Physiology of Chatham Island forget-me-not (Myosotidium hortensia) seed : a thesis presented in partial fulfilment of the requirements for the degree of Master of Applied Science in Seed Science and Technology at Massey University

Chatham Island forget-me-not (Myosotidium hortensia (Decne) Baillon) is endemic to the Chatham Islands where it is mainly confined to the outer islands. There is speculation that seed of M. hortensia is recalcitrant and reports that germination can be slow and erratic. Moreover there is little information on the seed biology of M. hortensia available. In this study the seed structure and composition of the seed storage reserves of M. hortensia were determined. The seed is a dicotyledon. The embryo is predominantly cotyledonary tissue with a only small embryo axis present. There appears to be a single cell thick layer of endosperm tissue between the embryo and seed coat. Food reserves are stored as both protein and oil with no starch reserves apparent. The seed contains 24% oil and therefore can be considered an oilseed. These oil reserves include the commercially important γ-linolenic (cis, cis, cis-6, 9, 12-octadecatrienoic) acid (9% of the fatty acid content). Seed of M. hortensia was evaluated for recalcitrant behaviour by determining if desiccation to low seed moisture content caused a loss of viability. Seed was harvested at two moisture contents, 47.4% (green seed) and 35.5% (black seed), and air dried to a final moisture content of 7.5%. Seed viability and germination performance were monitored at harvest and as moisture content declined. At 7.5% seed moisture content viability was 89% and germination 92% for seed harvested at 47% seed moisture content, and 82% and 78%, respectively, for seed harvested at 36% seed moisture content. Within each colour classification, after desiccation there was no significant difference in germination compared to that at harvest, indicating that M. hortensia seed can be desiccated to a low seed moisture content without loss of germination and is therefore not recalcitrant. Seed stored at 5°C and 7.5% seed moisture content showed no decline in viability after 21 months, but, seed stored at the same temperature and 9.5% seed moisture content showed a significant loss of viability after 9 months storage. The loss of viability at this higher (9.5%) seed moisture content is characteristic of oilseeds, but it is not clear whether the high oil content of the seed alone can account for the loss of viability after nine months storage at a temperature of 5°C. This study confirmed earlier reports that germination of M. hortensia seed is slow and erratic. At maturity seed of M. hortensia is dormant. Seed dormancy is a function of the seed coat rather than the embryo. The dormancy is likely to be a result of either physical constraint of embryo growth or restriction of gas exchange by the seed coat, or a combination of both. Removal or weakening of the seed coat allowed germination to proceed. However, some of the treatments used to weaken the seed coat resulted in an increase in abnormal seedling development. An effective and non-damaging technique for alleviating dormancy was to prick the seed coat with a 0.6-0.8mm diameter dissecting needle in the middle of the cotyledons

Vessel-level productivity in Commonwealth fisheries

The total factor productivity of the Commonwealth Trawl Sector of the Southern and Eastern Scalefish and Shark Fishery is estimated for the period 1996–97 to 2008–09 using vessel-level data and a traditional approach that captures the production decisions of fishers. The paper develops a replicable methodology and calculates benchmark productivity estimates by which future estimates for other Commonwealth fisheries can be evaluated. Productivity estimates presented in this paper are based on vessel-level financial and catch data collected by ABARES in its annual survey of the fishery and the application of the Fisher index method. The analysis of trends in productivity offers important new information to decision-makers. Changes in the way in which fishers organise the transformation of inputs into outputs have a direct impact on firm-level economic performance. Changes in productivity at the vessel level illustrate the response of the fleet to policy settings in the fishery and, more broadly, to environmental factors. This is of particular value for fishery managers when they consider policy instruments—such as fish stocks, technology and fleet structure—that might affect the drivers of productivity growth in fisheries.Agribusiness, Resource /Energy Economics and Policy,

Somatic Nationalism and Spectacle in Hugh MacLennan’s Barometer Rising

Critics of Barometer Rising (1941) tend to treat the novel’s various personages as rigigly representing aspects of Canadian identity. Such an approach, however, reduces characters to components of an abstract national schema that sits awkwardly alongside the novel’s visceral descriptions of the Halifax Explosion. This dualist view fails to account for how feelings and sensations are also among the building blocks of national identity in the novel. Sara Ahmed insists that “affective economies” are key to aligning individuals with communities through public events that elicit shared emotional responses. Barometer Rising stages such events to bring Haligonians together emotionally and physically, representing and rehearsing a particularly somatic nationalism. In this regard the novel makes a significant contribution to accounts of national identity in its insistence that citizens are drawn into the nation through their emotional and erotic lives

Teacher Perspectives Regarding the Pedagogical Practices Most Culturally Responsive to African American Middle School Students

This dissertation examines teacher’s perspectives regarding the classroom strategies, behaviors, and approaches they believed best support the development of African American students. Educator perceptions are valuable to understand because perceptions and attitudes undergird behavior and practices. This study focused on perceptions of teachers toward pedagogical strategies, approaches, and teacher behaviors that perceived to best support African American students because of the persisting achievement gap between African American students and their White, middle class counterparts. Culturally Relevant Pedagogy was used as the theoretical framework for this study as it describes approaches to teaching students from historically marginalized groups in ways that are more relevant to their cultural strengths, assets, and knowledge-bases. Q methodology was selected for this study because it was designed to examine human subjectivity using both quantitative and qualitative techniques. Forty-two teachers sorted 36 statements, each representing a practice, strategy, or behavior identified by participants as being culturally relevant to African American students, based on their perceived effectiveness. These 42 Q sorts were then correlated. Principal component analysis and Varimax rotation were used to examine the relationships among the correlations and extract 4 factors, 1 of which was bipolar, or containing two different, but mirrored perspectives. The factor arrays of these 5 perspectives were then examined, described, and named: Responsive to Students Cultural Backgrounds, Responding through Honoring and Exploring Culture, Responding through Structure, Routines, and Direct Advocacy, Conducive and Inclusive Learning Environment, Non-responsive Culture Free Pedagogical Practices. Implications and recommendations for practice, theory, and policy were also discussed

“That’s My Boy”: Challenging the Myth of Literary Mentorship as In Loco Patris

Literary mentors have long been mythologized as serving in loco patris: i.e., in the place of their mentees’ fathers. Focusing on depictions of such mentorship in Tom Grimes’s Mentor (2010), the anthology A Manner of Being (2015), and Debra Weinstein\u27s Apprentice to the Flower Poet Z. (2004), we observe that these depictions repeatedly cast mentorship as dyadic, hierarchical, and homosocial. We argue that such depictions rehearse patriarchal norms with respect to literature, gender, and parenthood while fostering fraught psychological dynamics. Consequently, we identify a need for greater self-reflexivity about mentoring relations and a greater focus on alternative forms that mentorship can take

Feeding and foraging ecology of Trindade petrels Pterodroma arminjoniana during the breeding period in the South Atlantic Ocean

Seabirds breeding in tropical environments experience high energetic demands, when foraging in an oligotrophic environment. The globally threatened Trindade petrel Pterodroma arminjoniana has its largest colony in Trindade Island (20°30′S–29°19′W) inside the oligotrophic South Atlantic Subtropical Gyre. Diet sampling methods, geolocator tracking and stable isotope analysis were used to describe its diet, compare foraging trips and distributions, and assess temporal variations in the trophic niche throughout the breeding period. Diet consisted mainly of squid and fish. The high species diversity and wide range of prey sizes consumed suggests the use of multiple foraging techniques. Stable isotope mixing models confirm that Trindade petrels rely mainly on squid throughout the breeding period. Its broad isotopic niche seems to reflect both a diverse diet and foraging range, since birds can reach up to 3335 km from the colony. Isotopic niche showed limited variation even in an 8-year interval, apparently due to oceanographic stability, although changes in the isotopic niche have demonstrated an adjustment to different conditions in different seasons. Petrels change foraging areas and prey during the breeding period: pre-incubating birds use more productive areas west of Trindade Island and obtain low trophic position prey; incubating petrels perform longer trips southward to consume prey of high trophic position; and chick-rearing petrels use areas around the island. These results demonstrate that to deal with high demand breeding in a colony surrounded by oligotrophic waters, Trindade petrels need to explore wide foraging areas and utilize a diverse diet, besides adjusting trophic niche according to breeding stage

Legacy pollutants are declining in Great Skuas (Stercorarius skua) but remain higher in Faroe Islands than in Scotland

To monitor environmental pollutants in Faroese biota, samples from a top predator were analysed and put into a spatial and temporal context. Analysis of 20 Great Skua eggs sampled in 2012 from the Faroe Islands showed >70 % lower concentrations of legacy persistent organic pollutants (POPs) than in samples analysed in 1977. The 2012 Faroese eggs showed higher concentrations than for eggs in Shetland from about the same period (2008). Eggshells were analysed for sub-lethal effects but there were no detectable effects of legacy POP levels on eggshell colour or thickness. A temporal decline in legacy POPs would indicate a reduction in the general pollutant levels present in the environment as has been shown in other areas of the North Atlantic, but there are significant geographic differences in POPs levels likely due to differences in diet resulting in significantly different exposures on a relatively limited spatial scale

What is justice for the LGBTQ+ person in the Catholic school in Scotland? A Capabilities approach

In 2018 The Scottish Government accepted all 33 recommendations of the LGBTQI Working Group set up to explore issues of LGBTQ+ inclusion in Scottish schools. This new move to LGBTQ+ visibility and presence is to be across all school stages, across the curriculum and supported by regulation and inspection bodies. However, it sits within an education system that has within the recent past been subject to legislation, such as Section 28, that prohibited LGBTQ+ presence in schools and in a wider society that has seen some protest against LGBTQ+ inclusion in schools. This new policy and approach therefore raises key questions about the possibility and potential of inclusion. In a Scottish context, this is particularly apt as a significant number of state schools are denominationally Catholic. The Catholic Church has in the past been powerful and vocal in the discourses of exclusion for LGBTQ+ persons and curriculum content in Scottish schools. I argue, that through a clearer understanding and articulation of justice, employing the core ideas of Nussbaum’s Capabilities Approach, the discussion of LGBTQ+ inclusion in Catholic schools can be moved from the current fear and conflict to an imagined consensus where all are entitled to the capabilities to be and do those things they have reason to value. I maintain that, in contrast to the justification of exclusion -- based on a reliance on disjointed doctrine and scandal in Catholic education -- LGBTQ+ inclusion sits within Catholic ideas of hospitality, difference, and freedom in with each person is entitled to full human dignity and as an end in themselves. As a result, I propose that Catholic schools should and ought to be places of LGBTQ+ presence and visibility at the institutional, pedagogical and pastoral levels

Half a world apart? overlap in nonbreeding distributions of Atlantic and Indian ocean thin-billed prions

Distant populations of animals may share their non-breeding grounds or migrate to distinct areas, and this may have important consequences for population differentiation and dynamics. Small burrow-nesting seabirds provide a suitable case study, as they are often restricted to safe breeding sites on islands, resulting in a patchy breeding distribution. For example, Thin-billed prions Pachyptila belcheri have two major breeding colonies more than 8,000 km apart, on the Falkland Islands in the south-western Atlantic and in the Kerguelen Archipelago in the Indian Ocean. We used geolocators and stable isotopes to compare at-sea movements and trophic levels of these two populations during their non-breeding season, and applied ecological niche models to compare environmental conditions in the habitat. Over three winters, birds breeding in the Atlantic showed a high consistency in their migration routes. Most individuals migrated more than 3000 km eastwards, while very few remained over the Patagonian Shelf. In contrast, all Indian Ocean birds migrated westwards, resulting in an overlapping nonbreeding area in the eastern Atlantic sector of the Southern Ocean. Geolocators and isotopic signature of feathers indicated that prions from the Falklands moulted at slightly higher latitudes than those from Kerguelen Islands. All birds fed on low trophic level prey, most probably crustaceans. The phenology differed notably between the two populations. Falkland birds returned to the Patagonian Shelf after 2-3 months, while Kerguelen birds remained in the nonbreeding area for seven months, before returning to nesting grounds highly synchronously and at high speed. Habitat models identified sea surface temperature and chlorophyll a concentration as important environmental parameters. In summary, we show that even though the two very distant populations migrate to roughly the same area to moult, they have distinct wintering strategies: They had significantly different realized niches and timing which may contribute to spatial niche partitioning

Characterization of Indoor Arenas through an Anonymous Survey

Equine farms are building both stables for the horses to live in and additional facilities to train and work horses (Kidd et al., 1997). For many of these farms, an outdoor arena that has an all-weather footing is the first working facility built. During inclement weather the ability to train in the outdoor arenas is inhibited, which in turn means the trainers, riders, and farms lose income as money is only made when horses are working, training, and competing. Indoor arenas allow for horses to continue to be worked no matter the weather conditions. The equine industry contributes a total of $122 billion dollars a year to the United States\u27 economy. The expenditures to build and maintain these arenas the horses utilize for training and work are a portion of the equine economic contribution (American Horse Council Foundation, 2018). During the summer of 2018, an anonymous online survey was conducted to begin to characterize indoor arenas. Owners, managers, and riders were questioned on a variety of topics including arena construction and design, arena usage, footing type, maintenance practices, environmental concerns, and potential health issues experienced within the facilities. Respondents in the study defined indoor arenas differently depending on geographic region, however most definitions included a roof, some enclosure, and footing in order to work the horses. In addition, of the 335 respondents of the survey, 71% or 239 respondents reported having concerns about the environment within the indoor arena. The three main concerns are dust, moisture, and lack of air movement. Overall, the survey begins to build our understanding regarding these facilities and provides the framework to continue research in the future