Results 21 to 30 of about 29,000 (204)
One of the main reasons why insect pollinators are declining is a lack of floral resources. In agricultural landscapes, remaining seminatural grasslands play a key role for providing such resources.
Nina Roth +4 more
doaj +1 more source
Nectar biosynthesis is conserved among floral and extrafloral nectaries [PDF]
AbstractNectar is a primary reward mediating plant–animal mutualisms to improve plant fitness and reproductive success. Four distinct trichomatic nectaries develop in cotton (Gossypium hirsutum), one floral and three extrafloral, and the nectars they secrete serve different purposes.
Elizabeth C Chatt +8 more
openaire +3 more sources
A dataset of nectar sugar production for flowering plants found in urban green spaces
Nectar and pollen are floral resources that provide food for insect pollinators, so quantifying their supplies can help us to understand and mitigate pollinator declines.
Nicholas E. Tew +5 more
doaj +1 more source
The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants.
José Neiva Mesquita-Neto +4 more
doaj +1 more source
Forager bees (Apis mellifera) highly express immune and detoxification genes in tissues associated with nectar processing. [PDF]
Pollinators, including honey bees, routinely encounter potentially harmful microorganisms and phytochemicals during foraging. However, the mechanisms by which honey bees manage these potential threats are poorly understood.
Johnson, Brian R +2 more
core +1 more source
ATTRACTING ANTAGONISTS: DOES FLORAL NECTAR INCREASE LEAF HERBIVORY? [PDF]
Traits that are attractive to mutualists may also attract antagonists, resulting in conflicting selection pressures. Here we develop the idea that increased floral nectar production can, in some cases, increase herbivory. In these situations, selection for increased nectar production to attract pollinators may be constrained by a linked cost of ...
Adler, Lynn, Bronstein, Judith L
openaire +2 more sources
Nectaries and reproductive biology of croton sarcopetalus (euphorbiaceae) [PDF]
Flower morphology, nectary structure, nectar chemical composition, breeding system, floral visitors and pollination were analysed in Croton sarcopetalus, a diclinous-monoecious shrub from Argentina.
Bernardello, Gabriel Luis Mario +3 more
core +1 more source
Pollination by hummingbirds of Vriesea gigantea (Bromeliaceae) populations in Southern Brazil
The pollination syndrome hypothesis usually does not successfully apply to the diversity of floral phenotypes or help predict the pollinators of most plant species.
Gecele Matos Paggi +2 more
doaj +1 more source
It is hypothesized that in heterostylous plant species, standardization of signals of floral attraction between different morphs is advantageous, encouraging flower visitors to switch between morphs.
Xiaoyue Wang, Yan Chen, Yin Yi
doaj +1 more source
Nectar and oleiferous trichomes as floral attractants in Bulbophyllum saltatorium Lindl. (Orchidaceae) [PDF]
Although many Orchidaceae have deceit flowers that produce no reward, the most common reward, when present, is nectar. Bulbophyllum, however, is unusual in that the labellar secretions of most species investigated to date lack sugars, and, therefore ...
Davies, Kevin L. +2 more
core +1 more source

