Energetics and reproductive effort

Article Abstract:

Human reproductive physiology displays characteristic patterns that can be viewed as mechanisms that help optimize reproductive effort in the face of environmental energetic constraints. Reproductive effort during gestation is highly buffered from environmental energetic constraints, but the duration of gestation and final birthweight are both very sensitive to maternal energy availability.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Stress and female reproductive function: a study of daily variations in cortisol, gonadotrophins, and gonadal steroids in a rural Mayan population

Article Abstract:

A longitudinal study of stress and women's reproduction in a small Kaqchikel Mayan community in rural Guatemala is reported. The understanding of the effects of stress on the reproductive axis in women is mainly derived from clinical studies of individual stressors.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

How to measure reproductive success?

Article Abstract:

Measures of reproductive success play an important role in human behavioral ecology, but sometimes lack rigor or are subject to hidden biases. The strengths and weaknesses of alternative methods for measuring reproductive success are discussed.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: