منابع مشابه
Evolution of reproductive life histories in island birds worldwide.
Island environments typically share characteristics such as impoverished biotas and less-seasonal climates, which should be conducive to specific adaptations by organisms. However, with the exception of morphological studies, broad-scale tests of patterns of adaptation on islands are rare. Here, I examine reproductive patterns in island birds worldwide. Reproductive life histories are influence...
متن کاملAnalysis of completed reproductive histories: a cautionary tale.
Recent authors have suggested that cross-sectional studies of adverse outcome of pregnancy are misleading, and that the only valid method of analysis controls for eventual number of pregnancies. The present study shows, by simple examples, that such a method produces results that cannot be interpreted in the way claimed for them.
متن کاملAbortion and Womens Mental Health
First, the methodological difficulties of these studies, especially due to confusing factors, not always easy to control adequately, such as the heterogeneity of women’s groups evaluated in regards to age, race, social status and religious beliefs; the presence of psychological changes or lack thereof, prior to the abortion of; the desire or lack thereof for the pregnancy; whether a woman can r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Human Biology
سال: 2014
ISSN: 1042-0533,1520-6300
DOI: 10.1002/ajhb.22543