Cost of territorial maintenance by Parodon nasus (Osteichthyes: Parodontidae) in a Neotropical stream
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
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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Neotropical ichthyology (Online) |
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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 |
_version_ |
1752122179151986688 |