No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study
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Data de Publicação: | 2022 |
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Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/84551 |
Resumo: | Food provisioning for fish is a very common leisure activity, especially in tourist attractions, causing impacts that are still poorly understood. There are many species of territorial fish to whom energy availability can limit aggressiveness and population growth. Our case study evaluated whether food provisioning and the resulting population density modify aggressive behavior in a territorial cichlid, the Congo tilapia (Tilapia rendalli). We compared the aggressiveness between a population that receives large amounts of food and has high density and an unfed and low-density population. Aggressiveness was the same between provisioned and non-provisioned treatments, except when we offered food, which stimulated aggression in the unprovisioned area. Food provisioning by humans and density reduced nest area, but did not increase aggressiveness, suggesting a possible habituation to the presence of conspecifics and a reduction in competitive aggression. |
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No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case studyEfeito nulo do provisionamento antropogênico de alimento e da densidade populacional no comportamento agressivo de um ciclídeo territorial: um estudo de casoMeaningful learningphysics teachingreduced modelsflat articulated systems.Food provisioning for fish is a very common leisure activity, especially in tourist attractions, causing impacts that are still poorly understood. There are many species of territorial fish to whom energy availability can limit aggressiveness and population growth. Our case study evaluated whether food provisioning and the resulting population density modify aggressive behavior in a territorial cichlid, the Congo tilapia (Tilapia rendalli). We compared the aggressiveness between a population that receives large amounts of food and has high density and an unfed and low-density population. Aggressiveness was the same between provisioned and non-provisioned treatments, except when we offered food, which stimulated aggression in the unprovisioned area. Food provisioning by humans and density reduced nest area, but did not increase aggressiveness, suggesting a possible habituation to the presence of conspecifics and a reduction in competitive aggression.A oferta de alimentos para peixes é uma atividade de lazer muito comum, especialmente em atrações turísticas, causando impactos que ainda são pouco compreendidos. Existem muitas espécies de peixes territoriais para as quais a disponibilidade de energia pode limitar a agressividade e o crescimento populacional. Nosso estudo de caso avaliou se o provisionamento de alimentos e o adensamento populacional resultante modificam o comportamento agressivo em um ciclídeo territorial, a tilápia do Congo (Tilapia rendalli). Comparamos a agressividade entre uma população que recebe grandes quantidades de alimento e tem alta densidade e uma não alimentada e de baixa densidade. A agressividade foi igual entre grupos provisionados e não provisionados, exceto quando oferecemos alimentos, o que estimulava a agressão na área não provisionada. A oferta de alimento por humanos e a densidade reduziram a área dos ninhos, mas não aumentaram a agressividade, sugerindo uma possível habituação à presença de conspecíficos e uma redução da agressividade competitiva.Universidade Federal de Santa Catarina2022-02-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/8455110.5007/2175-7925.2022.e84551Biotemas; v. 35 n. 1 (2022); 1-102175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/biotemas/article/view/84551/48391Copyright (c) 2022 Rayan Pereira, Eduardo Bessahttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPereira, RayanBessa, Eduardo2022-08-29T17:59:18Zoai:periodicos.ufsc.br:article/84551Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2022-08-29T17:59:18Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study Efeito nulo do provisionamento antropogênico de alimento e da densidade populacional no comportamento agressivo de um ciclídeo territorial: um estudo de caso |
title |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
spellingShingle |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study Pereira, Rayan Meaningful learning physics teaching reduced models flat articulated systems. |
title_short |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
title_full |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
title_fullStr |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
title_full_unstemmed |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
title_sort |
No effect of anthropogenic food provisioning and population density on the aggressive behavior of a territorial Cichlid: a case study |
author |
Pereira, Rayan |
author_facet |
Pereira, Rayan Bessa, Eduardo |
author_role |
author |
author2 |
Bessa, Eduardo |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Pereira, Rayan Bessa, Eduardo |
dc.subject.por.fl_str_mv |
Meaningful learning physics teaching reduced models flat articulated systems. |
topic |
Meaningful learning physics teaching reduced models flat articulated systems. |
description |
Food provisioning for fish is a very common leisure activity, especially in tourist attractions, causing impacts that are still poorly understood. There are many species of territorial fish to whom energy availability can limit aggressiveness and population growth. Our case study evaluated whether food provisioning and the resulting population density modify aggressive behavior in a territorial cichlid, the Congo tilapia (Tilapia rendalli). We compared the aggressiveness between a population that receives large amounts of food and has high density and an unfed and low-density population. Aggressiveness was the same between provisioned and non-provisioned treatments, except when we offered food, which stimulated aggression in the unprovisioned area. Food provisioning by humans and density reduced nest area, but did not increase aggressiveness, suggesting a possible habituation to the presence of conspecifics and a reduction in competitive aggression. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-02-24 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/84551 10.5007/2175-7925.2022.e84551 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/84551 |
identifier_str_mv |
10.5007/2175-7925.2022.e84551 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/84551/48391 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Rayan Pereira, Eduardo Bessa http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Rayan Pereira, Eduardo Bessa 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 |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 35 n. 1 (2022); 1-10 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940554616733696 |