Pollination of Blumenbachia amana (Loasaceae): flower morphology and partitioned pollen presentation guarantee a private reward to a specialist pollinator

Siriani‐Oliveira, Samuel; Oliveira, Reisla; Schlindwein, Clemens

doi:10.1093/biolinnean/bly061

Cited by 16 publications

(7 citation statements)

References 27 publications

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“…Plants evolved a range of specialised biomechanical adaptations to regulate access to rewards and optimise pollen transfer (Figure 2), including keel flowers 35 , lever-mechanism flowers 36,37 , trigger flowers 38,39 , explosive pollen release 40,41 , heteranthery 42 , and buzz-pollinated flowers 43 . For example, keel flowers present in many Fabaceae and Polygalaceae require floral visitors to exert a significant amount of force to access nectar and pollen rewards 37,44 .…”

Section: Morphological Gate Keeping Of Floral Rewards and How To Access Themmentioning

confidence: 99%

Mutualisms and (A)symmetry in Plant–Pollinator Interactions

2021

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Section: Morphological Gate Keeping Of Floral Rewards and How To Access Themmentioning

confidence: 99%

Mutualisms and (A)symmetry in Plant–Pollinator Interactions

2021

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“…The Neopasiphaeinae are a morphologically diverse group of bees ranging in size from 6–18 mm in length, and there are over 400 described species, occurring mainly in subtropical and temperate dry biomes of South America and Australia (Almeida et al, ). Neopasiphaeinae may represent a primarily specialist bee clade (Almeida et al, ; Wcislo & Cane, ) and the subfamily does include examples of narrow oligolectic taxa (Almeida & Gibran, ; Carvalho & Schlindwein, ; Gimenes, ; Houston, ; Laroca, Michener, & Hoffmeister, ; Schlindwein, ; Siriani‐Oliveira, Oliveira, & Schlindwein, ).…”

Section: Introductionmentioning

confidence: 99%

The diversification of neopasiphaeine bees during the Cenozoic (Hymenoptera: Colletidae)

et al. 2018

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The biogeography of colletid bees as a whole can be explained by several South American-Australian trans-Antarctic interchanges. Within Colletidae, neopasiphaeine bees form a large group that has not been adequately studied, even though they are interesting both from the biogeographical viewpoint for fitting well the austral Gondwanan track and for their associations to host plants. The present paper integrates phylogenetic, biogeographic and paleontological data to reconstruct the evolutionary history of Neopasiphaeinae, with special emphasis on the New World taxa, relating the evolution of these bees to changes, such as the Andes uplift and expansion of open vegetation biomes. First, we propose a phylogenetic hypothesis for the Neopasiphaeinae using one mitochondrial and five nuclear loci. Phylogenetic relationships and divergence time estimation were simultaneously inferred in a Bayesian framework, and the tempo of neopasiphaeine diversification was investigated using lineage-through-time plots. The historical biogeography of neopasiphaeine bees was investigated in a likelihood framework. The clade represented by Neopasiphaeinae is strongly supported within Colletidae, and the bulk of their genera can be divided into two major sister-clades that diverged during the Eocene: one endemic to the Australian region and the other to the Neotropical region. Divergence times among most neotropical genera of Neopasiphaeinae indicate that they differentiated and started their diversification during the Miocene. Our results depict a complex process of geographic evolution in the Neotropical clade, which probably relates to important changes in the neotropical climates and biota beginning at the Oligocene and became more marked in the Miocene. We present a scenario of the neotropical Neopasiphaeinae initially associated with areas of open vegetation in subtropical and temperate portions of South America, followed by multiple separations of lineages east and west of the Andes, and more recent occupations of habitats in tropical portions of the continent. K E Y W O R D S Australia, biogeography, Colletinae, Neotropics, Paracolletinae, phylogeny | 227 ALMEIDA Et AL.

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“…One strategy to improve male reproductive success for plants is pollen partitioning. This can result in exclusive bee-plant interactions where only the specialised pollinator is granted a pollen reward (Siriani-Oliveira et al 2018), but obligate mutual specialisations in plant-pollinator relationships are very rare (Cane 2018). In the generalist Asteraceae, pollen partitioning through successively opening florets ensures that not one single flower visitor like H .…”

Section: Discussionmentioning

confidence: 99%

Pollinator effectiveness of a specialist bee exploiting a generalist plant—tracking pollen transfer by Heriades truncorum with quantum dots

et al. 2019

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Heriades truncorum (Megachilidae) is a specialist bee that forages on Asteraceae and collects pollen by tapping its abdomen on pollen-presenting florets which places the grains directly in the ventral scopa. We tracked pollen transfer by female H . truncorum between conspecific inflorescences of Inula ensifolia and Pulicaria dysenterica by labelling pollen with quantum dots. On average, bees transferred 31.14 (I . ensifolia ) and 9.96 (P. dysenterica ) pollen grains from the last visited inflorescence, 39% and 45% of which were placed on receptive styles. Pollen germination ratio is significantly lower for inflorescences of P. dysenterica visited by one H . truncorum (0.13%) compared with open control inflorescences (0.51%), which suggests that the bees mainly transfer self-pollen of these self-incompatible plants. Thus, a single visit by H . truncorum does not grant the plant high reproductive success, but the bees' abundance and flower constancy might reduce this disadvantage.Asteraceae / oligolecty / plant-pollinator interaction / pollen germination rate / single-visit deposition

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Pollination of Blumenbachia amana (Loasaceae): flower morphology and partitioned pollen presentation guarantee a private reward to a specialist pollinator

Cited by 16 publications

References 27 publications

Mutualisms and (A)symmetry in Plant–Pollinator Interactions

Mutualisms and (A)symmetry in Plant–Pollinator Interactions

The diversification of neopasiphaeine bees during the Cenozoic (Hymenoptera: Colletidae)

Pollinator effectiveness of a specialist bee exploiting a generalist plant—tracking pollen transfer by Heriades truncorum with quantum dots

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