Results 141 to 150 of about 84,722 (312)

Bees of subfamily Nomiinae (Hymenoptera, Halictidae) from Southern Punjab, Pakistan [PDF]

ZooKeys
To date, 26 species of the subfamily Nomiinae are known to occur in Pakistan. Among these, most of the species have been reported from the northern parts of Punjab, particularly the Pothwar region.
Huanhuan Chen, Waseem Akram, Muhammad Naeem, Nawaz Haider Bashir, Sabir Hussain, Maryam Riasat, Asif Sajjad, Ruilin Tian, Ammad Ahmad, Muhammad Khalid Rafique, Zamin Hussain Dahri   +10 more
doaj   +3 more sources

Effects of the novel pesticide flupyradifurone (Sivanto) on honeybee taste and cognition

Scientific Reports, 2018
Due to intensive agriculture honeybees are threatened by various pesticides. The use of one group of them, the neonicotinoids, was recently restricted by the European Union.
Hannah Hesselbach, Ricarda Scheiner
semanticscholar   +1 more source

The defence of the honeybee community [PDF]

Proceedings of the Royal Society of London. Series B - Biological Sciences, 1954
Abstract Pairs of colonies of differently coloured bees were placed with their entrances only 2 in. apart, and m any bees tried to enter the wrong colony, as if it were their own. Strangers were recognized by their different scent, and their reception depended upon foraging conditions.
openaire   +2 more sources

The amino terminal domain of the human α7 nicotinic acetylcholine receptor subunit leads to the functional expression of human/insect receptors

British Journal of Pharmacology, EarlyView.
Human α7 receptors have been characterised in terms of pharmacological properties. Insertion of the N‐terminal domain of the human α7 subunit leads to honeybee and cockroach chimeric receptors activated by ACh and inhibited by α‐Bgt. Insertion of the human cys‐loop leads to cockroach chimeric receptors modulated by PNU.
Alison Cartereau, Chloé Veront, Alexandra Cremades, Priscilla Martin, Remi Gojard, Nicolas Galland, Emiliane Taillebois, Dieudonnée Togbé, Jean‐Yves Le Questel, Steeve H. Thany   +9 more
wiley   +1 more source

Addition and subtraction by honeybees [PDF]

Learning & Behavior, 2019
Howard, Avargues-Weber, Garcia, Greentree, and Dyer (Science Advances, 5,1-6, 2019) report experiments in which honeybees initially shown a number of shapes could subsequently choose a pattern that added or subtracted one from that number. Further, the operations of addition and subtraction were cued by the colors of the shapes.
openaire   +2 more sources

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

Knockout of a single Pax6 gene (toy but not ey) leads to compound eye deficiency and small head in honeybees

Communications Biology
The compound eyes are crucial to honeybees, playing pivotal roles in color recognition, orientation, localization, and navigation processes. The development of compound eyes is primarily mastered by an evolutionarily conserved transcription factor Pax6 ...
Xiaofen Hu, Fuping Cheng, Zhixian Gong, Kaixin Qin, Tingting Shan, Wenwen Li, Lizhen Zhang, Weiyu Yan, Zhijiang Zeng, Zilong Wang   +9 more
doaj   +1 more source

(−)-Gallocatechin Gallate: A Novel Chemical Marker to Distinguish Triadica cochinchinensis Honey

Foods
Triadica cochinchinensis honey (TCH) is collected from the nectar of the medicinal plant T. cochinchinensis and is considered the most important honey variety in southern China.
Huizhi Jiang, Zhen Li, Shiqing Zhong, Zhijiang Zeng   +3 more
doaj   +1 more source

Ecological stoichiometry of the honeybee: Pollen diversity and adequate species composition are needed to mitigate limitations imposed on the growth and development of bees by pollen quality

PLoS ONE, 2017
The least understood aspects of the nutritional needs of bees are the elemental composition of pollen and the bees’ need for a stoichiometrically balanced diet containing the required proportions of nutrients. Reduced plant diversity has been proposed as
Michał Filipiak, K. Kuszewska, M. Asselman, B. Denisow, E. Stawiarz, M. Woyciechowski, J. Weiner   +6 more
semanticscholar   +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