Project/scholarship details


  • Funder

    FCT - Fundação para a Ciência e a Tecnologia, I.P.

  • Funder's country

    Portugal

  • Funding program

    3599-PPCDT

  • Funding amount

    124,250.00 €

  • Start date

    Thu Mar 01 00:00:00 WET 2012

  • End date

    Tue Jun 30 00:00:00 WEST 2015

  • Date awarded

    Wed Dec 07 00:00:00 WET 2011

Documents


Wanderer of the deepest seas : Migratory behaviour and distribution of the high...

Dias, Maria P.; Alho, Maria; Granadeiro, José Pedro; Catry, Paulo

Small-sized nocturnal Procellariiformes are abundant predators in oceanic areas worldwide and are thought to play an important role in many marine food webs as consumers of superabundant mesopelagic prey. However, the spatial ecology and foraging behaviour of the great majority of these species remain largely unknown. We studied the non-breeding distribution and at-sea activity of a migratory small-sized Procel...


Temporal and age-related dietary variations in a large population of yellow-leg...

Alonso, Hany Rafael de Drummond Ludovice Garcia; Almeida, Ana Pereira; Granadeiro, José Pedro; Catry, Paulo

There was an extraordinary increase in the numbers of European gulls during the twentieth century which has been linked to higher availability of food derived from human activities. At Berlenga island (Portugal), the population of yellow-legged gulls Larus michahellis increased from 2600 individuals to a peak of 44,698 gulls (1974–1994), after which control measures have been put in place. Despite the managemen...


Searching for a breeding population of Swinhoe’s Storm-petrel at Selvagem Grand...

Silva, Mónica C.; Matias, Rafael; Ferreira, Vânia; Catry, Paulo; Granadeiro, José Pedro

Long-distance dispersal plays a critical role in population dynamics, particularly in species that occupy fragmented habitats, but it is seldom detected and investigated. The pelagic seabird Swinhoe's Storm-petrel, Oceanodroma monorhis, breeds exclusively in the NW Pacific. Individuals have been regularly observed in the Atlantic Ocean since the 1980s, but breeding has never been confirmed. In this study, we se...


Brood-guarding behaviour in Bulwer's Petrel (Bulweria bulwerii)at two East Atla...

Pinto, Maria Gomes Ribeiro Teixeira; Catry, Teresa; Pedro, Patrícia I.; Gatt, Marie Claire; Dias, Maria P.

We characterized the brood-guarding behaviour of the Bulwer’s Petrel Bulweria bulwerii at two Atlantic colonies. Our results suggest that predation avoidance might be a major factor driving broodguarding duration on this species.


Sex and migratory strategy influence corticosterone levels in winter-grown feat...

Pérez, Cristóbal; Granadeiro, José Pedro; Dias, Maria P.; Catry, Paulo

To overcome unpredictable stressful transitory events, animals trigger an allostatic response involving the hypothalamic-pituitary-adrenal cortex. This hormonal response, which involves the release of glucocorticoids which in turn mediate between the main physiological mechanisms that regulate the energetic demands and resource allocation trade-off with behavioural responses to environmental perturbations and m...


Distribution and at-sea activity of a nocturnal seabird, the Bulwer's petrel Bu...

Dias, Maria P.; Romero, Joana; Granadeiro, José Pedro; Catry, Teresa; Pollet, Ingrid L.; Catry, Paulo

Bulwer'spetrelsarenocturnalseabirdsthatmostlypreyonmesopelagicfauna.Asaerialforagersand shallowdivers,theirfeedingopportunitiesarelimitedbynear-surfaceavailabilityoftheirprey,whichis highlyvariablebothtemporally(reflectingdiurnalandlunarcycles)andspatially.Herewestudiedhow Bulwer'spetrelscopewiththeseconstraintsbyanalysingtheirat-seadistributionandactivityduringthe incubationperiod.Wetrackedthemovementsof20bird...


Niche segregation between immature and adult seabirds: Does progressive maturat...

Campioni, Letizia; Granadeiro, José Pedro; Catry, Paulo

In long-lived species with slow maturation, prebreeders often represent a large percentage of the individuals alive at any moment, but their ecology is still understudied. Recent studies have found prebreeding seabirds to differ in their isotopic (and trophic) niche from adult breeders attending the same nesting colonies. These differences have been hypothesized to be linked to the less-developed foraging perfo...


Albatrosses bathe before departing on a foraging trip: implications for risk as...

Granadeiro, José Pedro; Campioni, Letizia; Catry, Paulo

Tracking studies of seabirds have generally focused in identifying areas used for foraging, in the hope of highlighting regions of energy transfer which may be important for seabird and general ecosystem conservation and special management. However, some sea areas may serve functions other than providing nutritional resources, which may be equally relevant, particularly if used by large numbers of individuals. ...


The diet of a nocturnal pelagic predator, the Bulwer’s petrel, across the lunar...

Waap, Silke; Symondson, William O. C.; Granadeiro, José Pedro; Alonso, Hany Rafael de Drummond Ludovice Garcia; Gonçalves, Catarina Serra

The lunar cycle is believed to strongly influence the vertical distribution of many oceanic taxa, with implications for the foraging behaviour of nocturnal marine predators. Most studies to date testing lunar effects on foraging have focused on predator activity at-sea, with some birds and marine mammals demonstrating contrasting behavioural patterns, depending on the lunar-phase. However, to date no study has ...

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