scholarly journals Quantifying Threats to Biodiversity and Prioritizing Responses: An Example from Papua New Guinea

Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 248
Author(s):  
Thomas H. White ◽  
Patricia Bickley ◽  
Cory Brown ◽  
Dave E. Busch ◽  
Guy Dutson ◽  
...  

Accurately identifying threats to global biodiversity is the first step towards effectively countering or ameliorating them. However, such threats are usually only qualitatively categorized, without any comparative quantitative assessment of threat levels either within or across ecosystems. As part of recent efforts in Papua New Guinea to develop a long-term strategic plan for reducing threats to biodiversity at the national level, we developed a novel and quantitative method for not only assessing relative effects of specific biodiversity threats across multiple ecosystems, but also identifying and prioritizing conservation actions best suited for countering identified threats. To do so, we used an abbreviated quantitative SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis and multivariate cluster analysis to identify the most significant threats to biodiversity in Papua New Guinea. Of 27 specific threats identified, there were nine major threats (each >5% of total) which accounted for approximately 72% of the total quantified biodiversity threat in Papua New Guinea. We then used the information to identify underlying crosscutting threat drivers and specific conservation actions that would have the greatest probability of reducing biodiversity threats across multiple ecosystem realms. We categorized recommended actions within three strategic categories; with actions within each category targeting two different spatial scales. Our integrated quantitative approach to identifying and addressing biodiversity threats is intuitive, comprehensive, repeatable and computationally simple. Analyses of this nature can be invaluable for avoiding not only wasted resources, but also ineffective measures for conserving biodiversity.

Viruses ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 482
Author(s):  
Alice Michie ◽  
John S. Mackenzie ◽  
David W. Smith ◽  
Allison Imrie

Ross River virus (RRV) is the most medically significant mosquito-borne virus of Australia, in terms of human morbidity. RRV cases, characterised by febrile illness and potentially persistent arthralgia, have been reported from all Australian states and territories. RRV was the cause of a large-scale epidemic of multiple Pacific Island countries and territories (PICTs) from 1979 to 1980, involving at least 50,000 cases. Historical evidence of RRV seropositivity beyond Australia, in populations of Papua New Guinea (PNG), Indonesia and the Solomon Islands, has been documented. We describe the genomic characterisation and timescale analysis of the first isolate of RRV to be sampled from PNG to date. Our analysis indicates that RRV has evolved locally within PNG, independent of Australian lineages, over an approximate 40 year period. The mean time to most recent common ancestor (tMRCA) of the unique PNG clade coincides with the initiation of the PICTs epidemic in mid-1979. This may indicate that an ancestral variant of the PNG clade was seeded into the region during the epidemic, a period of high RRV transmission. Further epidemiological and molecular-based surveillance is required in PNG to better understand the molecular epidemiology of RRV in the general Australasian region.


2021 ◽  
Author(s):  
Fiorella Prada ◽  
Leonardo Brizi ◽  
Silvia Franzellitti ◽  
Stefano Mengoli ◽  
Simona Fermani ◽  
...  

Abstract The responses of corals and other marine calcifying organisms to ocean acidification (OA) are variable and span from no effect to severe responses. Here we investigated the effect of long-term exposure to OA on skeletal parameters of four tropical zooxanthellate corals living at two CO2 vents in Papua New Guinea, namely in Dobu and Upa Upasina. The skeletal porosity of Galaxea fascicularis, Acropora millepora, and Pocillopora damicornis was higher (from 17% to 38%, depending on the species) at the seep site compared to the control only at Upa Upasina. Massive Porites showed no differences at any of the locations. Pocillopora damicornis also showed a ~ 7% decrease of micro-density and an increase of the volume fraction of the larger pores, a decrease of the intraskeletal organic matrix content with an increase of the intraskeletal water content, and no variation in the organic matrix related strain and crystallite size. The fact that the skeletal parameters varied only at one of the two seep sites suggests that other local environmental conditions interact with OA to modify the coral skeletal parameters. This might also contribute to explain the great deal of responses to OA reported for corals and other marine calcifying organisms.


1999 ◽  
Vol 5 (1) ◽  
pp. 53-78
Author(s):  
Robert J. Foster

The reasons for the nation-state's weakness are many, but the course of TV talk over the last 10 years in Papua New Guinea reveals one reason in particular: the sacrifice of long-term-state-building to the immediate demands of electoral strategy.


2019 ◽  
Vol 30 (2) ◽  
pp. 100
Author(s):  
Gael Keig ◽  
Robin L. Hide ◽  
Susan M. Cuddy ◽  
Heinz Buettikofer ◽  
Jennifer A. Bellamy ◽  
...  

Following Papua New Guinea (PNG) Independence in 1975, the new administration approached Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) directly concerning the need to address issues related to food security and village-based agriculture. A subsequent series of collaborative research projects between CSIRO and PNG government departments built upon the existing survey information to provide PNG with one of the earliest national-level, computer-based resource information systems, with widespread applications, particularly in agriculture, forestry, environmental management and planning. Part 1 of this historical review discussed the evolution, conduct and outcomes of the CSIRO integrated surveys over the period 1950–75, while Part 2 describes the subsequent research projects that arose from the surveys and concluded in 2000. In addition, the legacy of CSIRO involvement in land research in PNG is examined in relation to advances made both within individual scientific disciplines and in other relevant technological fields, and to operational challenges and structural change within the organisation.


The pioneering and hugely influential work of Mikhail Bakhtin has led scholars in recent decades to see all discourse and social life as inherently “dialogical.” No speaker speaks alone because our words are always partly shaped by our interactions with others, past and future. Moreover, we never fashion ourselves entirely by ourselves but always do so in concert with others. Bakhtin thus decisively reshaped modern understandings of language and subjectivity. And yet, the contributors to this volume argue that something is potentially overlooked with too close a focus on dialogism: many speakers, especially in charged political and religious contexts, work energetically at crafting monologues, single-voiced statements to which the only expected response is agreement or faithful replication. Drawing on ethnographic case studies from the United States, Iran, Cuba, Indonesia, Algeria, and Papua New Guinea, the authors argue that a focus on “the monologic imagination” gives us new insights into languages’ political design and religious force, and deepens our understandings of the necessary interplay between monological and dialogical tendencies.


Author(s):  
David Hegarty

At independence the three Melanesian states of the Pacific Islands region – Papua New Guinea (1975), Solomon Islands (1978) and Vanuatu (1980) – opted for decentralised systems of government. In all cases a three-tier system of national, provincial and local government was introduced, although the specific arrangements and allocation of powers differed substantially. Since that time there has been a good deal of analysis about the policy processes of decentralisation itself and about the effectiveness (or otherwise) of national-level governance in these countries; but until recently little has been written about the lower levels.This short article surveys some of the recent research and commentary on local-level governance relating particularly to Papua New Guinea (PNG) and Solomon Islands. It focuses on both the poor condition of formal local-level government as well as on the rise of informal governance-type activity at the local level which might be described as ‘civil society in formation’.


2014 ◽  
Vol 25 (4) ◽  
pp. 440-450 ◽  
Author(s):  
METODIJA VELEVSKI ◽  
STOYAN C. NIKOLOV ◽  
BEN HALLMANN ◽  
VLADIMIR DOBREV ◽  
LAVRENTIS SIDIROPOULOS ◽  
...  

SummaryThe Egyptian Vulture has been classified as ‘Endangered’ due to a rapid population decline in India and long term declines in Europe and Africa. Although the species has been reported to be declining in Eastern Europe, no quantitative assessment of the magnitude or the causes for population declines are available. We used monitoring data from the Balkan Peninsula to estimate changes in population size and extent of occurrence of Egyptian Vultures between 1980 and 2013. We quantified population trends in three countries (Bulgaria, Greece and the former Yugoslav Republic [FYR] of Macedonia) to assess whether population declines are similar within the Balkan range states. We found a rapid and consistent decline of the Egyptian Vulture population that was largely similar among the three countries (λ = 0.940 in FYR of Macedonia, 0.951 in Bulgaria, 0.920 in Greece). As a consequence of population declines, the breeding range of Egyptian Vultures has contracted and the population in the Balkan Peninsula has fragmented into six subpopulations separated by more than 80 km. Population declines may be driven by factors such as poisoning, electrocution, direct persecution and changes in food availability which operate at large spatial scales and affect birds both on breeding grounds as well as during migration and wintering. Because the relative importance of threats to the survival of Egyptian Vultures are poorly understood, there is a critical need for research into causes of mortality and potential conservation actions that may halt and reverse population declines.


2012 ◽  
Vol 12 (5) ◽  
pp. 575-587 ◽  
Author(s):  
Neil Maclean

Drawing on Schutz’s treatment of the We-relationship and of meaning contexts, and on Michael Jackson’s exploration of the ambiguities of the intersubjective, this article examines the methodological implications of the empathic orientation developed in the context of intimacy for a discipline based on participant observation. I argue that moments of ‘breakdown’, a classic way in which ethnographic questions are revealed, are predicated on the intentional dynamics of intersubjective relationships. I draw on a particular experience of ‘breakdown’ on an overnight truck trip in Highlands Papua New Guinea juxtaposed with expectations of intimacy developed over long-term fieldwork spanning 12 years.


1977 ◽  
Vol 17 (87) ◽  
pp. 550 ◽  
Author(s):  
JH Schottler ◽  
A Boromana ◽  
WT Williams

Fifty female Brahman-cross cattle and 50 water buffalo were run on the infertile native pastures of the Sepik lowland plains, Papua New Guinea; half the buffalo, and all the cattle, received mineral supplementation (phosphate, Ca, Cu and Co). After the beginning of the experiment all animals were able to maintain, but not improve, their weights. The liveweights attained were everywhere less than those attained on more fertile pastures elsewhere in Papua New Guinea, the discrepancy being greater for cattle than for buffalo. Supplementation improved both the mean liveweight of buffalo and the growth rate of the calves. Calf mortality was 18 per cent in both species. Despite the longer gestation period, the buffalo produced nearly 50 per cent more calves than the cattle; buffalo more often than not conceived while still lactating, whereas cattle did so only rarely. There was some evidence of a long-term improvement in fertility as a result of supplementation. It is concluded that under these difficult conditions buffalo are a better proposition than cattle.


2021 ◽  
Author(s):  
Isabelle Braud ◽  
Jérôme Gaillardet ◽  
François Mercier ◽  
Sylvie Galle ◽  
Virginie Entringer

<p>Implementing the Whole System Approach for long-term ecosystem, critical zone and socio-ecological system research requires going beyond existing structuration of scientific communities and observation networks. Indeed, existing observation networks were often built independently from each other, on a very disciplinary basis, with their own scientific objectives, funding mechanisms and institutional constraints. To tackle the observation challenges of the “new climatic regime” in the Anthropocene, a new type of observational platforms, more compatible with a scientific systemic approach needs to be built taking into account the history and institutional contexts of long-term observatories.</p><p><br>We have attempted to represent the diversity of critical zone observatories, sites and network of observatories that exist and that have been founded by different research institutions in France over the last 40 years and that are now gathered in the OZCAR Critical Zone network. Our representation encapsulates three main characteristics: the spatial scales of investigation (from the plot scale to the continental-scale watershed), the diversity of monitored compartments (catchments, glaciers, peatlands, aquifers…), and the institutional dimension (labeling and founding at the national level).  We found that a representation in the form of a tree, mimicking the phylogenetic tree of life, named the OZCAR-tree, was offering a visualization tool able to capture the philosophy and rationale of the network and was useful to improve the communication with the neighboring infrastructures, users and stakeholders. The branches of the tree represent the nested monitored scales, with the small branches of the tree representing monitored parcels or small catchments. The trunks represent networks of sites investigating the same compartment. For monitored catchments, the representation directly shows the various sampled scales and their nested organization from upstream to downstream. At each site, colored pie charts allow us to visualize rapidly the types of data that are collected, each part of the pie being a component of the critical zone (atmosphere, soil water, aquifers, vegetation, snow, ice…). This visualization directly shows the focus of the various sites, the completeness of measurements conducted by the different scientists, but also the missing compartments. It also shows that, if the network, as a whole is able to sample the various compartments and variables required for implementing the whole system approach, it is rarely the case when considering individual sites.</p><p>Beyond being a visualization tool, the OZCAR-tree helps representing the requirements of a “whole critical zone approach”. Because all compartments of the critical zone are connected vertically and horizontally by processes and fluxes of energy and matter, the tree is meant to represent all the components to be monitored and what should be the spatial architecture of a monitoring network fulfilling the disciplinary questions and approaches. The tree is therefore an illustration of a conceptual and idealized network (devoid of cost issues) of terrestrial surfaces monitoring infrastructure respectful of disciplinary approaches.</p><p>Finally, this representation is open to ecological and socio-ecological communities and may serve as a template for fostering collaboration with ecological and socio-ecological communities and networks and implementing observation platforms at the scale of changing territories.</p>


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