Results 21 to 30 of about 1,669 (161)
Populační vývoj Česka v roce 2023
DemografieThe article describes demographic development in Czechia during 2023 and sets it in the context of the previous five years. It focuses on both population stock and the main demographic processes, namely fertility, mortality, nuptiality, the divorce rate,
Jana Koukalová
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Historical reproductive patterns in developed countries: Aggregate-level perspective
Demographic Research, 2018 Background: One of the fundamental arguments sustaining the classical demographic transition theory was that couples wanted to have a given number of surviving children, not a specific number of births. However, this cornerstone of transition theory came
Jesús Sánchez-Barricarte
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Demographic measurement: nuptiality, mortality, migration and growth
, 2001 This article presents the principal ways in which nuptiality, mortality, migration, and population growth are currently measured in demography. It follows on from the article Demographic Measurement: General Issues and Measures of Fertility, the first ...
Ní Bhrolcháin, Máire +1 more
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Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.ABSTRACT Amphibians are among the most threatened taxonomic groups, with many species experiencing rapid declines that have resulted in small, isolated populations vulnerable to inbreeding depression and reduced fertility. One major outcome of inbreeding is lowered fecundity, often linked to morphological changes in gametes.
Nadine Nolan +6 more
wiley +1 more source
Pest Management Science, Volume 81, Issue 4, Page 2237-2247, April 2025.The predatory effect of the honey‐buzzard affects the reproductive performance of Asian‐hornet colonies, decreasing the density of workers over distance and time. The foraging distances of the honey‐buzzard concentrates within the first 2000 m from nest, which supports the results observed.
Jorge Ángel Martín‐Ávila +3 more
wiley +1 more source
Was malthus right? a var analysis of economic and demographic interactions in pre-industrial England [PDF]
, 2006 This paper shows that the interaction between economic and demographic variables in England before the onset of modern economic growth did not fit some crucial assumptions of the Malthusian model. I estimated a vector autoregression for data on fertility,
Nicolini Alessi, Esteban Alberto +2 more
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Populační vývoj Česka v roce 2025
DemografieThe article describes demographic development in Czechia during 2025 and sets it in the context of the last decade. The study focuses on the main demographic processes: fertility, mortality, nuptiality, the divorce rate, and migration.
Jana Koukalová
doaj +1 more source
Evidence of parental care as a newly identified reproductive isolating barrier
Journal of Animal Ecology, EarlyView.Behavioural variation can contribute to reproductive isolation and can be an important driver of speciation. Here, we show that a previously undescribed mechanism, parental care, can function as a postzygotic reproductive isolating barrier when dysregulated in hybrids.
Colby Behrens +6 more
wiley +1 more source
Nuptiality trends and fertility transition in Latin America [PDF]
, 1996 he purpose of this chapter is to determine the role played by nuptiality changes in the fertility transition in Latin America. As other contributions to this book show, most Latin American countries have reduced substantially their fertility since 1960 ...
Rosero Bixby, Luis
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Form, function, and evolution of worker–worker social carrying in ants
Insect Science, EarlyView.Social carrying is a widespread ant recruitment behavior in which one worker physically transports another, usually during nest relocation. Across 62 species, phylogenetic analyses suggest that it originated as a stereotypical, coordinated behavior, with carrying posture largely conserved within subfamilies. Its occurrence across colony sizes indicates
Arik Dorfman +2 more
wiley +1 more source