HERITABLE TRUE FITNESS AND BRIGHT BIRDS - A ROLE FOR PARASITES
HERITABLE TRUE FITNESS AND BRIGHT BIRDS - A ROLE FOR PARASITES
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DOI：
10.1126/science.7123238
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发表时间：
1982-01-01
期刊：
影响因子：
56.9
通讯作者：
ZUK, M
中科院分区：
文献类型：
--
作者：
HAMILTON, WD;ZUK, M
对北美雀形目鸟类血液寄生虫的 7 项调查的结合显示，慢性血液感染（5 种原生动物和 1 种线虫）的发病率与引人注目的表现（3 个特征：雄性亮度、雌性亮度和雄性鸣声）之间存在微弱但高度显着的物种关联。这一结果符合性选择模型，其中宿主和寄生虫的共适应循环产生一致的正后代健康回归。此外，动物通过仔细检查特征来选择具有遗传疾病抵抗力的配偶，其中充分表达取决于健康和活力。
Combination of 7 surveys of blood parasites in North American passerines reveals weak, highly significant association over species between incidence of chronic blood infections (5 genera of protozoa and 1 nematode) and striking display (3 characters: male brightness, female brightness and male song). This result conforms to a model of sexual selection in which coadaptational cycles of host and parasites generate consistently positive offspring-on-parent regression of fitness; in addition animals choose mates for genetic disease resistance by scrutiny of characteristics in which full expression is dependent on health and vigor.