Results 141 to 150 of about 21,065 (290)

Competitive Interactions Between Generalist Predators and Their Effects on Shared and Non‐Shared Pests in a Greenhouse Crop

Entomologia Experimentalis et Applicata, EarlyView.
Orius laevigatus engages in unidirectional intraguild predation on Transeius montdorensis. Despite this, both predators coexisted and suppressed the shared thrips prey. Aphids, a non‐shared prey, were effectively controlled by O. laevigatus even when its population was limited due to intraguild predation. T.
Angelos Mouratidis, Jesica Pérez‐Rodríguez, Hessel van der Heide, Gerben J. Messelink   +3 more
wiley   +1 more source

Metabarcoding of Pollen Carried by Syrphids Reveals Novel Plant–Pollinator Interactions in a Protected Natural Area and Agricultural Sites

Entomologia Experimentalis et Applicata, EarlyView.
Using DNA metabarcoding, this study investigates pollen transported by syrphids (Syrphidae) in the Dolomiti Bellunesi National Park and agricultural sites in Northern Italy. The analysis reveals a high diversity of visited plant taxa, including previously undocumented plant–pollinator interactions.
Serena Magagnoli, Daniele Sommaggio, Claudio Ratti, Riccardo Baroncelli, Andrea Menicucci, Enrico Vettorazzo, Giovanni Burgio   +6 more
wiley   +1 more source

Functional analysis of the Arabidopsis thaliana AtEP3 endochitinase

, 2001
Chitinases are enzymes that are capable of catalyzing the hydrolysis of chitin, a homopolymer of N-acetylglucosamine. Chitin is the main constituent of the exoskeleton of insects, of crustacean shells and of the cell wall of many fungi but is absent in ...
Passarinho, P.A.
core  

Alternative Food for Litter‐Inhabiting Predators Decreases Thrips Densities and Above‐Ground Plant Damage

Entomologia Experimentalis et Applicata, EarlyView.
We studied predatory soil mites that control the thrips Frankliniella occidentalis. Thrips densities were significantly reduced by the predator Cosmolaelaps sabelisi. It presumably feeds on prepupae and pupae in the soil and on larvae aboveground.
Karen Muñoz‐Cárdenas, Diana Rueda‐Ramirez, Firdevs Ersin, Farid Faraji, Arne Janssen   +4 more
wiley   +1 more source

An Improvised Medium for In vitro Pollen Germination and Pollen Tube Growth of Chickpea [PDF]

, 1997
Using pollen from a cold tolerant accession ICC8923, best results for pollen germination and pollen tube growth were obtained in medium containing 2.5% sucrose + 10% PEG + 100 mg boric acid + 300 mg calcium nitrate + 200 mg magnesium sulfate + 100 mg ...
Seetharama, N, Shivanna, K R, Saxena, N P   +2 more
core  

BumbleBEEP: A Sensor System for Bumblebee Colony Monitoring

Entomologia Experimentalis et Applicata, EarlyView.
We present a bumblebee colony monitoring system, BumbleBEEP. The system is fitted with thermometers and a custom weight sensor. These record data up to every 15 min, recording bumblebee brood nest temperature, environmental ambient temperature, and colony growth.
Nynke Blömer, Matteo Redana, Sarah B. Scott, Pim van Gennip, Marten Schoonman, Lynn V. Dicks   +5 more
wiley   +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

The effects of temperature on pollen germination and pollen tube growth of apricot and sweet cherry

, 2002
This study was carried out in order to determine the effects of different temperatures (5, 10, 15 and 20 degreesC) on the pollen germination and tube growth of apricot 'Hasanbey',,'Mahmudun Erigi', 'Karacabey', 'Salak' and 'Sekerpare' and sweet cherry ...
Pirlak, L
core  

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