Academic literature on the topic 'Stewart Island/Rakiura'

Sooty shearwaters (tītī, muttonbird, Puffinus griseus) are highly abundant migratory seabirds, which return to breeding colonies in New Zealand. The Rakiura Māori annual chick harvest on islands adjacent to Rakiura (Stewart Island), is one of the last large-scale customary uses of native wildlife in New Zealand. This study aimed to establish whether the rate at which muttonbirders can extract chicks from their breeding burrows indicates population trends of sooty shearwaters. Harvest rates increased slightly with increasing chick densities on Putauhinu Island. Birders' harvest rates vary in their sensitivities to changing chick density. Therefore a monitoring panel requires careful screening to ensure that harvest rates of the birders selected are sensitive to chick density, and represents a cross-section of different islands. Though harvest rates can provide only a general index of population change, it can provide an inexpensive and feasible way to measure population trends. Detecting trends is the first step to assessing the long-term sustainability of the harvest.

Few studies of populations of feral cats have simultaneously monitored the seasonal abundance of primary prey and the possible ‘prey-switch’ to alternative prey when primary prey abundance declines. On Stewart Island, when the abundance of feral cats’ primary prey, rats (Rattus spp.), was very low, significantly more cats died or left the study area than when rats were abundant. Cats preferentially preyed on rats regardless of rat abundance. Birds were the main alternative prey but cats did not prey-switch to birds when rat abundance was low, possibly owing to the difficulty of capture, and small mass, of birds compared with rats. On Stewart Island numbers of feral cats are restricted by seasonal depressions in abundance of their primary prey, coupled with limited alternative prey biomass.

Rakiura Maori (a tribe of indigenous people in New Zealand) continue a centuries-old customary use of Sooty Shearwater (Puffinus griseus, titi, muttonbird) chicks from islands adjacent to Rakiura (Stewart Island). Some muttonbirders pluck chicks by hand, while others have recently changed to a plucking machine. We compared traditional and modern processing methods to see if new technology stands to increase the efficiency, size and cost effectiveness of harvest. On average, chicks were plucked 6 seconds quicker with a machine, which could potentially increase the catch by up to 4%. Innovation by using wax rather than water to remove down left after plucking saved muttonbirders 29–97 minutes per day, potentially allowing up to a 15% increase in the number of chicks harvested. Both wax and plucking machines increased costs, which led to a modest financial gain from using wax, but a net loss from using a plucking machine. Modern technologies have been introduced mainly for convenience and to ease labour in this customary use of wildlife. New technology may erode traditional skills, but does not necessarily pose a risk to the sustainability of a resource. Financial investment in harvest technologies might provide an incentive to increase harvest levels, but could equally provide an incentive to manage for sustainable use. Preservation lobbies are not justified in presuming that new technologies will always threaten wildlife traditionally used by indigenous people.

This thesis examines the implementation of tourism strategies in a rural community context. Applying public policy implementation theory to tourism research, this study investigates questions related to connections and collaborations between stakeholders, decision-making and inducing action and the relation between objectives in a strategy document and actual outcomes of a policy process. Two tourism planning strategies in rural peripheral communities of New Zealand�s South Island are investigated adopting a case study approach. While these strategies have in common their geographical and content foci, they differ in terms of commissioning agencies, stakeholder and community involvement, age, resource allocation and planning and implementation approaches. The strategies are four and eleven years old. One is a top-down strategy by a government agency, the other is the result of a community bottom-up process. Using a pragmatic methodical approach and applying a framework that incorporates the implementation environment including stakeholders and decisive events during strategy making, this research assesses the two cases individually and comparatively. Thus applying a non-linear framework and examining strategies that allow for an investigation of longer implementation timeframes, this study overcomes long-standing issues in this type of research. It fills a gap in the literature as it is the first comprehensive analysis of tourism plan implementation to employ public policy implementation theory in one coherent case study approach. The methods applied in this study include semi-structured interviews as well as content analysis of strategy and policy documents, internal documents such as minutes of meetings and newspaper articles. Starting with strategy makers and �key implementers�, a snowballing process was used to identify further interviewees and to also follow the policy process as perceived by the main actors in it. This combination of methods allowed for a discovery of the policy story; it assisted a process-oriented investigation of tourism plan implementation while at the same time providing factual information and verifying stakeholder statements through triangulating interview results with the content analysis of documents. Overall, for both the top-down and the bottom-up planning case, implementation was found to be dynamic and highly dependent on the actors at the grassroots level. Many critical stakeholders are volunteer community members who have little or no experience in tourism planning. Most actors are tourism operators or are otherwise involved with the industry. However, as some actors are not actively involved in the tourism industry but represent interests related to the protection of the social and natural environment, their views and actions have the potential to be anti-tourism development and therefore they evoke conflict. The two planning approaches do not differ significantly in terms of bureaucratic control and political guidance. Institutions such as, for example, district councils or economic development agencies, mainly impact on the availability of resources to plan and implement strategy goals. Whether or not goals are achieved therefore ultimately depends on the commitment and interest of all stakeholders involved. Other important factors for policy success are the stability of stakeholder relationships and the level of information and knowledge held by those stakeholders, particularly in situations where there is little support from agencies. This is evident where a stakeholder�s previous experience in community work and relevant know-how is considered an asset among the volunteers who are responsible for many of the projects. The potential for conflict and the necessity for implementers to �make do� with the funding, knowledge and information they have, accounts for high volatility of priorities and goals during implementation. Key findings that relate to both the tourism planning and the public policy literature refer to the similarities of implementation processes for top-down and bottom-up strategies at a grassroots level, the significant role and decisive influence that inexperienced volunteer implementers have in such settings and the high degree to which policy change takes place during such processes.

Inbreeding depression is one of the factors that can increase the risk of extinction of small populations, and therefore understanding its effects is currently an important issue in conservation biology. Until recently, few studies on inbreeding depression were carried out in wild populations. These recent studies have highlighted the variability in detecting inbreeding depression among natural populations and the multitude of factors that can influence its expression. Many of the factors affecting inbreeding depression in wild populations remain largely unexplored and most of the recent studies in this area have tended to focus on incidents of inbreeding in populations with a history of large population size. The aim of this study is to investigate the relative importance inbreeding depression has had on individual fitness parameters in a population of New Zealand's Stewart Island robins Petroica australis rakiura introduced to Ulva Island. This island population has historically gone through several population bottlenecks. Four main factors that potentially influence the rate of inbreeding and the extent of inbreeding depression, were investigated: environmental variability, life history stage, genetic load and dispersal. Generalized Linear Mixed Modelling was first used to determine how weather affected nest survival. Weather effects were then incorporated into models containing demographic factors to control for environmental variability, and finally parental, maternal and paternal inbreeding co-efficients (=f) were added to models to determine the relative importance of inbreeding depression. Interactions between inbreeding depression and environmental factors were explored. Three different life history stages were compared to determine the differences in inbreeding depression at each stage as well as cumulative effects over time. The genetic load of the population was estimated using lethal equivalents allowing for standardised comparison of inbreeding depression with other species. The likelihood of inbreeding in the population was also explored by investigating the factors affecting dispersal patterns and evaluating evidence for inbreeding avoidance. Inbreeding depression was found to be mild in the robin population. Weather did not have strong effects on nest survival or interactions with inbreeding. Female age was the only factor interacting with inbreeding, with younger inbred females experiencing significantly reduced offspring juvenile survival. Parental and paternal f did not significantly affect brood survival at any life history stage, however, maternal f showed significant effects on nest juvenile survival with the strongest effect occurring when survival was examined cumulatively over all life history stages. The Stewart Island robin had a relatively low lethal equivalent value compared to the closely related North Island robin and other avian species. This difference was associated with the Stewart Island robin having a low genetic load, most likely due to historical genetic purging during periods of population bottleneck. The Ulva Island robin population did not appear to be avoiding inbreeding through dispersal. Dispersal distance was most strongly influenced by the location of the natal nest of the dispersing offspring. In conclusion, the genetic history of the population was likely to have had the strongest impact on the severity of inbreeding depression in the Ulva Island robin population. The results of the thesis highlight the need to examine a number of factors to be able to explain variability in inbreeding depression among populations.