A5061026342- Avian ecology and behavior
- Marine and fisheries research
- Marine animal studies overview
- Isotope Analysis in Ecology
- Wildlife Ecology and Conservation
- Mercury impact and mitigation studies
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Microplastics and Plastic Pollution
- Species Distribution and Climate Change
- Fish Ecology and Management Studies
- Marine and coastal plant biology
- Climate variability and models
- Cephalopods and Marine Biology
- Bird parasitology and diseases
- Census and Population Estimation
- Wildlife-Road Interactions and Conservation
- Toxic Organic Pollutants Impact
- Coral and Marine Ecosystems Studies
- Marine Bivalve and Aquaculture Studies
- Identification and Quantification in Food
- Environmental DNA in Biodiversity Studies
- Ecology and Vegetation Dynamics Studies
- High-Energy Particle Collisions Research
- Effects and risks of endocrine disrupting chemicals
University of Coimbra
2016-2025
Aquatic Systems (United States)
2025
Research Network (United States)
2025
King's College Hospital
2020
Marine Research Centre
2019
Institute of Marine Research
2006-2018
Fachhochschule Kiel
2012-2017
Kiel University
2010
Abstract The conservation of migratory marine species, including pelagic seabirds, is challenging because their movements span vast distances frequently beyond national jurisdictions. Here, we aim to identify important aggregations seabirds in the North Atlantic inform ongoing regional efforts. Using tracking, phenology, and population data, mapped abundance diversity 21 seabird species. This revealed a major hotspot associated with discrete area subpolar frontal zone, used annually by 2.9–5...
Abstract The incidental capture (bycatch) of seabirds is a global conservation issue and top threat to European species that demands urgent management action. Here, we present the first review seabird bycatch data, considering all fishing gears data collection methods available in region. We calculate numbers per species, family, country marine region assess reliability available. cumulative estimate extracted from this suggests about 195,000 (ranging around 130,000 380,000) are bycaught...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 497:273-284 (2014) - DOI: https://doi.org/10.3354/meps10586 Annual and seasonal consistency in feeding ecology of an opportunistic species, yellow-legged gull Larus michahellis Filipe R. Ceia1,*, Vitor H. Paiva1, Vera Fidalgo1, Lurdes Morais2, Alexandra Baeta1, Paulo Crisóstomo2, Eduardo Mourato2, Stefan...
Given the major ongoing influence of environmental change on oceans, there is a need to understand and predict future distributions marine species in order plan appropriate mitigation conserve vulnerable ecosystems. In this study we use tracking data from seven large seabird Southern Ocean (black‐browed albatross Thalassarche melanophris , grey‐headed T. chrysostoma northern giant petrel Macronectes halli southern M. giganteus Tristan Diomedea dabbenena wandering D. exulans white‐chinned...
Polybrominated diphenyl ethers are persistent disrupters assimilated by organisms, yet little is known about their link to plastic ingestion and health effects. In an experiment, two groups of yellow-legged/lesser black-backed gulls (Larus michahellis/Larus fuscus) were fed plastics with BDE99 assess leaching into brain, preen oil, liver fat tissues evaluate effects on stress parameters. Although most was regurgitated, we observed a clear relation between chemical leaching. exhibited higher...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 398:259-274 (2010) - DOI: https://doi.org/10.3354/meps08319 Foraging plasticity in a pelagic seabird species along marine productivity gradient Vitor H. Paiva1,3,*, Pedro Geraldes2, Iván Ramírez2, Ana Meirinho2, Stefan Garthe3, Jaime A. Ramos1 1IMAR/CMA-Institute of Research, Department Life Sciences,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 477:15-28 (2013) - DOI: https://doi.org/10.3354/meps10180 Effects of environmental variability on different trophic levels North Atlantic food web Vitor H. Paiva1,2,*, Pedro Geraldes3, Marques4, Rula Rodríguez4, Stefan Garthe2, Jaime A. Ramos1 1IMAR/CMA and Environmental Research Centre, Department Life...
Lesser black-backed gulls Larus fuscus are considered to be mainly pelagic. We assessed the importance of different landscape elements (open sea, tidal flats and inland) by comparing marine terrestrial foraging behaviours in lesser breeding along coast southern North Sea. attached GPS data loggers eight incubating birds collected information on diet habitat use. The recorded for 10-19 days allow flight-path reconstruction. foraged both offshore inland areas, but rarely flats. Targets...
Homing studies have provided tantalizing evidence that the remarkable ability of shearwaters ( Procellariiformes ) to pinpoint their breeding colony after crossing vast expanses featureless open ocean can be attributed assembling cognitive maps wind-borne odours but crucially, it has not been tested whether olfactory cues are actually used as a system for navigation. Obtaining statistically important samples wild birds use in experimental approaches is, however, impossible because invasive...
Abstract Aim Anthropogenic activities alter and constrain the structure of marine ecosystems with implications for wide‐ranging vertebrates. In spite environmental importance vast oceanic ecosystems, most conservation efforts mainly focus on neritic areas. To identify relevant areas conservation, we assessed year‐round spatial distribution spatio‐temporal overlap eight truly seabird species gadfly petrels ( Pterodroma spp.) inhabiting Atlantic Ocean. Location Methods Using tracking data...
Sexual segregation in foraging occurs many animal species, resulting the partitioning of resources and reduction competition between males females, yet patterns drivers such are still poorly understood. We studied movements (GPS-tracking), habitat use (habitat modelling) trophic ecology (stable isotope analysis) female male Cory's shearwaters Calonectris borealis during mid chick-rearing period six consecutive breeding seasons (2010-2015). found a clear sexual years greater environmental...
Movements and foraging strategies of marine predators should cope with the hierarchical spatial distribution resources. Therefore, in order to predict at-sea aerial predators, it is crucial understand factors governing trajectory decisions at different scales. Using first passage time (FPT) analysis on precision tracking information (GPS-loggers data) we were able examine strategy Cory's shearwaters Calonectris diomedea detect adoption area-restricted search (ARS), measuring scale duration...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 476:269-284 (2013) - DOI: https://doi.org/10.3354/meps10083 Year-round distribution and habitat preferences of Bugio petrel Iván Ramírez1,*, Vitor H. Paiva2, Dilia Menezes3, Isamberto Silva3, Richard A. Phillips4, Jaime Ramos2, Stefan Garthe5 1SPEA-Portuguese Society for Study Birds, Avenida João Crisostomo...
Abstract Aim Apical pelagic species forage in predictable habitats, and their movements should signal biologically ecologically significant areas of the marine ecosystem. Several countries are now engaged identifying these based on animal tracking, but this is often limited to a few individuals from one breeding population, which may result biased portrayals key habitats. To help identify such foraging areas, we compiled tracking data top predator main colonies Central Macaronesia. Location...
Abstract Moonlight is known to affect the nocturnal behaviour and activity rhythms of many organisms. For instance, predators active at night may take advantage from increased visibility afforded by moon, while prey might regulate their patterns become less detectable. Many species pelagic seabirds attend colony only night, in complete darkness, avoiding approaching nest sites under moonlight. This has been most often interpreted as an antipredator adaptation (‘predation avoidance’...
The conservation status and taxonomy of the three gadfly petrels that breed in Macaronesia is still discussed partly due to scarce information on their spatial ecology. Using geolocator capture-mark-recapture data, we examined phenology, natal philopatry breeding-site fidelity, year-round distribution, habitat usage at-sea activity closely-related Macaronesia: Zino's petrel Pterodroma madeira, Desertas P. deserta Cape Verde feae. All feae remained around breeding area during non-breeding...
Abstract Fisheries produce large quantities of discards, an important resource for scavenging seabirds. However, a policy reform banning which is soon to be implemented within the EU, will impose food shortage upon scavengers, and it still largely unknown how scavengers behave. We studied diet (hard remains), trophic (stable isotope analysis), foraging (individual tracking) ecology two gull species breeding in sympatry: Audouin’s Larus audouinii (AG) yellow-legged michahellis (YLG), South...
Brain-derived neurotrophic factor (BDNF) is essential for neuronal survival, differentiation, and plasticity. In epilepsy, BDNF exhibits a dual role, exerting both antiepileptic pro-epileptic effects. The cleavage of its main receptor, full-length tropomyosin-related kinase B (TrkB-FL), was suggested to occur in status epilepticus (SE) vitro. Moreover, under excitotoxic conditions, TrkB-FL found be cleaved, resulting the formation new intracellular fragment, TrkB-ICD. Thus, we hypothesized...
Abstract Little Terns Sternula albifrons are estuarine birds extensively using increasingly urbanized coastal areas. Given the increased exposure of these ecosystems to anthropogenic activities, it is crucial study ecology this species and interactions with human stressors establish management measures. We collected regurgitates (n = 182) blood samples 48) Terns’ diet, health condition isotopic niche, individually tracked breeding adults 9, during 2021 2022) at two sandy beaches 21 km apart...
This study examines blood mercury (Hg) concentrations in Calonectris sp. shearwaters from three colonies along the Atlantic and Mediterranean coasts of Iberian Peninsula (southwestern Europe), investigating their relationship with foraging ecology through GPS tracking stable isotopes (δ15N δ13C) data during breeding season. Hg levels exhibited a spatial gradient, increasing Ocean (1.8 ± 0.4 μg g-1 dw) towards Sea, Columbretes Islands (NW Mediterranean) showing highest (6.5 2.1 dw)....