birth interval การใช้

• Male fitness would benefit from inseminating other females during a birth interval.
• Together with a long lactation period, orangutans also have a long birth interval.
• Other factors include shorter birth intervals and possibly a lower likelihood of using reliable contraception.
• The longer the birth interval, the less likely that the second fetus will be born alive,
• The median birth interval in Nepal is 36 months, which reduces the risk of infant death.
• Unplanned pregnancies and birth intervals of less than twenty-four months are known to correlate with low birth weights and delivery complications.
• Recruitment of help from kin and husbands may compensate by enabling females to reduce birth intervals by weaning offspring at an earlier age.
• Once a female gives birth, she usually does not breed again until the first calf is weaned, resulting in a 4-to 5-year birth interval.
• For females, the inter-birth interval, or time between successive offspring, is typically one year, and in captivity, females can remain reproductively active until the age of 23.
• Guatemala's high fertility rate is a result of poor family planning initiatives, which result in young pregnancies, large families with many children, shorter birth intervals, and deficient growth within children.
• Foley and Fitzgerald objected to the idea that synchrony could have been a factor in human evolution on the grounds that for hominins with inter-birth intervals of 3 5 years, achieving synchrony was unrealistic.
• An infant's birthmother, in a climate of allomothering, may gain time relieved from parental duties, allowing her to forage more efficiently or reproduce more quickly ( i . e . reduce her inter-birth interval ).
• He received his Ph . D . from the University of Iowa in 1983, with a thesis on " Determinants of the first birth interval . " Prior to joining University of Texas at Arlington, Pillai taught at the University of North Texas, University of Iowa, and University of Zambia.
• Pilot whales have one of the longest birth intervals of the cetaceans, For short-finned pilot whales of the Southern Hemisphere, births are at their highest in spring and autumn, while in Northern Hemisphere, the time in which calving peaks can vary by population . but this is not as common in females of long-finned pilot whales.
• On the other hand, while conceding that it would be impossible to get clockwork synchrony throughout an inter-birth interval, Power et al . argued that once we take account of birth seasonality  enhancing the effects of menstrual synchrony by clumping fertile cycles within a relatively brief time-window  it emerges that reproductive synchrony can be effective as a female strategy to undermine primate-style sexual monopolization by dominant males.