Performance of Apis mellifera, Bombus impatiens, and Peponapis pruinosa (Hymenoptera: Apidae) as Pollinators of Pumpkin

Artz, Derek R.; Nault, Brian A.

doi:10.1603/ec10431

Cited by 107 publications

(107 citation statements)

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“…In our study, by preferentially visiting more pistillate ßowers, A. mellifera and B. impatiens increase the probability of per visit pollen transfer to stigmas during a foraging bout (Harder and Wilson 1997). Foraging and yield studies by Artz and Nault (2011) found that B. impatiens deposited more than three times the amount of pollen grains per stigma per visit than A. mellifera or P. pruinosa, and, of the three species, P. pruinosa was a less effective pollinator of pumpkin than A. mellifera and B. impatiens. Field observations of A. mellifera and B. impatiens showed that these species also spent signiÞcantly more time foraging in pistillate ßowers than P. pruinosa (Artz and Nault 2011).…”

Section: Discussionmentioning

confidence: 54%

“…mellifera and B. impatiens Combined. Preliminary results and previous research (Artz and Nault 2011) suggested that the role of P. pruinosa may not be as important in determining Þnal fruit yield as the other two species. A separate regression using the mean number of total A. mellifera and B. impatiens ßower visits and excluding visits by P. pruinosa was used to estimate the relationship between bee visits by these two species and testing the effects of supplementation, Þeld size, mean number of ßowers per Þeld and year, and included all 2-and 3-way interaction terms.…”

Section: Methodsmentioning

confidence: 62%

“…Foraging and yield studies by Artz and Nault (2011) found that B. impatiens deposited more than three times the amount of pollen grains per stigma per visit than A. mellifera or P. pruinosa, and, of the three species, P. pruinosa was a less effective pollinator of pumpkin than A. mellifera and B. impatiens. Field observations of A. mellifera and B. impatiens showed that these species also spent signiÞcantly more time foraging in pistillate ßowers than P. pruinosa (Artz and Nault 2011). Flower preference and ßower handling time are two important parameters in explaining pollination efÞciency in pollinators (Herrera 1987, NeÕeman et al 2006) and can inßuence pollination success for plants with sexually dimorphic ßowers (Costich andMeagher 2001, Ashworth andGaletto 2002).…”

Section: Discussionmentioning

confidence: 97%

“…As Þeld size increased, the mean number of B. impatiens visits per ßower decreased. Work by Artz and Nault (2011) showed that pumpkin fruit weight and seed set resulting from visits by B. impatiens were signiÞcantly higher than A. mellifera on a per-visit basis. Therefore, supplementation of larger Þelds with B. impatiens may be useful.…”

Section: Discussionmentioning

confidence: 99%

“…We do not provide quantitative data on how bee visits relate to fruit yield (see Artz and Nault 2011); rather, we identify the most common bee species and discuss the implications of their foraging activity on pollination services in pumpkin Þelds.…”

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confidence: 99%

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Influence of Honey Bee,Apis mellifera, Hives and Field Size on Foraging Activity of Native Bee Species in Pumpkin Fields

Artz¹,

Hsu²,

Nault³

2011

Environ Entomol

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The purpose of this study was to identify bee species active in pumpkin Þelds in New York and to estimate their potential as pollinators by examining their foraging activity. In addition, we examined whether foraging activity was affected by either the addition of hives of the honey bee, Apis mellifera L., or by Þeld size. Thirty-Þve pumpkin (Cucurbita spp.) Þelds ranging from 0.6 to 26.3 ha, 12 supplemented with A. mellifera hives and 23 not supplemented, were sampled during peak ßowering over three successive weeks in 2008 and 2009. Flowers from 300 plants per Þeld were visually sampled for bees on each sampling date. A. mellifera, Bombus impatiens Cresson, and Peponapis pruinosa (Say) accounted for 99% of all bee visits to ßowers. A. mellifera and B. impatiens visited signiÞcantly more pistillate ßowers than would be expected by chance, whereas P. pruinosa showed no preference for visiting pistillate ßowers. There were signiÞcantly more A. mellifera visits per ßower in Þelds supplemented with A. mellifera hives than in Þelds not supplemented, but there were signiÞcantly fewer P. pruinosa visits in supplemented Þelds. The number of B. impatiens visits was not affected by supplementation, but was affected by number of ßowers per Þeld. A. mellifera and P. pruinosa visits were not affected by Þeld size, but B. impatiens visited fewer ßowers as Þeld size increased in Þelds that were not supplemented with A. mellifera hives. Declining A. mellifera populations may increase the relative importance of B. impatiens in pollinating pumpkins in New York.

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Section: Discussionmentioning

confidence: 54%

Section: Methodsmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Influence of Honey Bee,Apis mellifera, Hives and Field Size on Foraging Activity of Native Bee Species in Pumpkin Fields

Artz¹,

Hsu²,

Nault³

2011

Environ Entomol

Self Cite

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Influence of plant domestication on plant‐pollinator interactions: Floral attributes and floral visitor communities in wild and cultivated squash plants

Glasser

Santiago‐Hernández

Delgado-Carrillo

et al. 2023

American J of Botany

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Premise: Domestication of plant species results in phenotypic modifications and changes in biotic interactions. Most studies have compared antagonistic plantherbivore interactions of domesticated plants and their wild relatives, but little attention has been given to how domestication influences plant-pollinator interactions. Floral attributes and interactions of floral visitors were compared between sister taxa of the genus Cucurbita (Cucurbitaceae), the domesticated C. moschata, C. argyrosperma ssp. argyrosperma and its wild progenitor C. argyrosperma ssp. sororia in the place of origin. Methods: We conducted univariate and multivariate analyses to compare floral morphological traits and analyzed floral reward (nectar and pollen) quantity and quality between flowers of wild and domesticated Cucurbita taxa. Staminate and pistillate flowers of all three taxa were video recorded, and visitation and behavior of floral visitors were registered and analyzed. Results: Most floral morphological characteristics of flowers of domesticated taxa were larger in both staminate and pistillate flowers. Staminate and pistillate flowers presented distinct correlations between floral traits and integration indices between domesticated and wild species. Additionally, pollen quantity and protein to lipid ratio were greater in domesticated species. Cucurbit pollen specialists, Eucera spp., had the highest probability of visit for all Cucurbita taxa. Conclusions: We provide evidence that floral traits of domesticated and wild Cucurbita species experienced different selection pressures. Domesticated Cucurbita species may have more resources invested towards floral traits, thereby increasing attractiveness to pollinators and potentially plant reproductive success. Wild ancestor plant populations should be conserved in their centers of origin to preserve plantpollinator interactions.

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Diurnal and geographic variations of pollinator importance for Cucurbita maxima Duchesne

Ikemoto,

Tanaka,

Kohno

et al. 2023

Ecology and Evolution

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Despite growing awareness of the importance of monitoring wild crop pollinators worldwide, there are still few reports, especially in East Asia. Considering ongoing global warming may change the distribution range and diurnal activity of pollinators, it is necessary to describe current geographic and diurnal patterns. We clarified pollinators of Cucurbita maxima Duchesne (Cucurbitales: Cucurbitaceae) in three geographically distinct (>350 km, minimum) areas in Japan, focusing on diurnal variation. Apis mellifera L. (Hymenoptera: Apidae) and Halictidae (Hymenoptera) were observed in all of the experimental gardens. Apis cerana japonica Radoszkowski (Hymenoptera: Apidae) were mainly observed in Mie and Kagoshima, while Bombus diversus diversus Smith (Hymenoptera: Apidae) were observed only in Ibaraki. The peak time of flower visits depended both on bee taxa and area, and interestingly, did not necessarily synchronize with the timing of the highest pollen loads and the probability of stigma contact. In particular, visits and probability of contacting stigmas of Halictidae tended to increase as time passed, whereas pollen grains on their bodies sharply decreased with time; only a few individuals of Halictidae that visit early can become effective pollinators. There were no differences in yields between supplementary hand and natural pollination in all areas, and flower‐enclosure experiments using different mesh sizes clarified that small insects that can go across an approximately 4‐mm mesh may not transport sufficient pollen for fruit set. Our study demonstrated that pollination effectiveness, which is usually regarded as a static value, within a taxon can fluctuate in the space of just several hours. Considering such diurnal patterns can be altered by climate change, we need to carefully monitor the diurnal temporal patterns of pollinators worldwide.

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Performance of Apis mellifera, Bombus impatiens, and Peponapis pruinosa (Hymenoptera: Apidae) as Pollinators of Pumpkin

Cited by 107 publications

References 54 publications

Influence of Honey Bee,Apis mellifera, Hives and Field Size on Foraging Activity of Native Bee Species in Pumpkin Fields

Influence of Honey Bee,Apis mellifera, Hives and Field Size on Foraging Activity of Native Bee Species in Pumpkin Fields

Influence of plant domestication on plant‐pollinator interactions: Floral attributes and floral visitor communities in wild and cultivated squash plants

Diurnal and geographic variations of pollinator importance for Cucurbita maxima Duchesne

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