Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes
Sexual reproduction, growth, and survival are crucial demographic strategies for plant population viability. Here, we propose a conceptual model predicting demographic responses of species based on their ecological strategy and the heterogeneity of envi-ronmental conditions within a biogeo...
| Main Authors: | , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Wiley
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/17704 https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/oik.10203 https://doi.org/10.1111/oik.10203 |
| _version_ | 1855486017850572800 |
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| author | Nasta, Lautaro L. Leva, Paula Edit Premoli, Andrea Cecilia Aguiar, Martín Roberto |
| author_browse | Aguiar, Martín Roberto Leva, Paula Edit Nasta, Lautaro L. Premoli, Andrea Cecilia |
| author_facet | Nasta, Lautaro L. Leva, Paula Edit Premoli, Andrea Cecilia Aguiar, Martín Roberto |
| author_sort | Nasta, Lautaro L. |
| collection | INTA Digital |
| description | Sexual reproduction, growth, and survival are crucial demographic strategies for plant population viability. Here, we propose a conceptual model predicting demographic responses of species based on their ecological strategy and the heterogeneity of envi-ronmental conditions within a biogeographical unit and then applied it to a case study from a 5 ̊ latitudinal gradient in the Patagonian steppes. We also aim to disentangle genetic from environmental effects on demographic responses. We performed in situ and common garden experiments with two species from six local populations of the Occidental Phytogeographical District of the Patagonian steppes. Species differ in key ecological traits, and thus fit into Grime’s model for evolutionary strategies in plants: one as competitive species and the other as stress-tolerant species. We calculated popu-lation growth rate (λ) and performed elasticity analyses to compare the contribution of each demographic strategy to population fitness between species and among local populations distributed along 600 km latitudinal gradient with differences in mean annual precipitation (MAP). We highlight four results. First, the competitive species change from sexual reproduction to growth as MAP increases. Second, the stress-toler-ant species relied on growth and survival along the MAP gradient. Third, interannual variation in resource availability modulated demographic responses for both strategies. Fourth, based on the comparison of the in situ and common garden experiments, we submit that demographic responses were genetically driven. Our study shows that demographic responses can be roughly predicted by the ecological strategy across envi-ronmental gradients. We show that differences arise not only between species, but also were genetically driven differences within species among local populations. Scaling up plant-level responses to population-level dynamics allows for a process-based under-standing of current and future biogeographical species organization. Furthermore, conservation and restoration efforts should be guided by demographic strategies underlying population viability. |
| format | Artículo |
| id | INTA17704 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA177042024-05-13T10:25:48Z Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes Nasta, Lautaro L. Leva, Paula Edit Premoli, Andrea Cecilia Aguiar, Martín Roberto Sexual Reproduction Biotic Stress Abiotic Stress Models Reproducción Sexual Estrés Biótico Estrés Abiótico Modelos Región Patagónica Estrategias Ecológicas Análisis de Elasticidad Ecological Strategies Elasticity Analysis Sexual reproduction, growth, and survival are crucial demographic strategies for plant population viability. Here, we propose a conceptual model predicting demographic responses of species based on their ecological strategy and the heterogeneity of envi-ronmental conditions within a biogeographical unit and then applied it to a case study from a 5 ̊ latitudinal gradient in the Patagonian steppes. We also aim to disentangle genetic from environmental effects on demographic responses. We performed in situ and common garden experiments with two species from six local populations of the Occidental Phytogeographical District of the Patagonian steppes. Species differ in key ecological traits, and thus fit into Grime’s model for evolutionary strategies in plants: one as competitive species and the other as stress-tolerant species. We calculated popu-lation growth rate (λ) and performed elasticity analyses to compare the contribution of each demographic strategy to population fitness between species and among local populations distributed along 600 km latitudinal gradient with differences in mean annual precipitation (MAP). We highlight four results. First, the competitive species change from sexual reproduction to growth as MAP increases. Second, the stress-toler-ant species relied on growth and survival along the MAP gradient. Third, interannual variation in resource availability modulated demographic responses for both strategies. Fourth, based on the comparison of the in situ and common garden experiments, we submit that demographic responses were genetically driven. Our study shows that demographic responses can be roughly predicted by the ecological strategy across envi-ronmental gradients. We show that differences arise not only between species, but also were genetically driven differences within species among local populations. Scaling up plant-level responses to population-level dynamics allows for a process-based under-standing of current and future biogeographical species organization. Furthermore, conservation and restoration efforts should be guided by demographic strategies underlying population viability. Instituto de Floricultura Fil: Nasta, Lautaro L. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Leva, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Floricultura; Argentina Fil: Premoli, Andrea C. Universidad Nacional del Comahue. Centro Regional Bariloche. Instituto de Investigación de Biodiversidad y Medioambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de Biodiversidad y Medioambiente; Argentina. Fil: Aguiar, Martín R. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina 2024-05-13T10:03:06Z 2024-05-13T10:03:06Z 2024-04-15 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/17704 https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/oik.10203 1600-0706 0030-1299 https://doi.org/10.1111/oik.10203 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Oikos : e10203. (First published: 15 April 2024) |
| spellingShingle | Sexual Reproduction Biotic Stress Abiotic Stress Models Reproducción Sexual Estrés Biótico Estrés Abiótico Modelos Región Patagónica Estrategias Ecológicas Análisis de Elasticidad Ecological Strategies Elasticity Analysis Nasta, Lautaro L. Leva, Paula Edit Premoli, Andrea Cecilia Aguiar, Martín Roberto Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title | Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title_full | Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title_fullStr | Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title_full_unstemmed | Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title_short | Extending Grime’s CSR model to predict plant demographic responses across resource availability gradients: evidence from the patagonian steppes |
| title_sort | extending grime s csr model to predict plant demographic responses across resource availability gradients evidence from the patagonian steppes |
| topic | Sexual Reproduction Biotic Stress Abiotic Stress Models Reproducción Sexual Estrés Biótico Estrés Abiótico Modelos Región Patagónica Estrategias Ecológicas Análisis de Elasticidad Ecological Strategies Elasticity Analysis |
| url | http://hdl.handle.net/20.500.12123/17704 https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/oik.10203 https://doi.org/10.1111/oik.10203 |
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