Morfología de la pupa de los Carabus (s. l.) (Coleoptera, Carabidae) del suroeste de la península ibérica

The pupae of Carabus (s. l.) of the south–west Iberian peninsula are described. The study was carried out with pupae of Macrothorax rugosus (Fabricius, 1792), Hadrocarabus dufouri (Dejean, 1831), H. lusitanicus (Fabricius, 1801) and Rhabdotocarabus melancholicus (Fabricius, 1798) reared in the laboratory from adults caught in the field. By determining and testing various morphological structures, all three genera were identified. These results indicate that the presence or absence of setae on the pronotum, the distribution of hairs on the abdominal tergi and the development of tergal expansions from urotergi are the most significant features for identification.Se describe la pupa de los Carabus (s. l.) del suroeste de la península ibérica en base a la morfología preimaginal de las especies Macrothorax rugosus (Fabricius, 1792), Hadrocarabus dufouri (Dejean, 1831), H. lusitanicus (Fabricius, 1801) y Rhabdotocarabus melancholicus (Fabricius, 1798). La descripción se ha realizado sobre ejemplares obtenidos en cultivos realizados con parentales procedentes de su medio natural. Determinando y contrastando las estructuras propias de cada una de las especies mencionadas es factible identificar los tres géneros representados en el suroeste de la península ibérica, estableciendo como caracteres diagnósticos decisivos la presencia o ausencia de sedas en el pronoto, la distribución de la pubescencia en los terguitos abdominales y el grado de desarrollo de las expansiones urotergales

Actividad glicosidásica de bacterias ácido lácticas (BAL) y bifidobacterias aisladas de leche materna

Trabajo presentado en la VI Jornadas Complutenses, V Congreso Nacional de Investigación para Alumnos de Pregrado en Ciencias de aa Salud y X Congreso de Ciencias Veterinarias y Biomédicas.Las bacterias ácido lácticas (BAL) y las bifidobacterias tienen una gran importancia por su carácter probiótico. El interés por estos microorganismos ha fomentado su aislamiento de diversas fuentes y el estudio de sus propiedades, siendo la actividad glicosídica una de las menos estudiadas.Peer Reviewe

Anesthesia for Plastic Surgery Procedures

Plastic surgery is currently more popular and available with increasing frequency throughout the world. Its advances are related to progress in anesthesiology. Nowadays, it is possible to operate patients with pathologies that previously did not allow this type of surgery. The developments in perioperative monitoring, pharmacology, prevention of complications, and the wide communication between patients and physicians, as well as the development of surgical units that facilitate a prompt programming and reduce the total costs, have resulted in a logarithmic growth of plastic and reconstructive surgery procedures. Local, regional, or general anesthesia, anesthetic monitoring, or conscious sedation is used routinely, allowing to manage patients as ambulatory or short stay. Deep vein thrombosis and pulmonary embolism remain the most frequent complications, followed by postoperative pain, nausea, and vomiting

Sustained exocytosis after action potential-like stimulation at low frequencies in mouse chromaffin cells depends on a dynamin-dependent fast endocytotic process

Under basal conditions the action potential firing rate of adrenal chromaffin cells is lower than 0.5 Hz. The maintenance of the secretory response at such frequencies requires a continuous replenishment of releasable vesicles. However, the mechanism that allows such vesicle replenishment remains unclear. Here, using membrane capacitance measurements on mouse chromaffin cells, we studied the mechanism of replenishment of a group of vesicles released by a single action potential-like stimulus (APls). The exocytosis triggered by APls (ETAP) represents a fraction (40%) of the immediately releasable pool, a group of vesicles highly coupled to voltage dependent calcium channels. ETAP was replenished with a time constant of 0.73 � 0.11 s, fast enough to maintain synchronous exocytosis at 0.2-0.5 Hz stimulation. Regarding the mechanism involved in rapid ETAP replenishment, we found that it depends on the ready releasable pool; indeed depletion of this vesicle pool significantly delays ETAP replenishment. On the other hand, ETAP replenishment also correlates with a dynamin-dependent fast endocytosis process (τ = 0.53 � 0.01 s). In this regard, disruption of dynamin function markedly inhibits the fast endocytosis and delays ETAP replenishment, but also significantly decreases the synchronous exocytosis during repetitive APls stimulation at low frequencies (0.2 and 0.5 Hz). Considering these findings, we propose a model in where both the transfer of vesicles from ready releasable pool and fast endocytosis allow rapid ETAP replenishment during low stimulation frequencies.Fil: Moya Diaz, José Abelino. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Alvarez, Yanina Daniela. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Montenegro, Mauricio Norman. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; ArgentinaFil: Bayonés, Lucas. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; ArgentinaFil: Belingheri, Ana Verónica. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: González-Jamett, Arlek M.. Universidad de Valparaiso; ChileFil: Cárdenas, Ana M.. Universidad de Valparaiso; ChileFil: Marengo, Fernando Diego. Universidad de Buenos Aires. Facultad de Ciencias Exactas. Departamento de Ecología, Genética y Evolución. Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentin

Redescripción de Uromenus (Steropleurus) recticarinatus Llorente, 1980. (Orthoptera, Tettigoniidae, Ephippigerinae)

Se redescribe Uromenus (Steropleurus) recticarinatus Llorente, 1980 a partir de nuevo material capturado en el Parque Nacional de Doñana, poniéndose de manifiesto que la forma del pronoto es la estructura más característica de la especie. Se describen los caracteres del adulto para ambos sexos, se discute su relación con otras especies afines y se establecen las diferencias con S. flavovittatus (Bolívar, 1878), S. andalusius (Rambur, 1838), S. pseudolus (Bolívar, 1878) y S. perezii (Bolívar, 1877).Uromenus (Steropleurus) recticarinatus Llorente, 1980 is redescribed from new material sampled in Doñana National Park (Spain). The study of the specimens shows that the pronotal shape is the most representative feature. The adults of both sexes are described and the differences with respect to the related species S. flavovittatus (Bolívar, 1878), S. andalusius (Rambur, 1838), S. pseudolus (Bolívar, 1878) and S. perezii (Bolívar, 1877) are discussed

Reproductive biology of Chlaenius velutinus (Duftschmid, 1812)(Coleoptera, Carabidae) in the south of the Iberian Peninsula

Se estudia la biología de reproducción de Chlaenius velutinus Duftschmid, 1812, especie bien representada en las comunidades de carábidos ripícolas del sur de la Península, en las que suele ser un elemento dominante. Se parte de muestreos sistemáticos efectuados en el arroyo Arenosillo (tributario de la cuenca del Guadalquivir por su margen derecho), de estudios anatómicos relativos a la edad y sexo de los ejemplares y al estado gonadal de las hembras y de cultivos de laboratorio. Los resultados indican que la actividad de los imagos se centra en primavera, con un máximo en abril y mayo, momento en que también es máxima la oviposición, que la fecundidad es elevada (10,05 huevos/hembra), que el período medio de desarrollo en el laboratorio es algo más de un mes y que la fase más crítica, en condiciones artificiales, es la eclosión del huevo. De todo lo anterior se deduce que el ciclo de vida de C. velutinus se ajusta al de los reproductores de primavera (Larsson, 1939)

Effects of Environmental Traits and Landscape Management on the Biodiversity of Saproxylic Beetles in Mediterranean Oak Forests

This study assesses the effects of environmental traits and landscape management on the biodiversity of saproxylic beetles from “dehesas” located in Sierra Morena Mountains (Córdoba, Southern Iberian Peninsula). The dehesa is an open savanna-like landscape with mature/old trees scattered on a pasture cover where both living and dead wood are of great importance for the maintenance of macroinvertebrate fauna. The study was carried out in five plots, with different environmental features and management. A total of 137 branches belonging to the four main tree species present in the area were collected, classified, and kept under four different thermal conditions. From January to June 2019, the adult emergences were followed. A total of 466 saproxylic specimens of 31 species were obtained, 5 of them included in red lists of protected fauna. Two Bostrichidae species (Lichenophanes numida Lesne and Scobicia pustulata Fab.) and two Cerambycidae (Chlorophorus ruficornis Oliv. and Trichoferus fasciculatus Faldermann) are included in the “European Red List of Saproxylic Beetles”; and the Clerid Tillus ibericus Bahillo de la Puebla, López–Colón and García–Paris, is included in the “Red Book of Invertebrate of Andalucía”. Differences were observed regarding the diversity and abundance among the plots and among the tree species from which the beetles emerged. Simple regression analyses revealed negative relationships between tree density/Buprestidae, livestock/Bostrichidae, and land use/Cerambycidae. Multivariant logistic regression analysis did not find significant relationships among environmental traits and saproxylic diversity. Results confirmed that dry wood was a main resource for the maintenance dehesas’ biodiversity because it constitutes an ecological niche exploited by a significant set of saproxylic beetles belonging to the Bostrichidae, Buprestidae, and Cerambycidae families, in addition to other guilds of species, mainly Carabidae and Cleridae, which feed on the above-mentioned groups. Our results also support that increasing environmental temperature accelerates the development of Buprestidae, but this effect was not evident for the Bostrichidae species

Assessment and Distribution of Damages Caused by the Trunk-Boring Insects Coraebus undatus (Fabricius) (Coleoptera: Buprestidae) and Reticulitermes grassei Clément (Blattodea: Rhinotermitidae) in Mediterranean Restored Cork-Oak Forests

This work assesses damage caused by Coraebus undatus (Fabricius) (Coleoptera: Buprestidae) and Reticulitermes grassei Clément (Blattodea: Rhinotermitidae) in managed cork oak forests from the southern Iberian Peninsula. Lesions were diagnosed and quantified in relation to the following features: height and orientation in the trunk, diameter at breast height, solar exposure, understory presence and orography. The distribution patterns of lesions in the study area across 12 plots and in the trunk of the trees were also analyzed. The study was performed in “Sa de Hornachuelos” Natural Park (Córdoba, Spain) and the research area encompassed 12 environmentally-restored sampling plots. Data were recorded from 2007 to 2014, with yearly sampling from late June to mid-September, corresponding to the cork extraction period, since lesions caused by these insects are well distinguishable promptly after bark removal. The results reveal that C. undatus has low population levels and a non-uniform distribution pattern in the study area as well as in the trunk of the tree. It shows preference for medium height but not by any trunk orientation. R. grassei also shows low infestation levels and a preference to affect the trunk’s base. Comparatively, C. undatus showed higher infestation levels than R. grassei. The location of damage was also different, since galleries made by C. undatus predominated at intermediate trunk heights while those of R. grassei were more frequent at lower heights. Our results further showed a low co-occurrence of both species in the same tree trunks, which could be explained in terms of overlapping in the distribution areas of both species. These results provide background information that will enable natural resources managers to detect changes and trends of these species and inform future management decisions