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Ecology and Evolution, Volume 16, Issue 2, February 2026.Animals that live in a wide range of environments possess plastic traits such as colour change, but most research has only looked at this within single populations. In this study, we tested four populations of the Arabian killifish from marine and freshwater ecosystems, examining how well they change colour against different backgrounds.
Ateah Alfakih +2 more
wiley +1 more source
DEMOGRAPHIC CHARACTERISTICS OF THE BAĆINA PARISH (1870. – 1880.) [PDF]
Hum, 2013 Both components of the natural movement of the population are on the transition from high to low. The average annual birth rate ranges at the level of 29.60 ‰ and thus found itself at the beginning of the demographic transition, fertility, and the ...
Žarko Dugandžić
doaj
Sexual Dimorphism in Fin Size and Shape in Bluefin Killifish
Ecology and Evolution, Volume 16, Issue 2, February 2026.This study shows very high levels of sexual dimorphism in dorsal and anal fin traits compared to other fins. Dorsal and anal fin traits are also correlated, such that individuals with large dorsal fins also have large anal fins. Together, this suggests strong sexual selection on these functionally integrated traits.
Kasey Brockelsby +4 more
wiley +1 more source
The geographic context of male nuptiality in western Germany during the 1980s and 1990s [PDF]
This paper studies the relationship between characteristics of men’s place of residence and the probability of entering marriage in western Germany during the 1980s and 1990s.
Karsten Hank
core
Social and family constructions of marital endogamy in 19th Century Eastern Belgium [PDF]
, 2008 C
NEVEN, M, ORIS, M, Van de Putte, Bart
core +1 more source
Nuptiality and fertility in Saudi Arabia: An appraisal of census data
Middle East Fertility Society Journal, 2013 Saudi Arabia constitutes bulk of the Arabian Peninsula. Higher birth and lower death rate with higher levels of expectation of life characterizes Saudi Arabian demography. This attempt at appraising nuptiality and fertility is based on censuses. Marriage
Asharaf Abdul Salam
doaj +1 more source
Marriage Patterns in the United States [PDF]
This paper analyzes cohort marriage patterns in the United States in order to determine whether declining rates of first marriage are due to changes in the timing of marriage, the incidence of marriage, or both.
David E. Bloom, Neil G. Bennett
core
Demographic Shocks: The View from History [PDF]
The paper will basically deal with four issues. The first one puts current changes or shifts into a historical comparative perspective. The second deals with "traditional" shocks or violent disturbances of the system and their consequences.
Livi Bacci, Massimo
core +3 more sources
Transition of nuptiality and fertility onset in the Czech Republic since the 1990s: the role of women’s education and its expansion [PDF]
In this article we argue that social and economic changes in the past fifteen years have influenced distinct socio-economic categories of women differently.
Kryštof Zeman
core