Recursos de colección

Repositorio da Universidade dos Açores (8.657 recursos)

O Repositório Institucional da Universidade dos Açores desenvolvido no âmbito do projecto RCAAP.

FCT - Faculdade de Ciências e Tecnologia

Mostrando recursos 1 - 20 de 123

  1. Seabird mortality induced by land-based artificial lights

    Rodríguez, Airam; Holmes, Nick D.; Ryan, Peter G.; Wilson, Kerry-Jayne; Faulquier, Lucie; Murillo, Yovana; Raine, André F.; Penniman, Jay F.; Neves, Verónica C.; Rodríguez, Beneharo; Negro, Juan J.; Chiaradia, André; Dann, Peter; Anderson, Tracy; Metzger, Benjamin; Shirai, Masaki; Deppe, Lorna; Wheeler, Jennifer; Hodum, Peter; Gouveia, Cátia; Carmo, Vanda; Carreira, Gilberto P.; Delgado-Alburqueque, Luis; Guerra-Correa, Carlos; Couzi, François-Xavier; Travers, Marc; Corre, Matthieu Le
    Artificial lights at night cause high mortality of seabirds, one of the most endangered groups of birds globally. Fledglings of burrow-nesting seabirds, and to a lesser extent adults, are attracted to and then grounded (i.e., forced to land) by lights when they fly at night. We reviewed the current state of knowledge of seabird attraction to light to identify information gaps and propose measures to address the problem. Although species in families such as Alcidae and Anatidae can be grounded by artificial light, the most affected seabirds are petrels and shearwaters (Procellariiformes). At least 56 species of Procellariiformes, more than...

  2. Seabird mortality induced by land-based artificial lights

    Rodríguez, Airam; Holmes, Nick D.; Ryan, Peter G.; Wilson, Kerry-Jayne; Faulquier, Lucie; Murillo, Yovana; Raine, André F.; Penniman, Jay F.; Neves, Verónica C.; Rodríguez, Beneharo; Negro, Juan J.; Chiaradia, André; Dann, Peter; Anderson, Tracy; Metzger, Benjamin; Shirai, Masaki; Deppe, Lorna; Wheeler, Jennifer; Hodum, Peter; Gouveia, Cátia; Carmo, Vanda; Carreira, Gilberto P.; Delgado-Alburqueque, Luis; Guerra-Correa, Carlos; Couzi, François-Xavier; Travers, Marc; Corre, Matthieu Le
    Artificial lights at night cause high mortality of seabirds, one of the most endangered groups of birds globally. Fledglings of burrow-nesting seabirds, and to a lesser extent adults, are attracted to and then grounded (i.e., forced to land) by lights when they fly at night. We reviewed the current state of knowledge of seabird attraction to light to identify information gaps and propose measures to address the problem. Although species in families such as Alcidae and Anatidae can be grounded by artificial light, the most affected seabirds are petrels and shearwaters (Procellariiformes). At least 56 species of Procellariiformes, more than...

  3. Depredation of Monteiro's Storm-petrel (Hydrobates monteiroi) Chicks by Madeiran Wall Lizard (Lacerta dugesii)

    Neves, Verónica C.; Nava, Cristina; Monteiro, Eva; Monteiro, Paulo R.; Bried, Joël
    Monteiro’s Storm-petrel (Hydrobates monteiroi) is a small seabird endemic to the Azores archipelago, where it is known to breed only on two mammal-free islets. Total breeding numbers are between 250 and 300 pairs. During the 2015 breeding season on Praia Islet, six Madeiran wall lizards (Lacerta dugesii) were observed depredating a Monteiro’s Storm-petrel chick about to fledge. In August 2015, a freshly killed chick without its head and four larger dead chicks were found. Eight other chicks had disappeared from their nests since our previous visit in early July. In 2016, there was further evidence of suspected lizard depredation. Three...

  4. Depredation of Monteiro's Storm-petrel (Hydrobates monteiroi) Chicks by Madeiran Wall Lizard (Lacerta dugesii)

    Neves, Verónica C.; Nava, Cristina; Monteiro, Eva; Monteiro, Paulo R.; Bried, Joël
    Monteiro’s Storm-petrel (Hydrobates monteiroi) is a small seabird endemic to the Azores archipelago, where it is known to breed only on two mammal-free islets. Total breeding numbers are between 250 and 300 pairs. During the 2015 breeding season on Praia Islet, six Madeiran wall lizards (Lacerta dugesii) were observed depredating a Monteiro’s Storm-petrel chick about to fledge. In August 2015, a freshly killed chick without its head and four larger dead chicks were found. Eight other chicks had disappeared from their nests since our previous visit in early July. In 2016, there was further evidence of suspected lizard depredation. Three...

  5. Reduced population size does not affect the mating strategy of a vulnerable and endemic seabird

    Nava, Cristina; Neves, Verónica C.; Andris, Malvina; Dubois, Marie-Pierre; Jarne, Philippe; Bolton, Mark; Bried, Joël
    Bottleneck episodes may occur in small and isolated animal populations, which may result in decreased genetic diversity and increased inbreeding, but also in mating strategy adjustment. This was evaluated in the vulnerable and socially monogamous Monteiro's Storm-petrel Hydrobates monteiroi, a seabird endemic to the Azores archipelago which has suffered a dramatic population decline since the XVth century. To do this, we conducted a genetic study (18 microsatellite markers) in the population from Praia islet, which has been monitored over 16 years. We found no evidence that a genetic bottleneck was associated with this demographic decline. Monteiro's Storm-petrels paired randomly with respect...

  6. Testing the usefulness of hydrogen and compound-specific stable isotope analyses in seabird feathers : a case study in two sympatric Antarctic storm-petrels

    Quillfeldt, Petra; Thorn, Simon; Richter, Benjamin; Nabte, Marcela; Coria, Nestor; Masello, Juan F.; Massaro, Melanie; Neves, Verónica C.; Libertelli, Marcela
    Nitrogen and carbon stable isotopes provide tools to investigate ecological segregation, prey choice and spatial distribution in seabirds. However, the interpretation of stable isotopes is frequently hampered by a lack of isotopic baseline data. In this study, two techniques proposed to overcome such shortages were tested: compound-specific isotope analyses of amino acids (AA-CSIA) and the analysis of hydrogen stable isotope ratios (HSIA). Feathers of two sympatric storm-petrels were compared. The two species, Black-bellied storm-petrels Fregetta tropicaand Wilson’s storm-petrels Oceanites oceanicus, moult in oceanic waters and differ in diet composition. For HSIA, a range of species with broad diet and non-breeding...

  7. Black rat Rattus rattus eradication by trapping allows recovery of breeding roseate tern Sterna dougallii and common tern S.hirundo populations on Feno Islet, the Azores, Portugal

    Amaral, João J. S.; Almeida, Sérgio; Sequeira, Maria; Neves, Verónica C.
    Mass trapping successfully achieved elimination of black rat Rattus rattus on Feno islet (1.6 ha), Terceira island (Azores archipelago), thus enabling roseate terns Sterna dougallii and common terns Sterna hirundo to recolonize the islet. Rats were first detected on Feno in 2003, when tern breeding-numbers had decreased dramatically. During 2005 no terns bred on the islet and in 2006 fewer than five common tern pairs attempted to nest. Rat eradication was initiated in September 2006. The last rats were captured in March 2007. Monitoring conducted in September 2007, and May and September 2008 indicated that rats had not recolonized. Common...

  8. Biomonitoring soil health in agricultural volcanic areas : an integrative approach

    Parelho, Carolina Paula Furtado de Medeiros
    Tese de Doutoramento, Biologia, 13 de Outubro de 2017, Universidade dos Açores.

  9. Biomonitoring soil health in agricultural volcanic areas : an integrative approach

    Parelho, Carolina Paula Furtado de Medeiros
    Tese de Doutoramento, Biologia, 13 de Outubro de 2017, Universidade dos Açores.

  10. Epidemio-vigilância da fasciolose nos bovinos leiteiros da Ilha de São Miguel : Açores

    Barbosa, Ricardo Borges
    Dissertação de Mestrado, Ciências Biomédicas, 4 de outubro de 2017, Universidade dos Açores.

  11. Perceções acerca de evento desportivo (2009 versus 2015): Duas tipologias de variáveis

    Sousa, Áurea; Batista, Maria da Graça Câmara; Pinheiro, Sérgio; Silva, Osvaldo
    24th APDR Congress “Intellectual Capital and Regional Development: New landscapes and challenges for space planning”. July 6-7, Covilhã (Portugal).

  12. Perceções acerca de evento desportivo (2009 versus 2015): Duas tipologias de variáveis

    Sousa, Áurea; Batista, Maria da Graça Câmara; Pinheiro, Sérgio; Silva, Osvaldo
    24th APDR Congress “Intellectual Capital and Regional Development: New landscapes and challenges for space planning”. July 6-7, Covilhã (Portugal).

  13. Inserção profissional de jovens açorianos : O papel dos contactos pessoais no acesso ao mercado de trabalho

    Silva, Osvaldo; Palos, Ana Cristina Pires; Diogo, Fernando
    24th APDR Congress “Intellectual Capital and Regional Development: New landscapes and challenges for space planning”. July 6-7, Covilhã (Portugal).

  14. Inserção profissional de jovens açorianos : O papel dos contactos pessoais no acesso ao mercado de trabalho

    Silva, Osvaldo; Palos, Ana Cristina Pires; Diogo, Fernando
    24th APDR Congress “Intellectual Capital and Regional Development: New landscapes and challenges for space planning”. July 6-7, Covilhã (Portugal).

  15. Total and attuned multiple autonomy support and the social development of early adolescents

    Simões, Francisco Alexandre Melo; Calheiros, Maria Manuela de Amorim; Silva, Madalena Moutinho Alarcão; Sousa, Áurea; Silva, Osvaldo
    The effects of Multiple Autonomy Support (MAS), meaning the autonomy support provided by two or more sources, is an overlooked topic in social development literature. The aim of this study is to understand how two types of MAS, Total Multiple Autonomy Support (TMAS) and Multiple Autonomy Support Attunement (MASA), are related to early adolescents’ social development indicators (prosocial behavior, self-regulation, antisocial behavior, alcohol use, and 1-year substance use intention). TMAS pertains to the general amount of autonomy support perceived by a MAS recipient, irrespectively of each provider’s contribution to that score. MASA refers to the interindividual patterns of perceived coordination...

  16. Total and attuned multiple autonomy support and the social development of early adolescents

    Simões, Francisco Alexandre Melo; Calheiros, Maria Manuela de Amorim; Silva, Madalena Moutinho Alarcão; Sousa, Áurea; Silva, Osvaldo
    The effects of Multiple Autonomy Support (MAS), meaning the autonomy support provided by two or more sources, is an overlooked topic in social development literature. The aim of this study is to understand how two types of MAS, Total Multiple Autonomy Support (TMAS) and Multiple Autonomy Support Attunement (MASA), are related to early adolescents’ social development indicators (prosocial behavior, self-regulation, antisocial behavior, alcohol use, and 1-year substance use intention). TMAS pertains to the general amount of autonomy support perceived by a MAS recipient, irrespectively of each provider’s contribution to that score. MASA refers to the interindividual patterns of perceived coordination...

  17. Análise dos perfis de consumo de cannabis pelos adolescentes de Ponta Delgada

    Sousa, Áurea; Pereira, Hélder Rocha; Raposo, Sara; Silva, Osvaldo; Bacelar-Nicolau, Helena
    A cannabis é a droga ilícita mais produzida e consumida na Europa e, embora seja uma “droga leve”, é reconhecido o seu impacto nas alterações de memória, nas sensações e nos comportamentos. Apresentam-se as principais conclusões obtidas, com base num questionário e em métodos de Análise de Dados (do univariado ao multivariado), com o objetivo de estimar a prevalência e determinar os perfis de consumo de cannabis por parte dos estudantes do Ensino Secundário do concelho de Ponta Delgada (Açores).

  18. Análise dos perfis de consumo de cannabis pelos adolescentes de Ponta Delgada

    Sousa, Áurea; Pereira, Hélder Rocha; Raposo, Sara; Silva, Osvaldo; Bacelar-Nicolau, Helena
    A cannabis é a droga ilícita mais produzida e consumida na Europa e, embora seja uma “droga leve”, é reconhecido o seu impacto nas alterações de memória, nas sensações e nos comportamentos. Apresentam-se as principais conclusões obtidas, com base num questionário e em métodos de Análise de Dados (do univariado ao multivariado), com o objetivo de estimar a prevalência e determinar os perfis de consumo de cannabis por parte dos estudantes do Ensino Secundário do concelho de Ponta Delgada (Açores).

  19. Modeling adult emergence and fecundity of factitious hosts under different food sources supports massive egg production management

    Tavares, João; Silva, Luís; Oliveira, Luísa
    COPYRIGHT: © Cambridge University Press 2017

  20. Modeling adult emergence and fecundity of factitious hosts under different food sources supports massive egg production management

    Tavares, João; Silva, Luís; Oliveira, Luísa
    COPYRIGHT: © Cambridge University Press 2017

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