Financial support was provided by the National Natural Science Foundation of China(Grants 31672296 and 31172104).
Background:Parental investment by birds is limited by the habitat environment,and a male parent increases its effort to reproduce in birds that live in high-altitude areas.Methods:A study of the reproductive behaviour...
supported by the National Natural Science Foundation of China(Grant Nos.31672296 and 31172104)。
Background:As one of the reproductive strategies adopted by bird species,variation in investment in egg production and its influencing factors are important and well-studied subjects.Intraclutch changes in egg size as...