environment

Posted on: 02 March, 2017

Author: Alexander P

Volatility of Pheromones

Identication of the chemical components of the Nasonov pheromone has been a slow process and may not yet be completed. Those so far identied are given in Table 13.1 and Fig. 13.1. Table 13.1 Identi... Identication of the chemical components of the Nasonov pheromone has been a slow process and may not yet be completed. Those so far identied are given in Table 13.1 and Fig. 13.1. Table 13.1 Identication of components of Nasonov pheromone. The tentative identication by Weaver et al. (1964) of citral as a minor component of the Nasonov pheromone was conrmed by Shearer and Boch (1966)....

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environment

Posted on: 02 March, 2017

Author: Alexander P

Pheromones in Rats

It is possible that urination in mice replaces the specialized pheromone setting behaviors in other species, since it appears to be under a certain degree of social control. Reynolds (1971) estimated ... It is possible that urination in mice replaces the specialized pheromone setting behaviors in other species, since it appears to be under a certain degree of social control. Reynolds (1971) estimated the amount of urination occurring in encounters between cage owning mice and visitors of both sexes to home cages by measuring the area of urine, as revealed by the blot on the absorbent paper lining of the...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Pheromonal systems in mammals

An interested reader can turn to any of a large number of recent reviews to nd up-to-date bibliographies concerning almost all facets of this broad subject: Bronson (1968, 1971); Bruce (1966, 1967, 1... An interested reader can turn to any of a large number of recent reviews to nd up-to-date bibliographies concerning almost all facets of this broad subject: Bronson (1968, 1971); Bruce (1966, 1967, 1970); Cheal and Sprott (1971); Eisenberg and Kleiman (1973); Gleason and Reynierse (1969); Mykytowycz (1970); Ralls (1971); Schultz and Tapp (1973); Whitten (1966); and Whitten and Bronson (1970). Because of these extensive efforts, no attempt...

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environment

Posted on: 02 March, 2017

Author: Alexander P

The presence of a human pheromone

One of the best documented aspects of human pheromone function in mammals is certainly in the control of the estrous cycle of the laboratory mouse (Whitten 1956b; 1959). While typically thought of as ... One of the best documented aspects of human pheromone function in mammals is certainly in the control of the estrous cycle of the laboratory mouse (Whitten 1956b; 1959). While typically thought of as 4 to 5-day periodicity; estrous cycles ranging up to 11-1 2 days may be easily produced and should be considered perfectly normal depending upon the presence or absence of male odors and the...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Genetic Control of Pheromone Systems

Even slight differentiation between the respective pheromones by Marble and Wardle females was surprising because these populations are separated by a distance of only 20 miles over which tridens is c... Even slight differentiation between the respective pheromones by Marble and Wardle females was surprising because these populations are separated by a distance of only 20 miles over which tridens is continuously distributed. The extremely strong discrimination between Marble and Wardle males by females of Swan and Rodgers indicated that the volatiles produced by males of the two populations were even more different than could have been suspected from the...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Synthetic Pheromones In Insects

Synthetic pheromone simulating that of drone brood and adult drones could be used to prevent drone rearing. Synthetic pheromones of drone comb could be used to reduce the amount of drone comb built in... Synthetic pheromone simulating that of drone brood and adult drones could be used to prevent drone rearing. Synthetic pheromones of drone comb could be used to reduce the amount of drone comb built in the brood area of a colony. Meanwhile this can be achieved by using drone comb in the honey storage areas of hives. The synthetic Nasonov lure, being produced commercially, is already being...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Familiar Pheromone Odors

Animals and Eibl-Eibesfeldt (1958) suggested that this is a ‘symbolic take- over’ of the sexual partner and should be regarded as an extension of the male’s territorial marking thank... Animals and Eibl-Eibesfeldt (1958) suggested that this is a ‘symbolic take- over’ of the sexual partner and should be regarded as an extension of the male’s territorial marking thanks to pheromone cologne. Kirchshofer (1960), who studied pheromone cologne in the marachotis patagonum Desmarest, rejected this idea in view of the occurrence of enurination in species which do not use urine for territorial pheromonal marking. The operation of individual distance in the...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Pheromone Verification

Verification of the interaction of the best pheromones and stridulation has been shown for Dendroctonus pseudotsugae (Rudinsky and Michael 1972). Males stridulate at or near the entrance to a female-o... Verification of the interaction of the best pheromones and stridulation has been shown for Dendroctonus pseudotsugae (Rudinsky and Michael 1972). Males stridulate at or near the entrance to a female-occupied gallery to produce a recog- nizable ‘courtship’ sound, distinguishable in oscilloscope traces from distress sounds. An identical sound is produced on exposure to frontalin, 3-methyl-2-cyc- lohexen-1-one (MCH) and transverbenol, all female-produced pheromones (table 8.1). A D. pseudotsugae female is able...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Pheromones and Environmental Reproduction

Let us return to our basic assumption, that if pheromone odors are to be used for social integration in small mammals that are unable to use visual and acoustic signals, we might expect that the total... Let us return to our basic assumption, that if pheromone odors are to be used for social integration in small mammals that are unable to use visual and acoustic signals, we might expect that the total range of messages to be transmitted is as wide as it is in those species able to use visual and acoustic signals. Surprisingly little attention has been paid...

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environment

Posted on: 02 March, 2017

Author: Alexander P

Pheromone odor on Skin Secretions

There are various reasons why young individuals may be kept isolated from other members of their pheromone group by being confined to special sites. Thus they may need better protection from predators... There are various reasons why young individuals may be kept isolated from other members of their pheromone group by being confined to special sites. Thus they may need better protection from predators and adverse climatic conditions or may have to be kept closer to sources of food and water or protected from deliberate or accidental injury by conspecifics. During the course of amatory behavior prior to mating in...

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