A long-term study on crustacean plankton of a shallow tropical lake: the role of invertebrate predation

Detalhes bibliográficos
Autor(a) principal: Arcifa, Marlene S.
Data de Publicação: 2015
Outros Autores: Santos Ferreira, Tania C. dos, Fileto, Claudia, Maioli Castilho-Noll, Maria S. [UNESP], Bunioto, Tais C., Minto, Walter J.
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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spelling 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
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