Paleoethology : fossilized behaviours in amber

When organisms became trapped in sticky resin they usually expired so quickly that they could fossilize in almost lifelike circumstances. Based on frequent description in literature of many examples we propose in this paper a classification of these paleobehaviours

Paleoethology: fossilized behaviours in amber

When organisms became trapped in sticky resin they usually expired so quickly that they could fossilize in almost lifelike circumstances. Based on frequent description in literature of many examples we propose in this paper a classification of these paleobehaviours

Magnetic, electronic and vibrational properties of metal and fluorinated metal phthalocyanines

The magnetic and electronic properties of metal phthalocyanines (MPc) and fluorinated metal phthalocyanines (F$_{16}$MPc) are studied by means of spin density functional theory (SDFT). Several metals (M) such as Ca, all first d-row transition metals and Ag are investigated. By considering different open shell transition metals it is possible to tune the electronic properties of MPc, in particular the electronic molecular gap and total magnetic moment. Besides assigning the structural and electronic properties of MPc and F$_{16}$MPc, the vibrational modes analysis of the ScPc\textendash ZnPc series have been studied and correlated to experimental measurements when available.Comment: 28 pages (preprint style), several figure

Los Multioppiinae del sur de España II. El género Ramusella con descripción de una nueva especie (Acari, Oribatida, Oppiidae)

In this paper species belonging to the genus Ramusella Hammer, 1962 from the South of Spain are studied. A new species, Ramusella (Rectoppia) eduardoi sp. nov.En el presente trabajo se estudia la distribución de las especies del género Ramusella Hammer, 1962 en el sur de España. Se describe la nueva especie Ramusella (Rectoppia) eduardoi sp. nov

Nuevas especies de Carabodidae (Acariformes, Oribatida) iberomagrebíes

In this paper five species belonging to the family Carabodidae are studied; four of them are new species: Carabodes pirenaicus sp. nov. and Carabodes guadarramicus sp. nov. from Spain, and Odontocepheus bandae sp. nov. and Odontocepheus zaballosi sp. nov. from Morocco; Carabodes quadrangulus Bernini, 1979, a west-mediterranean species, is redescribed and commented on.El presente trabajo está dedicado al estudio de varias especies de Carabódidos iberomagrebíes; cuatro de ellas son nuevas para la ciencia: Carabodes pirenaicus sp. nov., Carabodes guadarramicus sp. nov., Odontocepheus bandae sp. nov. y Odontocepheus zaballosi sp. nov.; las dos primeras proceden de España, mientras que las otras dos son marroquíes; también se redescribe y aportan nuevos datos sobre la especie mediterráneo-occidental Carabodes quadrangulus Bernini, 1979

Los Multioppiinae del sur de España I. Géneros Multioppia y Pulchroppiella con descripción de una nueva especie (Acari, Oribatida, Oppiidae)

In this paper species belonging to the genera Multioppia Hammer, 1961 and Pulchroppiella Balogh, 1983 from the South of Spain are studied. A new species, Multioppia gilmartinoi sp. nov. is described. Multioppia excisa Moritz, 1971 is considered as a junior synonym of Multioppia neglecta Pérez-Íñigo, 1969 syn. nov.En el presente trabajo se estudia la distribución de las especies de los géneros Multioppia Hammer, 1961 y Pulchroppiella Balogh, 1983 en el sur de España. Se describe la nueva especie Multioppia gilmartinoi sp. nov. y se considera Multioppia excisa Moritz, 1971 como sinónimo de Multioppia neglecta Pérez-Íñigo, 1969 sin. nov

Quetotaxia de las patas de Neoppia discreta Ruiz, Mínguez et Subías, 1988 (Acari, Oribatida, Oppiidae, Antilloppiinae)

In this paper the chaetotaxy of the legs of a member of the subfamily Antilloppiinae (Neoppia discreta Ruiz, Mínguez et Subías, 1988) is studied for the first time.En el presente trabajo se realiza por primera vez el estudio de la quetotaxia de las patas de un miembro de la subfamilia Antilloppiinae, Neoppia discreta Ruiz, Mínguez et Subías, 1988

New mantises (Insecta: Mantodea) in Cretaceous ambers from Lebanon, Spain, and Myanmar

Diverse new material of mantises found in the Cretaceous amber-bearing deposits from Lebanon (Barremian), Spain (Albian), and Myanmar (AlbianeCenomanian) are described and figured. The Lebanese and Spanish forms are nymphs; while the one from Myanmar is an adult specimen. The Lebanese nymph corresponds to a new specimen of Burmantis lebanensis Grimaldi, 2003 while the adult Burmese (Myanmar) specimen belongs to the new species Burmantis zherikhini. The Spanish specimen represents a new genus and species and is established as Aragonimantis aenigma, but is considered family incertae sedis. The Spanish specimen is the first record of Mesozoic mantises from western-European amber deposits. A revised phylogenetic hypothesis for Cretaceous mantises is propose

The gut microbiota of farmed and wild brook trout (Salvelinus fontinalis): evaluation of feed-related differences using 16S rRNA gene metabarcoding

The gut microbiota has become a topic of increasing importance in various fields, including aquaculture. Several fish species have been the subject of investigations concerning the intestinal microbiota, comparing different variables including the intestine portions, the environment and diet. In this study, the microbiota of farmed and wild brook trout (Salvelinus fontinalis) was analysed, considering separately wall and content of the medial portion of the intestine. A total of 66 fish (age class 2+) were sampled, of which 46 wild and 20 farmed brook trout, along two different years. Microbiota data were obtained using a 16S metabarcoding approach by analysing the V3-V4 hypervariable regions of the 16S rRNA. Data showed that the core microbiota of these species is represented by Proteobacteria (Alpha- and Gammaproteobacteria), Actinobacteria, Firmicutes (Bacilli and Clostridia) and, only for farmed animals, Fusobacteria. The latter taxon is likely related to the fishmeal-based diet administered to farmed brook trout. Indeed, alpha and beta diversity analysis showed differences between wild and farmed fish. Finally, statistically significant differences in the microbiota composition were observed between intestinal wall and content in wild fish, while no differences were detected in reared animals