Table 2 Studies of acoustic anti-parasitic adaptations in hosts to date
From: Coevolution of acoustical communication between obligate avian brood parasites and their hosts
| Anti-parasitic adaptations | Number of published papers | Proportion of the total literature* (%) |
|---|---|---|
| Host adults | ||
| Identify host alarm calls | 9 | 6.62 |
| Recognize sound of parasitic adults | 4 | 2.94 |
| Social learning | 2 | 1.47 |
| Recognize parasitic adults | 8 | 5.88 |
| Adjust behavior according to parasitism risk | 3 | 2.21 |
| Make specific alarm calls | 4 | 2.94 |
| Increase incubation call rate | 1 | 0.74 |
| Alarm; protect nest | 2 | 1.47 |
| Aggressive behavior including alarm calls | 12 | 8.82 |
| Recognize sound of parasitic nestlings | 3 | 2.21 |
| Total | 48 | 35.29 |
| Host nestlings | ||
| Adjust oneself to beg | 4 | 2.94 |
| Total | 4 | 2.94 |