The Beck’s Petrel Pseudobulweria beckii is a ‘Critically Endangered’ seabird whose breeding sites remain unknown. Historic observations suggest the species’ distribution is concentrated in the Bismarck Archipelago and particularly southern New Ireland. Over the course of two research expeditions in 2016 and 2017 we used on-land and at-sea observations, local interviews and satellite telemetry to understand the distribution of the species, its at-sea movements and potential breeding locations. Land-based and at-sea observations indicated that the area of Silur Bay in southern New Ireland was a significant site for Beck’s Petrel with numbers of birds increasing near shore prior to dusk and birds observed in spotlights over land. A local population is estimated to be in the low thousands. In 2017 a single Beck’s was captured at sea, fitted with a satellite transmitter and tracked for eight months. This bird maintained a core distribution off the south-east coast of New Ireland and north of Bougainville for 122 days. During the tracking period, the bird was located over land at night seven times; predominantly over southern New Ireland, where the signal was also lost for extended periods suggesting occupancy of an underground burrow. In August the bird migrated 1,400 km to a core pelagic habitat north of West Papua before the signal was eventually lost. Our combination of land- and sea-based observations and analysis of behaviour from satellite tracking supports the conclusion that a breeding site for Beck’s Petrel lies in the inland mountains of southern New Ireland and most likely in the high-altitude zone (> 2000 m) of the Hans Meyer Range. Further investigations are required to determine the exact location of breeding colonies in the mountains of southern New Ireland and the importance of a potential west Papuan non-breeding pelagic habitat for the species.

The foreign language vocabulary learning research literature often attributes strong mnemonic potency to the cognitive processing of meaning when learning words. Routinely cited as support for this idea are experiments by Craik and Tulving (C&T) demonstrating superior recognition and recall of studied words following semantic tasks (“deep” encoding) compared to structure-related tasks (“shallow” encoding). However, participants in C&T were not language learners but native speakers of English studying known English nouns. These experiments have never been directly replicated using nonnatives to establish the relevance of the findings to nonnatives and learners. The present study replicated C&T Experiment 5, comparing effects of shallow and deep encoding tasks on subsequent recognition of target words by native and nonnative speakers of English with equivalent short-term memory function. The results showed depth effects similar to C&T for all participants, indicating that C&T's results do generalize to less proficient speakers of the target language. It is crucial, however, that nonnative speakers of English benefited less from semantic encoding than native speakers, suggesting an effect of preexisting knowledge representations on mnemonic effects derived from semantic processing, and hence, a limit to the relevance of C&T for learners. Results are discussed in terms of the constructs of the mental lexicon, expert knowledge, distinctiveness and levels of processing in memory research and language learning.

There were eight occurrences of an incorrect spelling of the adjectival term language-learning as language-leaning in the original article (Bird, 2010). These typographical errors occurred in the first few pages only, which are reprinted herein. We regret these errors and any problems they may have caused.

A longitudinal study compared the effects of distributed and massed practice schedules on the learning of second language English syntax. Participants were taught distinctions in the tense and aspect systems of English at short and long practice intervals. They were then tested at short and long intervals. The results showed that distributed practice led to superior test scores on the long-term tests, indicating that the learning of second language syntax can benefit from distributed practice in a manner very similar to that reported for other skills and information types in the experimental psychology literature. Implications for intensive language-leaning programs and syllabus design in general are discussed.

The substantial and increasing number of older Australian people from culturally diverse backgrounds justifies the investigation and inclusion of their experiences in ageing research. Few empirical studies have addressed culturally diverse issues in the older population, however, in part because of the particular challenges in recruiting and retaining people from different cultural backgrounds. This article reflects on a research team's experience of recruiting participants from seven cultural groups into a study that sought to explore the links between physical activity and the built environment. Three key issues for recruiting and retaining participants from culturally diverse backgrounds were identified: having access to key local informants; the central role of paid and trained bilingual interviewers; and supporting the research partners in recruitment activities. Furthermore, it appeared that a ‘one size fits all’ approach was not appropriate and that a flexible recruitment strategy may be required to ensure successful recruitment from all cultural groups. The differences observed in this study relating to recruitment and retention rates may be more dependent on the skills and characteristics of those responsible for the recruitment and interviewing, rather than the specific cultural group itself. Older people from some cultural backgrounds may be less likely to respond to traditional recruitment methods and researchers need to be more assiduous and strategic to improve participation rates in research.

Huon pine is endemic to Tasmania. It has well-defined annual rings, may live for over 2000 years, and is particularly resistant to decay. Celery-top pine has similar characteristics and may live for 800 years. As part of a multi-disciplinary study of these trees and their habitat, a simple wood pretreatment method for isotope analysis is described. The solvent-acid-alkali-acid sequence yields a value of Δ14C = −16 ± 6‰ for AD 1941–45 Huon pine heartwood; Δ14C for extracts containing various proportions of post-AD 1955 carbon are also presented. Δ14C measurements on super-canopy and sub-canopy leaves from Celery-top pines are compared and used to place an upper limit of 10% on the amount of sub-canopy CO2 assimilated by sapling leaves, originating from decaying litter-mass. 14C ages from well-preserved logs illustrate the potential for a continuous Holocene chronology from 7400 years BP to the present. A 12,000-year-old Celery-top log has also been found.