Evidence of equal maternal investment in the sexes in the polygynous and sexually dimorphic grey seal (Halichoerus grypus)

✍ Scribed by Per T. Smiseth; Svein-Håkon Lorentsen

• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 670 KB
• Volume: 36
• Category: Article
• ISSN: 0340-5443
• DOI: 10.1007/bf00177790

✦ Synopsis

In polygynous and sexually dimorphic mammals, parents may be expected to bias their investment towards sons because variation in reproductive success is usually higher among males than among females. Moreover, male reproductive success often depends on adult body size, which, in turn, may depend on the level of parental investment. We therefore predicted that in