Articles | Volume 14, issue 1
https://doi.org/10.5194/we-14-79-2014
https://doi.org/10.5194/we-14-79-2014
Standard article
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14 Jan 2015
Standard article |  | 14 Jan 2015

Reproductive ecology of buzz-pollinated Ouratea spectabilis trees (Ochnaceae) in Brazilian Cerrados

D. Montesinos and P. Oliveira

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Short summary
Ouratea spectabilis is a tree in the Brazilian savannas, or cerrados. Only a few specialized insects can produce the specific vibrations to liberate their pollen, in what is known as "buzz pollination". It is self-incompatible, and self-pollination reduced fertility to the level of interspecific crosses with co-generic species. Pollen viability was high, but in spite of pollen supplementation seed-to-ovule ratios were never over 30%, likely because of environmental stress.