Results 171 to 180 of about 19,459 (297)

On the pollen-grains of Ranunculus arvensis

Annals and Magazine of Natural History
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Ants contribute to raspberry pollination in protected cropping systems

Agricultural and Forest Entomology, EarlyView.
Ants visited raspberry flowers more frequently than European honey bees (Apis mellifera), Australian stingless bees (Tetragonula carbonaria) and flies, many transporting raspberry pollen on their bodies, indicating potential pollination capacity. Ants were active flower visitors at most times of the day and may extend the daily pollination window and ...
Pia Malm, Blake M. Dawson, Jelena Preradovic, Johan Ekroos, Romina Rader, Bar Shermeister, Lena A. Schmidt   +6 more
wiley   +1 more source

A review on the function of arabinogalactan-proteins during pollen grain development. [PDF]

Plant Reprod
Foubert-Mendes S, Silva J, Ferreira MJ, Pereira LG, Coimbra S.   +4 more
europepmc   +1 more source

Colony‐level pollen collection reflects visitation of managed bumble bees (Bombus impatiens) in strawberry fields and surrounding landscapes without reducing pollen limitation

Agricultural and Forest Entomology, EarlyView.
We extracted pollen from colony beeswax to quantify season‐long, colony‐level resource use and tested how managed Bombus impatiens visitation and Rosaceae pollen collection relate to landscape context and strawberry pollination. Increased managed bumble bee visitation was not influenced by surrounding landcover, did not reduce pollen limitation and ...
Leeah I. Richardson, Olivia Miller, David Sossa, Aaron Iverson, Scott McArt, Katja Poveda, Heather Grab   +6 more
wiley   +1 more source

Pollen Grain Classification Using Some Convolutional Neural Network Architectures. [PDF]

J Imaging
Garga B, Abboubakar H, Sourpele RS, Gwet DLL, Bitjoka L.   +4 more
europepmc   +1 more source

The dual crisis: Climate change simultaneously drives pollinator decline and Pest outbreaks

Agricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Frequency and Severity of Allergic Reactions to Non‐Mandatory Labelled Allergenic Foods—Data From Two Large European Cohorts

Allergy, EarlyView.
In two large European cohorts, 589 reactions to non‐mandatory labelled plant‐based foods were identified with sunflower seed, pine nut, pea and lentil as the most frequent triggers. Reaction severity was not different between mandatory and non‐mandatory labelled allergenic foods. Their frequency and rising trends (e.g., fenugreek, pumpkin seed) support
Sabine Dölle‐Bierke, Alejandro Gonzalo‐Fernández, Dominique Sabouraud‐Leclerc, Laura Barreales‐Tolosa, Barbara Ballmer‐Weber, Simona Belohlavkova, Maria B. Bilò, Ruta Dubakiene, Karin Hartmann, Monika Jedrzejczak‐Czechowicz, Thuy‐My Le, Lars Lange, Nikolaos G. Papadopoulos, Guillaume Pouessel, Isabel Reig, Athanasios Sinaniotis, E. N. Clare Mills, Margitta Worm, Montserrat Fernández‐Rivas   +18 more
wiley   +1 more source

Pollen grain morphology is not exclusively responsible for pollen collectability in bumble bees. [PDF]

Sci Rep, 2019
Konzmann S, Koethe S, Lunau K.
europepmc   +1 more source

Precise Pollen Grain Detection in Bright Field Microscopy Using Deep Learning Techniques. [PDF]

Sensors (Basel), 2019
Gallardo-Caballero R, García-Orellana CJ, García-Manso A, González-Velasco HM, Tormo-Molina R, Macías-Macías M.   +5 more
europepmc   +1 more source

Pollen Grains of Picea [PDF]

Botanical Gazette, 1906
openaire   +1 more source