Some jumping spiders (family Salticidae) bear a striking resemblance to ants, a dangerous type of prey, both in terms of their appearance and in terms of how they move. Recent research has taken important steps toward determining whether predators categorize these spiders as ants on the basis of the way they move.
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Cataglyphis ants have a polarity-sensitive magnetic compass.
Curr Biol
December 2024
Behavioral Physiology and Sociobiology (Zoology II), Biocenter, University of Würzburg, 97074 Würzburg, Germany; AG Neurosensorik/Animal Navigation, Institute of Biology and Environmental Sciences, Faculty V, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany. Electronic address:
Spatial orientation based on the geomagnetic field (GMF) is a widespread phenomenon in the animal kingdom, predominantly observed in long-distance migrating birds, sea turtles, lobsters, and Lepidoptera. Although magnetoreception has been studied intensively, the mechanism remains elusive. A crucial question for a mechanistic understanding of magnetoreception is whether animals rely on inclination or polarity-based magnetic information.
View Article and Find Full Text PDFFungus Fighters: Wood Ants (Formica polyctena) and Their Associated Microbes Inhibit Plant Pathogenic Fungi.
Microb Ecol
November 2024
Terrestrial Ecology, Department of Ecoscience, Aarhus University, Aarhus, Denmark.
Plant diseases cost the global economy billions of US dollars every year. The problem has mainly been addressed by using chemical pesticides, but recently, the use of ants has shown promising effects against plant pathogens. However, the mechanisms accounting for these effects have not yet been determined.
View Article and Find Full Text PDFCompensation to visual impairments and behavioral plasticity in navigating ants.
Proc Natl Acad Sci U S A
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Centre de Biologie Integrative, Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, CNRS, Université Paul Sabatier, Toulouse 31062 cedex 09, France.
Desert ants are known to rely heavily on vision while venturing for food and returning to the nest. During these foraging trips, ants memorize and recognize their visual surroundings, which enables them to recapitulate individually learned routes in a fast and effective manner. The compound eyes are crucial for such visual navigation; however, it remains unclear how information from both eyes are integrated and how ants cope with visual impairment.
View Article and Find Full Text PDFWalking kinematics of ants carrying food in the mandibles versus gaster.
J Exp Biol
December 2024
Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, 31400 Toulouse, France.
The locomotor behavior of an animal strongly depends on the distribution of its body mass. Whenever changes occur in this distribution, the displacement of the body center of mass (CoM) may lead to a loss of balance. Ants are an interesting biological model with which to investigate how an animal copes with such changes because, when they transport food, their CoM may be displaced from its usual position.
View Article and Find Full Text PDFPreference and Toxicity of Sulfoxaflor, Flupyradifurone, and Triflumezopyrim Bait against the Fire Ant (Hymenoptera: Formicidae) and Their Efficacy under Field Conditions.
Insects
October 2024
College of Plant Protection, South China Agricultural University, Guangzhou 510642, China.
The red imported fire ant Buren (Hymenoptera: Formicidae) is native to South America; however, its introduction to other countries has caused serious biodiversity, agricultural, and public health problems. As toxic bait is an effective method to control fire ant populations, the aim of this study was to determine the most effective concentration of sulfoxaflor, flupyradifurone, and triflumezopyrim as ingredients for baits against under laboratory and field conditions. Sulfoxaflor, flupyradifurone, and triflumezopyrim had no effect on the feeding behavior of the fire ants.
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