Sentence examples for levels of pollination from inspiring English sources

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.

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).

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.

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.

We documented the effective pollinators including a comparison of the efficacy of nocturnal versus diurnal pollinators as well as the breeding system and long-term natural levels of the pollination success of this species.

In apples and pears cultivated in Israel, where conditions for pollination are usually unfavorable, it was demonstrated that yields may be correlated with compatibility levels of pollinators.