Aproximación al estudio del hábitat de la codorniz (Coturnix c. coturnix) en la isla de Tenerife

Aquest estudi s'emmarca en l’Illa de Tenerife realitzant-se sobre l'hàbitat de la Guatlla. El principal objectiu és la construcció d'un model teòric que permeti quantificar la qualitat de l'hàbitat físic i potencial per a la guatlla a l'Illa. Per aconseguir s'utilitzen sistemes d'informació geogràfica (SIG) adaptant metodologies utilitzades per altres autors. Es valida el model final amb l'actual pla insular de caça i finalment es conclou que el model creat és una eina per utilitzar en futures redaccions del pla insular de caça ja que aporta una major precisió que l'actual.

Delfinoteràpia: un abordatge terapèutic en persones amb TEA

El present treball emmarca el concepte d'autisme des del punt de vista de diversos autors tant espanyols com de la resta del món. Així­ mateix intenta fer comprendre l'autisme des de diferents teories. Un altre punt bàsic del treball és la descricpció de diferents teràpies amb animals per abordar l'autisme, i en concret es realitza un estudi fonamental de la delfinoteràpia i els resultats a curt plaç en el delfinari Aqualand de Tenerife, arribant a conclusions per tal de poder ampliar més l'estudi en la Tesi Doctoral.

Normalització d'un volum d'arxius en format MP3

Aquest projecte es pot dividir en tres parts: una primera part d'extracció dels components freqüencials de les trames d'arxius MP3, una segona part d'anàlisi i càlcul d'un factor de normalització a partir de les dades dels components freqüencials de diversos arxius MP3, i una última part amb la modificació correcta dels guanys de les trames dels arxius MP3 a partir del factor de normalització generat en la part anterior. En aquest treball de final de carrera s'implementen la primera i la tercera de les parts descrites anteriorment.

Disseny d'itineraris ambientals per [a] ús públic a Fornells de la Selva

Aquest projecte tracta del disseny de diferents itineraris ambientals per a ús públic a Fornells de la selva, amb l'objectiu de recuperar i revaloritzar l'espai del meandre de l'Onyar per a ús públic i per a desenvolupar activitats d' educcació ambiental

Anàlisis i proposta d’accés amb itineraris ciclables entre Girona i els municipis del seu entorn immediat

L’objectiu és proporcionar a la població de l’àrea d’estudi (Girona i municipis propers), eines i vies necessàries per tal que puguin ser eficients energèticament i efectius en la seva mobilitat quotidiana. Es crea un mapa d’aptitud per determinar la connexió idònia entre la ciutat de Girona i els municipis inclosos en l’àrea d’estudi mitjançant una xarxa de vies ciclistes, s’analitza el mapa d’aptitud amb la xarxa actual i futura de vies ciclistes, es proposen nous carrils bici per tal d’unir zones exemptes de vies ciclables i s’analitza l’opció de combinar el transport públic (tren i autobús) amb la bicicleta. Per definir la xarxa s’utilitza el programa SIG, considerant uns determinats paràmetres, en un radi de 15 km des de l’Ajuntament de Girona i es compara amb la xarxa de vies ciclables actuals i les propostes de futur. També s’inclou un pressupost

Pla de regulació dels camins del terme municipal de la Serra de Prades

Proposta de millora de gestió dels camins del municipi de Prades per tal de millorar la connexió a dins del municipi. L’estudi es basa en diferents apartats: inventari dels camins existents, recuperació dels antics camins ara en desús, disseny d’itineraris de natura (per a l’observació de la vegetació i fauna autòctona) i condicionament dels camins existents per permetre el pas de vehicles especials per a l’extinció d’incendis

Les Vies verdes del Vallès

En un moment en que Catalunya i, sobretot, la regió metropolitana de Barcelona, experimenta un procés d'ocupació del territori sense precedents, es especialment important avançar en l'estudi dels possibles connectors existents, el seu reconeixement i la seva delimitació en el planejament territorial, El 13 de juliol de 2004 es va signar i fer públic el Manifest de Sant Celoni pel reconeixement de les vies verdes del Vallès. En aquest manifest es demana, entre altres mesures, el reconeixement i la delimitació en el planejament territorial de 7 grans vies verdes: Obac-Olorda, Sant Llorenç-Collserola, Farell-Marina, Gallifa-Gallecs, Tagamanent-Cellecs, Calma-Corredor, Montseny-Montnegre. Totes aquestes vies exerceixen funcions de connexió ecològica i paisatgística entre les serralades Litoral i Prelitoral i, juntament amb altres espais menys urbanitzats que hi ha al peu de la serralada Prelitoral, integren el sistema d'espais oberts del Vallès. Aquesta ponència presenta, en primer lloc, el marc conceptual on s'inscriu el concepte via verda. En segon lloc, explica els principals antecedents en relació amb les vies verdes del Vallès que apareixen en el Manifest de Sant Celoni, i, finalment l’encaix de les vies verdes del Vallès en el planejament territorial de la regió metropolitana de Barcelona, així com les principals línies estratègiques que es podrien seguir per convertir-les en una realitat

Portulaca granulato-stellulata new for El Hierro Islands( Canary Islands).

Portulaca granulato-stellulata (Poellnitz) C. Ricceri & P. V. Arrigoni is a subcosmopolitan plant of uncertain origin (DANIN et al., 1978; DANIN, 2000). It has been recently reported from Tenerife Island (DANIN & REYES-BETANCORT, 2006), the first reference for the Canary Islands, since prior to this, the taxon had not been detected from any of the Macaronesian islands. Its presence was undetected due to its inclusion within the complex Portulaca oleracea sensu lato (HANSEN & SUNDING, 1993: 170; STIERSTORFER & GAISBERG, 2006).

The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.

Geological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological histories. The island of Tenerife, in the Canary Islands, emerged in the late Miocene as 3 precursor islands that were subsequently connected and reisolated by volcanic cycles. The spider Dysdera verneaui is endemic to the island of Tenerife, where it is widely distributed throughout most island habitats, providing an excellent model to investigate the role of physical barriers and ecological adaptation in shaping within-island diversity. Here, we present evidence that the phylogeographic patterns of this species trace back to the independent emergence of the protoislands. Molecular markers (mitochondrial genes cox1, 16S, and nad1 and the nuclear genes ITS-2 and 28S) analyzed from 100 specimens (including a thorough sampling of D. verneaui populations and additional outgroups) identify 2 distinct evolutionary lineages that correspond to 2 precursor islands, each with diagnostic genital characters indicative of separate species status. Episodic introgression events between these 2 main evolutionary lineages explain the observed incongruence between mitochondrial and nuclear markers, probably as a result of the homogenization of their ITS-2 sequence types. The most widespread lineage exhibits a complex population structure, which is compatible with either secondary contact, following connection of deeply divergent lineages, or alternatively, a back colonization from 1 precursor island to another.

The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.

Geological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological histories. The island of Tenerife, in the Canary Islands, emerged in the late Miocene as 3 precursor islands that were subsequently connected and reisolated by volcanic cycles. The spider Dysdera verneaui is endemic to the island of Tenerife, where it is widely distributed throughout most island habitats, providing an excellent model to investigate the role of physical barriers and ecological adaptation in shaping within-island diversity. Here, we present evidence that the phylogeographic patterns of this species trace back to the independent emergence of the protoislands. Molecular markers (mitochondrial genes cox1, 16S, and nad1 and the nuclear genes ITS-2 and 28S) analyzed from 100 specimens (including a thorough sampling of D. verneaui populations and additional outgroups) identify 2 distinct evolutionary lineages that correspond to 2 precursor islands, each with diagnostic genital characters indicative of separate species status. Episodic introgression events between these 2 main evolutionary lineages explain the observed incongruence between mitochondrial and nuclear markers, probably as a result of the homogenization of their ITS-2 sequence types. The most widespread lineage exhibits a complex population structure, which is compatible with either secondary contact, following connection of deeply divergent lineages, or alternatively, a back colonization from 1 precursor island to another.

The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.

Geological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological histories. The island of Tenerife, in the Canary Islands, emerged in the late Miocene as 3 precursor islands that were subsequently connected and reisolated by volcanic cycles. The spider Dysdera verneaui is endemic to the island of Tenerife, where it is widely distributed throughout most island habitats, providing an excellent model to investigate the role of physical barriers and ecological adaptation in shaping within-island diversity. Here, we present evidence that the phylogeographic patterns of this species trace back to the independent emergence of the protoislands. Molecular markers (mitochondrial genes cox1, 16S, and nad1 and the nuclear genes ITS-2 and 28S) analyzed from 100 specimens (including a thorough sampling of D. verneaui populations and additional outgroups) identify 2 distinct evolutionary lineages that correspond to 2 precursor islands, each with diagnostic genital characters indicative of separate species status. Episodic introgression events between these 2 main evolutionary lineages explain the observed incongruence between mitochondrial and nuclear markers, probably as a result of the homogenization of their ITS-2 sequence types. The most widespread lineage exhibits a complex population structure, which is compatible with either secondary contact, following connection of deeply divergent lineages, or alternatively, a back colonization from 1 precursor island to another.

Seroprevalence of Angiostrongylus cantonensis in wild rodents from the Canary Islands

Background: Angiostrongylus cantonensis is a lungworm of rats (Muridae) that is the causative agent of human cerebral angiostrongyliasis. The life cycle of A. cantonensis involves rats and mollusks as the definitive and intermediate hosts, respectively. This study was designed to increase the knowledge about the occurrence and distribution of A. cantonensis in its definitive host in the Canary Islands, using parasitological and serological analysis in different areas and age groups.Methodology/Principal Findings: Between 2009 and 2010, 54 black rats (Rattus rattus) from Tenerife were captured from six human-inhabited areas and sera samples were obtained. The lung nematodes were identified by morphological and molecular tools as A. cantonensis. The 31-kDa glycoprotein antigen was purified from A. cantonensis adult worms by electrophoresis and electroelution. Of the 54 tested rodents, 30 showed IgG antibodies against A. cantonensis 31-kDa antigen by ELISA. Therefore, the overall seroprevalence was 55.6% (95% CI: 42.4-68). Seroprevalent rodents were found in all the 6 areas. This 31-kDa antigen was not recognized by some sera of rats infected by other helminth species (but not A. cantonensis). Seroprevalence of IgG antibodies against A. cantonensis and prevalence based on the presence of adult worms showed significant correlation (R2 = 0.954, p,0.05). Conclusions/Significance: The present results could indicate a high prevalence of A. cantonensisin Tenerife and suggest the inclusion of two new zones in the distribution area of the parasite. The commonness and wide distribution of A. cantonensis in rats implies the presence of intermediate hosts, indicating that humans may be at risk of getting infected.

Estimación de funciones no lineales en mezclas post-no lineales

This paper proposes a new method for blindly inverting a nonlinear mapping which transforms a sum of random variables. This is the case of post-nonlinear (PNL) source separation mixtures. The importance of the method is based on the fact that it permits to decouple the estimation of the nonlinear part from the estimation of the linear one. Only the nonlinear part is inverted, without considering on the linear part. Hence the initial problem is transformed into a linear one that can then be solved with any convenient linear algorithm. The method is compared with other existing algorithms for blindly approximating nonlinear mappings. Experiments show that the proposed algorithm outperforms the results obtained with other algorithms and give a reasonably good linearized data