.source.none.fl_str_mv |
Papéis Avulsos de Zoologia; v. 56 n. 3 (2016); 27-32 Papéis Avulsos de Zoologia; Vol. 56 Núm. 3 (2016); 27-32 Papéis Avulsos de Zoologia; Vol. 56 No. 3 (2016); 27-32 1807-0205 0031-1049 reponame:Papéis Avulsos de Zoologia (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Papéis Avulsos de Zoologia (Online) |
collection |
Papéis Avulsos de Zoologia (Online) |
repository.name.fl_str_mv |
Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
publicacaomz@usp.br ; einicker@usp.br |
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1797051527798456320 |