Results 161 to 170 of about 29,316 (287)

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

Ecological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda, Alexandre Foito, Katharine F. Preedy, Colin J. Alexander, Ankush Prashar, Alison J. Karley   +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

Comparison of Biochemical Constituents and Contents in Floral Nectar of Castanea spp. [PDF]

Molecules, 2020
Kim YK, Lee S, Song JH, Kim MJ, Yunusbaev U, Lee ML, Kim MS, Kwon HW.   +7 more
europepmc   +1 more source

Der Einfluss von Blütenduftstoffen auf die Oviposition der Rosskastanienminiermotte Cameraria ohridella [PDF]

, 2008
The larval stages of Cameraria ohridella develop mining in leaves of the horse chestnut tree Aesculus hippocastanum. The insect establishes three generations in Central Europe. During the appearance of the first generation the horse chestnut trees bloom.
Johne, A. Bettina, Schütz, Stefan, Sprauer, Susanne, Weißbecker, Bernhard   +3 more
core  

Seasonality and plasticity in the use of native and introduced plant resources by a large forest parrot

Ibis, EarlyView.
Human‐induced environmental change is reshaping plant communities, requiring native animals to adapt their foraging behaviour to track and exploit novel food resources. Trees such as pines (Pinus spp.) introduced for plantation forestry outside of their native ranges often become naturalized.
Tirth Vaishnav, Kevin Chase Burns, Rachael C. Shaw   +2 more
wiley   +1 more source

Biología floral y polinizadores de Trichocereus pasacana (Cactaceae) en el Parque Nacional Los Cardones, Argentina

Revista de Biología Tropical, 2001
Se estudió la floración y polinización de Thrichocereus pasacana en Los Cardones (Salta, Argentina). La mayor prducción de néctar es de las 18 a las 24hs y las abejas Xylocopa sp. actúan como polinizadores.Many columnar cacti are bat pollinated.
M. L. de Viana, P. Ortega Baes, M. Saravia, E. I. Badano, B. Schlumpberger   +4 more
doaj  

Environmental cues rather than quality of supplemented pollen drive the foraging behaviour of honey bees during avocado pollination

Scientific Reports
Honey bee colonies adapt their foraging behaviours to the availability of floral resources to meet their nutritional needs. However, it is unknown if the nutritional quality of stored or supplemented pollen can influence the floral choices of bees during
Madlen Kratz, Robert Manning, Lynne Milne, Kenneth Dods, Boris Baer, Dominique Blache   +5 more
doaj   +1 more source

Sheep and cattle grazing regimes differentially affect ground beetle and ant communities in Mediterranean cork oak woodlands

Insect Conservation and Diversity, EarlyView.
Sheep and cattle grazing significantly shape ant and ground beetle species composition in Mediterranean cork oak woodlands, promoting higher diversity by increasing habitat heterogeneity. Ground beetles and ants reflect changes in grazing regimes, with sheep‐grazed areas showing the highest diversity, highlighting their utility in ecosystem monitoring.
Marcello Verdinelli, Maria Leonarda Fadda, Stefano Arrizza, Roberto Mannu   +3 more
wiley   +1 more source

Pollinator-attracting semiochemicals of the wasp-flower Epipactis helleborine [PDF]

, 2008
The orchid genus Epipactis is represented by 25 species in Europe (Richards 1982). Epipactis helleborine (L.) Crantz is the most common and widely distributed species of the genus (Wiefelspütz 1970), and is a prime example for wasp-flowers, because it is
Ayasse, Manfred, Brodmann, Jennifer, Francke, Wittko, Twele, Robert   +3 more
core  

Evaluating Syrphid Fly Predation on Aphids Under Controlled and Field Conditions in High Tunnels: A Comparative Study With Lacewings

Journal of Applied Entomology, EarlyView.
ABSTRACT Biological control in high tunnel systems can be optimised by matching predator species to seasonal environmental conditions. We evaluated the predatory efficacy of syrphid flies (Toxomerus marginatus (Say), Eupeodes americanus (Fabricius)) and lacewings (Chrysoperla carnea (Stephens), Chrysoperla rufilabris (Burmeister)) across laboratory ...
Allison Zablah, Marlo Gunnar McCarter, Christian H. Krupke, Laura L. Ingwell   +3 more
wiley   +1 more source