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Repositório do ISPA Instituto Superior de Psicologia Aplicada (11.386 recursos)

No Repositório do ISPA pode encontrar diversos tipos de documentos, em formato digital, resultantes da produção científica do ISPA designadamente: teses de doutoramento, teses de mestrado, artigos em publicações periódicas nacionais e internacionais, relatórios técnicos, artigos em actas de conferências nacionais e internacionais e capítulos de livros.

UIE-E - Artigos em revistas internacionais

Mostrando recursos 1 - 20 de 326

  1. Reproductive success in the Lusitanian toadfish Halobatrachus didactylus: Influence of male and nest sizes

    Carriço, Rita; Amorim, Maria Clara Pessoa; Fonseca, Paulo Jorge
    Male reproductive success often depends on male attributes and resource quality. Here, we examined male preference for nest size in the Lusitanian toadfish, a nest-guarding fish with parental care.We also investigated the combined effect of male length and nest size in male breeding success. Approximately 80 shelters with five different sizes were placed on an intertidal zone of the Tagus estuary. Nests were checked every fortnight at spring low tides for occupation, nest-holder length, and number of eggs. Males did not select for the larger nests despite their availability but showed size assortative nest choice. Only nest size was a significant predictor of clutch size in...

  2. Vítor C. Almada: 20.04.1950–27.09.2013

    Santos, Manuel Eduardo dos
    Inexistente

  3. Spawning behaviour of a threatened Iberian cyprinid and its implications for conservation

    Santos, Carla Sousa; Robalo, Joana Isabel; Almada, Vítor Carvalho
    This study presents the first ethological description of the reproductive behaviour of the cyprinid Squalius pyrenaicus, endemic to the Iberian Peninsula. The behavioural pattern of this endangered species during the breeding season is non-communal and includes the preparation of a spawning pit (depressions in the substratum) by males, a behaviour not described for Iberian cyprinids so far but already reported for North American cyprinids. The courting behaviour of males displaying in spawning pits has a strong signalling component towards females. Males from this species also showed agonistic behaviours against other males, related with the defence of their spawning pits. A positive association between male dominance and courtship activity is discussed, as well...

  4. Then and now: a brief history of acta ethologica

    McGregor, Peter K.; Oliveira, Rui Filipe
    Inexistente

  5. Evolutionary history and population genetics of a cyprinid fish (Iberochondrostoma olisiponensis) endangered by introgression from a more abundant relative

    Santos, Carla Sousa; Gante, Hugo F.; Cunha, Pedro Proença da; Martins, António Antunes; Arruda, Marco; Alves, Maria Judite
    The use of molecular techniques has shown that hybridization and introgression have significant impacts in evolution, by means of transfer of genetic variation and formation of hybrid species. In this paper we use mitochondrial and nuclear sequence data to investigate the evolutionary history, levels of genetic diversity and population differentiation of a rare and endangered fish species. Our results suggest that a hybrid origin scenario of Chondrostoma olisiponensis is a likely explanation for the shared genetic and morphological traits with Iberochondrostoma and Achondrostoma ? Pseudochondrostoma. The basal positioning of C. olisiponensis alleles in all loci analyzed indicates that hybridization events occurred before differentiation within each of these groups, most likely during Middle–Late Miocene. Originally...

  6. Use of conditioned place preference/avoidance tests to assess affective states in fish

    Millot, Sandie; Cerqueira, Marco; Castanheira, Maria Filipa; Overli, Oyvind; Martins, Catarina I. M.; Oliveira, Rui Filipe
    Animal welfare has been defined as the balance between positive and negative experiences or affective states. Despite the growing evidence of complex cognitive abilities and the expression of affective states such as pain and fear, very little is known about ability to experience memory based affective states in non-mammalian animal models. The goal of this study was to validate conditioned place preference/avoidance (CPP/CPA) tests as a method to assess the affective valence of environmental stimuli in teleost fishes. Physiological and behavioural indicators of affective state were used to characterise the response to a priori appetitive and aversive stimuli in CPP/CPA...

  7. Satellite tracking of sea turtles released after prolonged captivity periods

    Mestre, Frederico; Bragança, Marco P.; Nunes, Antonieta; Santos, Manuel Eduardo dos
    Rehabilitation is an important part of sea turtle conservation, and post-release tracking of the animals is both a way of obtaining information on their movements and behaviour and, at least temporarily, monitoring the success of the rehabilitation process. Two green turtles, Chelonia mydas, and one loggerhead turtle, Caretta caretta, were rehabilitated after long periods in captivity, and their movements followed by satellite tracking after their release near the south of Portugal. Location data were obtained for an average of 688 days after release. All three animals showed a directional movement and the last observed locations coincided with known feeding areas...

  8. Olfactory navigation: Failure to attempt replication of critical experiments keeps controversy alive: Reply to Wallraff

    Phillips, John B. Phillips; Jorge, Paulo
    Inexistente

  9. Do individual seabirds specialize in fisheries’ waste? The case of black-browed albatrosses foraging over the Patagonian Shelf

    Granadeiro, José Pedro; Brickle, Paul; Catry, Paulo
    Fisheries can have profound impacts on the structure and functioning of marine ecosystems and affect seabird populations. For seabirds, impacts can include direct mortality in fishing gear, but fisheries also represent an abundant source of food that may otherwise be inaccessible. Previous studies with seabirds have revealed the occurrence of individual foraging specializations, and therefore in scavenging species some individuals may have a higher propensity to feed on fisheries discharges than the rest of the population. Here we used recently developed techniques (spatio-temporal match of positions) to detect interactions between black-browed albatrosses Thalassarche melanophris and fishing vessels, and also stable isotope analysis of tissues with different turnovers, to investigate long-term...

  10. Vessels’ site fidelity and spatio-temporal distribution of artisanalfisheries before the implementation of a temperate multiple-usemarine protected area

    Costa, Bárbara Horta e; Gonçalves, Leonel; Gonçalves, Emanuel João
    Marine protected areas (MPAs) are increasingly proposed as a fisheries management tool besides theirconservation purposes. When assessing the ecological, economic, and social-cultural impacts of protec-tion, the dynamics of fisheries and fishers reallocation within and around multiple-use MPAs should beanalyzed. Despite this, few studies incorporate the baseline information of fisheries distribution, there-fore compromising an understanding of fishers’ preferences, choices and constrains before losing fishinggrounds through the establishment of zoning and protection measures. To fulfil this gap, here we assessthe spatial and seasonal fishers’ preferences from local artisanal fisheries (nets, traps, jigs and longlines)before the implementation of a MPA management plan (the...

  11. Can human-made saltpans represent an alternative habitat for shorebirds? Implications for a predictable loss of estuarine sediment flats

    Dias, Maria P.; Lecoq, Miguel; Moniz, Filipe; Rabaça, João E.
    Estuarine areas worldwide are under intense pressure due to human activities such as upstream dam building. Shorebirds strongly depend on estuarine intertidal flats during migration and wintering periods and so are particularly vulnerable to such impacts, whose magnitude will depend on the availability of alternative feeding habitats. In this study we analyze if man-made saltpans can represent an alternative habitat for wintering and migrating shorebirds in the Guadiana estuary, a wetland that is already experiencing environmental changes due to the building of the Alqueva reservoir, the largest in Western Europe. We compared the use of mudflats and saltpans as feeding areas by several shorebird species before the construction of the dam. A dataset...

  12. Polar marine biology science in Portugal and Spain: Recent advances and future perspectives

    Xavier, José C.; Barbosa, Andrés; Agustí, Susana; Alonso-Sáez, Laura; Alvito, Pedro; Ameneiro, Julia; Ávila, Conxita; Baeta, Alexandra; Canário, João; Carmona, Raquel; Catry, Paulo; Ceia, Filipe; Clark, Melody S.; Cristobo, Francisco J.; Cruz, Bruno; Duarte, Carlos M.; Figuerola, Blanca; Gili, Josep-Maria; Gonçalves, Ana R.; Gordillo, Francisco J. L.; Granadeiro, José Pedro; Guerreiro, Miguel; Isla, Enrique; Jiménez, Carlos; López-González, Pablo J.; Lourenço, Sílvia; Marques, João C.; Moreira, Elena; Mota, Ana M.; Nogueira, Marta; Núñez-Pons, Laura; Orejas, Covadonga; Paiva, Vitor H.; Palanques, Albert; Pearson, Gareth A.; Pedrós-Alió, Carlos; Peña Cantero, Álvaro L.; Power, Deborah M.; Ramos, Jaime; Rossi, Sergi; Seco, José; Sañé, Elisabet; Serrão, Ester A.; Taboada, Sergi; Tavares, Sílvia; Teixidó, Núria; Vaqué, Dolors; Valente, Tiago; Vázquez, Elsa; Vieira, Rui P.; Viñegla, Benjamin
    Polar marine ecosystems have global ecological and economic importance because of their unique biodiversity and their major role in climate processes and commercial fisheries, among others. Portugal and Spain have been highly active in a wide range of disciplines in marine biology of the Antarctic and the Arctic. The main aim of this paper is to provide a synopsis of some of the results and initiatives undertaken by Portuguese and Spanish polar teams within the field of marine sciences, particularly on benthic and pelagic biodiversity (species diversity and abundance, including microbial, molecular, physiological and chemical mechanisms in polar organisms), conservation...

  13. How consumption and fragmentation of macrophytes by the invasive crayfish Procambarus clarkii shape the macrophyte communities of temporary ponds

    Carreira, Bruno M.; Dias, Maria P.; Rebelo, Rui
    Crayfish are major herbivores in freshwaters, and their activity may change invaded freshwater ecosystems. Macrophyte removal by crayfish results from consumption and fragmentation of plant material and may depend upon the palatability of each species. We studied the impact of Procambarus clarkii on the macrophyte community of Mediterranean temporary ponds, testing in laboratory if consumption and fragmentation of five macrophyte species were correlated in palatability tests and in a preference test. We performed an experiment in a natural pond, where we introduced crayfish and estimated its effects on macrophyte biomass, number of rooted stalks and number of floating cut stalks. P. clarkii consumed preferably Juncus heterophyllus in both tests and avoided Carex divisa and Ranunculus...

  14. A global ocean observing system framework for sustainable development

    Malone, Thomas C.; DiGiacomo, Paul M.; Gonçalves, Emanuel João; Knap, Anthony H.; Talaue-McManus, Liana; Mora, Stephen de
    Sustainable development depends on maintaining ecosystem services which are concentrated in coastal marine and estuarine ecosystems. Analyses of the science needed to manage human uses of ecosystem services have concentrated on terrestrial ecosystems. Our focus is on the provision of multidisciplinary data needed to inform adaptive, ecosystem-based approaches (EBAs) for maintaining coastal ecosystem services based on comparative ecosystem analyses. Key indicators of pressures on coastal ecosystems, ecosystem states and the impacts of changes in states on services are identified for monitoring and analysis at a global coastal network of sentinel sites nested in the ocean-climate observing system. Biodiversity is targeted...

  15. Seasonality of microphytobenthos revealed by remote-sensing in a south european estuary

    Brito, Ana C.; Benyoucef, Ismaїl; Jesus, Bruno; Brotas, Vanda; Gernez, Pierre; Mendes, Carlos Rafael; Launeau, Patrick; Dias, Maria P.; Barillé, Laurent
    The spatio-temporal variation of microphytobenthos (MPB) at the scale of a large estuary (Tagus estuary, Portugal) was studied using a combination of field and satellite remot esensing data during 2003.This is the first attempt to use remote sensing to study MPB in an ecosystem with a Mediterranean -like climate. Satellite pour l'Observation de la Terre(SPOT) and Medium Resolution Imaging Spectrometer(MERIS) images were used to map benthic microalgae through the application of a Normalized Difference Vegetation index (NDVI).A significant relationship between in-situ benthic chlorophyll a measurements and SPOT NDVI values was used to derive a map for biomass spatial distribution. At the scale of the whole intertidal area,...

  16. Development of vocalization, auditory sensitivity and acoustic communication in the Lusitanian toadfish Halobatrachus didactylus

    Vasconcelos, Raquel Ornelas; Ladich, Friedrich
    The ontogenetic development of acoustic communication has so far only been investigated in one fish species. In order to determine whether detectability of conspecific sounds changes during growth in a species with limited hearing abilities (generalist), we investigated the development of auditory sensitivity and agonistic vocalizations in the Lusitanian toadfish Halobatrachus didactylus. Agonistic grunts were recorded, their sound pressure levels determined, and auditory sensitivities measured in five different size groups ranging from 3 to 32·cm standard length. Hearing thresholds were obtained using the auditory evoked potentials (AEP) recording technique. Dominant frequency, sound duration and number of pulses decreased, whereas pulse period and sound level increased with...

  17. Effects of ship noise on the detectability of communication signals in the Lusitanian toadfish

    Vasconcelos, Raquel Ornelas; Amorim, Maria Clara Pessoa; Ladich, Friedrich
    Underwater noise pollution is an increasing environmental problem which might affect communication, behaviour, fitness and consequently species’ survival. The most common anthropogenic noises in aquatic habitats derive from shipping. In the present study we investigated the implications of noise pollution from a ship on the sound detectability, namely of conspecific vocalizations in the Lusitanian toadfish, Halobatrachus didactylus. Ambient and ferry-boat noises were recorded in the Tagus River estuary (Portugal), as well as toadfish sounds, and their sound pressure levels determined. Hearing sensitivities were measured under quiet lab conditions and in the presence of these masking noises at levels encountered in the field, using the auditory evoked potentials (AEP) recording technique. The Lusitanian toadfish is a...

  18. Unravelling migratory connectivity in marine turtles using multiple methods

    Godley, Brendan J.; Barbosa, Castro; Bruford, Michael; Broderick, Annette C.; Catry, Paulo; Coyne, Michael S.; Formia, Angela; Hays, Graeme C; Witt, Matthew J.
    1. Comprehensive knowledge of the fundamental spatial ecology of marine species is critical to allow the identification of key habitats and the likely sources of anthropogenic threats, thus informing effective conservation strategies. 2. Research on migratory marine vertebrates has lagged behind many similar terrestrial animal groups, but studies using electronic tagging systems and molecular techniques offer great insights. 3. Marine turtles have complex life history patterns, spanning wide spatio-temporal scales. As a result of this multidimensional complexity, and despite extensive effort, there are no populations for which a truly holistic understanding of the spatial aspects of the life history has been attained. There is a particular lack of...

  19. Unravelling migratory connectivity in marine turtles using multiple methods

    Godley, Brendan John; Barbosa, Castro; Bruford, Michael; Broderick, Annette C.; Catry, Paulo; Coyne, Michael S.; Formia, Angela; Hays, Graeme C; Witt, Matthew J.
    1. Comprehensive knowledge of the fundamental spatial ecology of marine species is critical to allow the identification of key habitats and the likely sources of anthropogenic threats, thus informing effective conservation strategies. 2. Research on migratory marine vertebrates has lagged behind many similar terrestrial animal groups, but studies using electronic tagging systems and molecular techniques offer great insights. 3. Marine turtles have complex life history patterns, spanning wide spatio-temporal scales. As a result of this multidimensional complexity, and despite extensive effort, there are no populations for which a truly holistic understanding of the spatial aspects of the life history has been attained. There is a particular lack of...

  20. Brood-guarding duration in black-browed albatrosses Thalassarche melanophris: temporal, geographical and individual variation

    Catry, Paulo; Phillips, Richard A.; Forster, Isaac P.; Matias, Rafael; Lecoq, Miguel; Granadeiro, José Pedro; Strange, Ian J.
    In birds, the period spent brooding or guarding young chicks is highly variable, but such variation has seldom been studied. Previous single-year studies of Antarctic petrels Thalassoica antarctica and grey-headed albatrosses Thalassarche chrysostoma revealed a pronounced seasonal decline in brood-guarding duration and gave rise to the ‘synchronisation hypothesis’, which suggests that some of the variation in the length of the brood-guarding stage is related to predictable seasonal changes in the risk of chick predation. We tested the predictions of this and three other hypotheses in a two-site, four-year study of the black-browed albatross T. melanophris. The existence of a pronounced seasonal decline in broodguarding duration was...

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