Results 11 to 20 of about 2,848,057 (332)

Experimental evolution of a pheromone signal

Ecology and Evolution, 2022
Sexual signals are important in speciation, but understanding their evolution is complex as these signals are often composed of multiple, genetically interdependent components.
Thomas Blankers, Elise Fruitet, Emily Burdfield‐Steel, Astrid T. Groot   +3 more
doaj   +1 more source

Interactions With Plant Defences Isolate Sympatric Populations of an Herbivorous Mite

Frontiers in Ecology and Evolution, 2022
Host plant specialisation can promote evolutionary divergence between herbivore populations associated with different plant species. While the mechanisms by which specialist species exploit their hosts have been studied widely across taxa, less is known ...
Ernesto Villacis-Perez, Ernesto Villacis-Perez, Juan Manuel Alba, Julien Cotte, Zeno van Loon, Johannes A. J. Breeuwer, Thomas Van Leeuwen   +6 more
doaj   +1 more source

Progression of the smoking epidemic in high-income regions and its effects on male-female survival differences: a cohort-by-age analysis of 17 countries

BMC Public Health, 2020
Background Of all lifestyle behaviours, smoking caused the most deaths in the last century. Because of the time lag between the act of smoking and dying from smoking, and because males generally take up smoking before females do, male and female smoking ...
Maarten Wensink, Jesús-Adrián Alvarez, Silvia Rizzi, Fanny Janssen, Rune Lindahl-Jacobsen   +4 more
doaj   +1 more source

Juvenile Spider Mites Induce Salicylate Defenses, but Not Jasmonate Defenses, Unlike Adults

Frontiers in Plant Science, 2020
When plants detect herbivores they strengthen their defenses. As a consequence, some herbivores evolved the means to suppress these defenses. Research on induction and suppression of plant defenses usually makes use of particular life stages of ...
Jie Liu, Jie Liu, Saioa Legarrea, Juan M. Alba, Lin Dong, Rachid Chafi, Steph B. J. Menken, Merijn R. Kant   +7 more
doaj   +1 more source

Protocol for the PATHOME study: a cohort study on urban societal development and the ecology of enteric disease transmission among infants, domestic animals and the environment

BMJ Open, 2023
Introduction Global morbidity from enteric infections and diarrhoea remains high in children in low-income and middle-income countries, despite significant investment over recent decades in health systems and water and sanitation infrastructure.
Blessing Mberu, Collins Ouma, Abdhalah Ziraba, Kelly K Baker, Sheillah Simiyu, Phylis Busienei, Fanta D Gutema, Bonphace Okoth, John Agira, Christine S Amondi, Alexis G Kapanka, Abisola Osinuga, Daniel K Sewell, Sabin Gaire, Innocent K Tumwebaze   +14 more
doaj   +1 more source

Stratification in health and survival after age 100: evidence from Danish centenarians

BMC Geriatrics, 2021
Background The existence of a super-select group of centenarians that demonstrates increased survivorship has been hypothesized. However, it is unknown if this super-select group possesses similar characteristics apart from extreme longevity.
Jesús-Adrián Alvarez, Anthony Medford, Cosmo Strozza, Mikael Thinggaard, Kaare Christensen   +4 more
doaj   +1 more source

Human population dynamics

Annals of Human Biology, 2001
Time-series analysis of parish register series can be used to study human population dynamics at three different levels: (i) The metapopulation of preindustrial rural England. A short wavelength, exogenous oscillation in the burials series of 404 parishes can be detected which, it is suggested, was driven by a cycle of malnutrition associated with ...
Duncan, S, Duncan, C, Scott, S
openaire   +2 more sources

Mapping adolescent sexual and reproductive health research in sub-Saharan Africa: protocol for a scoping review

BMJ Open, 2020
Introduction Previous studies have attempted to review the vast body of evidence on adolescent sexual and reproductive health (ASRH), but none has focused on a complete mapping and synthesis of the body of inquiry and evidence on ASRH in sub-Saharan ...
Anthony Idowu Ajayi, Boniface Ayanbekongshie Ushie, Meggie Mwoka, Emmy Kageha Igonya, Ramatou Ouedraogo, Kenneth Juma, Isabella Aboderin   +6 more
doaj   +1 more source

Modeling and forecasting sex differences in mortality: a sex-ratio approach

Genus, 2018
Female and male life expectancies have converged in most industrialized societies in recent decades. To achieve coherent forecasts between females and males, this convergence needs to be considered when forecasting sex-specific mortality.
Marie-Pier Bergeron-Boucher, Vladimir Canudas-Romo, Marius Pascariu, Rune Lindahl-Jacobsen   +3 more
doaj   +1 more source

Potential gains in life expectancy by reducing inequality of lifespans in Denmark: an international comparison and cause-of-death analysis

BMC Public Health, 2018
Background Reducing lifespan inequality is increasingly recognized as a health policy objective. Whereas lifespan inequality declined with rising longevity in most developed countries, Danish life expectancy stagnated between 1975 and 1995 for females ...
José Manuel Aburto, Maarten Wensink, Alyson van Raalte, Rune Lindahl-Jacobsen   +3 more
doaj   +1 more source