First Atlantic Murphy's Petrel, Pterodoma ultima, at St Helena

Phylogenetic relationships of the extinct St Helena petrel, Pterodroma rupinarum Olson, 1975 (Procellariiformes: Procellariidae), based on ancient DNA

Palaeontological studies show that three endemic procellariid seabird species became extinct on the remote island of St Helena in the South Atlantic Ocean. At least one of these, Pterodroma rupinarum Olson, 1975, is likely to have survived until human colonization of the island, although it is known only from subfossil bones. Several species of Pterodroma are distributed across the Atlantic, bu...

Epidemic of poliomyelitis in St. Helena.

Pan-tropical spotted dolphins (Stenella attenuata) and other cetaceans around St Helena in the tropical south-eastern Atlantic

The occurrence, distribution and structure of cetacean communities in the tropical South Atlantic beyond the shelf edge are poorly known with little dedicated research occurring within this region. At 15°58'S 005°43'W, the island of St Helena is one of the few areas of land within this region and the only one that lies in the tropical south-eastern Atlantic. As a result, St Helena offers a uniq...

Helena Macedo

This supplement aims to disseminate results obtained from the fi rst dietary survey carried out in Brazil, in which food records for two non-consecutive days were obtained for each interviewee. The supplement contains six studies which address aspects linked to analyzing the prevalence of consumption of different foods, inadequate intake in different age groups, guidelines for analyzing the sam...

Guilds: Communities in Ultima Online

This paper is concerned with the massively multi-player online role-playing game Ultima Online. Because of the large number of players, the evolution of sub-groups, or guilds, are very common. This document contains a general description of Ultima Online and an analysis of a particular guild. I show that the guild can be classified as a virtual community and discuss the importance of its rules ...