Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)?
Aratus pisonii is one of the most common crab species in Neotropical mangroves. It shows great plasticity in its life history traits, which makes it an interesting subject for comparative studies. This study evaluated the morphometric variability in five populations of A. pisonii inhabiting mangrove...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2016-09-01
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| Series: | Scientia Marina |
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| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1646 |
| _version_ | 1818940615459602432 |
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| author | Beatriz López-Sánchez Enrique Quintero-Torres Adriana Oliveiras-Durand |
| author_facet | Beatriz López-Sánchez Enrique Quintero-Torres Adriana Oliveiras-Durand |
| author_sort | Beatriz López-Sánchez |
| collection | DOAJ |
| description | Aratus pisonii is one of the most common crab species in Neotropical mangroves. It shows great plasticity in its life history traits, which makes it an interesting subject for comparative studies. This study evaluated the morphometric variability in five populations of A. pisonii inhabiting mangroves with different degrees of structural development under contrasting environmental conditions. Mangrove forests located on the northwest coast of Venezuela were studied during the rainy season in 2006. The results showed morphometric differences and interaction between sampling sites and sex (PERMANOVA, P=0.0001), as well as the presence of five morphological groups in males and four in females. The findings support the existence of sexual dimorphism. Females from the dwarf hypersaline mangrove showed a wide variability associated with the chelipeds. The differences in crab morphology between sites seem to be related to a combination of environmental factors that is unique for each habitat, leading to the formation of different morphological groups, in which the mangrove structural development (resource availability) and salinity (which compromises the energy budget) play an important role. The presence of more robust chelipeds in females from the dwarf hypersaline mangrove seems to reflect an adaptation to the biomechanical properties of the leaves (sclerophylly). |
| first_indexed | 2024-12-20T06:42:28Z |
| format | Article |
| id | doaj.art-0dc0dd77f09048899e8f983b9e1a55a9 |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-20T06:42:28Z |
| publishDate | 2016-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-0dc0dd77f09048899e8f983b9e1a55a92022-12-21T19:49:48ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342016-09-0180334935810.3989/scimar.04427.27A1617Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)?Beatriz López-Sánchez0Enrique Quintero-Torres1Adriana Oliveiras-Durand2Laboratorio de Ecología y Genética de Poblaciones, Centro de Ecología, Instituto Venezolano de Investigaciones CientíficasLaboratorio de Ecología y Genética de Poblaciones, Centro de Ecología, Instituto Venezolano de Investigaciones CientíficasLaboratorio de Ecología y Genética de Poblaciones, Centro de Ecología, Instituto Venezolano de Investigaciones CientíficasAratus pisonii is one of the most common crab species in Neotropical mangroves. It shows great plasticity in its life history traits, which makes it an interesting subject for comparative studies. This study evaluated the morphometric variability in five populations of A. pisonii inhabiting mangroves with different degrees of structural development under contrasting environmental conditions. Mangrove forests located on the northwest coast of Venezuela were studied during the rainy season in 2006. The results showed morphometric differences and interaction between sampling sites and sex (PERMANOVA, P=0.0001), as well as the presence of five morphological groups in males and four in females. The findings support the existence of sexual dimorphism. Females from the dwarf hypersaline mangrove showed a wide variability associated with the chelipeds. The differences in crab morphology between sites seem to be related to a combination of environmental factors that is unique for each habitat, leading to the formation of different morphological groups, in which the mangrove structural development (resource availability) and salinity (which compromises the energy budget) play an important role. The presence of more robust chelipeds in females from the dwarf hypersaline mangrove seems to reflect an adaptation to the biomechanical properties of the leaves (sclerophylly).http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1646mangrove crabclassic morphometrysexual dimorphismmultivariate methodschelipeds |
| spellingShingle | Beatriz López-Sánchez Enrique Quintero-Torres Adriana Oliveiras-Durand Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? Scientia Marina mangrove crab classic morphometry sexual dimorphism multivariate methods chelipeds |
| title | Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? |
| title_full | Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? |
| title_fullStr | Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? |
| title_full_unstemmed | Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? |
| title_short | Can contrasting environmental conditions of mangroves induce morphological variability in Aratus pisonii (Crustacea: Brachyura: Sesarmidae)? |
| title_sort | can contrasting environmental conditions of mangroves induce morphological variability in aratus pisonii crustacea brachyura sesarmidae |
| topic | mangrove crab classic morphometry sexual dimorphism multivariate methods chelipeds |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1646 |
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