Search results for "VARIATION"
showing 10 items of 2124 documents
Taxonomic complexity in the halophyte Limonium vulgare and related taxa (Plumbaginaceae): insights from analysis of morphological, reproductive and k…
2014
Part of a special issue on halophytes and saline adaptations Background and Aims Limonium is awell-known example of a group of plants that is taxonomically complex due to certain biological characteristics that hamper species’ delineation. The closely related polyploid species Limonium vulgare Mill., L. humile Mill. and L. narbonense Mill. are defined species and can be used for studying patterns of morphological and reproductive variation. The first two taxa are usually found in Atlantic Europe and the third in the Mediterranean region, but a numberof intermediate morphological formsmay be present alongside typical examples of these species. This study attempts to elucidate morphological, …
A new taxonomic arrangement in "Linaria" sect. "supinae" ("Antirrhineae")
2008
Como resultado de un estudio macromorfológico y de los caracteres seminales de Linaria benitoi Fern. Casas, endemismo de los alrededores del Cabo de Gata (SE Península Ibérica) y de los táxones del grupo de L. oblongifolia, se discuten la variabilidad y las relaciones morfológicas de este conjunto de plantas. Así, se propone la siguiente nueva combinación: Linaria oblongifolia subsp. benitoi (Fern. Casas) L. Sáez, M.B. Crespo, Juan & M. Bernal, comb. & stat. nov. As a result of a study of macromorphological and seed features of Linaria benitoi Fern. Casas, endemic to Cabo de Gata (SE Iberian Peninsula) and taxa included in the L. oblongifolia group, the variability and morphological relatio…
Species cohesion despite extreme inbreeding in a social spider.
2011
Colonial social spiders experience extreme inbreeding and highly restricted gene flow between colonies; processes that question the genetic cohesion of geographically separated populations and which could imply multiple origins from predecessors with limited gene flow. We analysed species cohesion and the potential for long-distance dispersal in the social spider Stegodyphus dumicola by studying colony structure in eastern South Africa and the cohesion between this population and Namibian populations previously published. Data from both areas were (re)analysed for historic demographic parameters. Eastern South African S. dumicola were closely related to an east Namibian lineage, showing coh…
<em>(Inter-)Fonología del Español Contemporáneo</em> (I)FEC: Methodology of a research program for corpus phonology
2018
The present contribution describes and discusses the methodology of the corpus phonological research program (Inter-)Fonología del Español Contemporáneo —(I)FEC—, which aims to document both the phonic variation in the Spanish-speaking world and the pronunciation of Spanish as an L2 and a foreign language in different learner groups. Partly based on the methodology of the French research program (Inter)Phonologie du Français Contemporain —(I)PFC—, (I)FEC includes, in addition to a word list with several (potential) minimal pairs and a reading task, also a discourse completion task (DCT) aiming to collect data for the analysis of different intonational tunes. The paper offers a detailed desc…
Comparing speaking situations in three different language tests
2013
The purpose of this study was to compare learner outcome when five similar speaking situations were offered in the speaking subtest in Finnish, Swedish and English intermediate level tests in the Finnish National Certificates language testing system. The overall aim was to investigate the tasks by comparing learner outcomes across the three tests and to seek explanations for the outcome in the learners’ selfreported demographic, language, educational and professional background.The speaking situations were selected from the NC item bank meaning that they have undergone the Item Response Theory based analyses which indicate that the tasks function well in all tests. More information was need…
¡Vaya Valla! El yeísmo en el español de Valencia
2016
In the last few years, the notion of yeismo has been approached from different perspectives; one of them is Sociolinguistics, the field in which the contribution of the present work is embedded. The aim of this article is to present the evolution of the phonetic process of delateralization of the phoneme /ʎ/ in favour of /ʝ/ in the use of Spanish by speakers in the bilingual speech community in Valencia and the sorrounding areas. From a traditional perspective, it was claimed that speakers in Valencia maintained the differentiation between the lateral and fricative palatals. However, more recent studies focus on the introduction and expansion of yeismo in particular areas in the Valencian r…
La variación formal de los cuantificadores en catalán: estudio diacrónico (siglos XV‒XX)
2020
AbstractThis article studies the formal variation of the existential quantifiers u/un (‘one; a, an’), algú/algun (‘someone; some’), ningú/ningun (‘no one, anyone; any’) and the distributive universal quantifier cada u/cada un (‘everyone’) in Catalan. The research is based on an extensive diachronic corpus of texts written between the 15th and 20th centuries. The author classifies the syntactic structures of these quantifiers and analyses their meaning and formal vacillations: apocopated form (without ‑n) vs. non-apocopated form (with ‑n). Although hesitations tend to disappear gradually during the period under analysis, the uses of these quantifiers change in Catalan dialects. In fact, dist…
The agreement of existential haber in three varieties of spoken Spanish
2020
Abstract This paper aims to present one of the most relevant linguistic phenomena of spoken Spanish on both sides of the Atlantic. The singular/plural forms of the verb haber with existential meaning have received considerable attention due to the fact that it is a linguistic variable that changes according to the variety of Spanish that is used. We report the findings from the research carried out within three speech communities: Valencia, Las Palmas and Mexico City, analysing the internal and external factors that may explain this linguistic variation. For this study we have selected these communities because all the data have been obtained according to the guidelines proposed in the PRES…
Aproximación al léxico del turismo activo: codificación lexicográfica, formación y variación denominativa
2015
En el presente artículo se describe el léxico que conforma el llamado turismo activo del español europeo y se analiza desde tres puntos de vista: su codificación lexicográfica, contrastando el diccionario de la Real Academia Española con diccionarios descriptivos; la formación de sus unidades, que abarca el fenómeno del préstamo y los distintos mecanismos de creación de palabras; y, en tercer lugar, la variación formal y denominativa que caracteriza este vocabulario. El corpus de voces y de muestras de uso ha sido extraído de Internet, en concreto de determinadas fuentes legislativas disponibles en la red y de diferentes páginas web promocionales. Igualmente, se han tomado como referencia d…
Las formas de tratamiento en el corpus PRESEEA-Valencia. Un estudio sociolingüístico
2018
En este artículo se hace un estudio de las formas de tratamiento utilizadas, tanto por el entrevistador como por los informantes, en el corpus PRESEEA-Valencia. Dicho estudio incluye un análisis cuantitativo, en el que se da cuenta de los resultados atendiendo al nivel sociocultural, el sexo, la edad y la lengua habitual de los informantes, y un estudio cualitativo, centrado en las motivaciones que llevan al interlocutor a utilizar una u otra forma de tratamiento. This work is a study of the form of address used both by the interviewer and the informants in the corpus belonging to PRESEEA - Valencia. This study includes a quantitative analysis, which shows the results according to the socio…