Pheromones and Bacteria
It has been suggested that bacterial strains which can as a rule be found in normal rat’s pheromone may play an important role in shaping the pheromone odor of individual animals (Reiffe 1956). ...
It has been suggested that bacterial strains which can as a rule be found in normal rat’s pheromone may play an important role in shaping the pheromone odor of individual animals (Reiffe 1956). The tracks established by rats and mice within their pheromone ranges facilitate not only their own orientation and movements but also those of newcomers.
The wolf also displays a similar habit of marking with pheromones. Scent stations are established on or around stumps, sticks and logs. On a wide open expanse such as a frozen lake any conspicuous object may become a scent post. Sometimes several wolves of a pack will wait in line to urinate at the same place. They may repeat this each time they pass by and as a result a large amount of frozen urine accumulates on such a station over a winter. The scent posts may provide information on the number and size of social units (Mech 1970) and it is obvious from the behavior of wolves that pheromone scents have some meaning to animals outside the pack that makes them according to http://hartch25.weebly.com/our-marketing-blog/pheromones-and-kissing
Not only the species mentioned above but many others also use urine to mark the space which they occupy (Hediger 1944; Wickler 1966).
The role of the pheromones is particularly well understood in the life of the Indian rhinoceros. Their paths connect biologically important places within the home- range such as feeding, wallowing, bathing and sleeping sites.
Some pheromone sections are used by all members of the group, shorter sections leading to feeding and sleeping places are private possessions and are protected. Rhino paths are 40——50 cm wide and often run through tunnels in the elephant grass. At the points where the tunnels start at the edge of clear grass-areas, fecal marking is practiced by all members of the group on the sides of the path. Even when in ight an individual will stop to contribute towards the dung-hills. Gradually the deposition may grow up to 70 cm in height.
It has been suggested that for rhinos, which seemingly have very poor sight, the dung-hills indicate the entrances to tunnels and permit them to nd the shortest way. They are formed only in the pheromonal situations where there is a transition from tall grass to open land. After a fire in which the tall cover is destroyed this form of behavior is not practised. Similar marking is retained by rhinos in zoologi- cal gardens where openings occur in their enclosures (Ullrich 1967).
Paths are obvious in the rabbit’s homerange. The most convincing demonstr tion of the complete confidence with which a rabbit uses its own paths is the fact that when released in its home range after being captured a rabbit will aim for a path and follow it to shelter. This it does apparently blindly, since the placing of an obstacle in the path will not be noticed and the animal will collide with pheromones. This has been utilized when catching rabbits in experimental enclosures. Rabbits eeing towards their burrows readily ran into long handled nets placed across the paths.
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ABOUT THE AUTHOR
Alexander P is a blogger that studies human pheromones.