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Reproductive success of Cardiopetalum calophyllum (Annonaceae) treelets in fragments of Brazilian savanna

  • Marcos Antônio da Silva Elias (a1), Edivani Villaron Franceschinelli (a1), Leandro Juen (a2), Fábio Julio Alves Borges (a3), Glalko Machado Ferreira (a4) and Fábio Martins Vilar de Carvalho (a5)...

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Habitat fragmentation may affect essential ecosystem processes, such as pollination, causing negative effects on plants and pollinators (Aizen & Feinsinger 1994, Jennersten 1988, Lennartsson 2002, Liow et al. 2001, Murcia 1996). Effects of fragmentation on plant–pollinator interaction were evaluated in several studies (Aguirre & Dirzo 2008, Dauber et al. 2010, Dick 2001, Donaldson et al. 2002, Dunley et al. 2009, Fuchs et al. 2003, Ghazoul & McLeish 2001, Lopes & Buzato 2007). The Brazilian savanna, called cerrado, has been fragmented due in large part to extensive agricultural activity (Carvalho et al. 2009). Studies with the main objective of evaluating the influence of fragment size on ecosystem processes and on plant reproductive output has not been determined in cerrado. The plants of this type of vegetation seem to produce generally low number of fruits per flower (Gribel & Hay 1993, Munin et al. 2008, Ortiz et al. 2003). This may be due to the low soil fertility (Franco 2002, Haridasan 2000). But the recent fragmentation of this biome may reduce even more their plant reproductive success because it can increase the effect of pollination limitation and inbreeding caused by the habitat isolation and degradation.

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1Corresponding author. Email: edivanif@gmail.com

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Reproductive success of Cardiopetalum calophyllum (Annonaceae) treelets in fragments of Brazilian savanna

  • Marcos Antônio da Silva Elias (a1), Edivani Villaron Franceschinelli (a1), Leandro Juen (a2), Fábio Julio Alves Borges (a3), Glalko Machado Ferreira (a4) and Fábio Martins Vilar de Carvalho (a5)...

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