| Acknowledgments |
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xiii | |
| List of acronyms and abbreviations |
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xiv | |
| Glossary |
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xv | |
| Introduction |
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xxv | |
| Part I Epidemiological Background |
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1 | (62) |
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1 Conservation biology and parasitism |
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3 | (23) |
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1.1 What is conservation biology? |
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3 | (1) |
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3 | (1) |
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4 | (1) |
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1.4 Drivers of extinction |
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5 | (5) |
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1.4.1 The role of parasites and pathogens in extinction |
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6 | (1) |
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1.4.2 Possible mechanisms of parasite-induced extinction/endangerment |
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7 | (2) |
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1.4.3 Detecting infectious disease threats to populations or communities |
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9 | (1) |
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1.5 Endangerment and conservation of parasites |
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10 | (9) |
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1.5.1 Are parasites threatened? |
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10 | (1) |
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1.5.2 Why conserve parasites-Ethical reasons |
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11 | (1) |
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1.5.3 Why conserve parasites-Applied reasons |
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12 | (3) |
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1.5.4 How do parasites become endangered? |
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15 | (1) |
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1.5.5 What are the effects of conservation management activities on parasite communities? |
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16 | (1) |
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1.5.6 Which parasite species are most likely to become endangered? |
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17 | (2) |
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19 | (7) |
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2 Disease epidemiology in natural systems |
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26 | (14) |
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26 | (2) |
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2.2 Transmission and parasite life cycles |
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28 | (6) |
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2.2.1 Transmission in single host-single parasite infections |
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28 | (2) |
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2.2.2 Transmission in multiple host species-single parasite infection |
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30 | (1) |
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2.2.3 The basic reproductive number R0 |
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30 | (3) |
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2.2.4 Natural selection and host-parasite interactions |
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33 | (1) |
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2.3 Factors determining outcome of infection |
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34 | (6) |
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34 | (1) |
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35 | (1) |
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2.3.3 Environmental effects |
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36 | (4) |
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3 Anthropogenic effects and wildlife diseases |
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40 | (23) |
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40 | (1) |
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3.2 Human introduction of pathogens or hosts |
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40 | (6) |
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3.2.1 Introduction of a novel disease agent into a naive population |
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41 | (3) |
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3.2.2 Introduction of naive hosts to an area where an indigenous pathogen exists |
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44 | (1) |
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3.2.3 Introduction of a host that alters the ecology of an indigenous disease |
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44 | (2) |
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3.3 Interactions between habitat degradation/loss and infectious disease |
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46 | (3) |
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3.3.1 Parasites/pathogens modifying habitat suitability |
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46 | (1) |
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3.3.2 Effects of habitat degradation/fragmentation on parasites and pathogens |
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47 | (2) |
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49 | (1) |
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3.4 Parasitism and predation |
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49 | (4) |
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3.4.1 Trophic transmission |
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51 | (1) |
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3.4.2 Effects of predators on herd health |
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52 | (1) |
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3.4.3 Combined effects of predation and parasitism on host population size and stability |
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53 | (1) |
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3.5 Climate change and wildlife disease |
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53 | (12) |
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3.5.1 Climate change and vector-borne diseases |
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54 | (9) |
| Part II Acquisition of Field Data |
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63 | (68) |
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4 Sampling, experimental design, and statistical analysis |
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65 | (11) |
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65 | (1) |
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4.2 The three Rs of sampling and study design: Representativeness, replication, and randomness |
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65 | (5) |
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65 | (1) |
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66 | (1) |
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67 | (3) |
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70 | (2) |
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70 | (1) |
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4.3.2 The Akaike Information Criterion |
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71 | (1) |
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72 | (1) |
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73 | (3) |
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5 Capture, restraint, and euthanasia of target species |
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76 | (21) |
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76 | (1) |
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5.2 Are captured animals representative of the population? |
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77 | (2) |
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5.3 Are biological samples collected from study animals representative of the normal physiological state and not unduly influenced by the capture procedure? |
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79 | (4) |
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5.4 Will capture affect the study animal's subsequent behavior, activity, or survival? |
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83 | (1) |
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5.5 Are sampling frequency and intensity sufficient to accurately represent host population demographics and the dynamics of the disease? |
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83 | (3) |
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5.6 Will the capture technique endanger the investigator? |
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86 | (2) |
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5.7 How can the capturing/sampling process be improved? |
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88 | (1) |
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5.8 Euthanasia (humane killing) |
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89 | (1) |
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5.9 Capture considerations for various categories of vertebrate hosts |
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90 | (7) |
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90 | (1) |
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90 | (1) |
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91 | (1) |
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92 | (5) |
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6 Disease and agent detection |
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97 | (14) |
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97 | (1) |
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6.2 Detecting infectious agents in individuals |
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97 | (2) |
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6.3 Detecting infectious agents at the population level |
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99 | (2) |
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6.4 Detecting disease at the individual or population level |
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101 | (2) |
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6.5 Confirming a cause-effect relationship between infection and disease |
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103 | (8) |
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6.5.1 Basic principles and methodological challenges |
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103 | (2) |
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6.5.2 Experimental studies |
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105 | (1) |
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6.5.3 Observational studies |
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106 | (5) |
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7 The environmental context of wildlife disease |
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111 | (12) |
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111 | (1) |
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7.2 Identifying and quantifying the association between environmental features and disease occurrence |
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112 | (3) |
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7.2.1 The importance of scale |
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115 | (1) |
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7.3 Modeling the environmental occurrence of disease |
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115 | (4) |
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7.3.1 Using features of the ecological niche to predict where or when disease will occur |
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117 | (1) |
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7.3.2 Using knowledge of the ecological niche in disease management |
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118 | (1) |
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7.4 Conclusions and summary |
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119 | (4) |
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8 Agent and disease detection-Laboratory methods |
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123 | (8) |
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123 | (1) |
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124 | (2) |
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126 | (2) |
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8.4 Sampling-Postanalysis |
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128 | (3) |
| Part III Modeling and Data Analysis |
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131 | (38) |
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133 | (18) |
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133 | (1) |
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134 | (2) |
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9.2.1 Strategic versus tactical models |
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134 | (1) |
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9.2.2 Deterministic versus stochastic models |
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134 | (1) |
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9.2.3 Microparasite versus macroparasite models |
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135 | (1) |
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136 | (3) |
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9.3.1 Incorporating age structure and time delays |
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138 | (1) |
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139 | (1) |
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9.5 Integral projection models |
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140 | (1) |
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9.6 The basic reproductive number R0 |
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141 | (5) |
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9.6.1 R0 for complex life cycles and multiple hosts |
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141 | (4) |
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9.6.2 R0 for network models |
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145 | (1) |
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9.7 Adding pathogens to population viability analysis models |
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146 | (1) |
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9.8 Individual-based models |
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147 | (1) |
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9.9 Models for spatial spread |
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148 | (3) |
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10 Estimating basic epidemiological parameters |
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151 | (18) |
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151 | (1) |
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10.2 Estimating host population size and infection status |
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151 | (1) |
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10.3 Mortality and fecundity: Basic demographic parameters |
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152 | (3) |
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10.3.1 Estimating pathogen- or parasite-induced mortality |
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152 | (2) |
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154 | (1) |
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10.4 Mark-recapture methods |
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155 | (2) |
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10.5 Quantifying transmission |
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157 | (3) |
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10.5.1 What does one need to estimate and why? |
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157 | (1) |
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10.5.2 Estimating contact rates |
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157 | (1) |
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10.5.3 Estimating the force of infection |
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158 | (1) |
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10.5.4 Multistate mark-recapture methods |
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158 | (2) |
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160 | (3) |
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10.6.1 Direct estimation of R0 for emerging diseases |
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160 | (2) |
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10.6.2 Estimation of R0 for infections at equilibrium |
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162 | (1) |
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10.6.3 Estimating R0 in multiple host systems |
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162 | (1) |
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10.7 Estimating the parameters for spatial spread |
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163 | (1) |
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163 | (6) |
| Part IV Epidemiological Control and Prevention |
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169 | (95) |
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11 Disease management: Introduction and planning |
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171 | (10) |
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11.1 Identifying the problem: Known known |
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171 | (1) |
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171 | (1) |
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172 | (1) |
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11.4 Steps in managing threats to wildlife from infectious disease |
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172 | (3) |
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175 | (6) |
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11.5.1 Elements of a management plan |
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176 | (1) |
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11.5.2 Existing management plans for wildlife diseases: The example of Australia |
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176 | (5) |
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12 Preventing new disease occurrences |
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181 | (21) |
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12.1 Background and definitions |
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181 | (6) |
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12.1.1 Anticipatory planning |
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183 | (1) |
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12.1.2 Ecological and evolutionary considerations |
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184 | (3) |
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12.2 Introduction of pathogens into susceptible systems: Prevention and management |
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187 | (5) |
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12.2.1 Preventing disease introduction after accidental movement of hosts |
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187 | (4) |
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12.2.2 Preventing disease introduction during intentional host movement: Wildlife translocations and reintroduction |
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191 | (1) |
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12.2.3 Preventative protection of individual hosts |
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192 | (1) |
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12.3 Introduction of susceptible hosts to a disease nidus: Realities and prevention |
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192 | (2) |
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12.4 Preventing environmental changes that allow a disease to establish or increase in prevalence |
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194 | (2) |
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196 | (6) |
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13 Disease elimination and eradication |
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202 | (21) |
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202 | (1) |
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13.2 Pre-intervention considerations |
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202 | (4) |
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13.3 Manipulating the causative agent |
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206 | (1) |
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13.4 Manipulating the host(s) |
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207 | (4) |
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211 | (2) |
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13.6 Manipulating environmental factors |
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213 | (2) |
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215 | (1) |
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215 | (1) |
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13.9 Establishing an "ark" or "insurance" population |
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216 | (7) |
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14 Disease control: How to live with infection |
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223 | (14) |
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223 | (2) |
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14.2 Reducing prevalence or intensity of infection |
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225 | (2) |
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225 | (1) |
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225 | (2) |
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14.2.3 Managing species other than the focal host |
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227 | (1) |
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14.3 Increasing resistance or tolerance |
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227 | (5) |
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14.3.1 Food supplementation |
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227 | (1) |
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228 | (1) |
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14.3.3 Probiotics and related approaches |
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228 | (2) |
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14.3.4 Genetic management |
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230 | (2) |
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14.4 Increasing tolerance of infection at a population level |
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232 | (5) |
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15 Infectious diseases as biological control agents |
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237 | (13) |
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237 | (1) |
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15.2 Myxomatosis as a biological control for rabbit populations |
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237 | (4) |
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15.3 Rabbit hemorrhagic disease to control rabbit populations |
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241 | (1) |
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15.3.1 Rabbit biocontrol-Ecological consequences |
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242 | (1) |
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15.4 Feline panleukopenia virus against cats |
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242 | (1) |
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15.5 Herpesvirus as a control agent for European carp |
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243 | (2) |
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15.6 Potential biological control of cane toads |
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245 | (1) |
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15.7 Virally vectored immunocontraception |
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245 | (1) |
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15.8 Synthesis and conclusions |
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246 | (4) |
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15.8.1 Logistics of biocontrol |
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246 | (1) |
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15.8.2 Required prerelease knowledge |
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247 | (1) |
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15.8.3 Postrelease activities |
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247 | (3) |
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16 Ethical and public outreach considerations |
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250 | (14) |
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250 | (1) |
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16.2 Ethics in wildlife disease management |
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250 | (5) |
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252 | (1) |
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253 | (1) |
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16.2.3 A special case: Global eradication of pathogens or parasites |
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253 | (1) |
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16.2.4 Implications for wildlife disease management |
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253 | (1) |
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16.2.5 Ethics of wildlife disease management: Some practical suggestions |
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254 | (1) |
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16.3 Wildlife disease management and public outreach |
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255 | (9) |
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16.3.1 Communicating information about wildlife-associated disease: Interacting with the community |
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255 | (4) |
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16.3.2 Stakeholder engagement methods |
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259 | (5) |
| Index |
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264 | |