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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
52

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
53

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
54

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
55

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
56

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
57

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
58

Evaluating recovery planning for threatened species in Australia

Alejandro Ortega Argueta Unknown Date (has links)
Loss of biodiversity is a major environmental issue in Australia. In response the Commonwealth Government has developed a national list of threatened species and prepared recovery plans under the provisions of the Commonwealth Environmental Protection and Biodiversity Conservation Act 1999 (EPBCA). However, knowledge on the appropriateness and effectiveness of those conservation and management schemes is limited. The aim of the thesis was to conduct an evaluation of recovery planning to assess its appropriateness as a conservation and management instrument, and investigate how legislative, institutional and organisational factors influence its implementation. Four research questions were addressed: 1) How does recovery planning operate in regard to legislative, jurisdictional and institutional aspects? 2) Do recovery plans comply with legislative requirements and coherent conservation planning? 3) What management factors have most influence on implementation of recovery plans at state level? and 4) What modifications could be made to the management system to improve implementation of recovery plans? The major approaches considered in this study were policy evaluation and systems analysis. Both approaches were incorporated in a framework of the thesis to construct a conceptualisation of the threatened species management system as a model. This allowed examining its structure, key elements and dynamics, and evaluation of its performance and effectiveness. Methods comprised interviews, content analysis of program documentation, qualitative and quantitative analysis of recovery plans, experts’ workshops, and systems analysis and modelling. The major set of quantitative data came from a database which incorporated content attributes of 236 recovery plans. Taking into account the Australian legislative requirements for preparing recovery plans, key content attributes were selected for assessing the degree of compliance. Internal consistency of plans was also assessed as a complementary measure of coherent management planning. Measures of internal consistency were: consistency between gaps of scientific information versus prescribed actions calling for research; consistency between major threatening processes versus prescription of threat abatement actions; and consistency between recovery objectives versus performance criteria for measuring achievement of objectives. Another component of the thesis was the construction of a model of the management system of threatened species. This theoretical model was conceptualised from opinions of experts and stakeholders occupying key roles in threatened species management. The model incorporated social aspects of management such as institutional and organisational factors influencing planning and the implementation of recovery plans. The model was built using a Bayesian belief network to assess the most influential components (issues, recovery strategies, and management requirements) on the likely outcomes. Expert opinions also assisted to identify gaps in the management system and formulate new management strategies. Finally, modelling allowed assessing different management scenarios and identified the key components that would improve recovery planning. Major findings of the investigation revealed that: 1) Although the three levels of government in Australia (Commonwealth, state/territory and local) are involved in recovery planning, it is the states/territories that have the most active role in preparing and operating recovery plans. State and territory-based legislation, policy and conservation strategies shape the form in which recovery planning is performed nationwide, as they are responsible for implementing 89% of national plans; 2) Overall compliance of plans with legislative requirements was adequate; although improvement is required in establishing a monitoring and evaluation framework. Overall, internal consistency of plans was also adequate in addressing threats and formulating research for knowledge gaps; but consistency was poor regarding the response to some threatening processes and the establishment of recovery criteria; 3) According to experts/stakeholders, the most influential issues relevant to the implementation of recovery plans are: coordination across Commonwealth, state and territory agencies, inconsistency of strategies and programs across jurisdictions, addressing management of threatened species on private land, incorporation of science into recovery planning, prioritising schemes for conservation action, and funding for the implementation of plans; 4) The recovery planning strategy may be improved by establishing mandatory monitoring and review reports; creating a national forum on threatened species; designing an appropriate insurance regime for volunteers; and establishing a national management information system.
59

Biologia reprodutiva, seleção de sítios de nidificação e sucesso reprodutivo em aves campestres de cerrado na Estação Ecológica de Itirapina, SP / Breeding biology, nest-side selection and reproductive sucess in cerrado grassland birds in the Ecological Station of Itirapina, SP

Freitas, Maikon de Souza 07 August 2014 (has links)
As regiões tropicais têm sofrido drásticas modificações na paisagem ao longo do tempo. No Brasil, o bioma Cerrado é considerado um dos mais vulneráveis devido à crescente destruição ocasionada pela ação antrópica, sendo o bioma mais ameaçado do mundo. Restam apenas 20% da cobertura original do Cerrado em todo o país e somente 2,2% estão inseridos em áreas protegidas. Com essa crítica situação de conservação, além da rápida destruição de seus hábitats naturais e também por possuir uma elevada riqueza biológica, o Cerrado foi incluso entre os 25 hotspots mundiais. A redução excessiva das áreas nativas pode provocar a extinção de muitas espécies de aves, principalmente espécies especialistas de áreas campestres. Em aves, a seleção de hábitat é entendida como um processo hierárquico de respostas comportamentais que influenciam a sobrevivência e a aptidão dos indivíduos. A diminuição de sítios adequados para a nidificação no ambiente pode ser um fator crítico que determina a extinção local de muitas espécies de aves. Outro aspecto de extrema importância, é a compreensão de fatores relacionados à história de vida das espécies. Descrições detalhadas sobre a biologia reprodutiva da avifauna são de fundamental importância, ainda mais que muitas das espécies de aves neotropicais ainda não possuem descrições sobre informações básicas de suas histórias de vidas. Diante disso, visamos no capítulo I descrever a biologia reprodutiva de Alecturus tricolor e Sporophila pileata, dois Passeriformes dos quais muito pouco se sabe sobre aspectos fundamentais das suas histórias de vida. No capítulo II visamos entender como algumas aves de fitofisionomias campestres de cerrado selecionam o microhábitat para a nidificação e como essas escolhas podem influenciar no sucesso reprodutivo dessas espécies / Tropical regions have undergone drastic changes in the landscape over time. In Brazil, the Cerrado is considered one of the most vulnerable biomes due to increased destruction caused by human action; it is the most threatened biome in the world. Only 20% of the original cover of the Cerrado remains across the country and only 2.2% is included in protected areas. With this critical conservation situation, the rapid destruction of their natural habitats along with its high biological richness, the Cerrado has been included among the 25 global \"hotspots\". Excessive reduction of native areas can cause the extinction of many bird species, principally species specific to grassland areas. Among birds, the habitat selection is understood as a hierarchical process of behavioral responses that influence the survival and fitness of individuals. The reduction of suitable nesting sites in the environment may be a critical factor that determines the local extinction of many species of birds. Another very important aspect is the understanding of factors related to the life history of the species. Detailed descriptions of the reproductive biology of birds are of fundamental importance, even more so since many of neotropical birds still do not have descriptions of basic information of their life histories. Therefore, we aim in chapter I to describe the reproductive biology of tricolor Alecturus tricolor and Sporophila pileata, two Passeriformes of which very little is known about key aspects of their life histories. In Chapter II we aim to understand how some birds of grassland physiognomies of the cerrado select the microhabitats for nesting and how these choices can influence the reproductive success of these species
60

Combining species distribution modelling and environmental perceptions to support sustainable strategies for Amazon-nut (Bertholletia excelsa Bonpl.) planting and conservation / Combinando a modelagem de distribuição de espécies e percepções ambientais para fundamentar estratégias sustentáveis de plantio e conservação da Castanha-da-Amazônia (Bertholletia excelsa Bonpl.)

Daiana Carolina Monteiro Tourne 30 November 2018 (has links)
The amazon ecosystems have been compromised by historical forms of occupation and land-use causing habitat loss and forest fragmentation. These anthropogenic disturbances associated to climate changes have direct consequences on the distribution of species and their in situ persistence. Currently, 76 of 14.003 plants taxonomically identified in the Amazon have been listed by the Brasilian Ministry of the Environment as threatened species, though we believe this number to be much bigger in the reality. Among them, Amazon-nut (Bertholletia excelsa), a native tree species, national and internationally known for its cultural, social-economic and nutritional value has been classified as vulnerable. For developping of public policy turned to its management and conservation is fundamental to know the percentage of habitat available, as well as the nature and scale of threats to this environments. Species distribution modelling is an increasingly important tool for predicting habitat suitability and for understanding species environmental tolerances, but has been rarely used in Brazil, especially for Amazonian species. This study aimed to model the potential distribution of B. excelsa in the Amazon biome and to know the factors that control its distribution. To enhance our analysis, case studies were carried out with stakeholders aiming to know their perceptions about the main threats to the species and potential solutions.This research project was based on two hypotheses: (i) There is a suitable habitat to Amazon-nut which require different objectives for conservation and planting; (ii) If the local people are aware of the species vulnerability, they are able to point out the factors that cause this condition. In the chapter 1, habitat was investigated using MAXENT algoritm. We collected 3,325 Amazon-nut records and organized one hundred-and-two environmental variables into climatic, edaphic and geophysical categories at a spatial resolution of 30 arcs-second (~1km). Multi-colinearity between variables was dealt with multivariate statistics associated to expert\'s knowledge, and presence data biased with the spatial filtering. The best model was selected adopting quantitative metrics and visual examination. The most importante biophysic variables we identified were: altitude (m), coarse soil fragments (<2mm) and clay (%). Finaly, the best model indicated 2.3 million km2 i.e., 32% of the Amazon basin has potential for B. excelsa to grow. In the chapter 2, the factors that affect Amazon-nut conservation and planting were discussed with local communities, public managers and researchers, totalyzing 203 participants. Focus groups, individual interviews and questionaire techniques were used to gather information. Data were categorized and the perceptions among stakeholders compared using quali-quantitative analyses. We found that there are currently 36 problems responsible for the species vulnerability and 72% of them belong to environmental and political contexts. Deforestation was the main problem mentioned, followed by fruit depreciation, control failures and lack of organization in the communities. For three groups of stakeholders, the main solutions were related to political context. The results obtained in this study contribute to increase ecological knowledge on the species, to demonstrate the complexity of sustainable use in the Amazon and to guide decisions makers in the selection of priority areas for conservation and potential planting. / Os ecossistemas amazônicos vêm sendo impactados ao longo dos anos por diversos processos de uso e ocupação do território, os quais têm resultado em perdas de habitats e na fragmentação da paisagem nativa. Essas perturbações antrópicas, associadas às mudanças climáticas, têm consequências diretas sobre a distribuição e persistência das espécies in situ. Das 14.003 plantas da Amazônia reconhecidas taxonomicamente, somente 76 estão atualmente listadas pelo Ministério do Meio Ambiente brasileiro como espécies ameaçadas, embora acredita-se que esse número seja muito maior. Entre elas, a Castanha-da-Amazônia (Bertholletia excelsa), uma espécie de árvore nativa, reconhecida nacional e internacionalmente pela sua importância cultural, socioeconômica e nutricional, encontra-se classificada como vulnerável. Para nortear políticas públicas na conservação e no plantio dessa espécie, um profundo entendimento sobre o habitat disponível para ela, bem como a origem e escala das ameaças à esse ambiente, é necessário. A modelagem de distribuição de espécies é uma ferramenta que oferece predições espaciais robustas sobre a adequabilidade de habitat e tolerância das espécies, mas tem sido pouco utilizada no Brasil, sobretudo para espécies Amazônicas. Nesse contexto, esse estudo objetivou modelar a distribuição potencial da B. excelsa no bioma Amazônia, bem como conhecer os fatores que controlam sua distribuição. Para aprofundar essas análises, estudos de caso foram realizados com o objetivo de conhecer a percepção de atores sociais envolvidos com a espécie sobre as principais ameaças e potenciais soluções. Essa tese baseou-se em duas hipóteses: (i) existem áreas com maior adequabilidade para a ocorrência da Castanha-da-Amazônia que demandam diferentes objetivos, para conservação e para o plantio; (ii) se a população local é conciente da vulnerabilidade da espécie, ela pode indicar os fatores que geram essa condição. No capítulo 1, o habitat foi investigado por meio de simulações usando o algoritmo MAXENT. Um total de 3.325 ocorrências e 102 variáveis ambientais foram obtidas, e posteriormente organizadas por categorias climática, edáfica e geofísica. A resolução espacial escolhida foi de 30 arc-segundo (~1km). A multi-colinearidade entre as variáveis foi reduzida por meio da estatística multivariada associada ao conhecimento de especialistas, e as tendências nas ocorrência foram tratadas através da filtragem espacial. O melhor modelo foi selecionado usando métricas quantitativas e examinações visuais. As variáveis biofísicas mais importantes encontradas foram altitude (m), solos com fragmentos grosseiros (<2mm) e argila (%). Por fim, o modelo indicou que 2.3 million km2 i.e., 32% da região amazônica é apropriado para B. excelsa crescer. No capítulo 2, os fatores que afetam a conservação e o plantio da espécie foram discutidos com comunidades, gestores e pesquisadores locais, totalizando 203 participantes. As técnicas de discussão em grupo focal, entrevistas individuais e questionários foram utilizadas para a coleta das informações. Os dados foram categorizados e as opiniões entre os diferentes grupos comparadas utilizando análises quali-quantitativas. Concluiu-se que atualmente existem 36 problemas responsáveis pela vulnerabilidade da espécie, dos quais 72% encontram-se no contexto ambiental e político. O desmatamento foi a principal forçante apontada, seguida pela desvalorização do fruto, falhas na fiscalização e falta de organização nas comunidades. Para os três grupos, as principais soluções foram voltadas para o contexto político. Os resultados obtidos nesse estudo contribuiem para aumentar o conhecimento ecológico da espécie, para demostrar a complexidade do uso sustentável na Amazônia, e orientar tomadores de decisão na seleção de áreas prioritárias para conservação e potenciais para o plantio.

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