scholarly journals Kimberley tropical monsoon rainforests of western Australia: perspectives on biological diversity

2018 ◽  
Vol 12 (1) ◽  
pp. 149-228
Author(s):  
Kevin F. Kenneally

There are more than 1,500 patches of monsoon rainforest, totaling 7,000 hectares, scattered across 170,000 square km of the tropical Kimberley region of Western Australia. They are small, isolated and embedded within a mosaic of mostly flammable eucalypt savanna woodlands. The status and condition of Kimberley monsoon rainforest biodiversity are assessed based on geographically comprehensive survey data from a total of 100 sites and opportunistic collecting in many others. Monsoon rainforests are rich in species not found in the region’s other vegetation communities. Most rainforests and their associated faunal assemblages are not currently reserved and many of the survey sites were found to be severely disturbed by fire and introduced feral cattle. The disturbance impact of fires, introduced animals and weeds is shown to apply generally across the three major forms of land tenure operating in the Kimberley; namely, Aboriginal land (including Indigenous Protected Areas), Crown land (including pastoral leasehold), and national parks and reserves. The implications of these disturbance factors on the conservation and management practices of monsoon rainforest patches in the region are considered. It is concluded that conservation of patches requires active fire and feral animal management. Equally, however, the long-term genetic viability of these small scattered patches and populations requires effective conservation at the landscape scale. Mounting evidence of the Kimberley as a historical and significant center of refugia warrants action from scientists, governments, conservation agencies, Indigenous landholders as well as local communities to protect and conserve its unique biota and the processes responsible for generating and sustaining it.

Soil Research ◽  
2015 ◽  
Vol 53 (6) ◽  
pp. 695 ◽  
Author(s):  
Noel Schoknecht

A ‘Report Card’, which summarises the current knowledge of the status and trend in land condition in the agricultural areas of the south-west of Western Australia, was published in 2013 by the Department of Agriculture and Food, Western Australia. The Report Card draws on best available evidence from government and industry on the current condition and trend of 10 soil- and water-related natural resource themes relevant to agriculture, and discusses the implications of these results for the agricultural industries. The report also discusses the three main factors driving the performance of the land, namely climate, land characteristics and land management. The first two factors are largely out of the control of land managers, but in a drying and warming climate of the agricultural areas of Western Australia, land-management practices need to be able to respond to these changing conditions. The paper briefly explains the methodologies used to assess the seven soil-related themes in the Report Card and summarises the major findings. The results indicate that, for soils, the situation and outlook for our natural resources is mixed. Although there has been progress in some areas, such as managing wind and water erosion, the status and trend in many indicators of resource condition, such as soil acidity, soil compaction and water repellence, are adverse. The predicted growth in global demand for food and fibre brings many opportunities to the Western Australian agri-food sector but also challenges, especially in light of the Report Card findings. One of these challenges is our need to achieve agricultural productivity growth while ensuring our natural resources are healthy and resilient.


Terra ◽  
2021 ◽  
Vol 133 (2) ◽  
Author(s):  
Helena Tukiainen ◽  
Jan Hjort

The diversity of nature consists of two complementary components: biological diversity (biodiversity) and abiotic diversity (geodiversity). Biodiversity is widely acknowledged in both research, and conservation and management practices, whereas geodiversity (the variety of abiotic features and processes of the land surface and subsurface) is just emerging as a research and practical issue. In this study, we introduce the geodiversity concept in Finnish context and explore how landscape-scale geodiversity varies in Finland and between Finnish municipalities. In addition, we study how geodiversity varies between nature areas and human impacted areas and how Finnish strict nature reserves and national parks succeed in capturing geodiversity. According to the results, there is distinct geographical variation in geodiversity in Finland. The geodiversity of municipalities varies through the country but, on average, municipalities in the southern and northern parts of the country have especially high geodiversity values. Interestingly, human impacted areas have slightly higher geodiversity than nature areas. Nature conservation areas manage especially well in capturing geomorphological richness. This study emphasizes the need for the investigation of geodiversity on a national and sub-national level. Study of geodiversity provides information on nature beyond current biodiversity-focused perspectives, which can be further utilized in e.g., land-use and nature conservation planning.


2021 ◽  
Author(s):  
Gidey Yirga ◽  
Solomon Amare ◽  
Fikirte Gebresenbet ◽  
Hans H. De Iongh ◽  
Matthijs Vos ◽  
...  

AbstractEthiopia is renowned for its cultural and biological diversity and covers an important share of lion habitat in Africa, providing connectivity between East and Central Africa. The aim of this study was to investigate the status of lions and human–lion conflict in several protected areas of Ethiopia and to present an overview on lion distribution nationally. We used call-ups and semi-structured interviews with 809 randomly selected pastoralists to investigate human–lion conflict and pastoralist perceptions towards lions in five priority sites and collected further anecdotal information for all other known or possible lion range. We had chance encounters with six lions, but we observed no lion responses to the call-ups. We recorded 145 spotted hyaena and 23 jackal responses at, respectively, 25 and 13 of the 46 call-up stations. Overall, respondents viewed lions as dangerous carnivores, but nonetheless responded that lions should be present regionally, preferably in restricted areas. Most respondents disagreed that the killing of lions should be allowed, but we note that a small minority strongly agreed to killing. A large majority of respondents agreed that more people need to be given information about lions. Respondents mentioned spotted hyaena and leopard as the main predators on all livestock followed by jackal (shoats) and lion (mainly cattle). The impact of depredation on livestock mortality was nearly twice that of disease. Our results strongly suggest that lion densities are low and may have substantially decreased in Awash, Nechisar, Chebera-Churchura, and Mago National Parks and in Kaffa Biosphere Reserve due to conflict, habitat loss and especially ineffective protection. Anecdotal information suggests that lions are widespread but rare and that there is no stronghold in Ethiopia. Considering the unique evolutionary background of Ethiopia as the bridge between Central and East African lion populations, and the significant role of the lion in Ethiopian history and culture, we argue that more emphasis should be given to the protection of prioritized lion populations.


2019 ◽  
Vol 12 (3) ◽  
pp. 133-166 ◽  
Author(s):  
Alexander Gradel ◽  
Gerelbaatar Sukhbaatar ◽  
Daniel Karthe ◽  
Hoduck Kang

The natural conditions, climate change and socio-economic challenges related to the transformation from a socialistic society towards a market-driven system make the implementation of sustainable land management practices in Mongolia especially complicated. Forests play an important role in land management. In addition to providing resources and ecosystem functions, Mongolian forests protect against land degradation.We conducted a literature review of the status of forest management in Mongolia and lessons learned, with special consideration to halting deforestation and degradation. We grouped our review into seven challenges relevant to developing regionally adapted forest management systems that both safeguard forest health and consider socio-economic needs. In our review, we found that current forest management in Mongolia is not always sustainable, and that some practices lack scientific grounding. An overwhelming number of sources noticed a decrease in forest area and quality during the last decades, although afforestation initiatives are reported to have increased. We found that they have had, with few exceptions, only limited success. During our review, however, we found a number of case studies that presented or proposed promising approaches to (re-)establishing and managing forests. These studies are further supported by a body of literature that examines how forest administration, and local participation can be modified to better support sustainable forestry. Based on our review, we conclude that it is necessary to integrate capacity development and forest research into holistic initiatives. A special focus should be given to the linkages between vegetation cover and the hydrological regime.


1988 ◽  
Vol 27 (2) ◽  
pp. 217-218
Author(s):  
Luther Tweeten

The authors describe how Pakistan has grappled with land reform, surely one of the most intractable and divisive issues facing agriculture anywhere. The land-tenure system at independence in 1947 included a high degree of land ownership concentration, absentee landlordism, insecurity of tenant tenure, and excessive rent. Land reform since 1947 focused on imposition of ceilings on landholding, distribution of land to landless tenants and small owners, and readjustments of contracts to improve the position of the tenant. These reformist measures have removed some but by no means all of the undesirable characteristics of the system. The authors list as well as present a critique of the reports of five official committees and commissions on land reform. The reports highlight the conflicts and ideologies of the reformers. The predominant ideal of the land reformers is a system of peasant proprietorship although some reformers favoured other systems such as communal farming and state ownership of land, and still others favoured cash rents over share rents. More pragmatic reformers recognized that tenancy is likely to be with Pakistan for the foreseeable future and that the batai (sharecropping) arrangement is the most workable system. According to the editors, the batai system can work to the advantage of landlord and tenant if the ceilings on landholding can be sufficiently lowered (and enforced), the security of the tenant is ensured, and the tenant has recourse to the courts for adjudication of disputes with landlords. Many policy-makers in Pakistan have come to accept that position but intervention by the State to realize the ideal has been slow. The editors conclude that" ... the end result of these land reforms is that they have not succeeded in significantly changing the status quo in rural Pakistan" (p. 29).


Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4423
Author(s):  
Marco A. Castro-Rojas ◽  
Yadira I. Vega-Cantu ◽  
Geoffrey A. Cordell ◽  
Aida Rodriguez-Garcia

Glass ionomer cements and resin-based composites are promising materials in restorative dentistry. However, their limited mechanical properties and the risk of bulk/marginal fracture compromise their lifespan. Intensive research has been conducted to understand and develop new materials that can mimic the functional behavior of the oral cavity. Nanotechnological approaches have emerged to treat oral infections and become a part of scaffolds for tissue regeneration. Carbon nanotubes are promising materials to create multifunctional platforms for dental applications. This review provides a comprehensive survey of and information on the status of this state-of-the-art technology and describes the development of glass ionomers reinforced with carbon nanotubes possessing improved mechanical properties. The applications of carbon nanotubes in drug delivery and tissue engineering for healing infections and lesions of the oral cavity are also described. The review concludes with a summary of the current status and presents a vision of future applications of carbon nanotubes in the practice of dentistry.


2004 ◽  
Vol 48 (2) ◽  
pp. 268-270 ◽  
Author(s):  
Jon C. Lovett

At the 1999 International Botanical Congress held in St Louis, Missouri, the President of the Congress, Dr Peter Raven, presented a keynote address emphasizing the importance of plants to human existence and underlined concerns that the Earth is undergoing a human-induced extinction crisis. One of the resolutions of the congress was to establish a new co-ordinating body associated with the United Nations to monitor the status of plants throughout the world and take steps to conserve them. The resolutions were followed up with a meeting in Gran Canaria on 3–4 April, 2000 when leading botanists met to formulate a declaration which could be taken forward to the fifth Conference of the Parties (CoP5) to the Convention on Biological Diversity held in Nairobi in May 2000. CoP5 recognized that plant diversity is a common concern of humankind and an essential resource for the planet, with as many as two-thirds of the world's plant species in danger of extinction, and proposed that at the sixth meeting of the Conference of the Parties (CoP6) the establishment of a global strategy for plant conservation should be considered. A strategy with 16 targets was presented and adopted at the CoP6 meeting held in The Hague in April 2002. These targets differ from the normal approach adopted in the Convention on Biological Diversity of using general principles that can be interpreted by national policy, in that they are quantified.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Agrippa Madoda Dwangu ◽  
Vimbi Petrus Mahlangu

PurposeThe purpose of this article is to investigate the effectiveness of accountability mechanisms employed in financial management practices of school principals in the Eastern Cape Provincial Department of Education. The strengths and weaknesses of the systems and mechanisms of the processes to hold school principals accountable are explored in detail in this study. The argument that this article seeks to advance is that accountability of the school principal to the school governing body (SGB) does not yield the best results in terms of efficiency. It creates a loose arrangement in terms of which the school principal takes part in financial mismanagement in schools.Design/methodology/approachData collection was made through semi-structured interviews whose purpose was to draw experiences from SGBs, particularly the finance committees who are in fact the sub-committees of the SGBs; as well as literature review. The finance committee is made up of the chairperson of the SGB, the secretary of the SGB, the treasurer of the SGB, and the financial officer who is a clerk responsible for the keeping and the management of financial records of the school. The process started with semi-structured interviews, then transcribing, coding, developing themes, making meaning of the themes and subsequently developing a principle.FindingsMechanisms employed by schools and the Department of Education to hold principals accountable for their financial management practices fail to make them fully accountable and effectively face the consequences of acts on their part that are illegal and unlawful. The mechanisms need a great deal of overhauling. The argument that this article seeks to advance is that this account of the school principal to the SGB does not yield the best results in terms of efficiency. It creates a loose arrangement in terms of which the school principal easily gets away with a crime when financial mismanagement occurs in the school.Research limitations/implicationsParticipants could possibly not be comfortable and willing, to tell the truth as it is. Participants might have the fear that telling the truth could land them in trouble with the law. Whilst participants were assured by the researchers of their anonymity and the confidentiality of the information given by them, there was no guarantee that the fear of being exposed would subdue completely. There was also a possibility that some participants would not be willing to say the truth as it is for fear of being victimised by other participants for exposing the status quo in their schools.Practical implicationsThe findings and recommendations from this study may be used by the Department of Basic Education as a source of information for policymakers and stakeholders to understand the effectiveness of their mechanisms to ensure the accountability of school principals on issues of financial management. On the basis of this study, policymakers will then be able to revisit their policies for the purpose of strengthening them. The principal is therefore responsible for the day-to-day administration and management of school funds because of this mandatory delegation. However, when things go wrong, it is the SGB that is held liable.Social implicationsSchool principals hold dual accountability in terms of which they are accountable to the employer only in so far as their professional responsibilities are concerned on financial management in the first instance. They are by no means accounting officers in schools. In the second instance, they are fully accountable to the SGB for issues relating to financial management. Section 16A of SASA lists the functions and responsibilities for which the principal as an employee of the Department of Basic Education, and in his official capacity as contemplated in Sections 23(1) and 24(1) (j) of the same Act, is accountable to the head of department (HOD).Originality/valueThe study provides a theoretical and empirical contribution to the existing literature on the effectiveness of the mechanisms employed to ensure the accountability of school principals in their financial management practices in schools. It offers practical recommendations putting in place mechanisms that effectively hold school principals wholly accountable for their financial management practices in schools. Most of the time, it is easy for the principal to get away with a crime even in instances where he or she is called upon to account for alleged financial mismanagement.


2013 ◽  
Vol 40 (1) ◽  
pp. 77 ◽  
Author(s):  
Mitchell B. East ◽  
J. Daren Riedle ◽  
Day B. Ligon

Context Monitoring populations of long-lived species requires continuous long-term efforts. This is especially applicable for species that have experienced declines range-wide. Aims Our study assessed the current status of a population of wild Macrochelys temminckii and compared the present results to those from a survey conducted nearly a decade ago. Methods Trapping in 2010–2011 was conducted on two creeks within the refuge, during the months of May–July. Capture data were compared with data collected by similar methods in 1997–2001. Key results The population structure of M. temminckii was dominated by juveniles, with few large adults or small juveniles detected and a missing size class was evident. Retrospective analysis of 1997–2001 data revealed that the population was likely to be in decline even then, despite high capture rates. Conclusions The M. temminckii population showed significant declines that indicated that the population had experienced stressors of unknown origin. The status of M. temminckii at the refuge is concerning, given the protection afforded this remnant population. Implications Short-term data from 1997–2001 indicated a healthy M. temminckii population, whereas longer-term data showed that the population has declined, resulting in significant demographic changes. Continued monitoring will be necessary to develop management recommendations and track the impact of implemented management practices. Longer-term monitoring of long-lived vertebrates is required to identify population trends.


2009 ◽  
Vol 18 (2) ◽  
pp. 127 ◽  
Author(s):  
Andrew C. Edwards ◽  
Jeremy Russell-Smith

The paper examines the application of the ecological thresholds concept to fire management issues concerning fire-sensitive vegetation types associated with the remote, biodiversity-rich, sandstone Arnhem Plateau, in western Arnhem Land, monsoonal northern Australia. In the absence of detailed assessments of fire regime impacts on component biota such as exist for adjoining Nitmiluk and World Heritage Kakadu National Parks, the paper builds on validated 16-year fire history and vegetation structural mapping products derived principally from Landsat-scale imagery, to apply critical ecological thresholds criteria as defined by fire regime parameters for assessing the status of fire-sensitive habitat and species elements. Assembled data indicate that the 24 000 km2 study region today experiences fire regimes characterised generally by high annual frequencies (mean = 36.6%) of large (>10 km2) fires that occur mostly in the late dry season under severe fire-weather conditions. Collectively, such conditions substantially exceed defined ecological thresholds for significant proportions of fire-sensitive indicator rain forest and heath vegetation types, and the long-lived obligate seeder conifer tree species, Callitris intratropica. Thresholds criteria are recognised as an effective tool for informing ecological fire management in a variety of geographic settings.


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