14 documents found, page 1 of 2
Unraveling the dynamics of a ground-dwelling beetle population exposed to quarr...
Eufrázio, Sofia; Oliveira, Amália; Miralto, Otília; Medinas, Denis; Silva, Carmo; Sá, Cátia; Mira, António; Salgueiro, PedroQuarry exploitation and restoration practices are expected to have overarching and contrasting impacts on animal communities. Although many studies describe these impacts, they generally overlook the effects on population dynamics and individual movements.We assessed the impacts of quarry exploitation and restoration activity on population dynamics, individual movement, and habitat use of a sand-dwelling specia...
Effect of vineyard characteristics on the functional diversity of insectivorous...
Lourenço, Rui; Pereira, Pedro; Oliveira, Amália; Ribeiro-Silva, Joana; Figueiredo, Diogo; Rabaça, João; Mira, António; Tiago Marques, JoãoInsectivorous birds have a large potential to provide biocontrol services in vineyards, thus contributing to the sustainability of this agroecosystem. Bird communities are influenced by vineyard management practices and surrounding landscape, which may influence their role as ecosystem service providers. Functional diversity indices are indicators of bird community composition, and thus may reflect potential bi...
Insect pollination services in actively and spontaneously restored quarries con...
Carvalho, Carolina; Oliveira, Amália; Caeiro, Elsa; Miralto, Otilia; Parrinha, Marta; Sampaio, Ana; Silva, Carmo; Mira, António; Salgueiro, PedroEcological restoration has the potential to accelerate the recovery of biodiversity and ecosystem services in degraded ecosystems. However, current research queries whether active restoration is necessary. We evaluated plant-pollinator networks during spring at replicated sites within an actively restored quarry, at abandoned quarries undergoing spontaneous restoration, and within a natural reference area, to c...
Effect of vineyard characteristics on the functional diversity of insectivorous...
Lourenço, Rui; Pereira, Pedro; Oliveira, Amália; Ribeiro-Silva, Joana; Figueiredo, Diogo; Rabaça, João E.; Mira, António; Marques, J. TiagoInsectivorous birds have a large potential to provide biocontrol services in vineyards, thus contributing to the sustainability of this agroecosystem. Bird communities are influenced by vineyard management practices and surrounding landscape, which may influence their role as ecosystem service providers. Functional diversity indices are indicators of bird community composition, and thus may reflect potential bi...
Influência do modo de produção de vinha na abundância e diversidade de macroinv...
Ramos, Isabel Joaquina; Ribeiro, Joana Amaro; Oliveira, Amália; Miralto, Otília; Figueiredo, DiogoNa Europa, a agricultura representa a forma dominante de uso do solo existindo um elevado grau de biodiversidade associada a estes habitats. Assim, os estudos de conservação deveriam focar-se nos habitats agrícolas e na grande perda de biodiversidade existente. A viticultura, um dos setores que mais tem influenciado esta perda, sendo economicamente muito importante, pode ser considerado um ótimo ponto de entrad...
Invertebrate and benthic diatom dynamics in Mediterranean intermittent streams ...
Novais, Maria Helena; Morales, Eduardo Antonio; Penha, Alexandra Marchã; Oliveira, Amália; Souza da Conceição, Eltamara; Morais, Maria ManuelaThe main hypotheses of the present work are to demonstrate that diatom and invertebrate communities develop adaptations to water intermittency, benthic diatoms reflect spatial and temporal gradients, and diatoms in dry biofilm as well as carabids are good ecological quality indicators during dry conditions. To test these hypotheses, macroinvertebrates, diatoms and carabids were sampled in 18 sites (streams) in ...
The influence of management and environmental factors on insect attack on cork ...
Pereira, Pedro F.; Lourenço, Rui; Lopes, Cláudia; Oliveira, Amália; Rabaça, João E.; Pinto-Correia, Teresa; Figueiredo, Diogo; Mira, AntónioThe decline of oak (Quercus spp.) forests is a current trend in Northern Hemisphere and is characterized by a loss in tree vigour and increased mortality. The canopy insects are suspected to have role in this decline, but there is poor knowledge about their incidence in evergreen-oak stands. The main aim of this study is to characterize the incidence of main insect groups affecting branches and leaves of an eve...
Effects of water intermittency on diatom (Bacillariophyta) and invertebrate (aq...
Novais, Maria Helena; Penha, Maria Alexandra; Morales, Eduardo A.; Oliveira, Amália; Bouchez, Agnès; Barthès, Amelie; Usseglio-Polatera, PhilippeMacroinvertebrate and diatom communities were sampled in intermittent streams (i.e. no superficial flow for more than 3 months) of southern Portugal, in spring and end summer 2017 (when carabids were also sampled). The ecological classification of the 18 sampling sites ranged from Moderate to High in spring (flow conditions), according to the Water Framework Directive. During summer, high hydrologic variability...
ESTRUTURA, FUNCIONAMENTO E GESTÃO DE RIOS TEMPORÁRIOS: PROJETO SMIRES Morais
Morais, Maria Manuela; Alves, Maria Helena; Novais, Maria Helena; Oliveira, Amália; Morales, Eduardo A.Os rios temporários são linhas de água que apresentam interrupção do caudal superficial e por vezes secam. Estes sistemas cobrem mais de 50% da rede hidrográfica global, encontrando-se em expansão devido aos efeitos das alterações globais. Os rios temporários são ecossistemas aquáticos-terrestres muito dinâmicos, caracterizados por apresentarem uma elevada biodiversidade. Apesar da sua representatividade global...
Diatoms and ground beetles (Coleoptera) in intermittent and permanent rivers in...
Oliveira, Amália; Novais, Maria Helena; Penha, Alexandra; Morais, ManuelaThe importance of intermittent watercourses is widely recognized, as they represent a great part of the river network worldwide. This is also the case of Portugal, where it is estimated that more than 80% of the territory is drained by intermittent rivers. Given their importance, a study with benthic diatoms and ground beetles (Coleopteran: Carabidae) was carried out to understand their value as bioindicators i...