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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Interactions between oil-collecting bees and Krameria grandiflora (Krameriaceae) with emphasis on the role of specialized floral traits in the mutual fit

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Autor(es):
Carneiro, Liedson Tavares [1, 2] ; Danny Silva Andre, Camila Barbara [3] ; Takahasi, Adriana [3] ; Alves-dos-Santos, Isabel [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Ecol, Inst Biociencias, Rua Matao, 321 Trav 14, Cid Univ, BR-05508090 Sao Paulo, SP - Brazil
[2] Univ Fed Alfenas, Inst Ciencias Nat, Rua Gabriel Monteiro da Silva 306V-H, BR-37130001 Alfenas, MG - Brazil
[3] Univ Fed Mato Grosso do Sul, Ciencias Biol, Campus Pantanal, Ave Rio Branco 1270, BR-79304020 Corumba, MS - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo de Revisão
Fonte: ARTHROPOD-PLANT INTERACTIONS; v. 13, n. 2, SI, p. 213-226, APR 2019.
Citações Web of Science: 0
Resumo

Oil-producing flowers have evolved specialized traits along with the ability to secrete oil as reward, leading to the expectation of a narrow relationship between floral architecture and oil-collecting behaviours of pollinators. Krameriaceae flowers have a showy calyx and a less conspicuous dimorphic corolla modified into a pair of elaiophores that secrete the oil, and a group of petaloid petals that, among oil-collecting bees, are used by only Centris (Centridini) during the oil gathering. A manipulative experiment consisted of excising these floral parts to test the prediction that these structures contribute to successful oil gathering by the bees and plant reproduction. We surveyed the oil-collecting bees associated with the Krameria grandiflora A. St.-Hil. across its distribution range and performed the experiment in populations associated with two different oil-collecting bee taxa-Caenonomada (Tapinotaspidini) and Centris, the main pollinators. Although predicted to mediate the floral mechanical fit with Centris, the absence of the petaloid petals had a neutral effect on both oil-gathering behaviour and seed set, when comparing Caenonomada and Centris. A negative effect on these responses was found when the elaiophores were excised, indicating that these glands have greater importance than the petals related to the mutual fit between flowers and pollinators. However, the petaloid petals seemed to function jointly with the sepals in pollinator attraction. When the sepals were excised, only Centris behaviour was affected, but not that of Caenonomada, indicating potentially divergent selective pressures on the calyx. In addition, we provide a novel oil host plant for several oil-collecting bees. (AU)

Processo FAPESP: 13/00181-5 - Estrutura Èm mosaico geográfico da interação entre espécies dè Krameria Loefl. (Krameriaceae) e abelhas coletoras dè óleo
Beneficiário:Liedson Tavares de Sousa Carneiro
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 04/00274-4 - Abelhas coletoras de óleo: biologia, relação com plantas, análise química e morfologia funcional
Beneficiário:Isabel Alves dos Santos
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores