Posted on: 02 March, 2017
Author: Alexander P
Perhaps the male marking pheromone acts as an attractant and arrestant for the queen, but this has yet to be demonstrated experimentally. Perhaps it also acts as an aphrodisiac. The bioassay, mentione... Perhaps the male marking pheromone acts as an attractant and arrestant for the queen, but this has yet to be demonstrated experimentally. Perhaps it also acts as an aphrodisiac. The bioassay, mentioned above, to test the reactions of males to components of site marking pheromones could also be used to test their attractiveness to virgin queens. Queens must seek out the type of location where ight routes of...
Posted on: 02 March, 2017
Author: Alexander P
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...
Posted on: 02 March, 2017
Author: Alexander P
The pheromones expressed the idea that animals use visual, acoustic and olfactory methods to mark the possession of space (Hediger 1944, 1949, 1950, 1955, 1956). The role of odor in the behavior of an... The pheromones expressed the idea that animals use visual, acoustic and olfactory methods to mark the possession of space (Hediger 1944, 1949, 1950, 1955, 1956). The role of odor in the behavior of animals generally, and in territoriality particularly, has been reviewed recently (Gleason and Reynierse 1969; Ewer 1968; Mykytowycz 1970, 1972; Ralls 1971). Pheromone scent deposited in the space becomes a substitute for the animal...
Posted on: 02 March, 2017
Author: Alexander P
The pheromone gland is named after the Russian who, in 1883, rst described it; but the function of the gland was then unknown although it was supposed to help in secreting surplus water, possibly fro... The pheromone gland is named after the Russian who, in 1883, rst described it; but the function of the gland was then unknown although it was supposed to help in secreting surplus water, possibly from nectar the bees had collected (Zoubareff, 1883). This erroneous concept was corrected by Sladen (1901, 1902, 1905) who realized that the odour from the gland attracted other bees. This function...
Posted on: 02 March, 2017
Author: Brunetti Brunetti
There are a few reasons why it makes sense to have a sprinkler system installed instead of relying on manual watering of the land. The major reason why sprinkler systems are so popular these days is b... There are a few reasons why it makes sense to have a sprinkler system installed instead of relying on manual watering of the land. The major reason why sprinkler systems are so popular these days is because they are a far more efficient method of getting water to various parts of your land. Whether it is a residential or a commercial property, the...
Posted on: 02 March, 2017
Author: Alexander P
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...
Posted on: 02 March, 2017
Author: Alexander P
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...
Posted on: 02 March, 2017
Author: Alexander P
As further evidence of complexity of male pheromone odor compared with female odorour research shows the preliminary characterization of caudal organ odors of Apodemus avicollis Melchior (Stoddart, u... As further evidence of complexity of male pheromone odor compared with female odorour research shows the preliminary characterization of caudal organ odors of Apodemus avicollis Melchior (Stoddart, unpublished). Several peaks peculiar to the male are present and their identification and isolation are the subject of continuing pheromone studies. Mention was made above of the dual role played by the scent producing apparatus of some small mammals. There seems little doubt that cutaneous...
Posted on: 02 March, 2017
Author: Alexander P
Sex pheromones in the reproductive isolation of lepidopterous species matter. Throughout millions of metamorphoses, evolutionary processes in the Lepidoptera have resulted in many differences in morph... Sex pheromones in the reproductive isolation of lepidopterous species matter. Throughout millions of metamorphoses, evolutionary processes in the Lepidoptera have resulted in many differences in morphology, biology and behavior; not the least subtle of these changes being in the chemical communication systems developed by the various species. Most moth species utilize chemical emanations as a primary stimulus in their specialized mating behavior and the evidence is increasing that in many instances these specialized olfactory...
Posted on: 02 March, 2017
Author: Alexander P
In another experiment, Boch and Morse (1979) divided a colony by a double screen partition and gave each half a queen. Although the top pheromone odours could freely pass though the screen each half w... In another experiment, Boch and Morse (1979) divided a colony by a double screen partition and gave each half a queen. Although the top pheromone odours could freely pass though the screen each half was able to recognize its own - queen when tested several days later, indicating that the queens had not acquired a similar pheromone odour. Therefore, adsorption of odour onto the body...