Results 131 to 140 of about 125,543 (397)

Sugar in the Nectar of Flowers * [PDF]

open access: yesScientific American, 1878
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openaire   +2 more sources

Long‐term nutrient addition and grazing exclusion determine flower abundance, diversity and community composition in high‐latitude grasslands

open access: yesOikos, EarlyView.
The abundance and composition of flowers within plant communities shape the resources available to flower‐visiting insects. However, it remains unclear how nutrient enrichment and changes in grazing impact plant communities and their floral resources, and whether these effects contribute to ongoing pollinator decline. We investigated how the abundance,
Nicolina Johanson   +4 more
wiley   +1 more source

Gelechiidae Moths Are Capable of Chemically Dissolving the Pollen of Their Host Plants [PDF]

open access: yes, 2011
Background: Many insects feed on pollen surface lipids and contents accessible through the germination pores. Pollen walls, however, are not broken down because they consist of sporopollenin and are highly resistant to physical and enzymatic damage. Here
Chen, Shi   +4 more
core   +1 more source

Nectar concentrations of biogenic amines affect bumble bee behavior in a dose‐dependent manner

open access: yesOikos, EarlyView.
While foraging, pollinators encounter a wide array of molecules, some of which may influence their internal states and behaviors. Among these, biogenic amines – nitrogenous compounds that serve as essential neuromodulators in animals – have only recently been detected in floral nectar.
Marta Barberis   +9 more
wiley   +1 more source

Spontaneous bleeding in chronic kidney disease: global coagulation assays may predict bleeding risk

open access: yesResearch and Practice in Thrombosis and Haemostasis
Background: Chronic kidney disease (CKD) is associated with increased bleeding and thrombotic risks. Standard blood tests do not sufficiently quantify these risks.
Rowena Brook   +4 more
doaj   +1 more source

Temporal and spatial variation in bacterial communities of “Jonagold” apple (Malus x domestica Borkh.) and “Conference” pear (Pyrus communis L.) floral nectar

open access: yesMicrobiologyOpen, 2019
Production of many agricultural crops and fruits strongly depends on pollinators. For instance, pome fruits such as apple and pear are highly dependent on pollination for fruit set, fruit quality, and yield.
Jolien Smessaert   +6 more
doaj   +1 more source

Sex-Dependent Variation of Pumpkin (Cucurbita maxima cv. Big Max) Nectar and Nectaries as Determined by Proteomics and Metabolomics

open access: yesFrontiers in Plant Science, 2018
Nectar is a floral reward that sustains mutualisms with pollinators, which in turn, improves fruit set. While it is known that nectar is a chemically complex solution, extensive identification and quantification of this complexity has been lacking ...
Elizabeth C. Chatt   +5 more
doaj   +1 more source

Vertical and temporal niche partitioning in Amazonian butterflies: implications for the evolution of thermal tolerance

open access: yesOikos, EarlyView.
Closely related species living in sympatry are often partitioned into divergent ecological niches. Such specialization can be enabled by the evolution of divergent traits enhancing adaptation to different niches. In this study, we investigate the partitioning of closely related butterfly species into different forest strata and daily activity time and ...
Titouan Bouinier   +2 more
wiley   +1 more source

Nectar Production and Three Main Sugars in Nectar of Salvia pratensis and Salvia glutinosa in Correlation with Abiotic Factors

open access: yesAgriculture
Floral nectar is mainly a reward in the form of food for pollinators. Its composition plays an important role when pollinators choose their food. Several studies have shown that the popularity of flowers with nectar is influenced by the concentration and
Katja Malovrh   +3 more
doaj   +1 more source

The Swallowing Characteristics of Thickeners, Jellies and Yoghurt Observed Using an In Vitro Model [PDF]

open access: yes, 2019
© The Author(s) 2019 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in ...
Cook, Michael T.   +5 more
core   +3 more sources

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