New PDF release: Animal Homing

By F. Papi (auth.), F. Papi (eds.)

ISBN-10: 9401046913

ISBN-13: 9789401046916

ISBN-10: 9401115885

ISBN-13: 9789401115889

Homing phenomena has to be thought of an enormous element of animal behaviour as a result of their widespread prevalence, their survival price, and the diversity of the mechanisms concerned. Many species frequently depend on their skill to domestic or succeed in different known websites, yet how they have the ability to do that is usually doubtful. in lots of circumstances the aim is attained within the absence of any sensory touch, via mechanisms of oblique orientation whose complexity and class have for a very long time challenged the ability and endurance of many researchers. a sequence of difficulties of accelerating trouble must be triumph over; researchers need to observe the character of orienting cues, the sensory home windows concerned, the position of inherited and purchased info, and, finally, how the principal mechanisms procedure details and keep watch over motory responses. obviously, this publication emphasizes pursuits completed instead of parts unexplored and mysteries unsolved. in spite of this, the reader will quick observe that our wisdom of phenomena and mechanisms has improved to assorted levels in numerous animal teams, starting from the mere description of homing behaviour to a passable perception into a few underlying mechanisms. within the previous few dacades there were promising advancements within the research of animal homing, due to the fact that new ways were attempted out, and new species and teams were investigated. regardless of this, homing phenomena haven't lately been the item of exhaustive studies and there's a tendency for them to be overlooked ordinarily treatises on animal behaviour.

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Extra resources for Animal Homing

Sample text

The first detailed report on pulmonate homing is that of Edelstam and Palmer (1950) on Helix pomatia. Marked individuals released at increasing distances from their shelters show a good homing capacity up to 40 m but none whatsoever between 150 and 2000 m. A distinct variation in homing was observed in relation to weather and season, with the best performances occurring in the summer. A similar homing performance was observed by Southwick and Southwick (1969) in the giant land snail, Achatina fulica, which is able to home when displaced 5-30 m from its shelter.

However, lumping behaviour rarely takes the form of regular homing to a communal shelter such as that described in intertidal molluscs. It can best be seen as a response to predation or as a feeding strategy which appears under specific ecological conditions. In conclusion, the few quantitative analyses of the movements performed by sea-urchins in the field show a 'central place foraging' strategy based on various degrees of homing capacity, collective sheltering, home digging and shelter defence resembling that of intertidal molluscs.

Phenomena 49 A situation analogous to this natural setting can easily be created under laboratory conditions. When Cupiennius spiders are transferred to a circular arena, they are easily attracted by a humming housefly presented at the tip of two electrodes. As soon as the spider attacks and bites, the fly is electrically charged via the electrodes. The spider immediately releases its prey and is chased off with a brush from the capture site. After a period of several minutes it will turn around and walk back to the original site from which the fly has meanwhile been removed by the investigator (Fig.

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Animal Homing by F. Papi (auth.), F. Papi (eds.)


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