6. Present Population Composition and Development Status in China

Autor: Yi, Zhang, author

Publikováno v: The China Society Yearbook, Volume 2. :93-107

Variations in the Birth Sex Ratio and Neonatal Mortality in a Natural Herd of Horses

Autor: Duncan, Patrick, Fritz, Hervé

Publikováno v: Behavioral Ecology and Sociobiology, 1997 Jan 01. 41(4), 243-249.

Externí odkaz: https://www.jstor.org/stable/4601385

A comparative study of litter size and sex composition in a large dataset of callitrichine monkeys

Autor: Monika Burns, Suzette D. Tardif, Sara Sullivan, Peter Galbusera, David Haig, Dominic Wormell, Sheila Wojciechowski, Jacqui Hooper, Simon Eyre, Miranda Stevenson, Amanda Embury, Arun Idoe, Mark Warneke, Judith M. Burkart, Agustín López Goya, Marcos Peromingo Quesada, Dakota E. McCoy, Jennifer Mickelberg, Jennifer Kotler, Brett M. Frye

Publikováno v: Am J Primatol

In many birds and mammals, the size and sex composition of litters can have important downstream effects for individual offspring. Primates are model organisms for questions of cooperation and conflict, but the factors shaping interactions among same

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e83dff12f98cf0bad0cedeec798cd64a
https://doi.org/10.1002/ajp.23038

DO RINGTAILED LEMURS EXHIBIT A SKEWED BIRTH SEX RATIO DEPENDING ON SOCIAL AND ENVIRONMENTAL CONDITIONS? A PRELIMINARY ANALYSIS OF A WILD POPULATION

Autor: TAKAHATA, Yukio, KOYAMA, Naoki, ICHINO, Shin'ichiro, MIYAMOTO, Naomi, SOMA, Takayo, NAKAMICHI, Masayuki

Publikováno v: African Study Monographs. 34(1):57-64

In a 13-year study, we examined the birth sex ratio (BSR) of wild ringtailed lemurs at Berenty Reserve in Madagascar. Their BSR represented an equal sex ratio at the population level, irrespective of population change. High-ranking females did not al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c2cc9a49301d5996d33693620db5a567
http://hdl.handle.net/2433/173532

Time Trend of the Male Proportion at Birth in Brazil, 1979-2004

Autor: Luciana Scarlazzari Costa, Gerusa Gibson, Sergio Koifman

Publikováno v: International Journal of Environmental Research and Public Health
Volume 6
Issue 8
Pages 2193-2204
International Journal of Environmental Research and Public Health, Vol 6, Iss 8, Pp 2193-2204 (2009)

Several studies suggest that exposure to environmental endocrine disrupters can reduce the number of male births, and therefore, the male proportion at birth (also denominated birth ratio or sex ratio at birth) can be used as a sentinel health indica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4866e56bbce91bff67ad274df1d055c
https://doi.org/10.3390/ijerph6082193