Differential Maternal Testosterone Allocation among Siblings Benefits Both Mother and Offspring in the Zebra Finch Taeniopygia guttata
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چکیده
منابع مشابه
Differential maternal testosterone allocation among siblings benefits both mother and offspring in the zebra finch Taeniopygia guttata.
Parents are selected to preferentially invest in the offspring with highest reproductive value. One mechanism for achieving this is the modification of competitive asymmetries between siblings by maternal hormones. In many organisms, offspring value varies according to birth position in the brood, which determines survival chances and competitive advantage over access to resources. In birds, va...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2011
ISSN: 0003-0147,1537-5323
DOI: 10.1086/660278