Results 1 to 10 of about 1,674 (163)

The Alarm Pheromone and Alarm Response of the Clonal Raider Ant. [PDF]

J Chem Ecol, 2023
Abstract Ants communicate via an arsenal of different pheromones produced in a variety of exocrine glands. For example, ants release alarm pheromones in response to danger to alert their nestmates and to trigger behavioral alarm responses.
Lopes LE, Frank ET, Kárpáti Z, Schmitt T, Kronauer DJC.   +4 more
europepmc   +7 more sources

Temporary inactivation of the anterior part of the bed nucleus of the stria terminalis blocks alarm pheromone-induced defensive behavior in rats [PDF]

Frontiers in Neuroscience, 2015
Rats emit an alarm pheromone in threatening situations. Exposure of rats to this alarm pheromone induces defensive behaviors, such as head out behavior, and increases c-Fos expression in brain areas involved in the mediation of defensive behaviors.
Markus Fendt, Yasushi Kiyokawa, Hideaki Inagaki   +2 more
exaly   +4 more sources

Neural mechanisms of alarm pheromone signaling. [PDF]

Mol Cells, 2013
Alarm pheromones are important semiochemicals used by many animal species to alert conspecifics or other related species of impending danger. In this review, we describe recent developments in our understanding of the neural mechanisms underlying the ability of fruit flies, zebrafish and mice to mediate the detection of alarm pheromones.
Enjin A, Suh GS.
europepmc   +4 more sources

Molecular Basis of Alarm Pheromone Detection in Aphids [PDF]

Current Biology, 2017
The sesquiterpene (E)-β-farnesene (EBF) is the alarm pheromone for many species of aphids [1]. When released from aphids attacked by parasitoids or predators, it alerts nearby conspecifics to escape by walking away and dropping off the host plant [2, 3].
Zhang, R, Wang, B, GROSSI, GERARDA, FALABELLA, Patrizia, Liu, Y, Yan, S, Lu, J, Xi, J, Wang, G.   +8 more
openaire   +3 more sources

Composition of aphid alarm pheromones

Journal of Chemical Ecology, 1980
Analysis of single cornicle droplets from six species of aphid showed the presence of volatile components in addition to (E)-β-farnesene. Compounds identified included (Z,E)-α- and (E,E)-α-farnesene forMyzus persicae and α- and β-pinene forMegoura viciae. WithMegoura viciae, (−)-α-pinene was most important for alarm activity. The major component of the
Pickett, J. A., Griffiths, D. C.
openaire   +1 more source

Host plant‐specific volatiles of Beauveria bassiana‐colonized plants initiate trophic plant–aphid–predator cascades

Pest Management Science, EarlyView.
Endophytic colonization of melon plants by B. bassiana modifies the crop volatile profiles in a genotype‐dependent manner. A predator choice is biased toward endophytically colonized plants infested with aphids revealing a guardian within effect of the fungus of great potential in integrated pest management.
María Cuenca‐Medina, Raquel Rodríguez‐Solana, José Manuel Moreno‐Rojas, Rafael Alcalá‐Herrera, Enrique Quesada‐Moraga, Natalia González‐Mas   +5 more
wiley   +1 more source

Emission of Alarm Pheromone in Aphids: a Non-Contagious Phenomenon [PDF]

Journal of Chemical Ecology, 2008
In response to attack by natural enemies, most aphid species release an alarm pheromone that causes nearby conspecifics to cease feeding and disperse. The primary component of the alarm pheromone of most species studied is (E)-beta-farnesene. We recently demonstrated that the production and accumulation of (E)-beta-farnesene during development by ...
Verheggen, François, Mescher, M. C., Haubruge, Eric, De Moraes, C. M., Schwartzberg, E. G.   +4 more
openaire   +2 more sources

Take flight: predation risk induces wing polyphenism and dispersal in the aphid Myzus persicae

Pest Management Science, EarlyView.
Predator risk above a critical density induces winged morphs in Myzus persicae, promoting dispersal and reducing predation compared with wingless aphids. This density‐dependent phenotypic plasticity enhances survival but may compromise biological control by facilitating aphid dispersal.
Jamin Ali, Adil Tonğa, Bashiru Adams, Geoff M Gurr, Rizhao Chen, Qiyun Li   +5 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

Evidence for positive population‐level responses but not individual performance of sycamore aphids under elevated CO2

Agricultural and Forest Entomology, EarlyView.
The abundance and density of three common sycamore aphids increased under elevated CO2, although this was only statistically significant for Drepanosiphum platanoidis. The number of nymphs produced by individual D. platanoidis alates isolated in clip cages was not significantly affected, suggesting that population level response was not driven by ...
Liam M. Crowley, Carolina Mayoral, Abigail Enston, Jessica Money, Jon P. Sadler, Jeremy Pritchard, Rob A. MacKenzie, Scott A. L. Hayward   +7 more
wiley   +1 more source