38,766 research outputs found
Paolo De Matthaeis,órgano (Colombia)
No full textConcierto interpretado por el organista Paolo de Matthaeis. Este artista es organista titular de la Basílica de Santa Agnese en Roma, de la Basílica de San Pietro in Víncoli y organista y maestro preparador en la Iglesia Santa María alla Traspontina. Inició sus estudios musicales en el piano con G Bruno, en el órgano con P. Theo Flury (O. S. B.), y en órgano y composición con Guiuseppe Agostini• posteriormente los continuó con Wijnand Van de PoI en el curso superior experimental de órgano del Conservatorio Morlaccru en Perugia
I Talitridi (Crustacea, Amphipoda) nel Mediterraneo e aree limitrofe: integrazione di dati filogenetici, biogeografici, ed ecologici.
No full textLife history and temporal distribution of Orchestia sp. cf. cavimana (Amphipoda, Talitridae) on a lake shore in central Italy
No full textThe life history of the amphipod Orchestia sp. cf. cavimana (Heller, 1865) was studied throughout the course of a year with monthly samplings and the use of pitfall traps along the shores of Lake Albano in central Italy. The data thus obtained showed two peaks in abundance (the first in June and the second in October) and a minimum capture frequency in February. Egg-bearing females were recorded in spring and late summer, whilst recruitment occurred from spring to autumn, with maximum in June and October. The data collected also indicated the presence of a positive correlation between the abundance of talitrids and both temperature and sediment moisture. Morphological analysis enabled the identification of four different cohorts (with a lifespan of the species of approximately 12-15 months) all four of which remained distinguishable throughout the course of the year. It, moreover, enabled sex determination in individuals of 5 or more millimetres. The subsequent distribution indicated that, when significant, the sex ratio was female biased and that maximum size was greater in males. In particular, maximum sizes were recorded in spring for both males and females and were of 17.5 and 13.0 mm, respectively. Furthermore, the total body length recorded for egg-bearing females was positively correlated with the number of eggs in their brood pouch. (C) 2009 Elsevier GmbH. All rights reserved
Ecoturismo Recanto dona Elvira, Curitibanos - SC
No full textProjeto acadêmico (graduação) - Universidade Federal de Santa Catarina. Campus Curitibanos. Ciências Rurais.O Ecoturismo vem crescendo desde a década de 70, tendo seu impulso dado final da década de 80. Desde então se pensa muito ecológicamente e em qualidade de vida, aumentando a demanda por esses serviços. Em Santa Catarina o campo de ecoturismo, turismo rural e até mesmo agroturismo têm vasto campo e belas extremamente exuberantes. No município de Curitibanos /SC não têm um campo ecológico para visitação, porém existe uma propriedade privada denominada Recanto Dona Elvira que poderia ser um forte atrativo no município e na região. A proposta deste trabalho é casar a ideia inicial dessa propriedade com ecoturismo, tornando-o mais ecológico possível, bem como o adequando às normas/legislações ambientais. Espera-se que seja possível a implantação deste projeto, pois com certeza será bastante rentável, atrativo e principalmente muito importante para conservação dos recursos naturais que nosso país possu
Life history of the talitrid amphipod Macarorchestia remyi (Schellenberg, 1950) on a Tyrrhenian sandy beach, Italy
No full textIn this study, we analysed the life cycle and some aspects of the reproductive biology of the talitrid amphipod Macarorchestia remyi (Schellenberg, 1950) on a sandy beach in central Italy (Tyrrhenian Sea). The species is strongly associated with rotting wood carried by the sea. The animals were sampled once a month by hand over 1 year (May 2006-April 2007) and a total of 3,484 individuals were collected. Results showed the occurrence of intersexes in addition to males and females (n = 268) and a sex ratio always in favour of females. Breeding peaked twice during the year and the number of eggs in the ventral brood chamber ranged from 3 to 19. Linear regression analysis showed a positive correlation between total length of ovigerous females and the number of eggs they carried. The mean length of both mature males and mature females was 6 mm, while the maximum length was 13 mm. The presence of two cohorts during the year was also identified. Our results suggest that, despite the ephemeral habitats where the species lives, the population is stable over time and its life cycle does not differ in relation to other talitrid species that live on beaches
Supralittoral amphipod abundances across habitats on Mediterranean temperate beaches
No full textCommunity complexity and abiotic conditions are key components of environmental heterogeneity that affect the abundance and distribution of species. In this study we evaluated how environmental conditions affect abundances of supralittoral amphipods (Talitridae) in four habitats (sandy beach, rivermouth, wrack and lakeshore), along the Italian peninsula in the Mediterranean Sea. All samplings covered a 12 month period, and used the same sampling methodology thereby enabling comparison of abundances and species composition and richness. Four species (Talitrus saltator (Montagu, 1808), Orchestia gammarellus (Pallas, 1766), O. montagui Audouin 1826, O. cf. cavimana Heller 1865) were collected in the different habitats, but most species were found or were abundant in only one of the four habitats. Abundances of talitrids (numbers per sampling hour) differed significantly among the habitats with highest abundances found in the wrack and on the riverbank in proximity to an estuary, and lowest abundances observed on four sandy beach sites. Environmental conditions (temperature, moisture, substrate penetrability) differed among the habitats and were associated with some of the among-site variability in abundances. Our findings demonstrate that talitrids thrive better in some supralittoral habitats than others, and that some habitats could be considered to be "hotspots" of talitrid ecology and biodiversity.Community complexity and abiotic conditions are key components of environmental heterogeneity that affect the abundance and distribution of species. In this study we evaluated how environmental conditions affect abundances of supralittoral amphipods (Talitridae) in four habitats (sandy beach, rivermouth, wrack and lakeshore), along the Italian peninsula in the Mediterranean Sea. All samplings covered a 12 month period, and used the same sampling methodology thereby enabling comparison of abundances and species composition and richness. Four species (Talitrus saltator (Montagu, 1808), Orchestia gammarellus (Pallas, 1766), O. montagui Audouin 1826, O. cf. cavimana Heller 1865) were collected in the different habitats, but most species were found or were abundant in only one of the four habitats. Abundances of talitrids (numbers per sampling hour) differed significantly among the habitats with highest abundances found in the wrack and on the riverbank in proximity to an estuary, and lowe
ALLOZYMES AND mtDNA REVEAL TWO DIVERGENT LINEAGES IN ORCHESTIA CAVIMANA (AMPHIPODA: TALITRIDAE)
No full textWe report on allozyme and mitochondrial DNA variation in 13 populations of the supralittoral amphipod Orchestia cavimana. The species colonizes fresh and brackish shores of Northern Africa, Near East and throughout Europe. Populations were sampled across a large part of the species range (Cyprus, Turkey, northern and southern Italy, United Kingdom and Germany), including the type locality (Cyprus). Both sets of molecular markers agree in identifying two divergent lineages. A first lineage includes populations from Cyprus and Turkey. A second genetically homogeneous lineage groups Italian, English and German populations. Genetic divergence between the two lineages is high (D-Nei = 0.720 +/- 0.06 for allozymes and K2P = 0.191 +/- 0.001 for mitochondrial DNA) and comparable to that among morphologically distinct congeneric species reported for the same set of molecular markers
SHELL MORPHOLOGY IN CERASTODERMA SPP. (BIVALVIA: cARDIIDAE) AND ITS SIGNIFICANCE FOR ADAPTATION TO TIDAL AND NON-TIDAL COASTAL HABITATS
No full textMaría Elvira Maure de Segovia
No full textFil: Maure de Segovia, María Elvira.
Universidad Nacional de Cuy
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