The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments

Changes in species composition and an increase in the probability of local or regional extinctions alone are considered alarming consequences of human disturbances. However, these changes bring other damages that have passed unnoticed by scientists, such as the loss of ecological interactions. In th...

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Autores principales: Fabio Souto Almeida, Antonio José Mayhe-Nunes, Jarbas M Queiroz
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Publicado: Universidade Estadual de Feira de Santana 2013
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Acceso en línea:https://doaj.org/article/24101d2e497043d08c71e2b2a9391bc1
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spelling oai:doaj.org-article:24101d2e497043d08c71e2b2a9391bc12021-12-02T12:27:39ZThe Importance of Poneromorph Ants for Seed Dispersal in Altered Environments0361-652510.13102/sociobiology.v60i3.229-235https://doaj.org/article/24101d2e497043d08c71e2b2a9391bc12013-11-01T00:00:00Zhttp://periodicos.uefs.br/ojs/index.php/sociobiology/article/view/172https://doaj.org/toc/0361-6525Changes in species composition and an increase in the probability of local or regional extinctions alone are considered alarming consequences of human disturbances. However, these changes bring other damages that have passed unnoticed by scientists, such as the loss of ecological interactions. In the present study, we assessed fragments of secondary forest and pastures focusing on two aspects of the seed dispersal process: removal rate and dispersal distance. We collected data in forest fragments named Forest 1 (6 ha), Forest 2 (36 ha), and Forest 3 (780 ha), and in a pasture in the municipality of Vassouras, Rio de Janeiro, southeastern Brazil. In each site, we established 40 observation stations containing six seeds of <em>Carica papaya</em> L. (papaya) and monitored seed removal for 2 h at each station. Seventeen ant species removed a total of 316 seeds (32.92% of the seeds). The species that removed the highest number of seeds was <em>Pachycondyla striata</em> Fr. Smith, followed by <em>Odontomachus chelifer</em> (Latreille). The seed removal rate was significantly higher (P &lt; 0.05, Tukey test) in the forest fragment where larger species were more frequent. The average removal distance was significantly longer in two out of three forest fragments (P &lt; 0.05, Tukey test). Larger ants removed more seeds and for longer distances. Hence, seed dispersal was increased by the presence of large-bodied ant species and their high frequency in forest fragments seed dispersal.Fabio Souto AlmeidaAntonio José Mayhe-NunesJarbas M QueirozUniversidade Estadual de Feira de Santanaarticlebiodiversitycommunitiesdiasporesmyrmecochoryhuman disturbancesZoologyQL1-991EcologyQH540-549.5Natural history (General)QH1-278.5ENSociobiology, Vol 60, Iss 3, Pp 229-235 (2013)
institution DOAJ
collection DOAJ
language EN
topic biodiversity
communities
diaspores
myrmecochory
human disturbances
Zoology
QL1-991
Ecology
QH540-549.5
Natural history (General)
QH1-278.5
spellingShingle biodiversity
communities
diaspores
myrmecochory
human disturbances
Zoology
QL1-991
Ecology
QH540-549.5
Natural history (General)
QH1-278.5
Fabio Souto Almeida
Antonio José Mayhe-Nunes
Jarbas M Queiroz
The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
description Changes in species composition and an increase in the probability of local or regional extinctions alone are considered alarming consequences of human disturbances. However, these changes bring other damages that have passed unnoticed by scientists, such as the loss of ecological interactions. In the present study, we assessed fragments of secondary forest and pastures focusing on two aspects of the seed dispersal process: removal rate and dispersal distance. We collected data in forest fragments named Forest 1 (6 ha), Forest 2 (36 ha), and Forest 3 (780 ha), and in a pasture in the municipality of Vassouras, Rio de Janeiro, southeastern Brazil. In each site, we established 40 observation stations containing six seeds of <em>Carica papaya</em> L. (papaya) and monitored seed removal for 2 h at each station. Seventeen ant species removed a total of 316 seeds (32.92% of the seeds). The species that removed the highest number of seeds was <em>Pachycondyla striata</em> Fr. Smith, followed by <em>Odontomachus chelifer</em> (Latreille). The seed removal rate was significantly higher (P &lt; 0.05, Tukey test) in the forest fragment where larger species were more frequent. The average removal distance was significantly longer in two out of three forest fragments (P &lt; 0.05, Tukey test). Larger ants removed more seeds and for longer distances. Hence, seed dispersal was increased by the presence of large-bodied ant species and their high frequency in forest fragments seed dispersal.
format article
author Fabio Souto Almeida
Antonio José Mayhe-Nunes
Jarbas M Queiroz
author_facet Fabio Souto Almeida
Antonio José Mayhe-Nunes
Jarbas M Queiroz
author_sort Fabio Souto Almeida
title The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
title_short The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
title_full The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
title_fullStr The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
title_full_unstemmed The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
title_sort importance of poneromorph ants for seed dispersal in altered environments
publisher Universidade Estadual de Feira de Santana
publishDate 2013
url https://doaj.org/article/24101d2e497043d08c71e2b2a9391bc1
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