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Journal article
Nectar cardenolides and floral volatiles mediate a specialized wasp pollination system.
Specialization in plant pollination systems can arise from traits that function as filters of flower visitors. This may involve chemical traits such as floral volatiles that selectively attract favoured visitors and non-volatile nectar constituents that selectively deter disfavoured visitors through taste or longer-term toxic effects or both. We explored the... -
Journal article
Sterol composition in plants is specific to pollen, leaf, pollination and pollinator.
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Journal article
Sunflower spines and beyond: mechanisms and breadth of pollen that reduce gut pathogen infection in the common eastern bumble bee.
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Journal article
Host and gut microbiome modulate the antiparasitic activity of nectar metabolites in a bumblebee pollinator.
Koch, Hauke ; Welcome, Vita ; Kendal-Smith, Amy ; Thursfield, Lucy ; Farrell, Iain W. …
Disease, Trypanosomatidae, Host–parasite ecology, Gut microbiota, Bee health, and Phytochemistry
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Journal article
Understanding effects of floral products on bee parasites: Mechanisms, synergism, and ecological complexity.
Fitch, Gordon ; Figueroa, Laura L. ; Koch, Hauke ; Stevenson, Philip C. ; Adler, Lynn S.
Bombus, Bee pathogens, Plant secondary metabolites, Nectar, Apis, Pollinators, and Pollen
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Journal article
Pollen sterols are associated with phylogeny and environment but not with pollinator guilds.
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Journal article
The state of the world’s urban ecosystems: What can we learn from trees, fungi, and bees?
Social Impact Statement Positive interactions between people and nature inspire behaviours that are in harmony with biodiversity conservation and also afford physical and mental health benefits. Since most people live in towns and cities, urban greenspaces are key points of influence for conservation, but also provide diverse ecosystem services. City... -
Journal article
New directions in pollinator research: diversity, conflict and response to global change
Interactions between pollinators and their plant hosts are central to maintaining global biodiversity and ensuring our food security. In this special issue, we compile reviews that summarize existing knowledge and point out key outstanding research areas to understand and safeguard pollinators, pollinators–host plant interactions and the pollination ecosystem services they...Scott-Brown, Alison ; Koch, Hauke
biodiversity , ecosystems, pollinators, and plants
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Journal article
Flagellum Removal by a Nectar Metabolite Inhibits Infectivity of a Bumblebee Parasite
Plant phytochemicals can act as natural ‘‘medicines’’ for animals against parasites [1–3]. Some nectar metabolites, for example, reduce parasite infections in bees [4–7]. Declining plant diversity through anthropogenic landscape change [8–11] could reduce the availability of medicinal nectar plants for pollinators, exacerbating their decline [12]. Existing studies are, however, limited...