Nectar, the main floral reward for pollinators, varies greatly in composition and
concentration. The assumption that nectar quality is equivalent to its sugar (energy) …

Nectar is one of the most important flower traits, shaping plant–pollinator interactions and
reproductive success. Despite Orchidaceae including numerous nectariferous species …

The presence of yeasts in pollen and floral nectar is rather the norm than the exception. Due
to the metabolic activities of yeasts, sugar and amino acid composition of nectar often …

Floral adaptation to a single most effective functional pollinator group leads to specialized
pollination syndromes. However, adaptations allowing for pollination by two functional …

Abstract Background and Aims The attractiveness of nectar rewards depends both on the
quantity of nectar produced and on its chemical composition. It is known that nectar quantity …

Honey collection evolved from simple honey hunting to the parallel and independent
domestication of different species of bees in various parts of the world. In this study, we …

Premise Extrafloral nectaries have mainly been studied in angiosperms, but have also been
reported in 39 fern species. Here we provide a global review of nectaries in ferns and …

Abstract Pollen/ovule (P/O) ratios are often used as proxy for breeding systems. Here, we
investigate the relations between breeding systems and P/O ratios, pollination syndromes …

Nectar‐feeding birds provide an excellent system in which to examine form‐function
relationships over evolutionary time. There are many independent origins of nectarivory in …

Amino acids (AAs) are an abundant class of nectar solutes, and they are involved in the
nectar attractiveness to flower visitors. Among the various AAs, proline is the most abundant …