Sentence examples for level of pollination from inspiring English sources

While yield was positively correlated with pollinator abundance, species richness had little effect on the level of pollination services.

To relate weed phenology to the level of pollination by the crop, we grouped the mother plants into 9 discrete classes according to their date of flowering onset and computed within each class the mean value of P c.

An important avenue of future research is to understand, in the first instance how these external factors influence the level of pollination service and the extent of pollination deficits, but also how they might influence the value of deficit mitigation strategies.

Despite having to co-opt native honeybees as pollinators, A. sericifera maintains relatively high levels of pollination success that are lower but still comparable to a native honeybee-pollinated milkweed.

The third species, which was open to all flower visitors, indicated that oak woodlands had the highest levels of pollination from generalist species.

For two plant species, G. hederacea and L. corniculatus for which seed set is significantly enhanced by insect pollination, measurements of seed and fruit set (respectively) showed there were significantly higher levels of pollination in plants growing in tubs in gardens, compared to those growing in tubs in arable field margins in Hertfordshire (Fig 4; Fig 5).

To investigate the natural levels of pollination, we recorded the natural fruit set and stigmatic pollen load in 2013.

There is some evidence that levels of pollination affect seed number with associated impacts on size and calcium concentration (Brookfield et al., 1996; Volz et al., 1996; Buccheri and Di Vaio, 2004; Matsumoto et al., 2012) but direct links between insect pollination and apple quality are equivocal.

These data would reveal whether this species maintains equally high levels of pollination success in its native versus exotic ranges and whether geitonogamy is present in natural populations or is an acquired trait present only in exotic populations (e.g. van Kleunen et al. 2008).

Not all flowers on bean plants will set pods regardless of levels of pollination, and this depends on node location and flower numbers per node (Free, 1993), but 58% of flowers visited is by no means saturation and production could therefore be vulnerable to bumblebee decline or low visitation in poor weather years.

Despite these differences, the level of sunflower pollination was similar across sites, even though the bee community responded to changes in landscape composition.