Search results for "Tree"
showing 10 items of 1841 documents
A new species of glirid rodent Vasseuromys from the Aragonian (Miocene) of the Ebro Basin (North−Eastern Spain)
2012
We describe a new species of Vasseuromys from the locality of Pico del Fraile 2 (PF2) in the Ebro Basin of northeastern Spain, which has yielded a fauna comprising several rodents and insectivores (Eumyarion cf. weinfurteri, Mega−cricetodon cf. primitivus, Democricetodon aff. hispanicus, Spermophilinus cf. besana, Microdyromys cf. legidensis, Galerix sp., and Lagomorpha indet.) indicative of Aragonian zones C or D. Vasseuromys cristinae sp. nov. differs from other Vasseuromys species in the constant presence of four extra ridges on the lower molars, one of them being connected to the posterolophid in the posterior valley, as well as three extra ridges on the upper molars, with none of them …
Phylogeny of Early Cretaceous spatangoids (Echinodermata: Echinoidea) and taxonomic implications
2004
A phylogenetic analysis of 36 species provides a test for the taxonomy and the history of Early Cretaceous spatangoids. Most taxonomic units from genera to suborders are consistent with the proposed phylogenetic framework. We retain Hemiasterina, Micrasterina, Hemiasteridae, Schizasteridae, Hemiaster, Heteraster, Mecaster, and Periaster as original monophyletic groups. However, all of these clades originate without the classical apomorphies normally ascribed to them. We suggest a revision of their diagnoses and of the generic attributions of basal species. Some ill-defined, ‘primitive’, and paraphyletic taxa are recognised: Toxaster, Epiaster, Palhemiaster, and Toxasteridae. Even if they do…
THE DEMOSPONGE GENUS LEPTOMITUS and A NEW SPECIES FROM THE MIDDLE CAMBRIAN OF SPAIN
2007
Forty-five specimens of Leptomitus conicus sp. nov. have been collected from the base of the Murero Formation (Caesaraugustan, Middle Cambrian) in the Murero area of Zaragoza, north-east Spain. The new species is a small obconical sponge, which has coarse oxeas forming parallel rods that run the whole length of the specimens in the man- ner typical of the genus. The biostratigraphy and facies of the levels with Leptomitus conicus have been analysed. Palaeoeco- logical information derived from associated trilobites, brachio- pods and ichnofossils shows that L. conicus lived in a soft substrate of a sublittoral environment of low to low ⁄ moderate energy. According to established Cambrian pal…
The hyo-laryngeal complex of Tarsius bancanus (Mammalia, Primates): a developmental and phylogenetic aspect
2008
The present approach reconstructed the hyo-laryngeal complex of fetal Tarsius bancanus by using the AMIRA 3.1.1 software. Our work fills a gap of ontogenetic research as this region has only been superficially described for an adult specimen representing the same genus. Furthermore, based on 51 characters we conducted several cladistic analyses considering the "Prosimii"/Haplorrhini-debate. Some anatomical information has been taken from the literature. Macclade© 4.06 was used in order to measure TL-, CI-, and RC-values of these two competing hypotheses, however, resulting in equal support. A PAUP© 4.02b parsimony analysis based on the Haplorrhini-hypothesis showed a significant bootstrap-v…
A taxonomic nightmare comes true: phylogeny and biogeography of glassworts (Salicornia L., Chenopodiaceae)
2007
In this study we analysed ETS sequence data of 164 accessions belonging to 31 taxa of Salicornia, a widespread, hygrohalophytic genus of succulent, annual herbs of Chenopodiaceae subfam. Salicornioideae, to investigate phylogenetic and biogeographical patterns and hypothesise about the processes that shaped them. Furthermore, our aim was to understand the reasons for the notorious taxonomic difficulties in Salicornia. Salicornia probably originated during the Miocene somewhere between the Mediterranean and Central Asia from within the perennial Sarcocornia and started to diversify during Late Pliocene/Early Pleistocene. The climatic deterioration and landscape-evolution caused by orogenetic…
A CASE STUDY OF THE APPLICATION OF HAND-HELD MOBILE LASER SCANNING IN THE PLANNING OF AN ITALIAN FOREST (ALPE DI CATENAIA, TUSCANY)
2021
Abstract. Precision forestry is becoming a key sector for forest planning because it allows complex analyses of forest data to be carried out simply and economically. It contributes to the integration between technicians and operators in the sector by guaranteeing the transparency of the forest management operations (Corona et al., 2017). In the context of the progressive development of technology, we investigated the feasibility of using the hand-held mobile laser scanner (HMLS) system in different types of forest sites and comparison of the characteristics of individual trees (tree height, diameters at breast height) with traditional surveys, applied with the aim to validate the performan…
Learning non-linear time-scales with kernel -filters
2009
A family of kernel methods, based on the @c-filter structure, is presented for non-linear system identification and time series prediction. The kernel trick allows us to develop the natural non-linear extension of the (linear) support vector machine (SVM) @c-filter [G. Camps-Valls, M. Martinez-Ramon, J.L. Rojo-Alvarez, E. Soria-Olivas, Robust @c-filter using support vector machines, Neurocomput. J. 62(12) (2004) 493-499.], but this approach yields a rigid system model without non-linear cross relation between time-scales. Several functional analysis properties allow us to develop a full, principled family of kernel @c-filters. The improved performance in several application examples suggest…
The Criminals in Vilnius
2021
On 29 April 1930, the premiere of Ferdinand Bruckner’s The Criminals (original title Die Verbrecher) directed by Aleksander Zelwerowicz took place at the Teatr Wielki na Pohulance in Vilnius. After two performances, the play was cancelled by the mayor of Vilnius. The authorities of the city were outraged by the ‘drastic amoral scenes (homosexual love, abortion)’. Zelwerowicz submitted his resignation, which he withdrew a few days later. A performance combined with a debate on the drama was organised. One of the Literary Wednesdays was also devoted to a discussion about The Criminals. The Słowo daily published an open letter to the director Zelwerowicz ‘supporting his repertoire policy’. Eve…
Canopy Architecture Appraisal by Fractal Dimension of 'Flordastar' Peach Trees Grafted onto Different Rootstocks
2007
The objective of this research was to evaluate the modification of canopy architecture of ''Flordastar'' peach (Prunus persica L. Batsch) grafted onto rootstocks with different vigour, by the use of fractal dimension (D). The hypothesis was that different vigour rootstocks are able to modify the complexity of the branching pattern and that this effect can be assessed by a geometric parameter such as the fractal dimension (D) of the 2D projection of tree branching structure. The observations were carried out in a four-year-old experimental orchard of cv. ''Flordastar'' peach trees grafted onto Ishtara, Barrier, GF677 and MrS 2/5 rootstocks. On digital pictures of leafless, dormant peach tree…
„Reduta“ suka sau lizdelį, arba Osterwa Pohuliankoje
2020
Based on previously unknown archival materials discovered by the authors in the Lithuanian State Historical Archives in Vilnius, the author of the article is reconstructing the beginnings of the Polish theatre company “Reduta” in Vilnius and the discovery of new documents sheds new light on this story. The author attempts to reconstruct the economic and social conditions in which “Reduta” started its operation in Vilnius. The text concerns the period of 1925–1929. The author puts forward a thesis that the reasons for “Reduta’s” failure in Vilnius were the enormous costs of renovating the Grand Theatre on Pohulanka Street that resulted in unpayable debt in the first months of the theatre’s o…