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| Content Provider | Springer Nature Link |
|---|---|
| Author | Califa, D. Chaves Campos, J. |
| Copyright Year | 2010 |
| Abstract | Most of what we know about the moving behaviour of the nomadic army ant Eciton burchellii comes from Barro Colorado Island (BCI) in Panama. Nomadic colonies raid roughly in straight line during the day and relocate their nests along this path in the evening. At BCI, nomadic colonies raid roughly in the same compass bearing of the previous day, presumably using their pheromone-marked raiding trails as cues to pick directions. Deviations from this direction occur when a nomadic colony fails to move, possibly due to environmental conditions. The generality of these results has been questioned. We studied nomadic colonies of E. burchellii at La Selva Biological Station, Costa Rica to evaluate the generality of the results obtained from BCI. We measured the angle between consecutive raids, manipulated the distribution of previous day’s raid pheromones around nests to evaluate the effect of raid pheromone on foraging direction, and evaluated the effect of rainfall on the probability of moving and on deviation from the previous day’s raid. Colonies did not follow the same compass bearing of the previous day and formed new raids on areas with previous day’s raid pheromones or without them. Rainfall can explain when nomadic colonies move, but did not explain deviation from the previous day’s raid direction. Our results suggest that caution should be taken when generalizing the insightful results obtained from the BCI population. |
| Starting Page | 309 |
| Ending Page | 315 |
| Page Count | 7 |
| File Format | |
| ISSN | 00201812 |
| Journal | Insectes Sociaux |
| Volume Number | 58 |
| Issue Number | 3 |
| e-ISSN | 14209098 |
| Language | English |
| Publisher | SP Birkhäuser Verlag Basel |
| Publisher Date | 2010-12-24 |
| Publisher Place | Basel |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Army ants Costa Rica La Selva Biological Station Migration Pheromones Rainfall Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics Insect Science |
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