Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream

Detalhes bibliográficos
Autor(a) principal: Silva,Samuel Elias
Data de Publicação: 2009
Outros Autores: Assunção,Wilhan R. C., Duca,Charles, Penha,Jerry
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400017
Resumo: The combined demand over a certain resource may exceed its immediate supply, which can then lead to competition between individuals. This competition may result in territorial behavior. In this study we determine the density and spatial distribution, describe the interactions arising from territorial behavior and evaluate the costs of keeping the territories defended by adults of Parodon nasus. The study was conducted in Camarinha Stream located in the Serra das Araras Ecological Station, Porto Estrela, State of Mato Grosso, Brazil. The density was constant throughout the length of the stream, with a mean (± standard deviation) of 1.01 ind./m² (± 0.14). Our results show that the spatial distribution of individuals in the area ranged between uniform and random. The territories were defended more often against intraspecific than interspecific intruders. The time that the owners of the territories devoted to defending them was not influenced by the size of the territories. However, owners of larger territories spent more time foraging than owners of smaller territories. As a result, owners of larger territories had less time to rest than owners of smaller territories. The results of this study show behavioral patterns relevant to understanding the relationship between size and territorial maintenance cost of P. nasus and other species of fish with territorial behavior.
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spelling Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical streamSpatial distributionTerritory sizeForagingResting timeTerritory defenseThe combined demand over a certain resource may exceed its immediate supply, which can then lead to competition between individuals. This competition may result in territorial behavior. In this study we determine the density and spatial distribution, describe the interactions arising from territorial behavior and evaluate the costs of keeping the territories defended by adults of Parodon nasus. The study was conducted in Camarinha Stream located in the Serra das Araras Ecological Station, Porto Estrela, State of Mato Grosso, Brazil. The density was constant throughout the length of the stream, with a mean (± standard deviation) of 1.01 ind./m² (± 0.14). Our results show that the spatial distribution of individuals in the area ranged between uniform and random. The territories were defended more often against intraspecific than interspecific intruders. The time that the owners of the territories devoted to defending them was not influenced by the size of the territories. However, owners of larger territories spent more time foraging than owners of smaller territories. As a result, owners of larger territories had less time to rest than owners of smaller territories. The results of this study show behavioral patterns relevant to understanding the relationship between size and territorial maintenance cost of P. nasus and other species of fish with territorial behavior.Sociedade Brasileira de Ictiologia2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400017Neotropical Ichthyology v.7 n.4 2009reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252009000400017info:eu-repo/semantics/openAccessSilva,Samuel EliasAssunção,Wilhan R. C.Duca,CharlesPenha,Jerryeng2010-01-18T00:00:00Zoai:scielo:S1679-62252009000400017Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2010-01-18T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
title Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
spellingShingle Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
Silva,Samuel Elias
Spatial distribution
Territory size
Foraging
Resting time
Territory defense
title_short Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
title_full Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
title_fullStr Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
title_full_unstemmed Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
title_sort Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
author Silva,Samuel Elias
author_facet Silva,Samuel Elias
Assunção,Wilhan R. C.
Duca,Charles
Penha,Jerry
author_role author
author2 Assunção,Wilhan R. C.
Duca,Charles
Penha,Jerry
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva,Samuel Elias
Assunção,Wilhan R. C.
Duca,Charles
Penha,Jerry
dc.subject.por.fl_str_mv Spatial distribution
Territory size
Foraging
Resting time
Territory defense
topic Spatial distribution
Territory size
Foraging
Resting time
Territory defense
description The combined demand over a certain resource may exceed its immediate supply, which can then lead to competition between individuals. This competition may result in territorial behavior. In this study we determine the density and spatial distribution, describe the interactions arising from territorial behavior and evaluate the costs of keeping the territories defended by adults of Parodon nasus. The study was conducted in Camarinha Stream located in the Serra das Araras Ecological Station, Porto Estrela, State of Mato Grosso, Brazil. The density was constant throughout the length of the stream, with a mean (± standard deviation) of 1.01 ind./m² (± 0.14). Our results show that the spatial distribution of individuals in the area ranged between uniform and random. The territories were defended more often against intraspecific than interspecific intruders. The time that the owners of the territories devoted to defending them was not influenced by the size of the territories. However, owners of larger territories spent more time foraging than owners of smaller territories. As a result, owners of larger territories had less time to rest than owners of smaller territories. The results of this study show behavioral patterns relevant to understanding the relationship between size and territorial maintenance cost of P. nasus and other species of fish with territorial behavior.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1679-62252009000400017
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.7 n.4 2009
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
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