title: Radiocarbon and linguistic dates for occupation of the South Wellesley Islands, Northern Australia

authors: Ulm, Sean

subjects: radiocarbon dates

abstract: Radiocarbon dates from three Kaiadilt Aboriginal sites on the South Wellesley Islands, southern Gulf of Carpentaria, demonstrate occupation dating to c.1600 years ago. These results are at odds with published linguistic models for colonisation of the South Wellesley archipelago suggesting initial occupation in the last 1000 years, but are consonant with archaeological evidence for post-4200 BP occupation of islands across northern Australia, particularly in the last 2000 years.

text: Radiocarbon and linguistic dates for occupation of the South Wellesley Islands, Northern Australia Radiocarbon dates from three Kaiadilt Aboriginal sites on the South Wellesley Islands, southern Gulf of Carpentaria, demonstrate occupation dating to c.1600 years ago. These results are at odds with published linguistic models for colonisation of the South Wellesley archipelago suggesting initial occupation in the last 1000 years, but are consonant with archaeological evidence for post-4200 BP occupation of islands across northern Australia, particularly in the last 2000 years.

year: 2010

title: Observations of alongshore variability of swash motions on an intermediate beach

authors: Guedes, Rafael Marcondes Carvalho

subjects: Alongshore variability

abstract: Alongshore variability in swash motions - shoreline oscillations about the mean water level on the beach face - were investigated using video images and a high-resolution morphology survey on an intermediate beach. Under mild, swell-dominated offshore wave conditions, alongshore variation of up to 78$ in significant runup height . Rs (defined as 4 times the standard deviation of the swash time series) was observed. This variation was predominantly driven by energy at the incident (>0.05. Hz) frequencies (where most of the swash energy was observed), and, consistent with previous observations, was mainly controlled by changes in the slope of the beach face (measured at the mean swash location). However, alongshore patterning in wave breaking over the sandbar caused variation in the degree of wave dissipation along the beach and also resulted in alongshore changes to swash motions. Although alongshore changes in beach slope and wave breaking patterning over the bar were observed to be typically correlated, both were needed in a regression model to provide the best explaination of alongshore changes in . Rs. At infragravity frequencies (<0.05. Hz), alongshore variability was not well associated either with changes in beach slope or wave breaking patterning. Low-mode edge waves were observed in the swash measurements and their contribution to the total energy spectrum was greatest near the location where a shoal was observed, suggesting this shoal may play a role in forcing. The edge waves may have contributed to the swash variability observed at infragravity frequencies. However, in these reflective conditions, the infragravity band plays a secondary role in controlling alongshore variations to swash motions.

text: Observations of alongshore variability of swash motions on an intermediate beach Alongshore variability in swash motions - shoreline oscillations about the mean water level on the beach face - were investigated using video images and a high-resolution morphology survey on an intermediate beach. Under mild, swell-dominated offshore wave conditions, alongshore variation of up to 78$ in significant runup height . Rs (defined as 4 times the standard deviation of the swash time series) was observed. This variation was predominantly driven by energy at the incident (>0.05. Hz) frequencies (where most of the swash energy was observed), and, consistent with previous observations, was mainly controlled by changes in the slope of the beach face (measured at the mean swash location). However, alongshore patterning in wave breaking over the sandbar caused variation in the degree of wave dissipation along the beach and also resulted in alongshore changes to swash motions. Although alongshore changes in beach slope and wave breaking patterning over the bar were observed to be typically correlated, both were needed in a regression model to provide the best explaination of alongshore changes in . Rs. At infragravity frequencies (<0.05. Hz), alongshore variability was not well associated either with changes in beach slope or wave breaking patterning. Low-mode edge waves were observed in the swash measurements and their contribution to the total energy spectrum was greatest near the location where a shoal was observed, suggesting this shoal may play a role in forcing. The edge waves may have contributed to the swash variability observed at infragravity frequencies. However, in these reflective conditions, the infragravity band plays a secondary role in controlling alongshore variations to swash motions.

year: 2012

title: Māori beekeepers: Reframing New Zealand’s apiculture narratives

authors: Dimitrov, Dara

abstract: New Zealand’s historical apiculture narratives are dominated by the colonial settlers' experiences of beekeeping, which marginalised Māori experiences.  This has perpetuated the notion that historically, Maori had little to do with beekeeping.  However, this article contests this notion and demonstrates that after the introduction of the western honeybee, Māori were active participants in the apiculture industry, both as traders and beekeepers.  Moreover, this article explores the current contributions that Māori beekeepers make to New Zealand’s apiculture industry but continue to be ignored by the apiculture industry.  Despite this, this article shows that Māori beekeepers are making important contributions in the apiculture research space, working with researchers and research institutions to explore climate change impacts, floral honey diversity in the native forests and aspects of honeybee colony health.

text: Māori beekeepers: Reframing New Zealand’s apiculture narratives New Zealand’s historical apiculture narratives are dominated by the colonial settlers' experiences of beekeeping, which marginalised Māori experiences.  This has perpetuated the notion that historically, Maori had little to do with beekeeping.  However, this article contests this notion and demonstrates that after the introduction of the western honeybee, Māori were active participants in the apiculture industry, both as traders and beekeepers.  Moreover, this article explores the current contributions that Māori beekeepers make to New Zealand’s apiculture industry but continue to be ignored by the apiculture industry.  Despite this, this article shows that Māori beekeepers are making important contributions in the apiculture research space, working with researchers and research institutions to explore climate change impacts, floral honey diversity in the native forests and aspects of honeybee colony health.

year: 2024