Search results for "Carp"

Evaluating the effects of forest tree species on rill detachment capacity in a semi-arid environment

2021

Abstract The beneficial effects of plant roots in decreasing soil detachment in forest ecosystems exposed to rill erosion are well known. However, these effects vary largely between different plant species. There has been lots of research into the relationship between root-soil systems and rill erodibility with a particular focus on grass species. Conversely, fewer studies are available for tree species, especially in forests of semi-arid or arid environments. Greater knowledge is therefore needed to identify the most effective tree species against rill erosion in these ecosystems, where water availability is the limiting factor for vegetation growth and afforestation is often the only solu…

El escultor Ignacio Vergara y el gremio de carpinteros de Valencia

2000

Eudontomyzon danfordi (Regan, 1911) Species Populations Ecological Status in Maramureş Mountains Nature Park (Romania)

2015

Abstract The Eudontomyzon danfordi characteristic habitats state of Maramureş Mountains Nature Park varies greatly, 19.05% are in excellent conservation status, 47.62% are in good/average status and 33.33% are in a partially degraded condition. The identified human impact categories which induced the decreasing of Eudontomyzon danfordi species habitat state in the studied area are: poaching, minor riverbeds morphodynamic changings, liquid and solid natural flow disruption, destruction of riparian trees and bush vegetation, habitat fragmentation-fish populations isolation, and organic/mining pollution activities.

Francisco Vergara y la Academia de San Lucas de Roma

1994

MIEMBRO DE UNA DESTACADA FAMILIA DE ARTISTAS, FRANCISCO VERGARA BARTUAL (C. 1716-1761) RECIBIO SU PRIMERA FORMACION EN EL TALLER PATERNO. CUANDO HUBO COMPLETADO SU APRENDIZAJE A LOS 17 AÑOS, INGRESO DE PLENO DERECHO EN EL GREMIO DE CARPINTEROS DE VALENCIA. LOS DESEOS DE COMPLETAR SUS ENSEÑANZAS DEBIERON IMPULSARLE A MARCHAR PRIMERO A LA CORTE, ATRAIDO POR LAS OBRAS DEL PALACIO REAL, Y LUEGO A ITALIA. EN ROMA CONOCIO LA MAS MODERNA ESCULTURA DEL SETECIENTOS, MUY INFLUIDA AUN POR BERNINI, ALGARDI Y DUQUESNOY. APOYADO POR FILIPPO DELLA VALLE, EL MAS CARISMATICO ESCULTOR EN LA ROMA DE MITAD DEL SIGLO, INGRESO EN LA ACADEMIA DE SAN LUCAS Y EN LA DE DESNUDO DEL CAPITOLIO. EN LA CIUDAD ETERNA LLEV…

Using invertebrate remains and pigments in the sediment to infer changes in trophic structure after fish introduction in Lake Fogo: a crater lake in …

2010

2002

We carried out enclosure experiments to assess the potential deleterious effects of the alien species common carp (Cyprinus carpio L.), mosquitofish (Gambusia holbrookii Gir.), and pumpkinseed sunfish (Lepomis gibbosus L.) on water quality and food web in a severely degraded floodplain wetland, the Spanish National Park Las Tablas de Daimiel. With addition of either carp or pumpkinseed sunfish, chlorophyll a and turbidity levels, as well as concentrations of total phosphorus and total nitrogen increased. The magnitude of this increase depended on fish species and was severest in the carp treatment. Mosquitofish did not significantly affect water quality. In the treatments with fish, cyclopo…

Flavonoids, flavonolignans and a phenylpropanoid from Onopordon corymbosum

1990

Abstract The aerial parts of Onopordon corymbosum afforded seven flavonoids, 3-(3,4-dihydroxyphenyl)-1-propanol and two flavonolignans, hydnocarpin and the new 5′'-methoxy-hydnocarpin.

A genetic linkage map ofPhysocarpus, a member of the Spiraeoideae (Rosaceae), based on RAPD, AFLP, RGA, SSR and gene specific markers

2008

Physocarpus opulifolius is a deciduous shrub native to North America belonging to the Spiraeoideae subfamily of the Rosaceae. The cultivars 'Luteus' and 'Diabolo' are grown in gardens for their ornamental foliage, golden and purple respectively. We developed a linkage map of P. opulifolius with a view to detecting markers for the leaf colour genes, which are under major gene control. A total of 162 molecular markers (128 RAPDs, 27 AFLPs, three RGA, three STS markers and one SSR) and the leaf colour genes Pur and Aur were scored in the Physocarpus progeny and used to create a linkage map covering 586.1 cM over nine linkage groups. There was an average of 18.2 markers per linkage group and a …

Effects of tetraploidy on olive floral and fruit biology

2014

Floral biology and fruit development were studied in Leccino Compact (LC), a polyploid olive mutant of cultivar Leccino (L). This mutant, considered a mixoploid with both diploid and tetraploid cells, has thicker leaves and fruit size similar to the diploid cultivar. So far, no information is available on its floral biology. In this study, the ploidy level of the LC fruit epicarp, analyzed by flow cytometry, was determined to be tetraploid. Pollen size distribution confirmed that most flowers were tetraploid. Morphological and histological measurements of various floral structures and fruits were carried out on the two genotypes, and LC showed larger floral structures (i.e. rachis, flower a…

<em>Veedors, marquejadors</em>, maestros: el valor de la experiencia en la carpintería medieval. El ejemplo valenciano

2014

In the carpenter’s guild of Valencia in the Middle Ages, experience and skill were two notions captured in the more comprehensive idea of expertise. The appreciation of this added value made the expert an indispensable figure inside the guild. He was present in the different positions of control and inspection established by by-laws, which ensured the quality of goods manufactured, the proper level of teaching, and the accreditation of new masters. This figure also acted as an expert assessor, estimating the work of a colleague of even assessing the value of his interventions. In this article we examine the notion of expert in medieval carpentry and the infl uence of his practical applicati…