Posted on: 02 March, 2017
Author: Alexander P
An example of a mammalian primer is a factor in top pheromones, the smell of which passively induces neural and hormonal changes in females which culminate in ovulation and sexual behavior 48-72 hours... An example of a mammalian primer is a factor in top pheromones, the smell of which passively induces neural and hormonal changes in females which culminate in ovulation and sexual behavior 48-72 hours later. All mammalian priming functions so far documented are associated in some way with the process of reproduction. Signalling pheromones apparently have diverse functions, but again most are associated with behaviors modulated by the...
Posted on: 02 March, 2017
Author: Alexander P
In a number of mammalian species, mothers recognize their own young by the olfactory sense. This is true for laboratory rats (Bach and Jaynes 1956; Meyer 1964), mouon (0v1's aries musimon) (Tschanz 1... In a number of mammalian species, mothers recognize their own young by the olfactory sense. This is true for laboratory rats (Bach and Jaynes 1956; Meyer 1964), mouon (0v1's aries musimon) (Tschanz 1962), sheep (Smith 1965), black-tailed deer (0d0c0z'leus heminous columbianus) (Mi'1ller- Schwarze, unpublished), and rabbits (Mykytowycz 1972). Goats recognize their own young by olfaction and taste (Klopfer and Gamble 1966). _ In rats, the retrieving response...
Posted on: 02 March, 2017
Author: Alexander P
However, a very large number of reports on the occurrence and histological structure of specialized, odor-producing skin glands and on behavioral patterns concerned with the emission, deposition and o... However, a very large number of reports on the occurrence and histological structure of specialized, odor-producing skin glands and on behavioral patterns concerned with the emission, deposition and olfactory investigation of excretions suggest that pheromones not only exist in many -- if not most — primate species, but that they are also of considerable importance in regulating the daily life of the individual according to http://hartch25.weebly.com/our-marketing-blog/some-claim-pheromones-doesnt-work I shall review the evidence...
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: 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 spite of this variety, there are basic requirements common to all — a glandular source of secretion, storage area and modied scales for distribution. The eversible tubes (coremata) or the le... In spite of this variety, there are basic requirements common to all — a glandular source of secretion, storage area and modied scales for distribution. The eversible tubes (coremata) or the lever arrangement of the Noctuidae are both mechanisms for opening their brushes rapidly and thus disseminating the scent material with consid- cruble force, a factor apparently common to brush-organs wherever they are lo- cated. Observations of the...
Posted on: 02 March, 2017
Author: Alexander P
Different patterns of pheromone distribution of sympatric genetically related species, capable of breeding under laboratory conditions, assist speciation. Young rabbits still at nestling stage, when g... Different patterns of pheromone distribution of sympatric genetically related species, capable of breeding under laboratory conditions, assist speciation. Young rabbits still at nestling stage, when given the choice between articial nests with and without rabbit odor, display apreference for the nests which had the scent of their own species (Gambale and Dudzinski, unpublished). Specific odor of Pheromones There is ample evidence that when animals enter the area of a strange population they can detect...
Posted on: 02 March, 2017
Author: Alexander P
With the top pheromones, they could be used as temporary measures until synthetic brood and queen pheromones are available. On most crops honeybees collecting pollen are more effective as pollinators... With the top pheromones, they could be used as temporary measures until synthetic brood and queen pheromones are available. On most crops honeybees collecting pollen are more effective as pollinators than those collecting nectar only. Increasing the amount of brood pheromone which stimulates pollen collection in particular, should also increase pollina- tion. Until relevant synthetic brood pheromone is available minor and inexpensive adaptations to hives that direct foragers to the...
Posted on: 02 March, 2017
Author: Alexander P
The pheromone scent trails of some species are more effective than honeybee dances in assembling recruits and in addition can provide information on the vertical component (Lindauer and Kerr, 1958). ... The pheromone scent trails of some species are more effective than honeybee dances in assembling recruits and in addition can provide information on the vertical component (Lindauer and Kerr, 1958). However the pheromone scent trail alone of other species appears to be insufficient to elicit trail-following behaviour of recruits who need to be guided by the scout bee to the food on their initial trip, although thereafter they are...
Posted on: 02 March, 2017
Author: Alexander P
Although males’ initial responses to virgin and old mated queens were similar, they attempted to mate with young queens but not old ones (Free, 1971). Differences in the urge to mate could be ac... Although males’ initial responses to virgin and old mated queens were similar, they attempted to mate with young queens but not old ones (Free, 1971). Differences in the urge to mate could be accounted for by differences in the amount and composition of the queens’ sex attractant, or some other odour change associated with age or ovary development. Free (1971) found that the head and thorax...