Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior
ABSTRACT Crabs use burrows to prevent predation, environmental interference and shelter. The present study investigated the excavation behavior of the trichodactylid crab Dilocarcinus pagei, considering the biometric aspects of the burrows, the excavation time, the amount of bioturbation and the exc...
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| Lenguaje: | English |
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Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
2020
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oai:scielo:S0718-560X20200001000852020-05-25Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behaviorFernandes,Leandro S.Sant'Anna,Bruno S.Hattori,Gustavo Y. Dilocarcinus pagei Decapoda sediment crab behavior Neotropical region Amazon basin ABSTRACT Crabs use burrows to prevent predation, environmental interference and shelter. The present study investigated the excavation behavior of the trichodactylid crab Dilocarcinus pagei, considering the biometric aspects of the burrows, the excavation time, the amount of bioturbation and the excavation behavior of the two sexes. The burrows of males had a mean diameter larger than the females, although the depth was similar for both sexes. Females had higher bioturbation than males, and showed enlargement in a camera format at the bottom, even closing the entrance of the burrows with a “plug” after their construction. Both the camera and the presence of the “plug” in the burrows of the females may be associated with reproduction. The presence of pellets observed at the entrance of burrows is associated with the cleaning of the pereiopods by crabs after the excavation. The sequence of behaviors for the construction of the burrows is described in detail, contributing to the knowledge about the biology and ecology of freshwater crabs of the Amazon.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.48 n.1 20202020-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000100085en10.3856/vol48-issue1-fulltext-2325 |
| institution |
Scielo Chile |
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Scielo Chile |
| language |
English |
| topic |
Dilocarcinus pagei Decapoda sediment crab behavior Neotropical region Amazon basin |
| spellingShingle |
Dilocarcinus pagei Decapoda sediment crab behavior Neotropical region Amazon basin Fernandes,Leandro S. Sant'Anna,Bruno S. Hattori,Gustavo Y. Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| description |
ABSTRACT Crabs use burrows to prevent predation, environmental interference and shelter. The present study investigated the excavation behavior of the trichodactylid crab Dilocarcinus pagei, considering the biometric aspects of the burrows, the excavation time, the amount of bioturbation and the excavation behavior of the two sexes. The burrows of males had a mean diameter larger than the females, although the depth was similar for both sexes. Females had higher bioturbation than males, and showed enlargement in a camera format at the bottom, even closing the entrance of the burrows with a “plug” after their construction. Both the camera and the presence of the “plug” in the burrows of the females may be associated with reproduction. The presence of pellets observed at the entrance of burrows is associated with the cleaning of the pereiopods by crabs after the excavation. The sequence of behaviors for the construction of the burrows is described in detail, contributing to the knowledge about the biology and ecology of freshwater crabs of the Amazon. |
| author |
Fernandes,Leandro S. Sant'Anna,Bruno S. Hattori,Gustavo Y. |
| author_facet |
Fernandes,Leandro S. Sant'Anna,Bruno S. Hattori,Gustavo Y. |
| author_sort |
Fernandes,Leandro S. |
| title |
Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| title_short |
Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| title_full |
Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| title_fullStr |
Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| title_full_unstemmed |
Amazon freshwater crab Dilocarcinus pagei (Decapoda: Trichodactylidae): a view about burrow construction behavior |
| title_sort |
amazon freshwater crab dilocarcinus pagei (decapoda: trichodactylidae): a view about burrow construction behavior |
| publisher |
Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar |
| publishDate |
2020 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000100085 |
| work_keys_str_mv |
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