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Habitat use and foraging success of Roseate and Common Terns feeding in flocks in the Azores; Uso del hábitat y éxito en la búsqueda de alimento en bandos del charrán rosado y charrán común en Azores

Monticelli, David; Ramos, Jaime A.; Pereira, José
Fonte: Spanish Society of Ornithology Publicador: Spanish Society of Ornithology
Tipo: Artigo de Revista Científica
ENG
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Aims: To study the foraging ecology of roseate terns and common terns in the Azores sub-tropical wa- ters where the former species is relatively abundant compared to congeners. In particular, we asked whether foraging behaviour differed between both species, which factors determined individual success at forag- ing-flocks, and how did our findings compare with previous studies of Atlantic populations in North Amer- ica (temperate), and Caribbean (tropical). Location: Ponta das Contendas (38°39’N, 27°05’W), Terceira Island, Azores. Methods: Foraging-flocks were characterized and compared in terms of species (single- or mixed- species), size (no. of individuals), type of habitat (inshore, exposed coast, deep blue water), and presence- absence of biotic effects. We used a generalized linear model (GLM) approach to study the effect of se- lected factors (species, habitat, biotic effect, cloud cover, wind speed, and their interactions) on individual foraging parameters at these flocks (number of dives min-1, number of aborted dives min-1, number of prey caught min -1). Results: Both tern species were most often observed in mixed-flocks in the exposed coast habitat, but roseate terns were also prone to feed in mono-specific flocks over blue water. Only one quarter of the to- tal number of flocks recorded was in the presence of biotic effects...

Phylogeography and genetic diversity of the Robin (Erithacus rubecula) in the Azores Islands: Evidence of a recent colonisation

Rodrigues, Pedro; Lopes, Riacardo Jorge; Drovetski, Sergei V.; Reis, Sandra; Ramos, J. A.; Tristão da Cunha, Regina
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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We present new insights into the phylogeography of the Robin, Erithacus rubecula, from the seven Azores Islands where it breeds, based on sequences of mitochondrial and nuclear genes from 35 individuals (five from each of the seven islands) as well as outgroup/comparison samples from Madeira, Canary Islands and Continental Western Palearctic (Europe and North Africa). To understand the level of concordance between the genetic data and morphometric variability, eight morphometric characters were analysed for 113 birds for the seven Azores Islands populations. Our results revealed that Robins from the Azores possess low genetic diversity and share their most common haplotype with Madeira and the Continental Western Palearctic Robins, which support the hypothesis of one recent founder event and a fast range expansion to most of the Azores Islands. Nevertheless, despite this lack of neutral genetic differentiation, morphological differences were found among islands, which could be attributed to natural selection processes. The morphological data show that birds from Sa˜o Miguel had the longest wings and largest body mass, and that birds from Graciosa had the smallest bill length. This recent colonisation could be the reason for the absence of Robins in the westernmost islands of the Azores.; P Rodrigues and RJ Lopes were supported by grant funding from FCT - Portuguese Foundation for Science and Technology (SFRH/BD/36084/2007 and SFRH/BPD/ 40786/2007 respectively). The study was also partially supported by FCT project PTDC/BIA-BEC/103435/2008 to S. Drovetski.

Aspectos fonéticos, lexicais e morfossintáticos da variante açoriana catarinense; Morphosyntactical, lexical and phonetics aspects of the variant from Azores of Santa Catarina

Nogueira, Amabile Bianca
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 27/03/2007 PT
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Diz-se que há uma grande influência açoriana no litoral catarinense. Muitos trabalhos são realizados para estudar esse tema, porém, poucos analisam esse fato do ponto de vista lingüístico, principalmente em seus aspectos fonéticos e morfossintáticos. As poucas pesquisas realizadas estão voltadas para características muito gerais da fala catarinense ou se concentram na região de Florianópolis, atual capital do Estado. A escassez de material indica que pouco se conhece sobre a dita influência açoriana. O presente trabalho propõe investigar a fala de duas das três regiões mais antigas de Santa Catarina, cuja base de colonização foi açoriana: a antiga região de Itapocorói (que atualmente compreende a área dos municípios de Penha, Balneário de Piçarras e uma pequena parte do sul de Barra Velha) e o povoado de Nossa Senhora das Graaças do Rio São Francisco (hoje São Francisco do Sul). Para isto, foi preciso realizar duas pesquisas lingüísticas de campo, uma na região de Itapocorói e outra em São Francisco do Sul, com a finalidade de descrever as variantes atuais locais e verificar possíveis transformações fonéticas, lexicais e morfossintáticas em um grupo de sessenta informantes divididos em três faixas etárias distintas (trinta de cada localidade pesquisada). Foram utilizados dados colhidos em trabalho de campo por meio de: (a) locução espontânea; (b) aplicação de questionário lingüístico com 49 perguntas; (c) questionário valorativo com 6 perguntas. As características apontadas serão aquelas que...

Seismic activity in the Azores Region in the contexto of the western part of the Eurasia-Nubia plate boundary

Bezzeghoud, M.; Borges, J.F.; Caldeira, B.; Buforn, E.; Udias, A.
Fonte: Universidade de Évora Publicador: Universidade de Évora
Tipo: Artigo de Revista Científica
POR
Relevância na Pesquisa
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The western part of the Eurasia-Nubia plate boundary, with different tectonic features, extends from the Azores Islands to the Strait of Gibraltar. Based on focal mechanisms of large earthquakes, we observe the conversion of an extensional regime (Strike-slip and normal dip-slip motion) near to the Azores to a compressional regime (strike-slip and reverse dip-slip motion) in the east of the Atlantic Ocean (Gulf of Cádiz). The character of this plate boundary is defined by a clear seismicity, which is mainly controlled by the tectonic activity existing along the Azores Gibraltar Fracture Zone (AGFZ), which extends from the Azores Islands to the Strait of Gibraltar. Seismic activity and moment tensor solutions of earthquakes indicate that present-day interplate collisional coupling in the Western Mediterranean region is most pronounced in western Iberia and the offshore Atlantic marked by NW to N-directed horizontal compressional stresses. This is also reflected by the occurrence of large historical and instrumental earthquakes, in particular by the recent earthquakes occurred on 1980 (Mw=6.8), 1997 (Mw=6.2), 1998 (Mw=6.2) and 2007 (Mw=6.3, Mw=6.1) in the Azores Islands and on 1969 (Mw=7.8) and 2007 (Mw=6.1) off coast of South-Western Portugal. In this work we discuss the seismic activity of the Azores region in the context of the Eurasia-Nubia plate boundary.

Geochemical evidence for melting of carbonated peridotite on Santa Maria Island, Azores

Beier, Christoph; Mata, João; Stöckhert, Ferdinand; Mattielli, Nadine; Brandl, Philipp; Madureira, Pedro; Genske, Felix; Martins, Sofia; Madeira, José; Haase, Karsten
Fonte: Contributions to Mineralogy and Petrology Publicador: Contributions to Mineralogy and Petrology
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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The islands of the Azores archipelago emerge from an oceanic plateau built on lithosphere increasing in age with distance from the Mid-Atlantic Ridge from 10 to 45 Ma. Here, we present the first comprehensive major and trace element and Sr–Nd–Pb isotope data from Santa Maria, the easternmost island of the archipelago, along with published data from the other Azores islands situated much closer to the Mid-Atlantic Ridge axis. We can show that the distinctively more variable and more enriched trace element ratios at Santa Maria combined with a relatively small range in Sr–Nd–Pb isotope ratios are the result of low degrees of partial melting of a common Azores mantle plume source underneath thicker lithosphere. This implies that melt extraction processes and melting dynamics may be able to better preserve the trace element mantle source variability underneath thicker lithosphere. These conclusions may apply widely for oceanic melts erupted on relatively thick lithosphere. In addition, lower Ti/Sm and K/La ratios and SiO2 contents of Santa Maria lavas imply melting of a carbonated peridotite source. Mixing of variable portions of deep small-degree carbonated peridotite melts and shallow volatile-free garnet peridotite could explain the geochemical variability underneath Santa Maria in agreement with the volatile-rich nature of the Azores mantle source. However...

Mantle dynamics and volcanism emplacement in the Azores

Adam, Claudia; Lourenço, Nuno; Madureira, Pedro; Miranda, Miguel; Yoshida, M.
Fonte: Universidade de Évora Publicador: Universidade de Évora
Tipo: Aula
POR
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The Azores plateau is a triangular shaped topographic feature encompassing the boundary zone where three major tectonic plates (EU, NU and NA) meet. The eastern side of the plateau is delimited by two major tectonic discontinuities: the Mid Atlantic Ridge, and the Terceira Rift, a recently formed ultra-slow-spreading ridge. The origin of the plateau is still under debate. One hypothesis argues that the plateau would have been formed by successive NE jumps of the oblique spreading axis, where the present TR is the latest stage. Other hypotheses invoke the northward jump of the Azores triple junction, during which the Azores region would have been transferred from the Eurasian plate to the Nubian plate. For some authors, the presence of the Azores plume, a low seismic velocity zone in the mantle beneath, is required to explain the observations: the anomalously shallow seafloor depth as well as the geochemistry of the basaltic lavas erupted within the plateau. Here we use a highly resolved tomography model to quantify the influence of this plume and the surrounding mantle.We model the convection pattern, the induced dynamic topography and stresses, and compare them with the surface observations. The dynamic topography shows two maxima: one northwest of St. Miguel...

The Terceira Rift, Azores: a melt inclusion study of submarine lavas

Marques, Filipa; Scott, Steve; Madureira, Pedro; Conceição, Patrícia; Lourenço, Nuno; Rosa, Carlos
Fonte: Geochemical Society Publicador: Geochemical Society
Tipo: Aula
ENG
Relevância na Pesquisa
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The Azores plateau, a bathymetric high, is seated on an anomalous mantle domain located in the Azores Triple Junction where the American, EUR and AFR lithospheric plates meet. The cause for these anomalies is controversial but many authors consider the presence of an anomalously hot/wet enriched mantle probably supplied by a plume [3]. The origin, size and present location of the plume is under debate but an area near Terceira is the favoured plume centre [2]. The Terceira Rift (TR) defines the EUR/AFR plate boundary of the Azores triple junction. The TR is a 550 km long, generally ESE trending line of volcanic massifs along the axis (e.g. São Miguel, D. João de Castro, Terceira and Graciosa) alternating with deep basins (e.g. Hirondelle basin) interpreted as volcanically unfilled rift valley segments [3]. Vesicular, porphyritic basalts were sampled along the Terceira Rift during Portuguese scientific cruises (EMEPC 2007-2009). Initial studies focused on the adjacent areas Don João de Castro - DJC (submarine volcano) and Hirondelle - Hir (basin). Major and trace element data of phenocrysts (olivine, clinopyroxene, plagioclase), groundmass and exposed melt inclusions found in these vesicular lavas depict only slight differences between the two sites. DJC samples depict higher Fo and Mg# in olivine and clinopyroxene...

Mantle dynamics and characteristics of the Azores plateau

Adam, Claudia; Madureira, Pedro; Miranda, Jorge Miguel; Lourenço, Nuno; Yoshida, M.; Fitzenz, Delphine
Fonte: Elsevier - Earth and Planetary Science Letters Publicador: Elsevier - Earth and Planetary Science Letters
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
37.28%
Situated in the middle of the Atlantic Ocean, the Azores plateau is a region of elevated topography encompassing the triple junction between the Eurasian, Nubian and North American plates. The plateau is crossed by the Mid-Atlantic Ridge, and the Terceira Rift is generally thought of as its northern boundary. The origin of the plateau and of the Terceira Rift is still under debate. This region is associated with active volcanism. Geophysical data describe complex tectonic and seismic patterns. The mantle under this region is characterized by anomalously slow seismic velocities. However, this mantle structure has not yet been used to quantitatively assess the influence of the mantle dynamics on the surface tectonics. In this study, we use a highly resolved tomography model to model the convection occurring in the mantle beneath the Azores region. The convection pattern points out two distinct upwelling, thus proving that the volcanism emplacement is created by a buoyant mantle upwelling. The modeled dynamic topography recovers well the characteristics of the depth anomaly associated with the Azores plateau, except for the south-eastern most part, thus proving that most of the depth anomaly associated with the Azores plateau is created by the present-day mantle dynamics. The stresses induced by the mantle convection can account for the rifting regime observed over the Azores plateau and the Terceira Rift...

Helium isotope systematics in the vicinity of the Azores triple junction: Constraints on the Azores geodynamics. Chemical Geology, 372, 62-71.

Madureira, Pedro; Moreira, Manuel; Mata, João; Nunes, João Carlos; Gautheron, Cecile; Lourenço, Nuno; Carvalho, Maria do Rosário; Pinto de Abreu, Manuel
Fonte: Chemical Geology Publicador: Chemical Geology
Tipo: Artigo de Revista Científica
POR
Relevância na Pesquisa
37.41%
We present new He isotopic data from subaerial and submarine samples collected along the Terceira Rift (Azores Plateau) in order to constrain the sources involved in the Azoresmagmatismin the unique geodynamic contextof the Azores triple junction. Lower thanMORB 4He/3He isotopic ratioswere determined on olivines fromthe Terceira Island and the adjacent Serreta submarine ridge (down to≈69,000;≈10.5 R/Ra),which in addition to the Ne isotopes previously published inMadureira et al. (2005) [Primitive heliumand neon isotopes in Terceira Island: Constraints on the origin of the Azores archipelago. Earth and Planetary Science Letters 233, 429–440], support the geochemical models that consider the involvement of the lower mantle in the Azores magmatism. The analysis of He data published for the Mid-Atlantic Ridge (MAR) points to the existence of chemically distinct mantle domains underneath Eurasia and Nubia lithospheric plates, which can result from an heterogeneous distribution of asthenosphere metasomatism during the initial stages of plume activity in the Azores region. At the Terceira Rift, lavas from Graciosa Island, as well as from the western end of São Miguel Island and D. João de Castro Bank, display 4He/3He ratios similar to those observed along the MAR segments located to the north of the Azores triple junction area. Conversely...

Ramularia rubella and Uromyces rumicis infecting Rumex obtusifolius in the Azores

Silva, Luís; Tavares, João; Brasseur, Raphael
Fonte: Sociedade Afonso de Chaves Publicador: Sociedade Afonso de Chaves
Tipo: Artigo de Revista Científica
Publicado em //1997 ENG
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Rumex spp. (Polygonaceae), namely Rumex obtusifolius L., are considered as weeds in permanent pastures in São Miguel island (Azores), demanding manual and chemical control. However, R. obtusifolius plants are found to be heavily infected by Ramularia rubella (Bon.) Nannf. or by Uromyces rumicis (Schum.) Wint. This is the first record of R. rubella for the Azores. This hyphomycete infects all the phenophases of R. obtusifolius and is found widely distributed on São Miguel island. Infected leaves of R. obtusifolius may present more than one hundred red spots each, as well as conidiophores and conidia. U. rumicis, already recorded for the Azores on Rumex pulcher L., was now found infecting all the phenophases of R. obtusifolius in São Miguel island. Leaves infected by the rust become chlorotic and covered by uredosori and uredospores. In late summer teleosori and teleospores were also found. Both fungi are potential biological control agents of Rumex spp. in the Azores.

Shallow-water marine molluscs of the Azores : biogeographical relationchips.

Ávila, Sérgio P.
Fonte: Universidade dos Açores Publicador: Universidade dos Açores
Tipo: Artigo de Revista Científica
Publicado em //2000 ENG
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Shallow-water marine molluscs of the Azores were surveyed from supralittoral to a depth of 45 m which yielded an up-to-date database. The resulting list of 231 confirmed taxa of the Azores was then compared with similar lists from Scandinavia, Belgium, British Isles. Gulf of Biscay to Galiza. Portugal, Western Mediterranean. Morocco and Mauritania, Madeira, Porto Santo, Desertas and Selvagens, Canary Islands. Cape Verde, Ascension Island? Saint Helena, and the Caribbean. A total of 18 species and 1 subspecies (Tricolia pullus azorica) are considered to be endemic to the Azores. There arc 20 new records to the Azores: Metaxia abrupta(Watson, 1880), Monophorus erythrosoma(Bouchet & Guillemot, 1978), Melanella sp., Lamellaria latens (0. F. Muller, 1776), Ranella olearia (Linnaeus, 1758), Ocinebrina edwardsi (Payraudeau, 1826), Fusinus sp., Nassarius corniculus (Olivi, 1792), Crassopleura incrassata (Dujardin, 1837). Heliacus architae (O.G. Costa, 1867), Cima cf. minima (Jeffreys, 1858). Odostomia conoidea (Brocchi, 1814), Ondina diaphana (Jeffreys, 1848), Chromodoris khroni (Verany, 1846), Chlamys flexuosa Poli. 1795, Loripes lacteus (Linnaeus, 1758). Bornia sp., Parvicardium exiguum (Gmelin, 1791), Gastrana fragilis (Linnaeus. 1758) and Praphia aurea (Gmclin...

The marine algal (seaweed) flora of the Azores: additions and amendments.

Tittley, Ian; Neto, Ana I.
Fonte: Walter de Gruyter Publicador: Walter de Gruyter
Tipo: Artigo de Revista Científica
Publicado em /08/2005 ENG
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Copyright © 2005 by Walter de Gruyter.; Thirteen species of benthic marine algae are reported new for the isolated mid-Atlantic Azores archipelago and five older records are confirmed. Seven (Bangia atropurpurea, Codium fragile spip. tomentosoides, Ectocarous fasciculatus, E siliculosus, Porphyrostromium ciliare, Ulothrix flacca and Ulvaria oxysperma) are widespread amphi-Atlantic species some of which extend in distributional range south to the Canary Islands. Cryptonemia seminervis, Ctenosiphonia hypnoides and Phyllophora sicula are known from the northeastern Atlantic Ocean only and also occur in the Canary Islands. The Azores archipelago is the western limit of distribution of Codium fragile ssp. atlanticum, Bostrychia scorpioides, Bryopsis cupressina, Erythroglossum laciniatum, Haliptilon squamatum and Phyllophora sicula, and the southern limit of C. fragile ssp. atlanticum and E laciniatum. The tropical species Phyllodictyon anastomosans, Valonia macrophysa and Wurdemannia miniata reach their northern limit of distribution there. Asparagopsis taxiformis is now less common possibly due to competition with the non-native A. armata; subspecies of the non-native C. fragile now occur widely in the Azores. The status of Fucus vesiculosus...

Rocky shore macroalgae communities of the Azores (Portugal) and the British Isles : a comparison for the development of ecological quality assessment tools

Macedo, Francisco Luís Wallenstein Faria e Maia de
Fonte: Universidade dos Açores Publicador: Universidade dos Açores
Tipo: Tese de Doutorado
Publicado em 07/06/2011 ENG
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PhD Marine Biology; This thesis focuses on intertidal seaweed communities on rocky shores and was planned to provide solid scientific background for the application of the EU Water Framework Directive (WFD) to the Azores based on the tool developed for British shores. The main structuring factors for rocky shore intertidal communities are briefly described and characterized for each of the two regions. Rocky shore intertidal seaweed communities of the British Isles and the Azores are compared based on presence/absence data recorded in single occasion visits to individual stretches of shore. The existing numerical indices used for the assessment of ecological quality for the WFD in the British Isles and in northern Spain have been tested for Azorean shores and adaptations proposed in order to incorporate differences between regions. A new alternative index is proposed for the Azores and possibly for remaining Macaronesian archipelagos that combines features used in the British Isles and in northern Spain. A first account is given of seaweed communities and their ecological quality classification at two rocky shores affected by shallow water hydrothermal activity. In the Azores, this is the closest to polluted shores, with which to test quality assessment tools. The accumulation of heavy metals in different seaweeds has been quantified and compared between the vicinity of shallow water hydrothermal activity and of urban development in the Azores. The concentration of heavy metals in Fucus spiralis has been compared between samples affected by hydrothermal seeps in the Azores and by acid mine drainage in the British Isles. Preliminary culture experiments provide an insight on the influence of temperature and acidity on the growth and photosynthesis of F. spiralis...

Marine Fishes of the Azores : annotated checklist and bibliography : a catalogue of the Azorean marine ichthyodiversity

Santos, Ricardo S.; Porteiro, Filipe M.; Barreiros, João P.
Fonte: Universidade dos Açores Publicador: Universidade dos Açores
Tipo: Livro
Publicado em //1997 ENG
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37.41%
A list of the marine fishes of the Azores is presented. The list is based on a review of the literature combined with an examination of selected specimens available from collections of Azorean fishes deposited in museums, including the collection of fish at the Department of Oceanography and Fisheries of the University of the Azores (Horta). Personal information collected over several years is also incorporated. The geographic area considered is the Economic Exclusive Zone of the Azores. The list is organised in Classes, Orders and Families according to Nelson (1994). The scientific names are, for the most part, those used in Fishes of the North-eastern Atlantic and the Mediterranean (FNAM) (Whitehead et al. 1989), and they are organised in alphabetical order within the families. Clofnam numbers (see Hureau & Monod 1979) are included for reference. Information is given if the species is not cited for the Azores in FNAM. Vernacular names are always both presented in Portuguese (Azorean names) and English. Synonyms, misspellings and misidentifications found in the literature in reference to the occurrence of species in the Azores are also quoted. The 460 species listed, belong to 142 families; 12 species are cited for the first time for the Azores. Details are given for 23 other species cited for the first time for the Azores in the Red Book of Portuguese Vertebrates (ICN 1993). Fifty-four ambiguous and/or exceptional occurrences are included in an appendix. A second appendix contains the remaining corrections to the checklist of fish included in ICN (1993). The paper concludes with a synthesis and an annotated indexed bibliography of the marine fishes of the Azores. Most references are available through the library of the Department of Oceanography and Fisheries of the University of the Azores.

Phylogeography and molecular phylogeny of Macaronesian island Tarphius (Coleoptera: Zopheridae): why so few species in the Azores?

Amorim, Isabel R.; Emerson, Brent C.; Borges, Paulo A. V.; Wayne, Robert K.
Fonte: Blackwell Publishing Ltd Publicador: Blackwell Publishing Ltd
Tipo: Artigo de Revista Científica
Publicado em /09/2012 ENG
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37.32%
Copyright © 2012 Blackwell Publishing Ltd.; AIM: We used a phylogenetic framework to examine island colonization and predictions pertaining to differentiation within Macaronesian Tarphius (Insecta, Coleoptera, Zopheridae), and explain the paucity of endemics in the Azores compared with other Macaronesian archipelagos. Specifically, we test whether low diversity in the Azores could be due to recent colonization (phylogenetic lineage youth), cryptic speciation (distinct phylogenetic entities within species) or the young geological age of the archipelago. LOCATION: Macaronesian archipelagos (Azores, Madeira and the Canary Islands), northern Portugal and Morocco. METHODS: Phylogenetic analyses of mitochondrial and nuclear genes of Tarphius beetles of the Azores, other Macaronesian islands and neighbouring continental areas were used to investigate the origin of island biodiversity and to compare patterns of colonization and differentiation. A comparative nucleotide substitution rate test was used to select the appropriate substitution rate to infer clade divergence times. RESULTS: Madeiran and Canarian Tarphius species were found to be more closely related to each other, while Azorean taxa grouped separately. Azorean taxa showed concordance between species and phylogenetic clades...

The Arthropoda fauna of Corvo island (Azores): new records and updated list of species

Vieira, Virgílio; Borges, Paulo A. V.; Karsholt, Ole; Wunderlich, Jörg
Fonte: Universidad de La Laguna Publicador: Universidad de La Laguna
Tipo: Artigo de Revista Científica
Publicado em //2003 ENG
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37.38%
Copyright © 2003 Universidad de La Laguna.; Se exponen los resultados de artrópodos (phylum Arthropoda) colectados y observados en la isla de Corvo, archipiélago de las Azores, durante los días 26.VII.1999 y 11-13.IX.2002. Con la inclusión de la literatura disponible, se citan 175 especies y subespecies (11.43% son comunes a las otras islas de las Azores), repartidas per 16 órdenes y 83 familias, de las que 32 son nuevas citas para la isla de Corvo. Phaneroptera nana Fieber (Orthoptera: Tettigonidae) se cita por primera vez para las Azores.; ABSTRACT: The arthropod fauna (phylum Arthropoda) from the island of Corvo, Azores archipelago, was surveyed during four sampling days (26 July 1999; 11-13 September 2002). In the present contribution 32 species and subspecies of arthropods are listed as new records. Phaneroptera nana Fieber (Orthoptera: Tettigonidae) is also new to Azores. The preliminary checklist for Corvo island includes a total of 175 species and subspecies (11.43% are common endemics to the Azores), belonging to 16 orders and 83 families.

Description of the Terrestrial and marine biodiversity of the Azores

Borges, Paulo A. V.; Bried, Joël; Costa, Ana C.; Cunha, Regina Tristão da; Gabriel, Rosalina; Gonçalves, Vitor; Martins, António M. de Frias; Melo, Ireneia; Parente, Manuela I.; Raposeiro, Pedro M.; Rodrigues, Pedro; Santos, Ricardo S.; Silva, Luís;
Fonte: Principia Publicador: Principia
Tipo: Parte de Livro
Publicado em //2010 POR
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37.36%
1. Os Açores são um arquipélago isolado de nove ilhas oceânicas, pertence à região biogeográfica da Macaronésia e está entre as regiões mais ricas em fungos, plantas e animais da Europa. Este capítulo destaca o que sabemos sobre os fungos, a fauna e a flora dos habitats terrestres, dulçaquícolas e marinhos dos Açores. 2. Neste capítulo, são apresentadas as estimativas do número total de espécies e subespécies conhecidas actualmente nos Açores. Todos os grupos taxonómicos terrestres mais importantes foram analisados: fungos, líquenes, diatomáceas dulçaquícolas, briófitos (musgos, hepáticas e antocerotas), plantas vasculares (licófitas, fetos, gimnospérmicas e angiospérmicas), platelmintes (vermes), nemátodos, anelídeos (minhocas), moluscos terrestres (lesmas e caracóis), artrópodes (insectos, aracnídeos, milípedes, etc.) e vertebrados (peixes de água doce, anfíbios, répteis, aves e mamíferos). A presente obra inclui também espécies do ambiente marinho, como as algas (macroalgas), a maioria dos filos de invertebrados do litoral e os vertebrados marinhos (répteis, peixes e mamíferos). As listas de espécies e subespécies (Capítulos 2-15) são baseadas nos taxa identificados numa grande variedade de publicações...

Contributions of Marine Cluster for Regional Sustainability: Economic Prospective for Azores

Paramio, Luz; Tiago, Maria Teresa Borges; Tiago, Flávio Borges; Vieira, José Cabral
Fonte: Instituto de Estudos Políticos da Universidade Católica Portuguesa Publicador: Instituto de Estudos Políticos da Universidade Católica Portuguesa
Tipo: Artigo de Revista Científica
Publicado em /07/2013 ENG
Relevância na Pesquisa
37.41%
The project SEAValue proposes to develop a first integrate approach to valuation of the Sea of Azores from economic view analyses.The project aims the estimation of the contribution of the sea, namely, maritime sector and marine ecosystem services, and their benefits for the sustainable development of the Autonomous Region of Azores through a responsive and effective decision support process.Nowadays, the world context of the sustainable ocean governance is one of the paradigms that the Azores Autonomous Region should address, in particular, due to the geographical position in the core of the Atlantic area and its geopolitical implicit factors. The extension of the Portuguese EEZ would raise new challenges and responsibilities to sea management. Different governance transversal issues as legal, planning, conservation, economic and their scales of articulation into local, national, European and international level, need a coherent governance framework. Estimate the value, specially the economic value, bring the awareness of the benefits that sea offers to Azores. Furthermore it would enhance the decision support process through define of strategic options for the development of public policy of the Region. The multidisciplinary research of the project from Governance...

Testing a novel spatially-explicit dynamic modelling approach in the scope of the laurel forest management for the endangered Azores bullfinch (Pyrrhula murina) conservation.

Fonte: Universidade de Trás-os-Montes e Alto Douro Publicador: Universidade de Trás-os-Montes e Alto Douro
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
37.28%
The Azores bullfinch (Pyrrhula murina) is an endemic bird of São Miguel island (Azores Archipelago, Portugal), currently threatened by two of the major causes of biodiversity loss worldwide: invasion of native habitats by exotic plants and habitat destruction by land use changes. The aim of this research was to develop and test a novel spatially explicit modelling framework that predicts the Azores bullfinch responses to alternative realistic scenarios of native forest management. This was done by integrating Multi-Model Inference statistical analysis, Stochastic-Dynamic Modelling and Geographic Information Systems under a common framework relating bird population trends to changes in the surrounding habitats. Overall, in the next 25 years, the Azores bullfinch breeding population was predicted to increase around 19% as a consequence of habitat management actions already implemented (‘‘LIFE Priolo’’ project) or around 27% in the context of realistic future habitat restoration scenarios. These results represent, respectively, a supplementary increase of more 6% or more 13% in the Azores bullfinch abundance when compared with the trends simulated for the scenario without management. Nevertheless, those actions seemed to be relatively ineffective in promoting the expansion of the species from the actual restricted favourable area...

Phylogeography and historical demography of the warm water costal fish of the Azores in the context of the recent evolution of the Atlantic and Mediterranean

Domingues, Vera dos Santos
Fonte: Universidade dos Açores, Horta Publicador: Universidade dos Açores, Horta
Tipo: Tese de Doutorado
Publicado em //2007 ENG
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37.32%
Tese de Doutoramento apresentada á Universidade dos Açores, Horta; In this thesis the evolutionary relationships of the inshore fish fauna of the northeastern Atlantic and Mediterranean were assessed. Twelve coastal fish species from six families: Blenniidae, Labridae, Pomacentridae, Scaridae, Sparidae and Tripterygiidae, were studied using mitochondrial and nuclear molecular markers. Results were analyzed applying phylogeographic and histórical demography approaches. Species revealed four distinct phylogeographic patterns that were supported by genetic diversity and demographic parameters of the different populations: i) two distinct groups of populations (sometimes considered different species), one including the Mediterranean and the Atlantic coast of western Europe, and another including the Atlantic archipelagos of Canaries, Madeira and Azores (Chromis chromis/ C. limbata, Parabiennius sanguinolentus/ P. parvicornis and the two lineages of Trípterygion delaisi); ii) no appreciable genetic differentiation between any of the populations (Sparisoma cretense, Thalassoma pavo and Diptodus sargus); iií) marked differentiation of the Azorean population (Lipophrys phoíis and Coryphoblennius galeríta) and a clear divergence between Mediterranean and western European íocations as well as Madeira and Canaries (Coryphoblennius galeríta); and iv) one form in the Mediterranean and in the northeastern Atlantic coast (Parabiennius gattorugine) and another one in the Atlantic islands and European coasts (R ruber)...