Difference in flowering time can initiate speciation of nocturnally flowering species

Matsumoto, T.; Yasumoto, Akiko A.; Nitta, Kozue; Hirota, Shun K.; Yahara, Tetsukazu; Tachida, Hidenori

doi:10.1016/j.jtbi.2015.01.036

Cited by 13 publications

(6 citation statements)

References 45 publications

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“…Thus, only a subset of all possible buzzing bees interacts with certain plant species. Other co-flowering species, like those of the genera Acacia, Avicennia, Laguncularia, Ipomoea, Ophrys and Vigna, also avoid pollinator sharing (Gögler et al, 2015;Landry, 2012;Matsumoto et al, 2015;Queiroz, Quirino, & Machado, 2015;Souza, Snak, & Varassin, 2017;Stone, Willmer, & Rowe, 1998). Pollination efficiency should decrease when flowers of different plant species are visited by the same pollinator species in the same period, leading to a reduction in flower visitation rates for each plant species (Fishbein & Venable, 1996;Waser & Fugate, 1986;Waser, 1978aWaser, , 1978b and to heterospecific pollen flow (Ashton, Givnish, & Appanah, 1988).…”

Section: Subsets Of Interacting Speciesmentioning

confidence: 99%

Flowers with poricidal anthers and their complex interaction networks—Disentangling legitimate pollinators and illegitimate visitors

2018

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In flowers with poricidal anthers, pollen is not freely accessible and legitimate access is restricted to bees capable of vibrating the anthers. Despite the protection of pollen provided by poricidal anthers, numerous illegitimate, non‐buzz‐pollinating flower visitors rob pollen. We aimed to quantify the influence of functional groups of floral visitors and illegitimate interactions on the network structure to disentangle the flower visitor network into its mutualistic and antagonistic components. We delimited three functional groups of bees based on their pollen collection behaviour in poricidal flowers: large bees that vibrate entire flowers in a single buzzing position (flower buzzing), bees vibrating single anthers in different positions (anther buzzing) and non‐vibrating flower‐damaging or gleaning bees (non‐buzzing). Moreover, we characterized legitimate and illegitimate interactions of co‐occurring and co‐flowering plants and their flower visitors based on the stigma contact during a visit. Since we independently assessed the type of interaction with bee–plant species combinations, we were able to include the behavioural variations of each bee species across different flowers. The networks were modular, with stronger interactions within subsets of species than among the subsets. All modules included a combination of flower‐, anther‐ and non‐buzzing bees, and mutualistic and antagonistic networks were intermingled. Seven bee species shifted their roles across plant species. Specialization in the subset of interactions with pollinators was higher than the overall visitation network. Flower‐buzzing bees were more specialized than anther‐buzzing and non‐buzzing bees, which used virtually all poricidal flowers similarly. Although plants with poricidal anthers shared a specialized mechanism of pollen release, their pollinators were highly dissimilar and formed compartments of interacting species. The interaction‐level approach taken in our study confers a high specificity to the pollinator network, leading to a more complex and realistic picture of mutualistic webs versus its embedded florivory, which are otherwise confounded in pooled networks across flower visitors. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.13204/suppinfo is available for this article.

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Section: Subsets Of Interacting Speciesmentioning

confidence: 99%

Flowers with poricidal anthers and their complex interaction networks—Disentangling legitimate pollinators and illegitimate visitors

2018

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“…Reproductive isolation, particularly prezygotic isolation, is an important aspect of ecological speciation (Lowry et al, 2008;Baack et al, 2015). For example, a shift from diurnal to nocturnal flowering may be effective in generating new species, when the difference in flowering time promotes assortative mating even in a sympatric situation (Hirota et al, 2012;Matsumoto et al, 2015). Similarly, gene flow can be controlled by the timing of snowmelt in alpine zones, leading to a correlation between flowering time difference and genetic distances even over distances of several hundred metres to kilometres (Hirao & Kudo, 2004, 2008.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous evaluation of the effects of geographic, environmental and temporal isolation in ecotypic populations ofSolidago virgaurea

et al. 2017

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Early stages of ecological speciation can create populations with an ecology and reproduction timing distinct from those of related populations. Landscape genetic models incorporating environmental heterogeneity and population-specific reproductive traits enable the processes of population genetic differentiation to be inferred. We investigated genome-wide genetic variation in ecotypic populations of Solidago virgaurea sensu lato, a herbaceous plant inhabiting a wide range of habitats (woodlands, serpentine barrens and alpine grasslands) and displaying remarkable variation in flowering time. Simultaneous evaluation of environmental factors revealed an overwhelming effect of soil type differences on neutral genetic differentiation, compared with elevational differences. This result probably reflects the abrupt environmental changes generated by geological boundaries, whereas mountain slopes exhibit clinal changes, facilitating gene exchange between neighbouring populations. Temporal isolation was positively associated with genetic differentiation, with some early-flowering serpentine populations having allele frequencies distinct from adjacent nonserpentine populations. Overall, this study highlights the importance of ecological processes and of evolution of flowering time to promote genetic differentiation of S. virgaurea populations in a complex landscape.

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“…Furthermore, several studies indicate that the timing of pollination throughout the day has minimal impact on pollination outcomes, as demonstrated through timed hand pollination experiments (Haber and Franke 1982, Kwak and Jennersten 1986, Wolff et al 2003, Martins et al 2020). As such, our results contend that nocturnal anthesis likely represents an adaptive strategy, alongside other traits which affect pollinator preference such as odour and colour (Matsumoto et al 2015) due to the improved pollinator efficiency of nocturnal pollinators for these plant species.…”

Section: Discussionmentioning

confidence: 50%

Pollination across the diel cycle: a global meta-analysis

Kendall,

Nicholson

2024

Preprint

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The daily transition between day and night, known as the diel cycle, is characterised by significant shifts in environmental conditions and biological activity, both of which can affect crucial ecosystem functions like pollination. Yet, despite over six decades of research into whether plant reproductive success varies between day and night, consensus remains elusive. We compiled and analysed the evidence of diel pollination differences from 135 studies with pollinator exclusion experiments across 139 angiosperms using phylogenetically controlled multilevel meta-analytic models and tested the influence of environmental conditions and plant functional traits. Our synthesis revealed an overall lack of difference in pollination success between day and night, suggesting generalization across the diel cycle. However, diel variation was partially explained by elevation, such that nocturnal pollination success was greater at low elevations, whereas diurnal pollination was more beneficial at higher elevations. Furthermore, plant traits related to pollinator attraction (odour, colour), and anthesis time influenced diel variation in pollination success. In the light of increasing anthropogenic pressures on biodiversity, as well as unique challenges for nocturnal biota, this synthesis underscores the complementarity of pollinators for flowering plants across the diel cycle, and the importance of considering both nocturnal and diurnal pollinators in conservation efforts.

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Difference in flowering time can initiate speciation of nocturnally flowering species

Cited by 13 publications

References 45 publications

Flowers with poricidal anthers and their complex interaction networks—Disentangling legitimate pollinators and illegitimate visitors

Flowers with poricidal anthers and their complex interaction networks—Disentangling legitimate pollinators and illegitimate visitors

Simultaneous evaluation of the effects of geographic, environmental and temporal isolation in ecotypic populations ofSolidago virgaurea

Pollination across the diel cycle: a global meta-analysis

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