Series Preface |
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xiii | |
Volume Preface |
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xv | |
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xvii | |
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1 Sex Determination in Reptiles |
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1 | (1) |
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2 What Mechanisms Occur in Reptiles? Diversity of Sex-Determining Mechanisms (SDMs) and Patterns |
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2 | (10) |
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2.1 Patterns of Genotypic Sex Determination |
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2 | (6) |
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2.2 Patterns of Temperature-dependent Sex Determination |
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8 | (2) |
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2.3 Sex-determining Mechanisms as a Dichotomy or a Continuum? |
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10 | (2) |
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3 Who Exhibits Genotypic Sex Determination (GSD) and Temperature-dependent Sex Determination (TSD)? Taxonomic and Phylogenetic Distribution |
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12 | (4) |
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3.1 Chelonian and Squamate Sex Determination |
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12 | (3) |
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3.2 Transitions between Sex-determining Mechanisms (SDMs) |
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15 | (1) |
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4 How is Sex Determined? Proximate Mechanisms |
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16 | (4) |
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4.1 Gonadal Differentiation and Gene Expression |
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16 | (2) |
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4.2 Physiological Mechanisms under Temperature-dependent Sex Determination (TSD) |
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18 | (2) |
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5 When is Sex Determined? Timing of Embryonic Sexual Lability |
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20 | (4) |
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5.1 Methods for Establishing the Thermosensitive Period (TSP) |
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20 | (1) |
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5.2 Variation in the Thermosensitive Period (TSP) and its Ecological Implications |
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21 | (3) |
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6 Why do Reptiles Exhibit a Diversity of Sex-determining Mechanisms (SDMS)? Ecology and Evolution |
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24 | (6) |
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6.1 Ecological Relevance: Does Temperature-dependent Sex Determination (TSD) Occur in Nature? |
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24 | (1) |
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6.2 Adaptive Significance of Sex-determining Mechanisms (SDMs) |
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25 | (3) |
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6.3 Evolutionary Potential of Temperature-dependent Sex Determination (TSD) |
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28 | (1) |
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6.4 Comments on the Coexistence of Temperature-dependent Sex Determination (TSD) and Sex Chromosomes |
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29 | (1) |
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7 Where to go next: Future Research and Conclusions |
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30 | (1) |
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31 | (1) |
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31 | (1) |
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31 | (8) |
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2 Neuroendocrinology of Reptilian Reproductive Behavior |
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39 | (1) |
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2 Behavioral Displays in Ecological Context |
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40 | (3) |
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2.1 Anolis Lizards and the Ecology of Visual Reproductive Displays |
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40 | (1) |
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2.2 Reproductive Communication in Other Reptilian Taxa |
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41 | (1) |
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2.2.1 Differences between males and females |
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41 | (1) |
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2.2.2 Variation within sexes: Alternative reproductive strategies |
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42 | (1) |
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43 | (1) |
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3 Hormonal Control of Reproductive Behaviors in Adulthood |
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43 | (3) |
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3.1 Hormonal Control of Anole Reproduction |
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43 | (1) |
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3.2 Hormonal Control in Species with Alternative Reproductive Strategies |
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44 | (1) |
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3.3 Hormonal Control of Reproduction in Other Reptilian Taxa |
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45 | (1) |
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45 | (1) |
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4 Neural Control of Reproductive Behaviors |
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46 | (4) |
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4.1 Neural and Muscular Control of Anole Reproduction |
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46 | (3) |
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4.2 Neural Control of Whiptail Lizard Reproduction |
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49 | (1) |
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4.3 Neural Control of Reproduction in Other Reptiles |
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50 | (1) |
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50 | (1) |
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5 Development of Reproductive Traits |
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50 | (3) |
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5.1 Development of Sex Differences in Anoles and Whiptail Lizards |
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50 | (1) |
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5.2 Development in Reptiles with Alternative Reproductive Morphs |
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51 | (1) |
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5.3 Development in Reptiles with Temperature-dependent Sex Determination (TSD) |
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52 | (1) |
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53 | (1) |
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53 | (2) |
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6.1 Effects of Season and Hormone Manipulation in Anoles |
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53 | (1) |
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6.2 Effects of Season and Hormone Manipulation in Other Reptiles |
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54 | (1) |
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55 | (1) |
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7 Conclusions and Future Directions |
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55 | (1) |
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55 | (1) |
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56 | (7) |
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3 Hormonal Regulation of Testicular Functions in Reptiles |
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63 | (2) |
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65 | (4) |
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2.1 Tubular Compartment of the Testis |
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66 | (1) |
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2.2 Interstitual Compartment |
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67 | (2) |
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69 | (7) |
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69 | (5) |
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74 | (2) |
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4 Regulation of Testicular Functions |
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76 | (4) |
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4.1 Environmental Factors |
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76 | (1) |
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4.2 Extratesticular Factors |
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76 | (1) |
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4.2.1 Hypothalamic hormones |
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76 | (1) |
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77 | (1) |
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78 | (1) |
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4.3 Intratesticular Factors |
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78 | (1) |
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78 | (1) |
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79 | (1) |
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4.3.3 Other paracrine factors |
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79 | (1) |
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4.3.3.1 Sertoli cell-secreted factors |
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79 | (1) |
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4.3.3.2 Testicular macrophage-secreted factor |
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80 | (1) |
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80 | (1) |
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4.3.3.4 Leyding cell-secreted factors |
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80 | (1) |
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5 Regulation of Testicular Immune Functions |
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80 | (1) |
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6 Maintenance of Male Accessory Sex Organs and Courtship Behavior |
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81 | (1) |
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81 | (1) |
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82 | (1) |
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82 | (2) |
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84 | (1) |
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84 | (5) |
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4 Hormonal Regulation of Ovarian Function in Reptiles |
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89 | (3) |
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89 | (1) |
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89 | (2) |
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1.2.1 Hormonal control of ovarian development |
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91 | (1) |
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1.3 Major Ovarian Hormones |
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91 | (1) |
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1.4 Hypophysial Regulation of Ovarian Function |
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92 | (1) |
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92 | (6) |
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94 | (1) |
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95 | (1) |
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2.3 Steroid-binding Proteins in Plasma |
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96 | (1) |
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2.4 Peripheral Metabolism of Steroids |
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97 | (1) |
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98 | (6) |
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98 | (1) |
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3.2 Follicular Development |
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98 | (2) |
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3.2.1 Roles of hormones in recruitment and folliculogenesis |
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100 | (1) |
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3.2.2 Determinants of clutch size |
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100 | (1) |
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101 | (1) |
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101 | (1) |
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3.3.1 Mechanisms of Vitellogenesis |
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102 | (1) |
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3.3.2 Hormones and vitellogenesis |
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102 | (2) |
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104 | (1) |
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104 | (2) |
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4.1 Mechanisms of Ovulation in Reptiles |
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104 | (1) |
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4.2 Hormonal Control of Ovulation |
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105 | (1) |
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105 | (1) |
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5 The Post-ovulatory Ovary: The Corpus Luteum |
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106 | (2) |
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5.1 Morphological Changes in the Reptilian Corpus Luteum |
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106 | (1) |
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5.2 Steroid Production by the Corpus Luteum |
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107 | (1) |
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107 | (1) |
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5.4 Hormones and Luteolysis |
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108 | (1) |
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6 Future Directions: Application of Reproductive Endocrinology to Conservation |
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108 | (1) |
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109 | (1) |
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109 | (8) |
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5 Hormones and the Sex Ducts and Sex Accessory Structures of Reptiles |
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117 | (1) |
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117 | (1) |
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3 Reproductive Cycles and Sex Hormones |
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118 | (1) |
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118 | (9) |
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118 | (2) |
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120 | (1) |
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121 | (1) |
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4.4 Reproductive Cycles and Hormonal Dependence |
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122 | (1) |
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122 | (3) |
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125 | (1) |
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126 | (1) |
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126 | (1) |
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127 | (6) |
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127 | (1) |
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128 | (2) |
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130 | (1) |
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130 | (1) |
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130 | (1) |
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5.6 Reproductive Cycles and Hormonal Dependence |
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131 | (1) |
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131 | (1) |
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132 | (1) |
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132 | (1) |
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133 | (1) |
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134 | (1) |
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134 | (1) |
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135 | (6) |
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6 Pheromones and Reproduction in Reptiles |
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141 | (1) |
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1.1 Pheromones of Vertebrates |
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141 | (1) |
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1.2 Chemosensory Abilities of Reptiles: The Vomeronasal System |
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141 | (1) |
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1.3 Pheromones and Reproduction in Reptiles |
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142 | (1) |
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142 | (2) |
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143 | (1) |
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143 | (1) |
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144 | (1) |
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144 | (1) |
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145 | (1) |
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145 | (14) |
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145 | (1) |
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146 | (1) |
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5.2.1 Secretory glands and potential pheromones |
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146 | (1) |
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146 | (1) |
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5.2.1.2 Femoral, precloacal, and preanal glands |
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146 | (2) |
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148 | (1) |
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148 | (1) |
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5.2.1.3 Cloacal and urodeal glands |
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149 | (1) |
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149 | (1) |
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5.2.2 Chemosensory recognition |
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150 | (1) |
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5.2.2.1 Sex and individual recognition |
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150 | (2) |
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152 | (1) |
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152 | (1) |
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5.2.3 Evolution of pheromonal mate choice |
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152 | (2) |
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5.2.3.1 Evolutionary mechanisms |
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154 | (1) |
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5.2.4 Evolution of male social dominance based on pheromones |
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155 | (2) |
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157 | (1) |
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5.3.1 Secretory glands and potential pheromones |
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157 | (1) |
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157 | (1) |
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5.3.1.2 Cloacal scent glands |
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157 | (1) |
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157 | (1) |
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5.3.2 Chemosensory recognition |
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158 | (1) |
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5.3.2.1 Sex discrimination and trailing |
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158 | (1) |
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158 | (1) |
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5.3.2.3 Pheromonal female mimicry |
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159 | (1) |
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6 Suggestions for Future Research |
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159 | (2) |
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161 | (1) |
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161 | (1) |
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161 | (8) |
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7 Stress and Reproduction in Reptiles |
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169 | (3) |
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169 | (1) |
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169 | (2) |
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1.3 Importance of Studying Reptiles |
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171 | (1) |
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1.4 Relationship of Stress to Reproduction in Reptilian Life Histories |
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171 | (1) |
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2 Mechanisms Mediating Stress Response |
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172 | (3) |
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172 | (1) |
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2.2 Hypothalamic-Pituitary-Adrenal (HPA) Axis |
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173 | (1) |
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2.3 Hypothalamic-Pituitary-Gonadal (HPG) Axis |
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174 | (1) |
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3 Effects of Stress on Reproductive Function |
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175 | (13) |
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175 | (1) |
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3.2 Reproductive Hormones |
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175 | (4) |
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179 | (1) |
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179 | (3) |
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3.3.2 Testicular function |
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182 | (1) |
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183 | (5) |
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4 Seasonal Changes in Circulating Corticosterone (CORT) Levels |
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188 | (4) |
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4.1 Baseline and Stress Levels |
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188 | (1) |
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4.2 Pre-breeding, Breeding, and Post-breeding periods |
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188 | (4) |
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5 Modulation of Stress Response During Reproduction |
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192 | (6) |
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192 | (5) |
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197 | (1) |
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6 Fitness Effects of Stress During Reproduction |
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198 | (4) |
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198 | (1) |
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6.2 Mothers and Offspring |
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199 | (1) |
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200 | (2) |
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7 Conclusions and Research Directions |
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202 | (2) |
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202 | (1) |
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7.2 Future Research Directions |
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203 | (1) |
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204 | (1) |
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204 | (11) |
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8 Hormones and Behavior of Reptiles |
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215 | (8) |
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1.1 Organization and Other Developmental Effects of Reptilian Hormones on Behavior |
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216 | (4) |
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1.2 Endocrine Effects on Behavior in Viviparous Species |
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220 | (1) |
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221 | (1) |
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1.4 Endocrine Network Theory and the Regulation of Behaviors |
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222 | (1) |
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2 The Form of Natural, Sexual, and Social Selection |
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223 | (10) |
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2.1 Hormone Modulation of Male Reproductive Behaviors |
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227 | (1) |
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2.2 Sexual Selection, Life History, and Correlated Selection---Hormones, Behavior, and Fitness |
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227 | (1) |
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2.3 Testosterone (T) and Signals---Colors and Badges |
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228 | (1) |
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2.4 Aggression and Territoriality |
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228 | (2) |
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2.5 Testosterone (T) and Courtship/Copulations |
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230 | (1) |
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2.6 Integration---Hormones, Performance, Behavior, and Fitness |
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230 | (1) |
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2.7 Modulation of Aggressive and Courtship Behavior: Arginine Vasotocin (AVT) |
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230 | (3) |
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2.8 Interactions with CNS Neuroendocrine Hormones |
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233 | (1) |
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2.9 Parental Care---Crocodilians as Model Organisms |
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233 | (1) |
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3 Social Networks and Endocrine Networks |
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233 | (7) |
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3.1 Social Groups, Monogamy, Filiative Behaviors, and the Suppression of `Aggression' |
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236 | (1) |
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3.2 The Potential Role of Prolactin as the Master Regulator of Reptilian Behaviors |
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237 | (3) |
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240 | (1) |
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240 | (7) |
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9 Viviparity in Reptiles: Evolution and Reproductive Endocrinology |
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247 | (1) |
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2 Defining Reproductive Mode |
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247 | (1) |
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3 Evolution of Viviparity within Squamates |
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248 | (1) |
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4 Selective Forces for the Evolution of Viviparity |
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248 | (2) |
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5 Reproductive Morphology and Physiology: Requirements or Refinements of Viviparity? |
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250 | (1) |
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6 Egg Retention and the Lengthening of Gestation |
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250 | (5) |
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7 The Reduction of the Eggshell |
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255 | (4) |
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8 Emergence of the Placenta |
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259 | (3) |
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9 Maternal Recognition of Pregnancy |
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262 | (2) |
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264 | (1) |
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11 Research Questions & Future Directions |
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265 | (3) |
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268 | (1) |
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268 | (9) |
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10 Hormones and Reproductive Cycles in Turtles |
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277 | (1) |
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278 | (2) |
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278 | (2) |
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280 | (1) |
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3 Different Types of Cycles and Timing of Reproduction in Turtles |
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280 | (5) |
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280 | (1) |
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3.1.1 Prenuptial and postnuptial reproductive cycles |
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280 | (1) |
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281 | (1) |
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282 | (3) |
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3.1.4 Variation in the number of clutches |
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285 | (1) |
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3.2 Timing of Reproduction |
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285 | (1) |
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4 Hormonal and Gonadal Reproductive Cycles |
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285 | (11) |
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285 | (1) |
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285 | (3) |
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288 | (2) |
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4.1.3 Terrestrial turtles (tortoises) |
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290 | (3) |
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293 | (1) |
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293 | (2) |
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295 | (1) |
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295 | (1) |
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296 | (2) |
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5.1 Metabolic and Stress Hormones |
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296 | (1) |
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5.1.1 Thyroid hormones and their possible role in reproduction |
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296 | (1) |
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5.1.2 Corticosterone (CORT) |
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297 | (1) |
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297 | (1) |
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5.2 Pineal Hormones and Annual Cycles |
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297 | (1) |
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298 | (1) |
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299 | (1) |
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299 | (6) |
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11 Hormones and Reproductive Cycles in Crocodilians |
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305 | (1) |
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306 | (3) |
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2.1 Sexual Differentiation |
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307 | (1) |
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2.1.1 Gonadal development |
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307 | (1) |
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2.1.2 Secondary sex characteristics |
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308 | (1) |
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2.2 Juvenile Growth and Peripubertal Seasonality |
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309 | (1) |
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309 | (6) |
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309 | (2) |
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3.2 Male Reproductive Cycles |
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311 | (1) |
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3.3 Female Reproductive Cycles |
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312 | (1) |
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3.3.1 Vitellogenesis and oocyte maturation |
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312 | (1) |
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3.3.2 Ovulation, gravidity, and oviposition |
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312 | (3) |
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4 Current and Future Research Directions |
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315 | (1) |
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4.1 Molecular Endocrinology in Crocodilians |
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315 | (1) |
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4.1.1 Steroidogenesis and steroid metabolism |
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315 | (1) |
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4.1.2 Peptide hormones and hormone receptors |
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315 | (1) |
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316 | (1) |
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316 | (1) |
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316 | (5) |
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12 Hormones and Reproductive Cycles in Lizards |
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321 | (5) |
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321 | (1) |
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1.1.1 Practical considerations |
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321 | (1) |
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1.1.2 Evolutionary considerations |
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322 | (3) |
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1.1.3 Environmental and conservation considerations |
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325 | (1) |
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1.2 Overview for Remainder of Chapter |
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326 | (1) |
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326 | (17) |
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2.1 Seasonality of Reproduction |
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326 | (2) |
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2.2 Types of Reproductive Cycle |
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328 | (2) |
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330 | (1) |
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2.3.1 Overview of the hypothalamus-pituitary-gonadal (HPG) axis regulation of reproductive cycles |
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330 | (1) |
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331 | (4) |
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2.3.1.2 Amphisbaenidae, Trogonophidae, Bipedidae, Blanidae, Cadeidae, and Rhineuridae |
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335 | (1) |
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335 | (1) |
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336 | (1) |
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336 | (1) |
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2.3.1.6 Anguidae, Anniellidae, and Diploglossidae |
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336 | (1) |
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337 | (1) |
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337 | (1) |
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337 | (1) |
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337 | (1) |
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337 | (1) |
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338 | (1) |
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338 | (1) |
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339 | (1) |
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340 | (1) |
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340 | (1) |
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340 | (1) |
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2.3.1.18 Sphaerodactylidae, Gekkonnidae, Phyllodactylidae, Eublepharidae, Diplodactylidae, Carphodactylidae, Pygopodidae |
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340 | (1) |
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341 | (1) |
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2.3.2 Other aspects of endocrine regulation of reproductive cycles |
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341 | (1) |
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2.3.2.1 Hypothalamus-pituitary-adrenal (HPA) axis |
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341 | (1) |
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2.3.2.2 Endogenous rhythms |
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342 | (1) |
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3 Conclusions and Future Directions |
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343 | (1) |
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344 | (1) |
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344 | (11) |
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13 Hormones and Reproductive Cycles in Snakes |
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355 | (1) |
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2 Hormones and Reproductive Cycles in Snakes |
|
|
356 | (6) |
|
2.1 Steroids and Reproduction in Snakes other than Thamnophis sirtalis parietalis |
|
|
357 | (1) |
|
|
357 | (1) |
|
|
358 | (1) |
|
2.2 Steroids and Reproduction in Red-sided Garter Snakes (Thamnophis sirtalis parietalis) |
|
|
359 | (1) |
|
|
359 | (1) |
|
|
359 | (1) |
|
2.3 Hypothalamic Hormones, Gonadotropins, Hormone Receptors, and Binding Globulins in Snakes |
|
|
360 | (1) |
|
2.4 The Neuroendocrinology of Reproduction in Snakes |
|
|
361 | (1) |
|
3 Influences on the Reproductive Cycle |
|
|
362 | (3) |
|
3.1 Environmental Influences |
|
|
362 | (2) |
|
|
364 | (1) |
|
3.3 Physiological Influences |
|
|
364 | (1) |
|
|
365 | (1) |
|
4 Future Directions to Augment Existing Knowledge |
|
|
365 | (2) |
|
|
367 | (1) |
|
|
367 | (1) |
|
|
367 | (6) |
|
14 Endocrine Disruption of Reproduction in Reptiles |
|
|
|
|
373 | (3) |
|
2 Reptiles as Models of EDC Exposure |
|
|
376 | (1) |
|
3 Endocrine-Disrupting Chemicals (EDCs) and Reptilian Reproduction |
|
|
376 | (10) |
|
3.1 Tissue Concentrations of Endocrine-disrupting Chemicals (EDCs) in Reptiles |
|
|
377 | (1) |
|
3.2 Sex Steroid Hormone Alterations |
|
|
378 | (4) |
|
3.3 Reproductive Organ Abnormalities |
|
|
382 | (2) |
|
|
384 | (2) |
|
4 Endocrine-Disrupting Chemicals (EDCs) and Reptilian Thyroid Function |
|
|
386 | (4) |
|
4.1 Hatching and Neonatal Growth |
|
|
386 | (1) |
|
4.2 Growth, Metabolism, and Effects on Reproduction |
|
|
387 | (2) |
|
4.3 Thyroidal-Gonadal Axes and Effects on Reproduction |
|
|
389 | (1) |
|
|
390 | (1) |
|
|
390 | (1) |
|
|
391 | (6) |
Species Index |
|
397 | (4) |
Subject Index |
|
401 | (1) |
Color Plates |
|
401 | |