Main conclusion The floral nectars were sucrose-dominant; however, nectar protein and
amino acid contents differed, indicating that composition of nitrogenous compounds may …

Background Floral nectar is the most common reward flowers offered to pollinators. The
quality and quantity of nectar produced by a plant species provide a key to understanding its …

Most flowers are visited by a wide range of potential pollinators. However, their efficiency in
pollen removal and deposition, and other behavioural factors affecting pollination …

Floral nectar sugar composition is assumed to reflect the nutritional demands and foraging
behaviour of pollinators, but the relative contributions of evolutionary and abiotic factors to …

Fritillaria is a genus consisting of 130 to 140 species of bulbous plants, native to temperate
regions of the northern hemisphere. Generally viewed as an insect pollinated genus with the …

In dichogamous species, it is necessary that pollinators are attracted both to male-and
female-phase flowers in order to achieve effective cross-pollination. We investigated, over a …

This account presents information on all aspects of the biology of Fritillaria meleagris
L.(Snake's Head Fritillary). The main topics are presented within the standard framework of …

The flowers of most Anacardiaceae have a floral nectary disk producing nectar rich in
sugars. However, a recent study demonstrated that their nectaries might also produce other …

Flowers of Bulbophyllum weberi and B. cumingii are characterized by fly-pollinated features.
The secretory activity was described in dorsal sepals in both species (putative osmophores) …

Premise of research. Croton glandulosus L. is a ruderal annual species of Euphorbiaceae
native to the American tropics and widespread in urban and rural areas in Brazil. We …