Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina
Ramorinoa girolae Speg. is a “vulnerable” tree endemic to Argentina. During the pre-dispersal stage, the seeds are predated by Anypsipyla univitella. The objectives of this study were to describe some reproductive parameters (size and number of fruits and seeds) of R. girolae, to quantify pre-disper...
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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
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Sociedad Argentina de Botánica
2015
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/12917 |
| Aporte de: |
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I10-R325-article-12917 |
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ojs |
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Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Inglés |
| format |
Artículo revista |
| topic |
Aborto de semillas Anypsipyla univitella número de semillas producción de frutos tamaño de frutos viabilidad. Anypsipyla univitella fruit production fruit size seed abortion seeds per fruit seed viability. |
| spellingShingle |
Aborto de semillas Anypsipyla univitella número de semillas producción de frutos tamaño de frutos viabilidad. Anypsipyla univitella fruit production fruit size seed abortion seeds per fruit seed viability. Papú, Sofía Lagos Silnik, Susana Campos, Claudia M. Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| topic_facet |
Aborto de semillas Anypsipyla univitella número de semillas producción de frutos tamaño de frutos viabilidad. Anypsipyla univitella fruit production fruit size seed abortion seeds per fruit seed viability. |
| author |
Papú, Sofía Lagos Silnik, Susana Campos, Claudia M. |
| author_facet |
Papú, Sofía Lagos Silnik, Susana Campos, Claudia M. |
| author_sort |
Papú, Sofía |
| title |
Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| title_short |
Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| title_full |
Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| title_fullStr |
Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| title_full_unstemmed |
Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina |
| title_sort |
pre- dispersal seed loss of ramorinoa girolae (fabaceae) in ischigualasto provincial park (san juan, argentina |
| description |
Ramorinoa girolae Speg. is a “vulnerable” tree endemic to Argentina. During the pre-dispersal stage, the seeds are predated by Anypsipyla univitella. The objectives of this study were to describe some reproductive parameters (size and number of fruits and seeds) of R. girolae, to quantify pre-dispersal seed loss by abortion and predation, and to test the effect on pre-dispersal seed predation of fruit production (per tree, of co-specific neighbors, and the sum of both), size of fruits, number of seeds per fruit, and number of predators per fruit. As seeds can be partially consumed by the predator, the viability of partially damaged seeds was assessed as well. At Ischigualasto Park, we sampled 17 adult trees from 3 stands spaced 4 km apart. For each focal tree, we quantified the number of co-specific neighbors and their fruits. We collected ten fruits from canopies and recorded their length and the number and states of seeds (intact, predated, and aborted). Generalized Linear Mixed Models were fitted to evaluate explanatory variables affecting the proportion of pre-dispersal predated seeds. R. girolae suffers great loss of seeds during the pre-dispersal stage, mainly by seed predation (58% of seeds). The proportion of predated seeds was most important relative to the number of predators, the number of seeds per fruit, and the size of fruits. Fruits containing more predators, more seeds, and smaller fruits had higher proportions of predated seeds. Seed abortion would not represent an important factor of seed loss (6% of seeds |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2015 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/12917 |
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2024-09-03T22:48:29Z |
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I10-R325-article-129172020-03-09T18:01:48Z Pre- dispersal seed loss of Ramorinoa girolae (Fabaceae) in Ischigualasto Provincial Park (San Juan, Argentina Pérdida pre-dispersiva de semillas de Ramorinoa girolae Speg. (Fabaceae) en el Parque Provincial Ischigualasto (San Juan, Argentina). Papú, Sofía Lagos Silnik, Susana Campos, Claudia M. Aborto de semillas Anypsipyla univitella número de semillas producción de frutos tamaño de frutos viabilidad. Anypsipyla univitella fruit production fruit size seed abortion seeds per fruit seed viability. Ramorinoa girolae Speg. is a “vulnerable” tree endemic to Argentina. During the pre-dispersal stage, the seeds are predated by Anypsipyla univitella. The objectives of this study were to describe some reproductive parameters (size and number of fruits and seeds) of R. girolae, to quantify pre-dispersal seed loss by abortion and predation, and to test the effect on pre-dispersal seed predation of fruit production (per tree, of co-specific neighbors, and the sum of both), size of fruits, number of seeds per fruit, and number of predators per fruit. As seeds can be partially consumed by the predator, the viability of partially damaged seeds was assessed as well. At Ischigualasto Park, we sampled 17 adult trees from 3 stands spaced 4 km apart. For each focal tree, we quantified the number of co-specific neighbors and their fruits. We collected ten fruits from canopies and recorded their length and the number and states of seeds (intact, predated, and aborted). Generalized Linear Mixed Models were fitted to evaluate explanatory variables affecting the proportion of pre-dispersal predated seeds. R. girolae suffers great loss of seeds during the pre-dispersal stage, mainly by seed predation (58% of seeds). The proportion of predated seeds was most important relative to the number of predators, the number of seeds per fruit, and the size of fruits. Fruits containing more predators, more seeds, and smaller fruits had higher proportions of predated seeds. Seed abortion would not represent an important factor of seed loss (6% of seeds Pérdida pre-dispersiva de semillas de Ramorinoa girolae Speg. (Fabaceae) en el Parque Provincial Ischigualasto (San Juan, Argentina). Ramorinoa girolae es una especie “vulnerable” endémica de Argentina, cuyas semillas son depredadas por Anypsipyla univitella durante la etapa pre-dispersiva. El objetivo de este estudio fue describir algunos parámetros reproductivos (tamaño y número de frutos y semillas) de R. girolae, cuantificar la pérdida de semillas por aborto y depredación durante la etapa predispersiva y evaluar el efecto que tienen factores como la producción de frutos (por árbol, de los vecinos co-específicos y la suma de ambos), tamaño del fruto, número de semillas por fruto y número de depredadores por fruto sobre la depredación pre-dispersiva. Además, se analizó la viabilidad de las semillas consumidas parcialmente. En el Parque Provincial Ischigualasto, se trabajó con 17 individuos adultos de tres subpoblaciones separadas 4 km. Para cada árbol focal, se cuantificó el número de vecinos co-específicos y la producción de frutos. Se colectaron diez frutos de la copa de cada árbol focal y se midió su longitud y el número y estado de las semillas (intactas, depredadas y abortadas). Se construyeron Modelos Lineales Generalizados Mixtos para evaluar cuáles son las variables que mejor explican la proporción de semillas depredadas. R. girolae sufre una importante pérdida de semillas durante la etapa pre-dispersiva, principalmente debido a la depredación por A. univitella (58%). La proporción de semillas depredadas se relaciona principalmente con el número de depredadores, el número de semillas por fruto y el tamaño del fruto. Las mayores proporciones de semillas depredadas se encontraron en frutos que contenían más depredadores, más semillas por fruto y frutos de menor tamaño. El aborto de semillas no representaría un importante factor de pérdida de semillas (6%). Sociedad Argentina de Botánica 2015-12-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/12917 10.31055/1851.2372.v50.n4.12917 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 50 No. 4 (2015): December; 585-594 Boletín de la Sociedad Argentina de Botánica; Vol. 50 Núm. 4 (2015): Diciembre; 585-594 Boletín de la Sociedad Argentina de Botánica; v. 50 n. 4 (2015): Diciembre; 585-594 1851-2372 0373-580X 10.31055/1851.2372.v50.n4 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/12917/13131 Derechos de autor 2015 Boletín de la Sociedad Argentina de Botánica |