Feeding interferences among conspecfics of the short-nosed fruit bat while feeding on mangoes that are exposed with feeding area (i.e. portion of fruit devoid of outer skin)(18.2MB, 00:01:48)Shot Date: 2001/05/03 Shot Location: Keelapatti, a village near Madurai City in South India | ||
 | species Cynopterus sphinx Key Words | |
|
Animalia >Chordata >Mammalia >Ciroptera >Pteropodidae >Cynopterus >
Foraging conspecifics of Cynopterus sphinx compete for the mangoes which are exposed with feeding area (i.e. portion of fruit devoid of outer skin). This incites competition among individuals and the bat spent large amount of time in processing the fruit tend to actively secure it from the intruders.
Below is the abstract from the article containing this video:
In situ feeding tactics of short-nosed fruit bat (Cynopterus sphinx) on mango fruits: evidence of extractive foraging in a flying mammal.
Natarajan Singaravelan and Ganapathy Marimuthu
J Ethol (2007). DOI 10.1007/s10164-007-0044-1
We report a sequence of behaviors exhibited by the short-nosed fruit bat Cynopterus sphinx while feeding on fruits of Mangifera indica. They peel off the outer skin to form a feeding area of about 3?6 cm diameter. Such food preparatory behaviors were more pronounced on larger mangoes. Bats competed among themselves to feed on the mangoes that had such feeding areas exposed. Individuals that spent a considerable amount of time on food preparatory behaviors actively secured the fruits. Altogether, these behaviors indicate that Cynopterus bats might have learnt, over evolutionary time, and developed behaviors that facilitate efficient processing and feeding of fruits such as mangoes. It appears that actions exhibited by C. sphinx in peeling off the outer skin of mangoes exemplify "extractive foraging" a behavior that is prominently known in large-brained mammals. Thus, our findings will have implications on the distribution and evolution of extractive foraging and "technical intelligence" among mammalian lineages.
(Data No.momo061118cs02a)
Copyrights belong to author.
Read Terms of Service carefully
>>Japanese
[Database Home]