Impact of nest sanitation behavior on hosts' egg rejection: an empirical study and meta-analyses
| Autor: | Canchao Yang, Jianli Bi, Qihong Li, Jiangwen Wu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Brood parasite
Sanitation Guest Editor: Canchao YANG AcademicSubjects/SCI01320 AcademicSubjects/SCI01130 egg discrimination Zoology Biology Special Column: Avian brood parasite/host interactions: behavior personality and mechanism Bulbul biology.organism_classification Pycnonotus jocosus Predation pre-adaptation Nest Sympatric speciation nest cleaning avian brood parasitism Animal Science and Zoology Adaptation |
| Zdroj: | Current Zoology |
| ISSN: | 1674-5507 |
| Popis: | Egg rejection in birds is a specific adaptation toward avian brood parasitism, whereas nest sanitation is a general behavior for cleaning the nest and avoiding predation. However, both behaviors refer to the action of ejecting objects out of the nest, and nest sanitation has been proposed as a pre-adaptation for egg rejection. Here, we tested the eliciting effect of nest sanitation on egg rejection in the red-whiskered bulbul Pycnonotus jocosus, a potential host species that are sympatric with parasitic cuckoos. We conducted meta-analyses of previous studies on both nest sanitation and egg rejection, in order to evaluate the consistency of our conclusions. Our results showed that nest sanitation did not elicit egg rejection in P. jocosus. The conclusions concerning such an eliciting effect from previous studies were mixed, whereas the methodologies were inconsistent, making the studies unsuitable for comparisons. However, the ejection frequency of nest sanitation was consistently higher than the frequency of egg rejection across different host species or populations. These results suggest that nest sanitation, which is an ancient behavior, is more fundamental than egg rejection, but the effect of the former on the latter is complex and needs further study. Standardized methodologies and the integration of behavior, physiology, and modeling may provide better opportunities to explore the relationship between nest sanitation and egg rejection. |
| Databáze: | OpenAIRE |
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