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When the Economy Falters, Do People Spend or Save? Responses to Resource Scarcity Depend on Childhood Environments
TLDR
It is proposed that people’s responses to resource scarcity depend on the harshness of their early-life environment, as reflected by childhood socioeconomic status (SES), and how people from different childhood environments responded to resource scarce is tested.
The energetics of lactation and the return to fecundity in wild chimpanzees
TLDR
The metabolic load of lactation in chimpanzees is examined, suggesting that the slow reproductive pattern in wild chimpanzees results not only from the direct expense of milk production but also from the long period that mothers require to recover their physical condition in a food-limited environment.
Reproductive Ecology of Female Chimpanzees
TLDR
Data on reproductive function in chimpanzees is reviewed, a species that demonstrates a risk‐averse reproductive strategy wherein reproductive investment is allocated in accordance with maternal condition and variation in resource access leads to highly variable reproductive success.
Reproductive endocrinology of wild female chimpanzees (Pan troglodytes schweinfurthii): methodological considerations and the role of hormones in sex and conception.
TLDR
The ovarian cycle profiles obtained corroborate previous findings in wild west African chimpanzees in suggesting that the fertile period is limited to the last week of tumescence, but that ovulatory timing is not as precise as previously thought.
Diet and reproductive function in wild female chimpanzees (Pan troglodytes schweinfurthii) at Kibale National Park, Uganda.
TLDR
The hypothesis that cycling and conception in chimpanzees are contingent upon high energy balance is supported, and they indicate that the availability of fruit is a key variable limiting reproductive performance in chimpanzees.
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