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| Format: | Artículo científico |
| Sprache: | en |
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Universidad de Costa Rica
2015
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| author | Edivani Villaron Franceschinelli |
| author_facet | Edivani Villaron Franceschinelli |
| contents | Reproductive success of Cabralea canjerana (Meliaceae) in Atlantic forest fragments, Brazil Edivani Villaron Franceschinelli Roselaini Mendes do Carmo Carlos de Melo e Silva Neto Bruno Bastos Gonçalves Leonardo Lima Bergamini Biología pre plant moth pol lination seed set In Brazil, the Atlantic forest remnants have high biological diversity and a high level of endemism, but very little is known about the reproductive success of native species. Cabralea canjerana is a common tree in the Montane Atlantic forest, and its reproduction is highly dependent on pollinators. In order to contribute with the particular knowledge on this species, we collected data in three fragmented and three continuous forest sites, where the effects of fragmentation on both mutualistic (pollination) and antagonistic (seed predation) interac - tions were analysed. We determined fruit production and weight of 25 trees per site. The number of seeds and the percentage of predated and aborted seeds were also accessed for seven fruits of 10 trees per site. Pollinator visitation frequencies to flowers were recorded in two forest fragments and in two sites of the continuous forest. Our data showed that plants of C. canjerana produced more fruits (z-value=-8.24; p<0.0001) and seeds per fruit (z-value=-6.58; p=0.002) in the continuous than in the fragmented sites. This was likely due to differences in pollination, because the number of pollinator visits was higher in the continuous forest than in the fragments. Seed abortion (z-value=4.08, p<0.001) and predation (z-value=3.72, p=0.0002), on the other hand, were higher in the fragmented than in the continuous sites. Then, mutualistic and antagonistic interactions were affected by fragmentation, decreasing the reproductive success of the study tree. This study was the first to show a decrease in the reproductive output in forest fragments in an Atlantic forest tree species. This decrease may threaten the population structure and viability of C. canjerana in forest fragments. Rev. Biol. Trop. 63 (2): 515-524. Epub 2015 June 01. 2015 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44938603014 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.63 |
| format | Artículo científico |
| id | redalyc_44938603014 |
| language | en |
| publishDate | 2015 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Reproductive success of Cabralea canjerana (Meliaceae) in Atlantic forest fragments, Brazil Edivani Villaron Franceschinelli Biología pre plant moth pol lination seed set Reproductive success of Cabralea canjerana (Meliaceae) in Atlantic forest fragments, Brazil Edivani Villaron Franceschinelli Roselaini Mendes do Carmo Carlos de Melo e Silva Neto Bruno Bastos Gonçalves Leonardo Lima Bergamini Biología pre plant moth pol lination seed set In Brazil, the Atlantic forest remnants have high biological diversity and a high level of endemism, but very little is known about the reproductive success of native species. Cabralea canjerana is a common tree in the Montane Atlantic forest, and its reproduction is highly dependent on pollinators. In order to contribute with the particular knowledge on this species, we collected data in three fragmented and three continuous forest sites, where the effects of fragmentation on both mutualistic (pollination) and antagonistic (seed predation) interac - tions were analysed. We determined fruit production and weight of 25 trees per site. The number of seeds and the percentage of predated and aborted seeds were also accessed for seven fruits of 10 trees per site. Pollinator visitation frequencies to flowers were recorded in two forest fragments and in two sites of the continuous forest. Our data showed that plants of C. canjerana produced more fruits (z-value=-8.24; p<0.0001) and seeds per fruit (z-value=-6.58; p=0.002) in the continuous than in the fragmented sites. This was likely due to differences in pollination, because the number of pollinator visits was higher in the continuous forest than in the fragments. Seed abortion (z-value=4.08, p<0.001) and predation (z-value=3.72, p=0.0002), on the other hand, were higher in the fragmented than in the continuous sites. Then, mutualistic and antagonistic interactions were affected by fragmentation, decreasing the reproductive success of the study tree. This study was the first to show a decrease in the reproductive output in forest fragments in an Atlantic forest tree species. This decrease may threaten the population structure and viability of C. canjerana in forest fragments. Rev. Biol. Trop. 63 (2): 515-524. Epub 2015 June 01. 2015 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44938603014 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.2 Vol.63 |
| title | Reproductive success of Cabralea canjerana (Meliaceae) in Atlantic forest fragments, Brazil |
| topic | Biología pre plant moth pol lination seed set |
| url | https://www.redalyc.org/articulo.oa?id=44938603014 |