117,766 research outputs found
Three new species of Bathysciola Jeannel, 1910 (Leiodidae, Cholevinae, Leptodirini) from caves in Central Italy, comparing morphological taxonomy with molecular phylogeny
No full textThe genus Bathysciola is widely distributed in the northern Mediterranean region, although its range extends east to the Caucasus and Iran. More than 130 species belonging to this genus are actually known in the whole geographic distribution area and 45 species are distributed in continental and insular Italy. The species belonging to the Bathysciola sisernica
Cerruti and Patrizi, 1952 species group occur in the Central-Southern Italian Apennines and Pre-Apennines. This group consists of seven species, four of which (B. sisernica, B. delayi Latella and Rampini, 1994, B. rampinii
Latella, 2002, B. sbordoni Rampini and Latella, 1993) were already known to science and three are described herein, Bathysciola fabiolae
sp. nov., Bathysciola octaviani
sp. nov.
, and Bathysciola valeriae
sp. nov., markedly increasing the knowledge on the distribution of this genus in Central Italy. A morphological analysis was carried out based on diagnostic characters usually used to distinguish different taxa, and including both genitalia and external traits. Based on morphological characters, we reconstructed the phylogeny of this group of species, comparing them with the species belonging to other phyletic lineages, such as B. derosasi
Jeannel, 1914, B. georgi Cerruti, Patrizi, 1952, B. vignai Sbordoni and Rampini, 1978, and B. sarteanensis sarteanensis (Bargagli, 1870). Results suggested that morphological traits show a clear taxonomic signal but a poor phylogenetic signal. To better understand the relationships within this group of species, we performed a molecular analysis by sequencing three mitochondrial genes, 12S rRNA, 16S rRNA, partially sequenced and the entire gene of COI. Molecular markers were used to infer phylogenetic relationships among the Bathysciola sisernica species group and to reconstruct the historical processes that shaped their current geographic distribution. Results showed that these species became isolated in very ancient times, showing very high genetic differentiation.</jats:p
Dataset for I. Latella, A. Campa, L. Casetti, P. Di Cintio, J. M. Rubi, and S. Ruffo, Monte Carlo simulations in the unconstrained ensemble, Phys. Rev. E 103, L061303 (2021)
No full textThis dataset contains data associated to plots published in the paper I. Latella, A. Campa, L. Casetti, P. Di Cintio, J. M. Rubi, and S. Ruffo, Monte Carlo simulations in the unconstrained ensemble, Phys. Rev. E 103, L061303 (2021), https://doi.org/10.1103/PhysRevE.103.L06130
Anemadus lucarellii Giachino & Latella & Vailati 2013, sp. nov.
No full textAnemadus lucarellii sp. nov. (figs. 1–4) Type locality. Turkey, Konya Vilayet, Seydişehir, Ferzene Mağarasi. Type series. HT ♂, Turkey, Konya Vilayet, Seydişehir, Ferzene Mağarasi, 37° 23' 20.82" N – 31° 49' 22.24" E, 1470 m asl, 27.IX.1998, L. Latella leg. (CLa). PTT: 2 ♀ ♀, Turkey, Konya Vilayet, Seydişehir, Ferzene Mağarasi, 37° 23' 20.82" N – 31° 49' 22.24" E, 1470 m asl, 27.IX.1998, L. Latella leg. (CGi, CVa). Diagnosis. An Anemadus species wich, based on the characters of the aedeagus (apex of the median lobe regularly rounded, not abruptly expanded before the apex and internal sac with a median patch of spines) belongs to the pellitus species group (sensu Giachino & Vailati, 1993), which strongly resembles A. cribratostriatus Ganglbauer, 1900 in body shape, elytral microsculpture of the type “C” (with transverse regular rows and longitudinal striae deep and clearly visible) (sensu Giachino & Vailati, 1993) and structure of the aedeagus. The new species differs from A. cribratostriatus in the longer elytra, with apex more strongly pointed and lateral margins less rounded; the pronotum with margins more rounded posteriorly (instead than sub-parallel sided as in A. cribratostriatus); the longer antennae; the stronger tibiae of all legs; the shape of the median lobe of the aedagus, which is apically more elongated; the shorter and thinner parameres, with the group of inner apical setae more apically inserted. Description. Total length: ♂, 3.31 mm, ♀♀ 3.24–3.53 mm. Body brown, with testaceous legs, antennae and palpi, antennomeres VII and IX brownish. Integument uniformly covered with yellow pubescence, short and semierect. Head retractile, eyes well-developed, pubescence short and recumbent on the frons, erect on the clypeus. Antennae short, thin, reaching the basal fifth of elytrae in males and females, VIII antennomere not transverse. Antennomeres length (mm): HT ♂♂ 0.150 - 0.136 - 0.157 - 0.102 - 0.109 - 0.095 - 0.123 - 0.068 - 0.109 - 0.095 - 0.191 PT ♀ 0.164 - 0.157 - 0.164 - 0.116 - 0.123 - 0.116 - 0.130 - 0.061 - 0.102 -0.089 - 0.205 Pronotum transverse (ratio maximum width/maximum length: 1.50 ♂, 1.58–1.64 ♀♀) widest at mid-length, without basal impression, with almost flat disk near the basal angles; lateral margin regularly curving anteriorly and near the basal corners; basal angles obtuse and slightly rounded. Base of pronotum slightly narrower than elytra, laterally subsinuate. Pubescence on disk yellow, short and recumbent. Pronotum disk roughly granulose with emphasized microsculpture. Elytra elliptical, very elongate (ratio maximum width/maximum length: 0.58 ♂, 0.58 ♀♀), each elytron rounded and clearly narrowed apically in both sexes. Elytra strongly separated apically, with disk convex, flattened along the suture in the central area. Sculpture of type “C” (sensu Giachino & Vailati, 1993). Sutural stria present, well-developed, sub-parallel with elytral suture for the basal 2/3, strongly convergent in the distal 1/3. Metathoracic wings fully developed. Legs relatively long, all tibiae strong, protibiae slightly dilated distally, with inner latero-ventral expansion in male. Mesotibiae curved, metatibiae slightly curved. Three basal segments of anterior tarsi dilated in male, as large as the apex of the tibia. Aedeagus (figs. 2–3) quite large, length 0.79 mm (0.86 if measured with parameres included). Median lobe, in dorsal view, elongate, with lateral edges convergent and subapically slightly concave. Apex acute but not sharp. Median lobe, in lateral view, straight, with slight double-sinuation in the distal half; with sinuation pointing first ventrally and after dorsally; apex slightly bent downwards. Parameres (figs. 2–4) relatively weak, longer than the median lobe of about 1/7 of their length, slightly curved inwards and with small asymmetrical lateral expansions, larger in the proximal part and gradually tapering distally. Apex curved outwards and upwards, sickle-shaped, with pointed tip; chaetotaxy represented by a group of 4 long ventral setae and one more ventro-apically inserted. Internal sac of the aedeagus with an elongated patch of spines pointing apically, flanked on each side by a group of setae of different length, the most proximal setae forming towards the base two pairs of phanerae flattened in margins and crenellated, the first of which is not very evident. Female genitalia as typical for the genus (see Giachino & Vailati, 1993 for the description). Etymology. The new species is named after Marco Lucarelli, entomologist at the University of Rome “Tor Vergata”, who organized and took part to the biospeleological expedition in Anatolia with the second author of this paper (Leonardo Latella). Distribution and ecology. The species is so far known only from one locality, the Ferzene Cave near Seydişehir, in Konya Vilayet, South-Western Anatolia. The cave is horizontal, around 400 m long, and opens at 1470 m a.s.l. It was formed within the contact zone between the Jura Cretaceous aged limestones and Triassic aged argillaceous thin-layered dolomite limestones (Tanindi et al., 2003). The internal temperature at the collecting time (h 12.00) measured 8.4°C. Specimens were found in the entrance gallery. The area outside the cave is a typical oak shrub land. The Ferzene cave, or “Ferzene Mağarasi”, or “Grotte de Fersine” is a cave well known to biospeleology scholars and of particular importance in the history of Turkish biospeleology (Latella et al., 1998). Known for more than a century, and subject of a monographic contribution by Jeannel (1934a, 1934b), it was visited by the most famous biospeleologists of the last century including, in 1933, Leo Weirather (Pretner, 2011). This cave is known to house an interesting subterranean fauna, including the following beetles: the carabids Duvalius huetheri Jeannel, 1934 and Laemostenus (Antisphodrus) agnolettii Vigna Taglianti, 1999 (Casale & Vigna Taglianti, 1999), the colevid Huetheriella maximiliani Jeannel, 1934, and the histerid Spelaeacritus anophthalmus Jeannel, 1934. The discovery of a new species of colevid, even if not a troglobite, in a cave considered faunistically well known is therefore of particular interest and underlines the importance of continuing to carry out research in areas considered to be well known.Published as part of Giachino, Pier Mauro, Latella, Leonardo & Vailati, Dante, 2013, Two new species of the genus Anemadus Reitter, 1885, from the Near East (Coleoptera: Cholevidae), pp. 378-386 in Zootaxa 3718 (4) on pages 379-381, DOI: 10.11646/zootaxa.3718.4.7, http://zenodo.org/record/526683
FIG. 3 in The Cholevinae Kirby, 1837 (Coleoptera, Leiodidae) of the Maritime Alps
No full textFIG. 3.— Parabathyscia (s.str.) spagnoloi devillei Jeannel, 1911. Photograph: L. Latella. Scale bar: 1 mm.Published as part of Latella, Leonardo, 2015, The Cholevinae Kirby, 1837 (Coleoptera, Leiodidae) of the Maritime Alps, pp. 595-604 in Zoosystema 37 (4) on page 601, DOI: 10.5252/z2015n4a5, http://zenodo.org/record/457787
The fungal communities of the "Fiume Coperto" sulfurous cave waters.
No full textWithin the biospeleological and ecological researches carried out in the Fiume Coperto Cave, investigation on fungal community of sulfurous water has been carried out in three different period (21/12/2000, 25/5/2001, 28/10/2001). The cave is located about 100 km south of Rome on the slope of Lepini Mountains (Italy) and it is open at 21 m a.s.l. with an horizontal development of 170 m. In the cave the sulfurous river water (H2S 7 mg l-1) forms a series of small lakes, which differ in width and deepness. The surface of the water is largely covered by a viscose matrix (“mat”), composed by sulfide-oxiding and methano bacteria, similar to those observed in the Movile cave (Romania). Samples of water were collected at different level of three lakes. This study allow us to identify 45 taxa belonging to 20 genera. The data were analyzed with classification (cluster analysis) and ordination (Principal Coordinates Analysis) methods using SIN-TAX 5.0. The results show peculiar associations related to the different lake samples and periods investigated. The distribution of the species inside the cave and ecology of the fungal community are discussed
La fauna del suolo : tassonomia, ecologia e metodi di studio dei principali gruppi di invertebrati terrestri italiani
No full text
L'abusivismo commerciale da parte dei cittadini immigrati a Rimini
No full textSi tratta di una ricerca con rilevazione diretta (condotta dalla scrivente con Latella), che da un lato si confronta con i precedenti di ricerca (Catanzaro-Nelken) del 1996-1997 e, dall'altro, con i mutamenti della situazione in atto. Tra i principale risultati di carattere anche teorico il passaggio dall'attenzione privilegiata alle "economie etniche" all'attenzione posta piuttosto sui "processi migratori", che coinvolgono in percorsi simili i provenienti da diversi paesi e aree geografiche. In questa chiave, la scrivente ha approfondito la realtà e le politiche pubbliche relative agli street vendors in diversi paesi di partenza. I documenti di ricerca sono resi disponibili dal Comune di Rimini all'indirizzo:
http://www.comune.rimini.it/eventi/pagina6045.html#inizio_contenut
Exploring gut microbiota composition of the two caves coleoptera species Neobathyscia pasai and Neobathyscia mancinii
No full textNeobathyscia mancinii (Jeannel, 1924) and Neobathyscia pasai (Ruffo, 1950) are two cave-dwelling Coleoptera (Leiodidae, Cholevinae,), which inhabit two caves located in the Prealps of the Veneto Region (Damati Cave and Tana delle Sponde Cave, respectively). In detail, N. mancinii is confined in the internal part of Damati Cave characterized by a constant temperature during the year, while N. pasai mostly colonizes the cave entrance where the temperature is more variable and the energy sources might be more abundant (Latella et al. 2009; Bernabò et al., 2011).
Little is known about the behaviour and the physiological adaptation of these troglobite insects to cave environments, which are characterized by specific conditions as perpetual darkness, high humidity and sporadic food sources.
It has been observed that the complex microbial community associated to insects plays substantial biological roles for the host organisms and contributes to host fitness and adaptation (Colman et al. 2012; Shi et al. 2013).
The present project aimed at characterizing the gut microbiota of N. pasai and N. mancinii as a unique opportunity to gain insights about the behaviour of these insects and their eating habits in the cave environment.
A total of 90 insects (60 N. pasai and 30 N. mancinii) were collected from December 2013 to April 2014 both in Damati and Tana delle Sponde caves and they were pooled in samples of ten insects each. Total DNA was extracted from each pool and subjected to PCR amplification using universal primer designed on ribosomal gene sequences. Denaturing gradient gel electrophoresis (DGGE) was applied in order to investigate bacterial and fungal communities present in the gut of these insects. Selected DGGE bands were subjected to sequencing to identify the most relevant members of these complex communities at genus and species level. Results provide novel information on adaptation to cave environment of N. pasai and N. mancinii. Moreover, insects could be seen as natural reservoir of bacteria, therefore contributing to the microbial community involved in natural processes in the underground
Studi di biologia di popolazione in Troglophilus delle grotte italiane (Orthoptera, Rhaphidophoridae)
No full textpubblicato da : Memorie dell' Istituto Italiano di Speleologia. Serie II, vol XX
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