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En el instante 25 de junio de 2026, 12:43:24 UTC,
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Modificado el valor del campo
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a2026-06-25
en Road proximity affects reproductive investment in lizards: a two-years translocation experiment. -
Modificado el valor del campo
modified
del recurso Acceso al recurso a2026-06-25
(anteriormente2026-06-23
) en Road proximity affects reproductive investment in lizards: a two-years translocation experiment.
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| 50 | matriz de h\u00e1bitats distinta de la original", | ||||
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| 55 | "lineage_process_steps": [], | 69 | "lineage_process_steps": [], | ||
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| 57 | "2020 IENE International Conference. Abstract book. Vol. 5.1.1", | 71 | "2020 IENE International Conference. Abstract book. Vol. 5.1.1", | ||
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| 78 | "name": "124e1af6-c33f-5e16-a39e-0a63304e0a7f", | 92 | "name": "124e1af6-c33f-5e16-a39e-0a63304e0a7f", | ||
| 79 | "notes": "Worldwide roads are in continuous expansion, with an | 93 | "notes": "Worldwide roads are in continuous expansion, with an | ||
| 80 | expected increase of >60% by 2050. This may increase selection | 94 | expected increase of >60% by 2050. This may increase selection | ||
| 81 | pressures on wildlife, urging applied ecologist to investigate the | 95 | pressures on wildlife, urging applied ecologist to investigate the | ||
| 82 | adaptive potential of populations to forecast long-term effects. Most | 96 | adaptive potential of populations to forecast long-term effects. Most | ||
| 83 | of the works to date have been individual-focused, obviating the | 97 | of the works to date have been individual-focused, obviating the | ||
| 84 | potential evolutionary impact of these infrastructures on populations | 98 | potential evolutionary impact of these infrastructures on populations | ||
| 85 | of small vertebrates with low migration capability (e.g., lizards). | 99 | of small vertebrates with low migration capability (e.g., lizards). | ||
| 86 | Pressure associated to road proximity can be indirectly derived from | 100 | Pressure associated to road proximity can be indirectly derived from | ||
| 87 | habitat transformation and degradation. We hypothesize that we can | 101 | habitat transformation and degradation. We hypothesize that we can | ||
| 88 | demonstrate the selective effects of a road by comparing lizard | 102 | demonstrate the selective effects of a road by comparing lizard | ||
| 89 | phenotypes between subpopulations differing in proximity to the linear | 103 | phenotypes between subpopulations differing in proximity to the linear | ||
| 90 | infrastructure. Thus, to investigate selective effects as a function | 104 | infrastructure. Thus, to investigate selective effects as a function | ||
| 91 | of road proximity, we selected two150 meter-wide sampling bands of | 105 | of road proximity, we selected two150 meter-wide sampling bands of | ||
| 92 | terrain that were one close to a road and the other one 500 m away | 106 | terrain that were one close to a road and the other one 500 m away | ||
| 93 | from it. We studied differences in vegetation cover, prey | 107 | from it. We studied differences in vegetation cover, prey | ||
| 94 | availability, abundances of aerial predators and lizards, female | 108 | availability, abundances of aerial predators and lizards, female | ||
| 95 | phenology, and hatching date as indicators of habitat quality, | 109 | phenology, and hatching date as indicators of habitat quality, | ||
| 96 | associated to the presence of the road, and as possible drivers of | 110 | associated to the presence of the road, and as possible drivers of | ||
| 97 | subsequent differences in the lizard traits between subpopulations. | 111 | subsequent differences in the lizard traits between subpopulations. | ||
| 98 | Mean values of head and body size, body condition, ecto- and | 112 | Mean values of head and body size, body condition, ecto- and | ||
| 99 | endoparasite loads, tail state, and male nuptial coloration (all | 113 | endoparasite loads, tail state, and male nuptial coloration (all | ||
| 100 | traits associated to individual quality) were compared as base-line | 114 | traits associated to individual quality) were compared as base-line | ||
| 101 | indicators of disruptive selection. Near-males had an earlier | 115 | indicators of disruptive selection. Near-males had an earlier | ||
| 102 | investment of nuptial coloration in life, but coloration was of poor | 116 | investment of nuptial coloration in life, but coloration was of poor | ||
| 103 | quality as compared to far-males. Hatching date was earlier in the far | 117 | quality as compared to far-males. Hatching date was earlier in the far | ||
| 104 | subpopulation, and juveniles were bigger prior to hibernation there. | 118 | subpopulation, and juveniles were bigger prior to hibernation there. | ||
| 105 | In addition, during two years, we carried out a two-step | 119 | In addition, during two years, we carried out a two-step | ||
| 106 | capture-recapture translocation experiment. In the spring of the first | 120 | capture-recapture translocation experiment. In the spring of the first | ||
| 107 | year, we individually marked 120 males, 60 per sampling band, and | 121 | year, we individually marked 120 males, 60 per sampling band, and | ||
| 108 | translocated 30 of them from close to the road to far from the road, | 122 | translocated 30 of them from close to the road to far from the road, | ||
| 109 | and vice-versa. The remaining 60 males formed two control groups, | 123 | and vice-versa. The remaining 60 males formed two control groups, | ||
| 110 | close and far from the road, respectively. A balanced subsample of 25% | 124 | close and far from the road, respectively. A balanced subsample of 25% | ||
| 111 | of the males was recaptured ~30 days, in average, after the first | 125 | of the males was recaptured ~30 days, in average, after the first | ||
| 112 | capture. Intergroup differences in individual change of body | 126 | capture. Intergroup differences in individual change of body | ||
| 113 | condition, parasite load, and sexual coloration were calculated and | 127 | condition, parasite load, and sexual coloration were calculated and | ||
| 114 | used to quantify the response of the lizards to the road proximity. We | 128 | used to quantify the response of the lizards to the road proximity. We | ||
| 115 | found an effect of the treatment on the lizards: translocated lizards | 129 | found an effect of the treatment on the lizards: translocated lizards | ||
| 116 | lost weight. However, control individuals far from the road | 130 | lost weight. However, control individuals far from the road | ||
| 117 | significantly increased their body condition compared to the rest of | 131 | significantly increased their body condition compared to the rest of | ||
| 118 | experimental groups. Interestingly, these same lizards reduced their | 132 | experimental groups. Interestingly, these same lizards reduced their | ||
| 119 | endoparasite load, suggesting a selective impact of the road because | 133 | endoparasite load, suggesting a selective impact of the road because | ||
| 120 | no differences were initially detected in parasite load or body | 134 | no differences were initially detected in parasite load or body | ||
| 121 | condition between subpopulations. This was confirmed during the spring | 135 | condition between subpopulations. This was confirmed during the spring | ||
| 122 | of the second year when 30% of the lizards, marked the previous year, | 136 | of the second year when 30% of the lizards, marked the previous year, | ||
| 123 | were recaptured near the road. The variation observed in the traits | 137 | were recaptured near the road. The variation observed in the traits | ||
| 124 | measured confirmed that far-males had higher individual quality. All | 138 | measured confirmed that far-males had higher individual quality. All | ||
| 125 | this together supports the idea that the road exerts a selective | 139 | this together supports the idea that the road exerts a selective | ||
| 126 | effect, producing disruptive selection on the lizards\u2019 phenotype | 140 | effect, producing disruptive selection on the lizards\u2019 phenotype | ||
| 127 | and, therefore, may have an evolutionary impact on this population.", | 141 | and, therefore, may have an evolutionary impact on this population.", | ||
| 128 | "notes_translated": { | 142 | "notes_translated": { | ||
| 129 | "en": "Worldwide roads are in continuous expansion, with an | 143 | "en": "Worldwide roads are in continuous expansion, with an | ||
| 130 | expected increase of >60% by 2050. This may increase selection | 144 | expected increase of >60% by 2050. This may increase selection | ||
| 131 | pressures on wildlife, urging applied ecologist to investigate the | 145 | pressures on wildlife, urging applied ecologist to investigate the | ||
| 132 | adaptive potential of populations to forecast long-term effects. Most | 146 | adaptive potential of populations to forecast long-term effects. Most | ||
| 133 | of the works to date have been individual-focused, obviating the | 147 | of the works to date have been individual-focused, obviating the | ||
| 134 | potential evolutionary impact of these infrastructures on populations | 148 | potential evolutionary impact of these infrastructures on populations | ||
| 135 | of small vertebrates with low migration capability (e.g., lizards). | 149 | of small vertebrates with low migration capability (e.g., lizards). | ||
| 136 | Pressure associated to road proximity can be indirectly derived from | 150 | Pressure associated to road proximity can be indirectly derived from | ||
| 137 | habitat transformation and degradation. We hypothesize that we can | 151 | habitat transformation and degradation. We hypothesize that we can | ||
| 138 | demonstrate the selective effects of a road by comparing lizard | 152 | demonstrate the selective effects of a road by comparing lizard | ||
| 139 | phenotypes between subpopulations differing in proximity to the linear | 153 | phenotypes between subpopulations differing in proximity to the linear | ||
| 140 | infrastructure. Thus, to investigate selective effects as a function | 154 | infrastructure. Thus, to investigate selective effects as a function | ||
| 141 | of road proximity, we selected two150 meter-wide sampling bands of | 155 | of road proximity, we selected two150 meter-wide sampling bands of | ||
| 142 | terrain that were one close to a road and the other one 500 m away | 156 | terrain that were one close to a road and the other one 500 m away | ||
| 143 | from it. We studied differences in vegetation cover, prey | 157 | from it. We studied differences in vegetation cover, prey | ||
| 144 | availability, abundances of aerial predators and lizards, female | 158 | availability, abundances of aerial predators and lizards, female | ||
| 145 | phenology, and hatching date as indicators of habitat quality, | 159 | phenology, and hatching date as indicators of habitat quality, | ||
| 146 | associated to the presence of the road, and as possible drivers of | 160 | associated to the presence of the road, and as possible drivers of | ||
| 147 | subsequent differences in the lizard traits between subpopulations. | 161 | subsequent differences in the lizard traits between subpopulations. | ||
| 148 | Mean values of head and body size, body condition, ecto- and | 162 | Mean values of head and body size, body condition, ecto- and | ||
| 149 | endoparasite loads, tail state, and male nuptial coloration (all | 163 | endoparasite loads, tail state, and male nuptial coloration (all | ||
| 150 | traits associated to individual quality) were compared as base-line | 164 | traits associated to individual quality) were compared as base-line | ||
| 151 | indicators of disruptive selection. Near-males had an earlier | 165 | indicators of disruptive selection. Near-males had an earlier | ||
| 152 | investment of nuptial coloration in life, but coloration was of poor | 166 | investment of nuptial coloration in life, but coloration was of poor | ||
| 153 | quality as compared to far-males. Hatching date was earlier in the far | 167 | quality as compared to far-males. Hatching date was earlier in the far | ||
| 154 | subpopulation, and juveniles were bigger prior to hibernation there. | 168 | subpopulation, and juveniles were bigger prior to hibernation there. | ||
| 155 | In addition, during two years, we carried out a two-step | 169 | In addition, during two years, we carried out a two-step | ||
| 156 | capture-recapture translocation experiment. In the spring of the first | 170 | capture-recapture translocation experiment. In the spring of the first | ||
| 157 | year, we individually marked 120 males, 60 per sampling band, and | 171 | year, we individually marked 120 males, 60 per sampling band, and | ||
| 158 | translocated 30 of them from close to the road to far from the road, | 172 | translocated 30 of them from close to the road to far from the road, | ||
| 159 | and vice-versa. The remaining 60 males formed two control groups, | 173 | and vice-versa. The remaining 60 males formed two control groups, | ||
| 160 | close and far from the road, respectively. A balanced subsample of 25% | 174 | close and far from the road, respectively. A balanced subsample of 25% | ||
| 161 | of the males was recaptured ~30 days, in average, after the first | 175 | of the males was recaptured ~30 days, in average, after the first | ||
| 162 | capture. Intergroup differences in individual change of body | 176 | capture. Intergroup differences in individual change of body | ||
| 163 | condition, parasite load, and sexual coloration were calculated and | 177 | condition, parasite load, and sexual coloration were calculated and | ||
| 164 | used to quantify the response of the lizards to the road proximity. We | 178 | used to quantify the response of the lizards to the road proximity. We | ||
| 165 | found an effect of the treatment on\nthe lizards: translocated lizards | 179 | found an effect of the treatment on\nthe lizards: translocated lizards | ||
| 166 | lost weight. However, control individuals far from the road | 180 | lost weight. However, control individuals far from the road | ||
| 167 | significantly increased their body condition compared to the rest of | 181 | significantly increased their body condition compared to the rest of | ||
| 168 | experimental groups. Interestingly, these same lizards reduced their | 182 | experimental groups. Interestingly, these same lizards reduced their | ||
| 169 | endoparasite load, suggesting a\nselective impact of the road because | 183 | endoparasite load, suggesting a\nselective impact of the road because | ||
| 170 | no differences were initially detected in parasite load or body | 184 | no differences were initially detected in parasite load or body | ||
| 171 | condition between subpopulations. This was confirmed during the spring | 185 | condition between subpopulations. This was confirmed during the spring | ||
| 172 | of the second year when 30% of the lizards, marked the previous year, | 186 | of the second year when 30% of the lizards, marked the previous year, | ||
| 173 | were recaptured near the road. The variation observed in the traits | 187 | were recaptured near the road. The variation observed in the traits | ||
| 174 | measured confirmed that far-males had higher individual quality. All | 188 | measured confirmed that far-males had higher individual quality. All | ||
| 175 | this together supports the idea that the road exerts a selective | 189 | this together supports the idea that the road exerts a selective | ||
| 176 | effect, producing disruptive selection on the lizards\u2019 phenotype | 190 | effect, producing disruptive selection on the lizards\u2019 phenotype | ||
| 177 | and, therefore, may have an evolutionary impact on this population.", | 191 | and, therefore, may have an evolutionary impact on this population.", | ||
| 178 | "es": "Worldwide roads are in continuous expansion, with an | 192 | "es": "Worldwide roads are in continuous expansion, with an | ||
| 179 | expected increase of >60% by 2050. This may increase selection | 193 | expected increase of >60% by 2050. This may increase selection | ||
| 180 | pressures on wildlife, urging applied ecologist to investigate the | 194 | pressures on wildlife, urging applied ecologist to investigate the | ||
| 181 | adaptive potential of populations to forecast long-term effects. Most | 195 | adaptive potential of populations to forecast long-term effects. Most | ||
| 182 | of the works to date have been individual-focused, obviating the | 196 | of the works to date have been individual-focused, obviating the | ||
| 183 | potential evolutionary impact of these infrastructures on populations | 197 | potential evolutionary impact of these infrastructures on populations | ||
| 184 | of small vertebrates with low migration capability (e.g., lizards). | 198 | of small vertebrates with low migration capability (e.g., lizards). | ||
| 185 | Pressure associated to road proximity can be indirectly derived from | 199 | Pressure associated to road proximity can be indirectly derived from | ||
| 186 | habitat transformation and degradation. We hypothesize that we can | 200 | habitat transformation and degradation. We hypothesize that we can | ||
| 187 | demonstrate the selective effects of a road by comparing lizard | 201 | demonstrate the selective effects of a road by comparing lizard | ||
| 188 | phenotypes between subpopulations differing in proximity to the linear | 202 | phenotypes between subpopulations differing in proximity to the linear | ||
| 189 | infrastructure. Thus, to investigate selective effects as a function | 203 | infrastructure. Thus, to investigate selective effects as a function | ||
| 190 | of road proximity, we selected two150 meter-wide sampling bands of | 204 | of road proximity, we selected two150 meter-wide sampling bands of | ||
| 191 | terrain that were one close to a road and the other one 500 m away | 205 | terrain that were one close to a road and the other one 500 m away | ||
| 192 | from it. We studied differences in vegetation cover, prey | 206 | from it. We studied differences in vegetation cover, prey | ||
| 193 | availability, abundances of aerial predators and lizards, female | 207 | availability, abundances of aerial predators and lizards, female | ||
| 194 | phenology, and hatching date as indicators of habitat quality, | 208 | phenology, and hatching date as indicators of habitat quality, | ||
| 195 | associated to the presence of the road, and as possible drivers of | 209 | associated to the presence of the road, and as possible drivers of | ||
| 196 | subsequent differences in the lizard traits between subpopulations. | 210 | subsequent differences in the lizard traits between subpopulations. | ||
| 197 | Mean values of head and body size, body condition, ecto- and | 211 | Mean values of head and body size, body condition, ecto- and | ||
| 198 | endoparasite loads, tail state, and male nuptial coloration (all | 212 | endoparasite loads, tail state, and male nuptial coloration (all | ||
| 199 | traits associated to individual quality) were compared as base-line | 213 | traits associated to individual quality) were compared as base-line | ||
| 200 | indicators of disruptive selection. Near-males had an earlier | 214 | indicators of disruptive selection. Near-males had an earlier | ||
| 201 | investment of nuptial coloration in life, but coloration was of poor | 215 | investment of nuptial coloration in life, but coloration was of poor | ||
| 202 | quality as compared to far-males. Hatching date was earlier in the far | 216 | quality as compared to far-males. Hatching date was earlier in the far | ||
| 203 | subpopulation, and juveniles were bigger prior to hibernation there. | 217 | subpopulation, and juveniles were bigger prior to hibernation there. | ||
| 204 | In addition, during two years, we carried out a two-step | 218 | In addition, during two years, we carried out a two-step | ||
| 205 | capture-recapture translocation experiment. In the spring of the first | 219 | capture-recapture translocation experiment. In the spring of the first | ||
| 206 | year, we individually marked 120 males, 60 per sampling band, and | 220 | year, we individually marked 120 males, 60 per sampling band, and | ||
| 207 | translocated 30 of them from close to the road to far from the road, | 221 | translocated 30 of them from close to the road to far from the road, | ||
| 208 | and vice-versa. The remaining 60 males formed two control groups, | 222 | and vice-versa. The remaining 60 males formed two control groups, | ||
| 209 | close and far from the road, respectively. A balanced subsample of 25% | 223 | close and far from the road, respectively. A balanced subsample of 25% | ||
| 210 | of the males was recaptured ~30 days, in average, after the first | 224 | of the males was recaptured ~30 days, in average, after the first | ||
| 211 | capture. Intergroup differences in individual change of body | 225 | capture. Intergroup differences in individual change of body | ||
| 212 | condition, parasite load, and sexual coloration were calculated and | 226 | condition, parasite load, and sexual coloration were calculated and | ||
| 213 | used to quantify the response of the lizards to the road proximity. We | 227 | used to quantify the response of the lizards to the road proximity. We | ||
| 214 | found an effect of the treatment on the lizards: translocated lizards | 228 | found an effect of the treatment on the lizards: translocated lizards | ||
| 215 | lost weight. However, control individuals far from the road | 229 | lost weight. However, control individuals far from the road | ||
| 216 | significantly increased their body condition compared to the rest of | 230 | significantly increased their body condition compared to the rest of | ||
| 217 | experimental groups. Interestingly, these same lizards reduced their | 231 | experimental groups. Interestingly, these same lizards reduced their | ||
| 218 | endoparasite load, suggesting a selective impact of the road because | 232 | endoparasite load, suggesting a selective impact of the road because | ||
| 219 | no differences were initially detected in parasite load or body | 233 | no differences were initially detected in parasite load or body | ||
| 220 | condition between subpopulations. This was confirmed during the spring | 234 | condition between subpopulations. This was confirmed during the spring | ||
| 221 | of the second year when 30% of the lizards, marked the previous year, | 235 | of the second year when 30% of the lizards, marked the previous year, | ||
| 222 | were recaptured near the road. The variation observed in the traits | 236 | were recaptured near the road. The variation observed in the traits | ||
| 223 | measured confirmed that far-males had higher individual quality. All | 237 | measured confirmed that far-males had higher individual quality. All | ||
| 224 | this together supports the idea that the road exerts a selective | 238 | this together supports the idea that the road exerts a selective | ||
| 225 | effect, producing disruptive selection on the lizards\u2019 phenotype | 239 | effect, producing disruptive selection on the lizards\u2019 phenotype | ||
| 226 | and, therefore, may have an evolutionary impact on this population." | 240 | and, therefore, may have an evolutionary impact on this population." | ||
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