Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina
At a regional scale, habitat heterogeneity can play a very important role in allowing the coexistence of species through their specialization in the use of patches differing in environmental conditions. Here, we explore responses of seed germination to environmental and anthropogenic factors of five...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Wiley
2019
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| Online Access: | http://hdl.handle.net/20.500.12123/4710 https://esj-journals.onlinelibrary.wiley.com/doi/full/10.1111/1442-1984.12134 https://doi.org/10.1111/1442-1984.12134 |
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| author | Venier, Maria Paula Cabido, Marcelo Ruben Funes, Guillermo |
| author_browse | Cabido, Marcelo Ruben Funes, Guillermo Venier, Maria Paula |
| author_facet | Venier, Maria Paula Cabido, Marcelo Ruben Funes, Guillermo |
| author_sort | Venier, Maria Paula |
| collection | INTA Digital |
| description | At a regional scale, habitat heterogeneity can play a very important role in allowing the coexistence of species through their specialization in the use of patches differing in environmental conditions. Here, we explore responses of seed germination to environmental and anthropogenic factors of five Acacia species that co‐occur in subtropical dry Chaco forests in central Argentina and the habitat heterogeneity of this region. Open and closed sites were characterized in terms of environmental factors by measuring temperature, water content, light quality and soil conditions. Through germination experiments, we evaluated seed responses to both environmental (temperature, light quality and water stress) and anthropogenic factors (fire and cattle). Data were analyzed through a univariate analysis (generalized linear model, GLM) followed by a multivariate analysis (principal component analysis, PCA) in order to obtain a general pattern of Acacia seed responses. Some differences were detected among the Acacia species at the species level and the multivariate analysis (PCA) showed a general pattern with two groups of species differing in germination characteristics: A. aroma, A. caven and A. atramentaria had a higher number of hard seeds after fire and seed consumption by cattle, whereas A. praecox and A. gilliesii showed a reduced time to germinate under different environmental conditions. The multivariate analysis suggests a regenerative niche differentiation between two groups of Acacia species. The habitat heterogeneity described in the dry Chaco forests from central Argentina could facilitate the coexistence of the five Acacia species at the landscape and regional levels. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4710 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA47102019-06-26T12:26:54Z Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina Venier, Maria Paula Cabido, Marcelo Ruben Funes, Guillermo Acacia Bosques Forests Zona Subtropical Germinación de las Semillas Especies Subtropical Zones Seed Germination Species Chaco Niche Differentiation At a regional scale, habitat heterogeneity can play a very important role in allowing the coexistence of species through their specialization in the use of patches differing in environmental conditions. Here, we explore responses of seed germination to environmental and anthropogenic factors of five Acacia species that co‐occur in subtropical dry Chaco forests in central Argentina and the habitat heterogeneity of this region. Open and closed sites were characterized in terms of environmental factors by measuring temperature, water content, light quality and soil conditions. Through germination experiments, we evaluated seed responses to both environmental (temperature, light quality and water stress) and anthropogenic factors (fire and cattle). Data were analyzed through a univariate analysis (generalized linear model, GLM) followed by a multivariate analysis (principal component analysis, PCA) in order to obtain a general pattern of Acacia seed responses. Some differences were detected among the Acacia species at the species level and the multivariate analysis (PCA) showed a general pattern with two groups of species differing in germination characteristics: A. aroma, A. caven and A. atramentaria had a higher number of hard seeds after fire and seed consumption by cattle, whereas A. praecox and A. gilliesii showed a reduced time to germinate under different environmental conditions. The multivariate analysis suggests a regenerative niche differentiation between two groups of Acacia species. The habitat heterogeneity described in the dry Chaco forests from central Argentina could facilitate the coexistence of the five Acacia species at the landscape and regional levels. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Venier, Maria Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Funes, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina 2019-03-22T17:11:43Z 2019-03-22T17:11:43Z 2017-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/4710 https://esj-journals.onlinelibrary.wiley.com/doi/full/10.1111/1442-1984.12134 1442-1984 (Online) https://doi.org/10.1111/1442-1984.12134 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Plant species biology 32 (2) : 134–146. (April 2017) |
| spellingShingle | Acacia Bosques Forests Zona Subtropical Germinación de las Semillas Especies Subtropical Zones Seed Germination Species Chaco Niche Differentiation Venier, Maria Paula Cabido, Marcelo Ruben Funes, Guillermo Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title | Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title_full | Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title_fullStr | Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title_full_unstemmed | Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title_short | Germination characteristics of five coexisting neotropical species of Acacia in seasonally dry Chaco forests in Argentina |
| title_sort | germination characteristics of five coexisting neotropical species of acacia in seasonally dry chaco forests in argentina |
| topic | Acacia Bosques Forests Zona Subtropical Germinación de las Semillas Especies Subtropical Zones Seed Germination Species Chaco Niche Differentiation |
| url | http://hdl.handle.net/20.500.12123/4710 https://esj-journals.onlinelibrary.wiley.com/doi/full/10.1111/1442-1984.12134 https://doi.org/10.1111/1442-1984.12134 |
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