A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4081/jlimnol.2015.1132 http://hdl.handle.net/11449/160932 |
Resumo: | The primary factor that governs the size and species composition of zooplankton is still a controversial issue and temperature is considered the main factor responsible for latitudinal differences. In waters with a narrow temperature range, such as in the tropics, predation may be a more important factor. Nearly three decades of intermittent studies of the crustacean plankton in a shallow tropical lake revealed that the main event that led to their restructuring was the appearance of a second predator, the water mite Krendowskia sp. The new predator and larvae of the dipteran Chaoborus brasiliensis Theobald exerted a combined, although asymmetrical effect on microcrustaceans. The period when the mite was detected was followed by the restructuring of the crustacean plankton community. Predation by these two invertebrates emerged as the factor responsible for community changes, involving an increased contribution of copepods and decreases in the relative abundance of smaller cladoceran species. In the short term, the mite caused a decrease in species richness and the annual mean instantaneous composition of cladocerans, a predominance of large-sized species (Daphnia ambigua Scourfield and Daphnia gessneri Herbst) and the virtual disappearance of small species (e. g., Bosmina tubicen Brehm). The long-term impact resulted in increased species richness and the dominance of large and medium-sized cladocerans, such as D. gessneri and Ceriodaphnia richardi Sars. The larger body size of three cladocerans, the two Daphnia species and B. tubicen, in the long term, may be a response to the dominant predator, Chaoborus. The seasonal variation in the predator abundance, mainly Chaoborus larvae, allowed the prey to recover during the cool season. The copepods Tropocyclops prasinus meridionalis (Fischer) and Thermocyclops decipiens Kiefer were less affected by predation than the cladocerans; their contribution to the crustacean plankton increased 12-28% after the mite appeared. The top-down effect on crustacean plankton did not affect the phytoplankton, which remained dominated by chlorophyceans and the nanoplankton fraction before and after the zooplankton community restructuring. |
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A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predationCopepodscladoceranschaoboridwater mitespecies and size compositionThe primary factor that governs the size and species composition of zooplankton is still a controversial issue and temperature is considered the main factor responsible for latitudinal differences. In waters with a narrow temperature range, such as in the tropics, predation may be a more important factor. Nearly three decades of intermittent studies of the crustacean plankton in a shallow tropical lake revealed that the main event that led to their restructuring was the appearance of a second predator, the water mite Krendowskia sp. The new predator and larvae of the dipteran Chaoborus brasiliensis Theobald exerted a combined, although asymmetrical effect on microcrustaceans. The period when the mite was detected was followed by the restructuring of the crustacean plankton community. Predation by these two invertebrates emerged as the factor responsible for community changes, involving an increased contribution of copepods and decreases in the relative abundance of smaller cladoceran species. In the short term, the mite caused a decrease in species richness and the annual mean instantaneous composition of cladocerans, a predominance of large-sized species (Daphnia ambigua Scourfield and Daphnia gessneri Herbst) and the virtual disappearance of small species (e. g., Bosmina tubicen Brehm). The long-term impact resulted in increased species richness and the dominance of large and medium-sized cladocerans, such as D. gessneri and Ceriodaphnia richardi Sars. The larger body size of three cladocerans, the two Daphnia species and B. tubicen, in the long term, may be a response to the dominant predator, Chaoborus. The seasonal variation in the predator abundance, mainly Chaoborus larvae, allowed the prey to recover during the cool season. The copepods Tropocyclops prasinus meridionalis (Fischer) and Thermocyclops decipiens Kiefer were less affected by predation than the cladocerans; their contribution to the crustacean plankton increased 12-28% after the mite appeared. The top-down effect on crustacean plankton did not affect the phytoplankton, which remained dominated by chlorophyceans and the nanoplankton fraction before and after the zooplankton community restructuring.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Program for Graduate Students of the universityUniv Sao Paulo, Dept Biol, BR-14040901 Ribeirao Preto, BrazilUniv Sao Paulo, CRHEA, NEEA, BR-13560970 Sao Carlos, SP, BrazilUniv Estadual Paulista, Dept Zool & Bot, BR-15054000 Sao Jose Do Rio Preto, BrazilUniv Estadual Paulista, Dept Zool & Bot, BR-15054000 Sao Jose Do Rio Preto, BrazilFAPESP: 97/10407-6Pagepress PublUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Arcifa, Marlene S.Santos Ferreira, Tania C. dosFileto, ClaudiaMaioli Castilho-Noll, Maria S. [UNESP]Bunioto, Tais C.Minto, Walter J.2018-11-26T16:17:18Z2018-11-26T16:17:18Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article606-617application/pdfhttp://dx.doi.org/10.4081/jlimnol.2015.1132Journal Of Limnology. Pavia: Pagepress Publ, v. 74, n. 3, p. 606-617, 2015.1129-5767http://hdl.handle.net/11449/16093210.4081/jlimnol.2015.1132WOS:000363903200018WOS000363903200018.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Limnology0,632info:eu-repo/semantics/openAccess2023-11-05T06:09:37Zoai:repositorio.unesp.br:11449/160932Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:58:51.796889Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
title |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
spellingShingle |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation Arcifa, Marlene S. Copepods cladocerans chaoborid water mite species and size composition |
title_short |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
title_full |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
title_fullStr |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
title_full_unstemmed |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
title_sort |
A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation |
author |
Arcifa, Marlene S. |
author_facet |
Arcifa, Marlene S. Santos Ferreira, Tania C. dos Fileto, Claudia Maioli Castilho-Noll, Maria S. [UNESP] Bunioto, Tais C. Minto, Walter J. |
author_role |
author |
author2 |
Santos Ferreira, Tania C. dos Fileto, Claudia Maioli Castilho-Noll, Maria S. [UNESP] Bunioto, Tais C. Minto, Walter J. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Arcifa, Marlene S. Santos Ferreira, Tania C. dos Fileto, Claudia Maioli Castilho-Noll, Maria S. [UNESP] Bunioto, Tais C. Minto, Walter J. |
dc.subject.por.fl_str_mv |
Copepods cladocerans chaoborid water mite species and size composition |
topic |
Copepods cladocerans chaoborid water mite species and size composition |
description |
The primary factor that governs the size and species composition of zooplankton is still a controversial issue and temperature is considered the main factor responsible for latitudinal differences. In waters with a narrow temperature range, such as in the tropics, predation may be a more important factor. Nearly three decades of intermittent studies of the crustacean plankton in a shallow tropical lake revealed that the main event that led to their restructuring was the appearance of a second predator, the water mite Krendowskia sp. The new predator and larvae of the dipteran Chaoborus brasiliensis Theobald exerted a combined, although asymmetrical effect on microcrustaceans. The period when the mite was detected was followed by the restructuring of the crustacean plankton community. Predation by these two invertebrates emerged as the factor responsible for community changes, involving an increased contribution of copepods and decreases in the relative abundance of smaller cladoceran species. In the short term, the mite caused a decrease in species richness and the annual mean instantaneous composition of cladocerans, a predominance of large-sized species (Daphnia ambigua Scourfield and Daphnia gessneri Herbst) and the virtual disappearance of small species (e. g., Bosmina tubicen Brehm). The long-term impact resulted in increased species richness and the dominance of large and medium-sized cladocerans, such as D. gessneri and Ceriodaphnia richardi Sars. The larger body size of three cladocerans, the two Daphnia species and B. tubicen, in the long term, may be a response to the dominant predator, Chaoborus. The seasonal variation in the predator abundance, mainly Chaoborus larvae, allowed the prey to recover during the cool season. The copepods Tropocyclops prasinus meridionalis (Fischer) and Thermocyclops decipiens Kiefer were less affected by predation than the cladocerans; their contribution to the crustacean plankton increased 12-28% after the mite appeared. The top-down effect on crustacean plankton did not affect the phytoplankton, which remained dominated by chlorophyceans and the nanoplankton fraction before and after the zooplankton community restructuring. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2018-11-26T16:17:18Z 2018-11-26T16:17:18Z |
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://dx.doi.org/10.4081/jlimnol.2015.1132 Journal Of Limnology. Pavia: Pagepress Publ, v. 74, n. 3, p. 606-617, 2015. 1129-5767 http://hdl.handle.net/11449/160932 10.4081/jlimnol.2015.1132 WOS:000363903200018 WOS000363903200018.pdf |
url |
http://dx.doi.org/10.4081/jlimnol.2015.1132 http://hdl.handle.net/11449/160932 |
identifier_str_mv |
Journal Of Limnology. Pavia: Pagepress Publ, v. 74, n. 3, p. 606-617, 2015. 1129-5767 10.4081/jlimnol.2015.1132 WOS:000363903200018 WOS000363903200018.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Limnology 0,632 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
606-617 application/pdf |
dc.publisher.none.fl_str_mv |
Pagepress Publ |
publisher.none.fl_str_mv |
Pagepress Publ |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128728487690240 |