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  <controlfield tag="003">BR-BrBNA</controlfield>
  <controlfield tag="005">20250325100812.0</controlfield>
  <controlfield tag="008">250325b2016    bl.||||| |||| 00| 0 eng |</controlfield>
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    <subfield code="b">eng</subfield>
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    <subfield code="a">F63</subfield>
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    <subfield code="a">Fonseca, Lorena Coutinho Nery da </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Rech, Andr&#xE9; Rodrigo</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Bergamo, Pedro Joaquim </subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Esteves, Vania Gon&#xE7;alves</subfield>
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  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Sazima, Marlies </subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Heterospecific pollen deposition among plants sharing hummingbird pollinators in the Brazilian Atlantic Forest</subfield>
  </datafield>
  <datafield tag="500" ind1=" " ind2=" ">
    <subfield code="a">Publica&#xE7;&#xE3;o on-line; 44 ref.; 2 tables; 1 illus.; Summaries (En, Pt)</subfield>
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Abstract

Hummingbirds are the most important group of pollinating birds in the Neotropics and tend to use, concomitantly,
more than one plant species as food source. Pollen may be mixed on hummingbirds&#x2019; body due to the visits
to different plant species; therefore, these birds may promote heterospecific pollen deposition (HPD). The
hummingbirds potential to promote HPD, the occurrence of HPD and its implications in plant reproduction are
scarcely known in the Atlantic Forest. We have studied the transport of pollen by three hummingbird species
from the Brazilian Atlantic Forest. We have also checked the actual HPD occurrence under natural conditions
in two plant species, namely Canistropsis seidelii and Psychotria nuda. Moreover, we investigated Nidularium
innocentii reproductive system evaluating the effect of HPD on its reproduction by simulating a pollen mixture
pollination. We found hummingbirds transporting heterospecific pollen mixtures on their bodies, which in turn
were deposited onto stigmas of different species. We have also found that mixed pollen deposition had negative
effect on the fitness of N. innocentii. We conclude that hummingbirds carry pollen mixtures at the same body
parts, leading to potential HPD at the community level. Moreover, hummingbird-plant communities in the Atlantic
Rainforest show remarkable similarities in temporal organization and interaction pattern. This suggests that HPD
may be a widespread phenomena in these communities.

Key words: competition for pollination, fruit/seed set, pollen placement, pollen load, pollinator sharing, reproductive success.






Resumo

Beija-flores s&#xE3;o o grupo de aves polinizadoras mais importantes nos Neotr&#xF3;picos e tendem a utilizar, concomitantemente,
mais de uma esp&#xE9;cie de planta como fonte de alimento. O p&#xF3;len pode estar misturado no corpo dos beija-flores devido
&#xE0;s visitas em diferentes esp&#xE9;cies de plantas, portanto, essas aves podem promover deposi&#xE7;&#xE3;o de p&#xF3;len heterospec&#xED;fico
(DPH). O potencial dos beija-flores em promover DPH, a ocorr&#xEA;ncia de DPH e suas consequ&#xEA;ncias na reprodu&#xE7;&#xE3;o
das plantas s&#xE3;o pouco conhecidas na Mata Atl&#xE2;ntica. N&#xF3;s estudamos o transporte de p&#xF3;len por tr&#xEA;s esp&#xE9;cies de beija-flores 
da Mata Atl&#xE2;ntica brasileira. N&#xF3;s tamb&#xE9;m verificamos a ocorr&#xEA;ncia de DPH em condi&#xE7;&#xF5;es naturais em duas
esp&#xE9;cies de planta, Canistropsis seidelii e Psychotria nuda. Al&#xE9;m disso, n&#xF3;s investigamos o sistema reprodutivo de
Nidularium innocentii, avaliando o efeito de DPH em sua reprodu&#xE7;&#xE3;o ao simular uma poliniza&#xE7;&#xE3;o com mistura de
p&#xF3;len. N&#xF3;s encontramos beija-flores transportando misturas de p&#xF3;len heterospec&#xED;fico em seus corpos, que por sua
vez foram depositados nos estigmas de diferentes esp&#xE9;cies. N&#xF3;s tamb&#xE9;m encontramos que a deposi&#xE7;&#xE3;o de mistura
de p&#xF3;len tem um efeito negativo na aptid&#xE3;o de N. innocentii. N&#xF3;s concluimos que beija-flores carregam misturas de
p&#xF3;len na mesma regi&#xE3;o do corpo, levando a um potencial DPH ao n&#xED;vel da comunidade. Al&#xE9;m disso, comunidades
de plantas e beija-flores na Floresta Atl&#xE2;ntica exibem diversas similaridades em sua organiza&#xE7;&#xE3;o temporal e padr&#xE3;o
de intera&#xE7;&#xF5;es. Isso sugere que DPH pode ser um fen&#xF4;meno difundido nestas comunidades.

Palavras-chave: competi&#xE7;&#xE3;o pela poliniza&#xE7;&#xE3;o, produ&#xE7;&#xE3;o de frutos/sementes, deposi&#xE7;&#xE3;o de p&#xF3;len, carga pol&#xED;nica,
compartilhamento de polinizadores, sucesso reprodutivo.</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">POLINIZA&#xC7;&#xC3;O</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">P&#xD3;LEN</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">REPRODU&#xC7;&#xC3;O VEGETAL</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">BEIJA FLOR</subfield>
  </datafield>
  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">709</subfield>
    <subfield code="9">349362</subfield>
    <subfield code="d">Rio de Janeiro-RJ Jardim Botanico do Rio de Janeiro 1935</subfield>
    <subfield code="o">2025-1881</subfield>
    <subfield code="t">Rodrigu&#xE9;sia (Brazil)</subfield>
    <subfield code="x">0370-6583; 2175-7860 on-line</subfield>
    <subfield code="g">v. 67(2) p. 335-345; (2016)</subfield>
    <subfield code="w">BR2025000305</subfield>
  </datafield>
  <datafield tag="856" ind1=" " ind2=" ">
    <subfield code="u">https://www.scielo.br/j/rod/a/GBFCFdDXLpRWpZcj9y5Spsn/?format=pdf&amp;lang=en</subfield>
  </datafield>
  <datafield tag="942" ind1=" " ind2=" ">
    <subfield code="c">ANA</subfield>
  </datafield>
  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">330634</subfield>
    <subfield code="d">330634</subfield>
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