Pollination Systems in Paspalum dilatatum Poir. (Poaceae): An Example of Insect Pollination in a Temperate Grass

Adams, Dwight E.; Perkins, W. Ethen; Estes, James R.

doi:10.2307/2442775

Cited by 26 publications

(10 citation statements)

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“…The bulk of individuals are hyper-generalist foragers that visit flowers across many plant families, including Melissodes bimaculatus , Agapostemon virescens , and Lasioglossum spp., which dominate the few studies identifying bee species in non-pollinator-dependent crop systems [11,12,101,102]. Melissodes bimaculatus , honey bees, and halictid bees, in particular Lasioglossum , are known to use floral resources such as corn and grass pollen [103,104] that are typically avoided by other bees in the region.…”

Section: Discussionmentioning

confidence: 99%

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Buchanan

Gibbs

Komondy

et al. 2017

Insects

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We conducted a bee survey in neonicotinoid-treated commercial potato fields using bowl and vane traps in the 2016 growing season. Traps were placed outside the fields, at the field edges, and 10 and 30 m into the fields. We collected 756 bees representing 58 species, with Lasioglossum spp. comprising 73% of all captured bees. We found seven Bombus spp., of which B. impatiens was the only known visitor of potato flowers in our region. The majority of the bees (68%) were collected at the field edges and in the field margins. Blue vane traps caught almost four-times as many bees and collected 30% more species compared to bowl traps. Bee communities did not differ across trap locations but they were different among trap types. We tested B. impatiens visitation to neonicotinoid treated and untreated potato flowers in field enclosures. The amount of time bees spent at flowers and the duration of visits were not significantly different between the two treatments. Our results demonstrate that a diverse assemblage of bees is associated with an agroecosystem dominated by potatoes despite the apparent lack of pollinator resources provided by the crop. We found no difference in B. impatiens foraging behavior on neonicotinoid-treated compared to untreated plants.

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Section: Discussionmentioning

confidence: 99%

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Buchanan

Gibbs

Komondy

et al. 2017

Insects

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“…(Poaceae) produces about 2500 pollen grains per ovule. Visits of solitary bees to this species were observed to increase the seed set (Adams et al , 1981). The three species of bamboos in Phyllostachys are typically protogynous and male and female phases of flowers in the same inflorescence seldom overlap, effectively preventing self‐pollination.…”

Section: Discussionmentioning

confidence: 99%

“…Wind pollination has often been believed to be the usual pollination mechanism in bamboos, since they have inflorescences like those of other grasses (Janzen, 1976). However, previous studies have indicated that insects may play a role in pollination of some grasses (Adams et al , 1981; Proctor et al , 1996) and Janzen (1976) in a review of pollination records in bamboo stated, “there is a hint that bamboos may be at least in part insect‐pollinated”. In this paper, we report observations of honeybees frequently visiting the flowers of Phyllostachys nidularia in Central China in April 1999.…”

Section: Introductionmentioning

confidence: 99%

Honeybee-assisted wind pollination in bambooPhyllostachys nidularia(Bambusoideae: Poaceae)?

Huang

Yang

et al. 2002

Botanical Journal of the Linnean Society

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Floral syndromes and pollination of three species of Phyllostachys bamboos were studied in Central China in 1999 and 2000. All were protogynous. Stigmas were receptive and had pollen deposited on them 2 days before anther dehiscence. The period of anthesis in the three bamboos was 3 days. Individual pollen grains of the three species were similar in size (30–40 μm in diameter) and had features typical of wind‐pollinated plants. The ratios of pollen to ovules (p/o ratio) in P. nidularia, P. heteroclada and P. nuda were 6500, 12 700 and 33 000, respectively. Mean pollen loads on each flower (one ovule) of these three species were 7.3, 8.8 and 9.4 grains, respectively. Pollen transfer in P. heteroclada and P. nuda depended on wind, and no flower visitors were seen in the field. However, in P. nidularia, Apis cerana Fab. was a frequent pollen collector observed from 1200 to 1330 h. The visits undertaken by thousands of honeybees resulted in a large number of pollen grains being released from the anthers in a short time (10–15 min) in one day, which accelerated and synchronized the release of pollen from the anthers that seemed to enhance the chance of pollination. Given that honeybees played an indirect role in pollen transfer this could partly explain the low p/o ratio in P. nidularia. Reviewing the literature, we found insect visits to flowers of bamboos were not infrequent phenomena. We suggest pollination efficiency should be considered as one selective factor in attempts to understand mast flowering in bamboo. © 2002 The Linnean Society of London, Botanical Journal of the Linnean Society, 2002, 138, 1–7.

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“…Huang et al (2002) report visits of honeybees to Phyllostachys nidularia, and cite other references of insect visitors to bamboo flowers. Adams et al (1981) observed halictid bees visiting Paspalum dilatatum in south-central Oklahoma, and followed up with exclusion experiments; these showed that more pollen was transferred and more seed was set when flowers were exposed to bees plus wind than to wind alone.…”

Section: Pollen Transfermentioning

confidence: 99%

Flowering Plants. Monocots

Kellogg

2015

204

230

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Pollination Systems in Paspalum dilatatum Poir. (Poaceae): An Example of Insect Pollination in a Temperate Grass

Cited by 26 publications

References 0 publications

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Honeybee-assisted wind pollination in bambooPhyllostachys nidularia(Bambusoideae: Poaceae)?

Flowering Plants. Monocots

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