title: The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys

authors: Magalhães, Catarina M.

subjects: archaea

abstract: The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments. In this study, we investigated the diversity and abundance of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in four McMurdo Dry Valleys with highly variable soil geochemical properties and climatic conditions: Miers Valley, Upper Wright Valley, Beacon Valley and Battleship Promontory. The bacterial communities of these four Dry Valleys have been examined previously, and the results suggested that the extremely localized bacterial diversities are likely driven by the disparate physicochemical conditions associated with these locations. Here we showed that AOB and AOA amoA gene diversity was generally low; only four AOA and three AOB operational taxonomic units (OTUs) were identified from a total of 420 AOA and AOB amoA clones. Quantitative PCR analysis of amoA genes revealed clear differences in the relative abundances of AOA and AOB amoA genes among samples from the four dry valleys. Although AOB amoA gene dominated the ammonia-oxidizing community in soils from Miers Valley and Battleship Promontory, AOA amoA gene were more abundant in samples from Upper Wright and Beacon Valleys, where the environmental conditions are considerably harsher (e.g., extremely low soil C/N ratios and much higher soil electrical conductivity). Correlations between environmental variables and amoA genes copy numbers, as examined by redundancy analysis (RDA), revealed that higher AOA/AOB ratios were closely related to soils with high salts and Cu contents and low pH. Our findings hint at a dichotomized distribution of AOA and AOB within the Dry Valleys, potentially driven by environmental constraints.

text: The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments. In this study, we investigated the diversity and abundance of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in four McMurdo Dry Valleys with highly variable soil geochemical properties and climatic conditions: Miers Valley, Upper Wright Valley, Beacon Valley and Battleship Promontory. The bacterial communities of these four Dry Valleys have been examined previously, and the results suggested that the extremely localized bacterial diversities are likely driven by the disparate physicochemical conditions associated with these locations. Here we showed that AOB and AOA amoA gene diversity was generally low; only four AOA and three AOB operational taxonomic units (OTUs) were identified from a total of 420 AOA and AOB amoA clones. Quantitative PCR analysis of amoA genes revealed clear differences in the relative abundances of AOA and AOB amoA genes among samples from the four dry valleys. Although AOB amoA gene dominated the ammonia-oxidizing community in soils from Miers Valley and Battleship Promontory, AOA amoA gene were more abundant in samples from Upper Wright and Beacon Valleys, where the environmental conditions are considerably harsher (e.g., extremely low soil C/N ratios and much higher soil electrical conductivity). Correlations between environmental variables and amoA genes copy numbers, as examined by redundancy analysis (RDA), revealed that higher AOA/AOB ratios were closely related to soils with high salts and Cu contents and low pH. Our findings hint at a dichotomized distribution of AOA and AOB within the Dry Valleys, potentially driven by environmental constraints.

year: 2014-09-30

title: Incorporation of Environmental Issues into Banks’ Lending Decisions

authors: Mazahrih, Basman Jalal Saeed

subjects: lending decisions

abstract: This thesis examines commercial banks’ practice pertaining to the integration of environmental issues into their lending activities. There is evidence that over the last few decades some banks have considered the environmental impact of borrower activities as part of credit risk assessment and management. A number of academic surveys have identified a positive correlation between the environmental and financial performance of companies. These developments influence the level of bank support for responsible environmental management. For most commercial banks loans are a large percentage of assets. Hence appropriate management of loans is a priority for bank management, shareholders and other interested people. Traditionally, banks use financial instruments to measure the efficiency of their lending decisions and to ensure that payments are made on time. However, each lending operation may involve environmental risks. Adverse environmental outcomes may result in a reduction in the borrowers’ repayment capacity, a decline in the value of the collateral, a direct bank liability for environmental damage caused by its borrowing clients and potential risks to the bank’s reputation. For each of these risks the bank can determine the likelihood, extent, cost and impact should the damage actually occur. Bank lending occurs in a wider economic and social context of strategic importance for banks. Society’s quest for sustainable development involves the creation of new financing markets, such as markets for sustainable energy, water purification equipment, products for the financing of companies’ climate policies and groundbreaking technology. Banks can fulfil the role of a traditional financial intermediary or can step into this growing market to develop specific new products such as environmental loans. This market is rich in challenges and opportunities. Hence, it is crucial that banks have appropriate indicators to help them and stakeholders monitor performance. Against this background, this study investigates the practice of incorporating environmental issues into banks’ lending decisions, utilizing Westpac as a case study. Qualitative and quantitative research approaches were adopted. A mixed method of data collection was used, consisting of an analysis of annual reports, semi-structured interview and a survey questionnaire. The Westpac study is used to develop and test an environmental sustainability framework to analyse the incorporation of environmental issues into lending decisions by financial institutions. The results from the research provide some evidence that Westpac incorporates environmental issues into lending decisions and is aware of environmental risks and opportunities. At the operational level, the bank assesses environmental risks before approving loans and finances projects with high environmental benefits. With regard to motivational drivers, the findings indicate that the bank’s incorporation of environmental issues into lending decisions is motivated by multiple reasons: managerial, financial and environmental. However, the environmental information reported was not consistently and sufficiently communicated to stakeholders. Further, the results from the research reveal that bank management should effectively consider environmental issues when making lending decisions and that they should take specific actions to have such issues effectively implemented. Although banks are motivated by a variety of factors, financial issues were considered the most important factor when banks are making lending decisions. This study also reveals that respondents did not know about bank effectiveness in addressing environmental issues when making lending decisions. Moreover, people who are likely to be better informed or knowledgeable about environmental issues were also found to have a low level of knowledge in this regard. Furthermore, the majority of respondents tend not to be satisfied with the interaction between banks and both the public and the New Zealand government. The literature to date suggests there is increasing stakeholder pressure on businesses to act with environmental responsibility, but this result suggests challenges still remain. A comparison of Westpac and HSBC stakeholder reports revealed that HSBC provided more appropriate environmental information than Westpac regarding their lending activities. The comparison reveals that there is a shift in how banks view the consideration of environmental performance as material to users of the annual reports. However, there is a gap in the information provided probably due to the voluntary nature of sustainability disclosures in annual reports. Thus, there is a need for improvement relating to the content and quality of environmental reporting. This research proposes an environmental sustainability framework, with specific focus on the lending process as a guideline for bank management, policy makers and other interested people. It facilitates effective measurement of environmental performance in two major areas: management and operations, and motivations. The framework includes indicators and processes to improve bank financial and environmental performance. The key findings of this study are instructive. Consideration of environmental issues when making lending decisions is important to banks, borrowers, the environment and stakeholders in general. Environmental risks, opportunities and the positive relationship between the environmental performance and financial performance give motivation to integrate environmental issues into lending activities. This study identified that Westpac and commercial banks more generally have an opportunity to provide further and consistent evidence concerning their managerial and operational performance and drivers when making lending decisions. Such actions would provide stakeholders with more accurate views on the bank’s environmental performance. It would also facilitate the bank’s ability to respond sufficiently and transparently to the international agreements and initiatives the bank is signatory to and/or a member of.

text: Incorporation of Environmental Issues into Banks’ Lending Decisions This thesis examines commercial banks’ practice pertaining to the integration of environmental issues into their lending activities. There is evidence that over the last few decades some banks have considered the environmental impact of borrower activities as part of credit risk assessment and management. A number of academic surveys have identified a positive correlation between the environmental and financial performance of companies. These developments influence the level of bank support for responsible environmental management. For most commercial banks loans are a large percentage of assets. Hence appropriate management of loans is a priority for bank management, shareholders and other interested people. Traditionally, banks use financial instruments to measure the efficiency of their lending decisions and to ensure that payments are made on time. However, each lending operation may involve environmental risks. Adverse environmental outcomes may result in a reduction in the borrowers’ repayment capacity, a decline in the value of the collateral, a direct bank liability for environmental damage caused by its borrowing clients and potential risks to the bank’s reputation. For each of these risks the bank can determine the likelihood, extent, cost and impact should the damage actually occur. Bank lending occurs in a wider economic and social context of strategic importance for banks. Society’s quest for sustainable development involves the creation of new financing markets, such as markets for sustainable energy, water purification equipment, products for the financing of companies’ climate policies and groundbreaking technology. Banks can fulfil the role of a traditional financial intermediary or can step into this growing market to develop specific new products such as environmental loans. This market is rich in challenges and opportunities. Hence, it is crucial that banks have appropriate indicators to help them and stakeholders monitor performance. Against this background, this study investigates the practice of incorporating environmental issues into banks’ lending decisions, utilizing Westpac as a case study. Qualitative and quantitative research approaches were adopted. A mixed method of data collection was used, consisting of an analysis of annual reports, semi-structured interview and a survey questionnaire. The Westpac study is used to develop and test an environmental sustainability framework to analyse the incorporation of environmental issues into lending decisions by financial institutions. The results from the research provide some evidence that Westpac incorporates environmental issues into lending decisions and is aware of environmental risks and opportunities. At the operational level, the bank assesses environmental risks before approving loans and finances projects with high environmental benefits. With regard to motivational drivers, the findings indicate that the bank’s incorporation of environmental issues into lending decisions is motivated by multiple reasons: managerial, financial and environmental. However, the environmental information reported was not consistently and sufficiently communicated to stakeholders. Further, the results from the research reveal that bank management should effectively consider environmental issues when making lending decisions and that they should take specific actions to have such issues effectively implemented. Although banks are motivated by a variety of factors, financial issues were considered the most important factor when banks are making lending decisions. This study also reveals that respondents did not know about bank effectiveness in addressing environmental issues when making lending decisions. Moreover, people who are likely to be better informed or knowledgeable about environmental issues were also found to have a low level of knowledge in this regard. Furthermore, the majority of respondents tend not to be satisfied with the interaction between banks and both the public and the New Zealand government. The literature to date suggests there is increasing stakeholder pressure on businesses to act with environmental responsibility, but this result suggests challenges still remain. A comparison of Westpac and HSBC stakeholder reports revealed that HSBC provided more appropriate environmental information than Westpac regarding their lending activities. The comparison reveals that there is a shift in how banks view the consideration of environmental performance as material to users of the annual reports. However, there is a gap in the information provided probably due to the voluntary nature of sustainability disclosures in annual reports. Thus, there is a need for improvement relating to the content and quality of environmental reporting. This research proposes an environmental sustainability framework, with specific focus on the lending process as a guideline for bank management, policy makers and other interested people. It facilitates effective measurement of environmental performance in two major areas: management and operations, and motivations. The framework includes indicators and processes to improve bank financial and environmental performance. The key findings of this study are instructive. Consideration of environmental issues when making lending decisions is important to banks, borrowers, the environment and stakeholders in general. Environmental risks, opportunities and the positive relationship between the environmental performance and financial performance give motivation to integrate environmental issues into lending activities. This study identified that Westpac and commercial banks more generally have an opportunity to provide further and consistent evidence concerning their managerial and operational performance and drivers when making lending decisions. Such actions would provide stakeholders with more accurate views on the bank’s environmental performance. It would also facilitate the bank’s ability to respond sufficiently and transparently to the international agreements and initiatives the bank is signatory to and/or a member of.

year: 2011

title: Keynote Address: Barriers and incentives to Māori participation in the profession of psychology

authors: Levy, Michelle Patricia

subjects: Maori

abstract: It is well known that Māori are overrepresented
within the client group of
psychologists. Despite ongoing attempts to
recruit and retain more Māori within the
discipline of psychology, the numbers of
Māori psychologists continues to remain
low, raising serious concerns about the
ability of the profession to effectively meet
the needs of its clientele. The objectives of this study were to
identify the, barriers to, and incentives for improving the recruitment and retention
of Māori in the profession of
psychology and Māori to gain and maintain registration
as psychologists. This paper is
based on the full report provided to the
New Zealand Psychologists’ Board. The findings in this study
clearly demonstrate that in order to attract
Māori to participate in psychology, the
majority of environments need to change
substantially. It is simply not enough for
organisations, whether they are educational, professional, or service delivery agencies,
to identify the need for more Māori
psychologists, yet still fail to commit to,
and actively engage in, altering long
identified environmental factors that are
barriers to Māori participation.

text: Keynote Address: Barriers and incentives to Māori participation in the profession of psychology It is well known that Māori are overrepresented
within the client group of
psychologists. Despite ongoing attempts to
recruit and retain more Māori within the
discipline of psychology, the numbers of
Māori psychologists continues to remain
low, raising serious concerns about the
ability of the profession to effectively meet
the needs of its clientele. The objectives of this study were to
identify the, barriers to, and incentives for improving the recruitment and retention
of Māori in the profession of
psychology and Māori to gain and maintain registration
as psychologists. This paper is
based on the full report provided to the
New Zealand Psychologists’ Board. The findings in this study
clearly demonstrate that in order to attract
Māori to participate in psychology, the
majority of environments need to change
substantially. It is simply not enough for
organisations, whether they are educational, professional, or service delivery agencies,
to identify the need for more Māori
psychologists, yet still fail to commit to,
and actively engage in, altering long
identified environmental factors that are
barriers to Māori participation.

year: 2003