Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management
Mast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed predator (e.g., invertebrates vs. vertebrates) or depending on local characteri...
| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0378112717305686 http://hdl.handle.net/20.500.12123/2729 https://doi.org/10.1016/j.foreco.2017.06.014 |
| _version_ | 1855483109422661632 |
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| author | Soler Esteban, Rosina Matilde Espelta, Josep Maria Lencinas, María Vanessa Peri, Pablo Luis Martínez Pastur, Guillermo José |
| author_browse | Espelta, Josep Maria Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis Soler Esteban, Rosina Matilde |
| author_facet | Soler Esteban, Rosina Matilde Espelta, Josep Maria Lencinas, María Vanessa Peri, Pablo Luis Martínez Pastur, Guillermo José |
| author_sort | Soler Esteban, Rosina Matilde |
| collection | INTA Digital |
| description | Mast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed predator (e.g., invertebrates vs. vertebrates) or depending on local characteristics, remains seldom explored. We evaluated for 8 yrs the patterns of seed production in antarctic beech (Nothofagus antarctica) forests related to management and its influence on insect and bird pre-dispersal seed predation. Along the study, mature seed production was highly variable across years (the population-level coefficient of variation, CVp: 0.98–1.14) and spatially synchronized (Pearson correlation coefficient: 0.83–0.86). Forest type (primary unmanaged, secondary-growth and managed stands) did not influence the amount of seed production nor masting patterns. Mean yearly seed predation by insects was higher than by birds, and their relationship with seeding patterns differed: i.e., while the proportion of seeds predated by insects increased during non-mast years maximum bird predation occurred in mast years. Therefore, predation by insects and birds showed a strong negative relationship. Our results suggest that effectiveness of masting to escape seed predators may be highly depend on the type of predator. We address whether this effect may be due to differences in life history traits among the seed predators involved (i.e., degree of host specificity, dispersal ability or the duration of the life-cycle) and whether an “imperfect” control of avian seed predation may partially be advantageous for the dynamics of the masting species to enhance seed dispersal. |
| format | Artículo |
| id | INTA2729 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA27292018-07-05T12:23:16Z Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management Soler Esteban, Rosina Matilde Espelta, Josep Maria Lencinas, María Vanessa Peri, Pablo Luis Martínez Pastur, Guillermo José Nothofagus Producción de Semillas Depredación Pájaros Depredadores Insectos Depredadores Ordenación Forestal Seed Production Predation Predatory Birds Predatory Insects Forest Management Nothofagus antarctica Mast seeding is characteristic of many long-lived tree species and widely proposed as a mechanism to reduce seed predation. However, whether the efficiency of this reproductive response may vary depending on type of seed predator (e.g., invertebrates vs. vertebrates) or depending on local characteristics, remains seldom explored. We evaluated for 8 yrs the patterns of seed production in antarctic beech (Nothofagus antarctica) forests related to management and its influence on insect and bird pre-dispersal seed predation. Along the study, mature seed production was highly variable across years (the population-level coefficient of variation, CVp: 0.98–1.14) and spatially synchronized (Pearson correlation coefficient: 0.83–0.86). Forest type (primary unmanaged, secondary-growth and managed stands) did not influence the amount of seed production nor masting patterns. Mean yearly seed predation by insects was higher than by birds, and their relationship with seeding patterns differed: i.e., while the proportion of seeds predated by insects increased during non-mast years maximum bird predation occurred in mast years. Therefore, predation by insects and birds showed a strong negative relationship. Our results suggest that effectiveness of masting to escape seed predators may be highly depend on the type of predator. We address whether this effect may be due to differences in life history traits among the seed predators involved (i.e., degree of host specificity, dispersal ability or the duration of the life-cycle) and whether an “imperfect” control of avian seed predation may partially be advantageous for the dynamics of the masting species to enhance seed dispersal. EEA Santa Cruz Fil: Soler Esteban, Rosina Matilde. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentina Fil: Espelta, Josep Maria. Centro de Investigación Ecológica y Aplicaciones Forestales (CREAF); España Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentina Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro Austral de Investigaciones Cientificas; Argentina 2018-07-05T12:21:41Z 2018-07-05T12:21:41Z 2017-09-15 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0378112717305686 http://hdl.handle.net/20.500.12123/2729 0378-1127 https://doi.org/10.1016/j.foreco.2017.06.014 eng info:eu-repo/semantics/restrictedAccess application/pdf Forest Ecology and Management 400 : 173-180 (September 2017) |
| spellingShingle | Nothofagus Producción de Semillas Depredación Pájaros Depredadores Insectos Depredadores Ordenación Forestal Seed Production Predation Predatory Birds Predatory Insects Forest Management Nothofagus antarctica Soler Esteban, Rosina Matilde Espelta, Josep Maria Lencinas, María Vanessa Peri, Pablo Luis Martínez Pastur, Guillermo José Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title | Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title_full | Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title_fullStr | Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title_full_unstemmed | Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title_short | Masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| title_sort | masting has different effects on seed predation by insects and birds in antarctic beech forests with no influence of forest management |
| topic | Nothofagus Producción de Semillas Depredación Pájaros Depredadores Insectos Depredadores Ordenación Forestal Seed Production Predation Predatory Birds Predatory Insects Forest Management Nothofagus antarctica |
| url | https://www.sciencedirect.com/science/article/pii/S0378112717305686 http://hdl.handle.net/20.500.12123/2729 https://doi.org/10.1016/j.foreco.2017.06.014 |
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