Results 21 to 30 of about 29,316 (287)

Nicotine in floral nectar pharmacologically influences bumblebee learning of floral features [PDF]

open access: yesScientific Reports, 2017
AbstractMany plants defend themselves against herbivores by chemical deterrents in their tissues and the presence of such substances in floral nectar means that pollinators often encounter them when foraging. The effect of such substances on the foraging behaviour of pollinators is poorly understood.
D. Baracchi   +4 more
openaire   +5 more sources

The Sensory and Cognitive Ecology of Nectar Robbing

open access: yesFrontiers in Ecology and Evolution, 2021
Animals foraging from flowers must assess their environment and make critical decisions about which patches, plants, and flowers to exploit to obtain limiting resources. The cognitive ecology of plant-pollinator interactions explores not only the complex
Sarah K. Richman   +7 more
doaj   +1 more source

Floral resources in Swedish grasslands remain relatively stable under an experimental drought and are enhanced by soil amendments if regularly mown

open access: yesEcological Solutions and Evidence, 2023
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]

open access: yesPlant Physiology, 2021
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

open access: yesEcological Solutions and Evidence, 2023
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 olfactory basis of orchid pollination by mosquitoes. [PDF]

open access: yes, 2020
Mosquitoes are important vectors of disease and require sources of carbohydrates for reproduction and survival. Unlike host-related behaviors of mosquitoes, comparatively less is understood about the mechanisms involved in nectar-feeding decisions, or ...
Akbari, Omar S   +6 more
core   +1 more source

ATTRACTING ANTAGONISTS: DOES FLORAL NECTAR INCREASE LEAF HERBIVORY? [PDF]

open access: yesEcology, 2004
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

Assessing risks and benefits of floral supplements in conservation biological control [PDF]

open access: yes, 2010
The use of flowering field margins is often proposed as a method to support biological control in agro-ecosystems. In addition to beneficial insects, many herbivores depend on floral food as well.
Lenteren, J.C., van   +3 more
core   +2 more sources

Nectar Secretion of Floral Buds of Tococa guianensis Mediates Interactions With Generalist Ants That Reduce Florivory

open access: yesFrontiers in Plant Science, 2020
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

Nectaries and reproductive biology of croton sarcopetalus (euphorbiaceae) [PDF]

open access: yes, 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
core   +1 more source

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