Modulation of trail laying in the ant Lasius neglectus (Hymenoptera: Formicidae) and its role in the collective selection of a food source

Ethology ◽  
2018 ◽  
Vol 124 (12) ◽  
pp. 870-880 ◽  
Author(s):  
Filippo Frizzi ◽  
Francesco Talone ◽  
Giacomo Santini
Keyword(s):  
Food Source ◽  
Lasius Neglectus ◽  
Trail Laying ◽  
Selection Of

Modulation of trail laying in the antLasius niger (Hymenoptera: Formicidae) and its role in the collective selection of a food source

1993 ◽  
Vol 6 (6) ◽  
pp. 751-759 ◽  
Author(s):  
R. Beckers ◽  
J. L. Deneubourg ◽  
S. Goss
Keyword(s):  
Food Source ◽  
Trail Laying ◽  
Selection Of

How Information-Mapping Patterns Determine Foraging Behaviour of a Honey Bee Colony

2002 ◽  
Vol 09 (02) ◽  
pp. 181-193 ◽  
Author(s):  
Valery Tereshko ◽  
Troy Lee
Keyword(s):  
Food Source ◽  
Foraging Behaviour ◽  
Reaction Diffusion ◽  
Reaction Diffusion Equations ◽  
Common Information ◽  
Bee Colony ◽  
Nectar Sources ◽  
Nectar Source ◽  
Honeybee Colony ◽  
Selection Of

We have developed a model of foraging behaviour of a honeybee colony based on reaction-diffusion equations and have studied how mapping the information about the explored environment to the hive determines this behaviour. The model utilizes two dominant components of colony's foraging behaviour — the recruitment to the located nectar sources and the abandonment of them. The recruitment is based upon positive feedback, i.e autocatalytic replication of information about the located source. If every potential forager in the hive, the onlooker, acquires information about all located sources, a common information niche is formed, which leads to the rapid selection of the most profitable nectar source. If the onlookers acquire information about some parts of the environment and slowly learn about the other parts, different information niches where individuals are associated mainly with a particular food source are formed, and the correspondent foraging trails coexist for longer periods. When selected nectar source becomes depleted, the foragers switch over to another, more profitable source. The faster the onlookers learn about the entire environment, the faster that switching occurs.

TRAIL-LAYING BEHAVIOUR OF THE CARPENTER ANT, CAMPONOTUS PENNSYLVANICUS (HYMENOPTERA: FORMICIDAE)

1977 ◽  
Vol 109 (1) ◽  
pp. 129-136 ◽  
Author(s):  
E. B. Hartwick ◽  
W. G. Friend ◽  
C. E. Atwood
Keyword(s):  
Food Source ◽  
Physical Contact ◽  
Directional Information ◽  
Camponotus Pennsylvanicus ◽  
Direct Light ◽  
Carpenter Ant ◽  
Trail Laying ◽  
Hind Gut

AbstractCamponotus pennsylvanicus (De Geer) workers concentrate their foraging efforts in the vicinity of a new food source. Experiments with artificial “trees” confirm that these ants lay chemical trails when they locate food and under other circumstances. Marks left by ants travelling over smoked paper indicate that the trail consists of a series of streaks, sometimes variable in length, and that ants following trails make regular alternate deviations. Trails are laid extensively in the immediate vicinity of food. A trail is not reinforced by all gorged workers passing over it.The trails activate other workers and provide a means of orientation but are clearly non-directional. A bioassay with various organs indicated that the hind gut is the source of the trail substance.When a strong direct light is available, attention to trails dwindles and ants eventually use light orientation to reach the food, often following more direct routes at that time. Physical contact between workers may activate them but provides no directional information and may lead to temporary disorientation.

scholarly journals Selection of cyanobacteria isolated from mosquito breeding sites as a potential food source for mosquito larvae.

1991 ◽  
Vol 57 (5) ◽  
pp. 1354-1359 ◽  
Author(s):  
I Thiery ◽  
L Nicolas ◽  
R Rippka ◽  
N Tandeau de Marsac
Keyword(s):  
Food Source ◽  
Mosquito Larvae ◽  
Breeding Sites ◽  
Potential Food Source ◽  
Mosquito Breeding ◽  
Potential Food ◽  
Selection Of

scholarly journals Trail-Laying Behaviour as a Function of Resource Quality in the AntCamponotus rufipes

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Pablo E. Schilman
Keyword(s):  
Food Quality ◽  
Food Source ◽  
Resource Quality ◽  
Nectar Feeding ◽  
Trail Marking ◽  
Sucrose Solutions ◽  
Trail Laying ◽  
Camponotus Rufipes ◽  
Marking Behaviour

Chemical trails have been shown to act as an orientation cue in some ant species. Here, I report that the trail-laying behaviour in the nectar-feeding ant,Camponotus rufipes, varies with the concentration of the sucrose solutions collected. Single workers collected solutions of different sucrose concentrations (5%, 20%, and 40% in weight) during 4 consecutive visits to the resource, and their trail-marking behaviour was recorded on soot-coated slides during their first and last visits. Results suggest that these chemical trails provide both an orientation cue between the nest and the food source, as previously suggested forCamponotusants, as well as information about food quality.

Oviposition patterns and the supplementary role of a seed-feeding weevil, Rhyssomatus marginatus (Coleoptera: Curculionidae), in the biological control of a perennial leguminous weed, Sesbania punicea

1992 ◽  
Vol 82 (3) ◽  
pp. 343-347 ◽  
Author(s):  
J.H. Hoffmann ◽  
V.C. Moran
Keyword(s):  
Biological Control ◽  
Food Source ◽  
Biological Control Agent ◽  
Reproductive Potential ◽  
Control Agent ◽  
Larval Food ◽  
Intraspecific Interactions ◽  
Host Plant Location ◽  
Selection Of

AbstractA seed-feeding curculionid, Rhyssomatus marginatus Fåhraeus, was introduced into South Africa for biological control of a perennial leguminous weed, Sesbania punicea, from South America. R. marginatus has become established even though its larval food source, seeds in ripening pods, is severely depleted by another biological control agent, an apionid, Trichapion lativentre (Beguin Billecocq), which destroys nearly all the flower-buds produced by the plants and reduces seed-set by 98% on average. In spite of this indirect competition, R. marginatus destroys up to 88% of the remaining seeds that develop on S. punicea, regardless of host plant location. Detrimental intraspecific interactions between larvae of R. marginatus are minimized, and the utilization of a depleted food source is optimized, through meticulous selection of oviposition sites by the female weevils. Although numerically inferior, R. marginatus is an important supplementary agent to T. lativentre and together the two species of weevils have almost arrested the reproductive potential of S. punicea.

Cognitive gadgets and cognitive priors

2019 ◽  
Vol 42 ◽  
Author(s):  
Gian Domenico Iannetti ◽  
Giorgio Vallortigara
Keyword(s):  
Cognitive Neuroscience ◽  
Selection Of

Abstract Some of the foundations of Heyes’ radical reasoning seem to be based on a fractional selection of available evidence. Using an ethological perspective, we argue against Heyes’ rapid dismissal of innate cognitive instincts. Heyes’ use of fMRI studies of literacy to claim that culture assembles pieces of mental technology seems an example of incorrect reverse inferences and overlap theories pervasive in cognitive neuroscience.

Note on Selection of Coordinate Systems for Geodynamics

1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen
Keyword(s):  
Sea Level ◽  
The Other ◽  
Coordinate Systems ◽  
Mean Sea Level ◽  
The Earth ◽  
The One ◽  
Static Systems ◽  
Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

Measurements of the Cape Astrometric Survey of the Southern Hemisphere

1978 ◽  
Vol 48 ◽  
pp. 515-521
Author(s):  
W. Nicholson
Keyword(s):  
Southern Hemisphere ◽  
Automatic Measuring ◽  
Measuring Machine ◽  
Final Selection ◽  
Selection Of

SummaryA routine has been developed for the processing of the 5820 plates of the survey. The plates are measured on the automatic measuring machine, GALAXY, and the measures are subsequently processed by computer, to edit and then refer them to the SAO catalogue. A start has been made on measuring the plates, but the final selection of stars to be made is still a matter for discussion.

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

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