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

Xavier, José C.; Barbosa, Andrés; Agustí, Susana; Alonso-Sáez, Laura; Alvito, Pedro; Ameneiro, Julia; Ávila, Conxita; Baeta, Alexandra; Canário, João

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 undertak...


Use the backbone of your samples: fish vertebrae reduces biases associated with...

Alonso, Hany; Granadeiro, José P.; Ramos, J. A.; Catry, Paulo

A literature review showed that most recent conventional dietary studies of Procellariiformes have used otoliths alone to identify fish prey. Using data from a dietary study of Cory’s Shearwaters Calonectris diomedea, based on 673 regurgitates from adult birds, we quantitatively compared the contribution of otoliths and vertebrae for prey identification and quantification. By using otoliths alone, the importanc...


Competition among european robins Erithacus rubecula in the winter quarters: Se...

Campos, Ana R.; Catry, Paulo; Ramos, Jaime; Robalo, Joana Isabel

Competition for resources by individuals of different sexes, ages, body sizes or geographical originsmay have varied implications, from demography to the evolution ofmigratory systems. European robins Erithacus rubecula display segregation by habitat in relation to sex, age, body size and geographic origin in the winter quarters. Here we report on an experiment to investigate the existence of asymmetries in the...


Albatrosses following fishing vessels: How badly hooked are they on an easy meal?

Granadeiro, José Pedro; Phillips, Richard A.; Brickle, Paul; Catry, Paulo

Fisheries have major impacts on seabirds, both by changing food availability and by causing direct mortality of birds during trawling and longline setting. However, little is known about the nature and the spatial-temporal extent of the interactions between individual birds and vessels. By studying a system in which we had fine-scale data on bird movements and activity, and near real-time information on vessel ...


Do diurnal migrants follow the Guadiana River when crossing dry sectors of SW I...

Catry, Paulo; Campos, Ana; Miravent, Vanda; Rabaça, João E.

Little is known on the importance of water courses as migratory corridors. Here, we present the results of an investigation on the movements of diurnal migrants associated with the Guadiana River when crossing dry and inhospitable regions of southern Iberia. Direct observations were carried out along the river and at control sites away from it, in late August-November 2006. The number of birds seen was extremel...


The white-chinned petrel procellaria aequinoctialis population of the Falkland ...

Reid, Tim A.; Lecoq, Miguel; Catry, Paulo

A survey of all known colonies of the White-chinned Petrel Procellaria aequinoctialis within the Falkland Islands was conducted during the austral summers of 2004/05 and 2005/06. From these surveys, a minimum population of 55 pairs was observed. Most of these were on Kidney and New islands, with a very small colony on Bottom Island in Port William. Although evidence of a decrease in the size of the population o...


Sustained fast travel by a gray-headed albatross (Thalassarche chrysostoma) rid...

Catry, Paulo; Phillips, Richard A.; Croxall, John P.

A Gray-headed Albatross (Thalassarche chrysostoma) was recorded traveling, in the course of a foraging trip, at a minimum average ground speed of >110 km h–1 for ~9 h with virtually no rest. A er taking into account the sinuosity of albatross fl ight, actual mean ground speed was predicted to be ≥127 km h–1, achieved in association with high tailwinds during an Antarctic storm. Despite its high speed and the s...


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Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia