Trophic dynamics in a neotropical limestone cave
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/40180 |
Resumo: | The temporal budgets of the input, retainment and use by invertebrates of detritus and root tufts were evaluated in a short tropical limestone cave (337 m long). Detritus penetrate only through the stream in lower quantities in the dry season, contrary to what happens in the rainy season. However, water transport energies in the rainy season prevent detritus retainment. Roots tufts that emerge from the bottom of the stream provide shelter and food for several species. The abundance (log10) (R2 = 0.63; P < 0.02) and richness (log10) (R2 = 0.63; P < 0.01) related positively with the root tuft biomass (log10). In the terrestrial environment (ground), guano is the main secondary resource available for the invertebrates; the constant production of this resource has shown to influence the structure and distribution of invertebrates. Unfavorable temperature conditions and, especially low soil moisture, promote low plant detritus consumption rates. Historically, different authors assumed that organic resources imported by water are more available in caves in rainy seasons. It is clear that the importation of organic detritus in the rainy season is higher than in the dry season, but as shown in this work, the stochastic pulse flows continually disturb and remove the previously accumulated resource. So, the food that is truly used by the cave communities is that transported at the end of the rainy season (and during all the dry season) that becomes available for the cave fauna. The cave functionality depends, so, directly of the epigean food resources. |
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Trophic dynamics in a neotropical limestone caveCavesInvertebratesOrganic matterResource availabilityTrophic budgetsThe temporal budgets of the input, retainment and use by invertebrates of detritus and root tufts were evaluated in a short tropical limestone cave (337 m long). Detritus penetrate only through the stream in lower quantities in the dry season, contrary to what happens in the rainy season. However, water transport energies in the rainy season prevent detritus retainment. Roots tufts that emerge from the bottom of the stream provide shelter and food for several species. The abundance (log10) (R2 = 0.63; P < 0.02) and richness (log10) (R2 = 0.63; P < 0.01) related positively with the root tuft biomass (log10). In the terrestrial environment (ground), guano is the main secondary resource available for the invertebrates; the constant production of this resource has shown to influence the structure and distribution of invertebrates. Unfavorable temperature conditions and, especially low soil moisture, promote low plant detritus consumption rates. Historically, different authors assumed that organic resources imported by water are more available in caves in rainy seasons. It is clear that the importation of organic detritus in the rainy season is higher than in the dry season, but as shown in this work, the stochastic pulse flows continually disturb and remove the previously accumulated resource. So, the food that is truly used by the cave communities is that transported at the end of the rainy season (and during all the dry season) that becomes available for the cave fauna. The cave functionality depends, so, directly of the epigean food resources.Pensoft2020-04-18T02:50:34Z2020-04-18T02:50:34Z2011-12-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSILVA, M.; MARTINS, R. P.; FERREIRA, R. L. Trophic dynamics in a neotropical limestone cave. Subterranean Biology, [S.l.], v. 9, p. 127-138, Dec. 2011. DOI: 10.3897/subtbiol.9.2515.http://repositorio.ufla.br/jspui/handle/1/40180Subterranean Biologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessSilva, MarconiMartins, Rogério ParentoniFerreira, Rodrigo Lopeseng2020-04-18T02:50:34Zoai:localhost:1/40180Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-04-18T02:50:34Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Trophic dynamics in a neotropical limestone cave |
title |
Trophic dynamics in a neotropical limestone cave |
spellingShingle |
Trophic dynamics in a neotropical limestone cave Silva, Marconi Caves Invertebrates Organic matter Resource availability Trophic budgets |
title_short |
Trophic dynamics in a neotropical limestone cave |
title_full |
Trophic dynamics in a neotropical limestone cave |
title_fullStr |
Trophic dynamics in a neotropical limestone cave |
title_full_unstemmed |
Trophic dynamics in a neotropical limestone cave |
title_sort |
Trophic dynamics in a neotropical limestone cave |
author |
Silva, Marconi |
author_facet |
Silva, Marconi Martins, Rogério Parentoni Ferreira, Rodrigo Lopes |
author_role |
author |
author2 |
Martins, Rogério Parentoni Ferreira, Rodrigo Lopes |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Marconi Martins, Rogério Parentoni Ferreira, Rodrigo Lopes |
dc.subject.por.fl_str_mv |
Caves Invertebrates Organic matter Resource availability Trophic budgets |
topic |
Caves Invertebrates Organic matter Resource availability Trophic budgets |
description |
The temporal budgets of the input, retainment and use by invertebrates of detritus and root tufts were evaluated in a short tropical limestone cave (337 m long). Detritus penetrate only through the stream in lower quantities in the dry season, contrary to what happens in the rainy season. However, water transport energies in the rainy season prevent detritus retainment. Roots tufts that emerge from the bottom of the stream provide shelter and food for several species. The abundance (log10) (R2 = 0.63; P < 0.02) and richness (log10) (R2 = 0.63; P < 0.01) related positively with the root tuft biomass (log10). In the terrestrial environment (ground), guano is the main secondary resource available for the invertebrates; the constant production of this resource has shown to influence the structure and distribution of invertebrates. Unfavorable temperature conditions and, especially low soil moisture, promote low plant detritus consumption rates. Historically, different authors assumed that organic resources imported by water are more available in caves in rainy seasons. It is clear that the importation of organic detritus in the rainy season is higher than in the dry season, but as shown in this work, the stochastic pulse flows continually disturb and remove the previously accumulated resource. So, the food that is truly used by the cave communities is that transported at the end of the rainy season (and during all the dry season) that becomes available for the cave fauna. The cave functionality depends, so, directly of the epigean food resources. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-30 2020-04-18T02:50:34Z 2020-04-18T02:50:34Z |
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 |
SILVA, M.; MARTINS, R. P.; FERREIRA, R. L. Trophic dynamics in a neotropical limestone cave. Subterranean Biology, [S.l.], v. 9, p. 127-138, Dec. 2011. DOI: 10.3897/subtbiol.9.2515. http://repositorio.ufla.br/jspui/handle/1/40180 |
identifier_str_mv |
SILVA, M.; MARTINS, R. P.; FERREIRA, R. L. Trophic dynamics in a neotropical limestone cave. Subterranean Biology, [S.l.], v. 9, p. 127-138, Dec. 2011. DOI: 10.3897/subtbiol.9.2515. |
url |
http://repositorio.ufla.br/jspui/handle/1/40180 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pensoft |
publisher.none.fl_str_mv |
Pensoft |
dc.source.none.fl_str_mv |
Subterranean Biology reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835138113929216 |