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| Aires, Tania; Moalic, Yann; Serrao, Ester; Arnaud-haond, Sophie. |
| The siphonous algae of the Caulerpa genus harbor internal microbial communities hypothesized to play important roles in development, defense and metabolic activities of the host. Here, we characterize the endophytic bacterial community of four Caulerpa taxa in the Mediterranean Sea, through 16S rRNA amplicon sequencing. Results reveal a striking alpha diversity of the bacterial communities, similar to levels found in sponges and coral holobionts. These comprise (1) a very small core community shared across all hosts (< 1% of the total community), (2) a variable portion (ca. 25%) shared by some Caulerpa taxa but not by all, which might represent environmentally acquired bacteria and (3) a large (> 70%) species-specific fraction of the community,... |
| Tipo: Text |
Palavras-chave: Endophytic bacteria; Bacterial community; Cooccurrence network; Modularity; Coevolution. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00277/38800/37699.pdf |
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| Urbanová,Petra; Hejna,Petr; Zátopková,Lenka; Safr,Miroslav. |
| Morphological variation is a result of interplay among multiple intervening factors. For hyoid bones, the shape and size differences have been scarcely covered in the literature and in majority limited to studies of sexual dimorphism or age dependency. To our knowledge, the human hyoid bone, in complete opposite to other cranial bones, has not been fully utilized to address development questions in terms of asymmetry or modularity. In the present paper, we used landmark-based methods of geometric morphometrics and multivariate statistical approach to study human hyoid morphology represented by the hyoid body and greater horns in a sample of 211 fused and non-fused bones. Within a sample variation analysis, we showed that the hyoid bone is, by nature,... |
| Tipo: Journal article |
Palavras-chave: Hyoid bone; Asymmetry; Modularity; Geometric morphometrics. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100042 |
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| Sarmento,Raissa; Alves-Costa,Cecília P.; Ayub,Adriana; Mello,Marco A.R.. |
| Community-level network studies suggest that seed dispersal networks may share some universal properties with other complex systems. However, most of the datasets used so far in those studies have been strongly biased towards temperate birds, including not only dispersers, but also seed predators. Recent evidence from multi-taxon networks suggests that seed dispersal networks are not all alike and may be more complex than previously thought. Here, we used network theory to evaluate seed dispersal in a strongly impacted Atlantic Forest fragment in northeastern Brazil, where bats and birds are the only extant dispersers. We hypothesized that the seed dispersal network should be more modular then nested, and that the dispersers should segregate their services... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet overlap; Frugivory; Modularity; Nestedness; Networks. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000300006 |
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