Results 121 to 130 of about 21,827 (224)

Structural Characterization of Microcapsules from Common Bee Pollen for the Development of Delivery Systems

Exine, in the form of a natural microcapsule, refers to the outermost layer of the pollen grains and is composed of a complex mixture of sporopollenin, a highly resistant polymer, which makes it durable and able to withstand harsh conditions ...
Peixoto, Andreia F., Russo-Almeida, Paulo, Vilas-Boas, Miguel, Aylanc, Volkan, Ertosun, Seymanur, Santamaria-Echart, Arantzazu, Freire, Cristina   +6 more
core   +1 more source

No evidence of a decoy effect in bees: Rewardless flowers do not increase bumblebees' preference for neighbouring flowers

Ecological Entomology, EarlyView.
Many plants retain nectarless flowers; we tested whether these act as “decoys” for bees by making neighbouring rewarding flowers seem more valuable—a cognitive bias known as the decoy effect. The presence of decoy flowers did not shift bumblebee preferences between two equally rewarding inflorescences, and bees quickly learned to avoid these nectarless
Mélissa Armand, Leonhard Herrnberger, Clara Jung, Tomer J. Czaczkes   +3 more
wiley   +1 more source

Nutritional composition of pollen stores in managed bees across European agro‐ecosystems reveals species‐specific differences but limited pesticide effects

Ecological Entomology, EarlyView.
In the pollen stores of three bee species deployed across 128 European sites, bumble bees harboured lower lipid content and higher protein‐to‐lipid ratios than honey bees and mason bees. Toxicity‐weighted pesticide risk did not alter protein‐to‐lipid ratios, but higher risk was associated with reduced protein and lipid content in the pollen stores of ...
Antoine Gekière, Clément Tourbez, Maryse Vanderplanck, Tomasz Kiljanek, Guillaume Ghisbain, Elif Kardas, Irene Bottero, Marie‐Pierre Chauzat, Elena Cini, Francesca Corvucci, Joachim R. de Miranda, Gennaro Di Prisco, Christophe Dominik, Francesca V. Grillenzoni, Simon Hodge, Anina Knauer, Marion Laurent, Vicente Martínez‐López, Risto Raimets, Janine M. Schwarz, Deepa Senapathi, Giorgia Serra, Giovanni Tamburini, Dimitry Wintermantel, Mark J. F. Brown, Matthias Albrecht, Cecilia Costa, Pilar De la Rúa, Alexandra‐Maria Klein, Marika Mänd, Simon G. Potts, Maj Rundlöf, Oliver Schweiger, Jane C. Stout, Denis Michez   +34 more
wiley   +1 more source

Forest bee pollen load diversity

, 2019
Pollen load diversity, bee species, plant species and traits ...
Colleen Smith (7070885), Rachael Winfree (411831), Lucia Weinman (3275685), Jason Gibbs (167056)   +3 more
core   +1 more source

Eusocial bee species are exposed to different toxic element profiles despite foraging within the same landscape

Ecological Entomology, EarlyView.
Bombus terrestris and Apis mellifera colonies sharing the same landscape (<50 m from each other) collected pollen with significantly different heavy metal concentrations. B. terrestris‐collected pollen contained 2–7× higher concentrations of arsenic, chromium, cobalt, lead and tin than A. mellifera‐collected pollen.
Sarah B. Scott, Nynke Blömer, Lynn V. Dicks   +2 more
wiley   +1 more source

Characterizing the Use of Botanical Resources from Pollen Loads from Apis mellifera, and Stingless Bees’ Pot-pollen Palynology: An Approach Using Network Analysis and Generalized Linear Models

Sociobiology
Pollen loads gathered by honeybees and pot-pollen stored by stingless bees are functional foods with commercial potential. The botanical origin influences the physicochemical composition of the corbicular pollen, Apis mellifera’s bee bread, and the ...
Lendra Schuastz Breda, José Elton de Melo Nascimento, Vagner de Alencar Arnaut de Toledo, Vanderlei Aparecido de Lima, MARIA LURDES FELSNER   +4 more
doaj   +1 more source

Urban peatlands can harbour diverse insect communities but depend on appropriate habitat management

Insect Conservation and Diversity, EarlyView.
Urban peatlands can support high insect diversity, including endangered species and peat bog specialists. Flower diversity boosts endangered species, while succession cover reduces overall insect richness—but bog condition and urbanization showed no major effects.
Nadja Pernat, Anika Kristin Gathof, Hilke Hollens‐Kuhr, Sascha Buchholz   +3 more
wiley   +1 more source

A multidisciplinary Approach to Evaluate Pyrrolizidine Alkaloids and their N_oxide Metabolites presence in Bee pollen: Conventional and Innovative methods

, 2019
Bee pollen production is gradually increasing due to demand for dietary supplements and therapeutic natural products. However, bee products might be unsafe for human consumption, if they originates from plants (families Asteraceae, Boraginaceae and ...
Francesca Capolongo, Nicola Vitulo, luciana De Jesus Inacio, Barbara Cardazzo, Lorena Lucatello, Vittoria Bisutti, Roberta Merlanti, LARINI, ILARIA   +7 more
core  

Bee pollen and its pharmacological properties

, 2018
Bee pollen is a natural honey bee product that is considered a valuable resource for nutrients and energy. It is a health-enhancing value because of its wide variety of primary and secondary plant metabolites and enzymes and co-enzymes.
KOROĞLU, Ayşegül
core   +1 more source

Diet breadth shapes gut microbiota in the invasive hornet Vespa velutina

Insect Conservation and Diversity, EarlyView.
Dietary and microbial profiles of V. velutina larvae are dominated by Apidae and Firmicutes, respectively. DNA metabarcoding of larval meconium and gut samples reveals a significant positive correlation between prey richness and bacterial diversity in the invasive hornet V. velutina. Multiple significant correlations exist between dietary and microbial
Cayetano Herrera, Iris Alemany, Mar Leza, José A. Jurado‐Rivera   +3 more
wiley   +1 more source