Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes
Abstract Phenotypic plasticity may increase the performance and fitness and allow organisms to cope with variable environmental conditions. We studied within‐generation plasticity and transgenerational effects of thermal conditions on temperature tolerance and demographic parameters in Drosophila me...
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| Format: | Article |
| Language: | English |
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Wiley
2020-08-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.6496 |
| _version_ | 1819176328241348608 |
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| author | Grisel Cavieres Enrico L. Rezende Sabrina Clavijo‐Baquet José M. Alruiz Carla Rivera‐Rebella Francisca Boher Francisco Bozinovic |
| author_facet | Grisel Cavieres Enrico L. Rezende Sabrina Clavijo‐Baquet José M. Alruiz Carla Rivera‐Rebella Francisca Boher Francisco Bozinovic |
| author_sort | Grisel Cavieres |
| collection | DOAJ |
| description | Abstract Phenotypic plasticity may increase the performance and fitness and allow organisms to cope with variable environmental conditions. We studied within‐generation plasticity and transgenerational effects of thermal conditions on temperature tolerance and demographic parameters in Drosophila melanogaster. We employed a fully factorial design, in which both parental (P) and offspring generations (F1) were reared in a constant or a variable thermal environment. Thermal variability during ontogeny increased heat tolerance in P, but with demographic cost as this treatment resulted in substantially lower survival, fecundity, and net reproductive rate. The adverse effects of thermal variability (V) on demographic parameters were less drastic in flies from the F1, which exhibited higher net reproductive rates than their parents. These compensatory responses could not totally overcome the challenges of the thermally variable regime, contrasting with the offspring of flies raised in a constant temperature (C) that showed no reduction in fitness with thermal variation. Thus, the parental thermal environment had effects on thermal tolerance and demographic parameters in fruit fly. These results demonstrate how transgenerational effects of environmental conditions on heat tolerance, as well as their potential costs on other fitness components, can have a major impact on populations’ resilience to warming temperatures and more frequent thermal extremes. |
| first_indexed | 2024-12-22T21:09:01Z |
| format | Article |
| id | doaj.art-da7506e492124fc3bbf5ec050145efa5 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-22T21:09:01Z |
| publishDate | 2020-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-da7506e492124fc3bbf5ec050145efa52022-12-21T18:12:36ZengWileyEcology and Evolution2045-77582020-08-0110158105811310.1002/ece3.6496Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapesGrisel Cavieres0Enrico L. Rezende1Sabrina Clavijo‐Baquet2José M. Alruiz3Carla Rivera‐Rebella4Francisca Boher5Francisco Bozinovic6Departamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileDepartamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileSección Etología Facultad de Ciencias Universidad de la República Montevideo UruguayDepartamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileDepartamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileDepartamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileDepartamento de Ecología Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago ChileAbstract Phenotypic plasticity may increase the performance and fitness and allow organisms to cope with variable environmental conditions. We studied within‐generation plasticity and transgenerational effects of thermal conditions on temperature tolerance and demographic parameters in Drosophila melanogaster. We employed a fully factorial design, in which both parental (P) and offspring generations (F1) were reared in a constant or a variable thermal environment. Thermal variability during ontogeny increased heat tolerance in P, but with demographic cost as this treatment resulted in substantially lower survival, fecundity, and net reproductive rate. The adverse effects of thermal variability (V) on demographic parameters were less drastic in flies from the F1, which exhibited higher net reproductive rates than their parents. These compensatory responses could not totally overcome the challenges of the thermally variable regime, contrasting with the offspring of flies raised in a constant temperature (C) that showed no reduction in fitness with thermal variation. Thus, the parental thermal environment had effects on thermal tolerance and demographic parameters in fruit fly. These results demonstrate how transgenerational effects of environmental conditions on heat tolerance, as well as their potential costs on other fitness components, can have a major impact on populations’ resilience to warming temperatures and more frequent thermal extremes.https://doi.org/10.1002/ece3.6496Drosophila melanogasterfitnessphenotypic plasticitythermal tolerancethermal variability |
| spellingShingle | Grisel Cavieres Enrico L. Rezende Sabrina Clavijo‐Baquet José M. Alruiz Carla Rivera‐Rebella Francisca Boher Francisco Bozinovic Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes Ecology and Evolution Drosophila melanogaster fitness phenotypic plasticity thermal tolerance thermal variability |
| title | Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| title_full | Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| title_fullStr | Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| title_full_unstemmed | Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| title_short | Rapid within‐ and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| title_sort | rapid within and transgenerational changes in thermal tolerance and fitness in variable thermal landscapes |
| topic | Drosophila melanogaster fitness phenotypic plasticity thermal tolerance thermal variability |
| url | https://doi.org/10.1002/ece3.6496 |
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