Hosts evolve defensive strategies to minimize the reproductive costs of brood parasitism,in turn,the hosts'defense promote the optimization of cuckoo parasitism strategies(Soler 2017).Recognizing foreign eggs and ...Hosts evolve defensive strategies to minimize the reproductive costs of brood parasitism,in turn,the hosts'defense promote the optimization of cuckoo parasitism strategies(Soler 2017).Recognizing foreign eggs and selectively removing them from the nest can minimize the fitness costs associated with rearing parasitic fledglings(Soler 2017).Since Rothstein(1971)first experimented with the addition of a model egg to a host nest in the early incubation period to study host egg recognition,the use of model eggs has become one of the most important methods for testing the egg recognition abilities of hosts(Hauber et al.2019).Some studies have looked at various egg colors and their effect on host egg rejection and found differential responses to egg colors(for more details,see Supplementary Materials),highlighting that more work needs to examine the effect of model egg color on host egg rejection behavior.展开更多
基金supported by Key R&D projects in Ningxia(talent introduction project,2021BEB04015)Fundamental Research Funds for Central Universities,North Minzu University(2021KYQD05)supported by the National Natural Science Foundation of China(Nos.31970427,32270526)and the specific research fund of The Innovation Platform for Academicians of Hainan Province.
文摘Hosts evolve defensive strategies to minimize the reproductive costs of brood parasitism,in turn,the hosts'defense promote the optimization of cuckoo parasitism strategies(Soler 2017).Recognizing foreign eggs and selectively removing them from the nest can minimize the fitness costs associated with rearing parasitic fledglings(Soler 2017).Since Rothstein(1971)first experimented with the addition of a model egg to a host nest in the early incubation period to study host egg recognition,the use of model eggs has become one of the most important methods for testing the egg recognition abilities of hosts(Hauber et al.2019).Some studies have looked at various egg colors and their effect on host egg rejection and found differential responses to egg colors(for more details,see Supplementary Materials),highlighting that more work needs to examine the effect of model egg color on host egg rejection behavior.
