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...
supported by the National Natural Science Foundation of China(No.31672303 to CY,and 31772453 to WL)
Background: Laying sequence has important effects on eggshell color and embryonic development in birds. Some birds can allocate resources unevenly among the eggs within a clutch, prioritizing those at the beginning of...