Results 41 to 50 of about 125,543 (397)
Current Biology, 2001 Orchids comprise one of the most spectacular groups of flowering plants but they are rather a mean bunch: a large number of species go to some length to attract pollinators but produce no nectar or other reward for their visit. This is a highly unusual strategy amongst flowering plants. So how do such ‘rewardless’ species manage to propagate themselves
openaire +3 more sources
Forager bees (Apis mellifera) highly express immune and detoxification genes in tissues associated with nectar processing. [PDF]
, 2015 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
Apidologie, 2020 Exposure to pesticides is a potential concern for pollinators that may forage on plants containing residues. A key element of estimating dietary risk to pollinators is to determine the nature and amount of food consumed by individuals.
Sara Rodney, J. Purdy
semanticscholar +1 more source
Nectaries and reproductive biology of croton sarcopetalus (euphorbiaceae) [PDF]
, 2001 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
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Journal of Ecology, 2020 Plants allocate defences in order to decrease costs and maximize benefits against herbivores. The Optimal Defense Theory (ODT) predicts that continuously expressed (i.e.
E. Calixto +4 more
semanticscholar +1 more source
Acta Agrobotanica, 2021 The attractiveness of plants to pollinators depends strongly on flower rewards, especially nectar and pollen. Nectar mass, sugar concentration, and sugar mass are known to influence the spectrum and abundance of insect visitors. Respective data on nectar
Małgorzata Bożek
doaj +1 more source
Polyphenol profile of buckwheat honey, nectar and pollen
Royal Society Open Science, 2020 A focus of research in recent years is the comparison of honey as the final product of bees with pollen and nectar of the plant from which the honey originates, as the main food source for bees.
Milica Nešović +8 more
semanticscholar +1 more source
The dose makes the poison: have “field realistic” rates of exposure of bees to neonicotinoid insecticides been overestimated in laboratory studies? [PDF]
, 2014 Recent laboratory based studies have demonstrated adverse sub-lethal effects of neonicotinoid insecticides on honey bees and bumble bees, and these studies have been influential in leading to a European Union moratorium on the use of three neonicotinoids,
BARON G L +16 more
core +1 more source
The role of jasmonates in floral nectar secretion. [PDF]
PLoS ONE, 2010 Plants produce nectar in their flowers as a reward for their pollinators and most of our crops depend on insect pollination, but little is known on the physiological control of nectar secretion.
Venkatesan Radhika +3 more
doaj +1 more source