Application of DNA Methylation–Based Age Estimation to Construct an Age Structure of Humpback Whales in a Newly Emerged Wintering Ground Around Hachijojima Island, Tokyo Metropolis, Japan
Sign Up to like & getrecommendations! Published in 2025 at "Ecology and Evolution"
DOI: 10.1002/ece3.70854
Abstract: ABSTRACT Using a noninvasive DNA methylation (DNAm)–based age estimation method, we investigate the age structure of humpback whales that newly emerged around Hachijojima Island, Tokyo Metropolis, Japan to uncover the role of this area for… read more here.
Keywords: age; age estimation; age structure; humpback whales ... See more keywords
Hunting, age structure, and horn size distribution in bighorn sheep
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Wildlife Management"
DOI: 10.1002/jwmg.21259
Abstract: Trophy hunting, the selective removal of animals for human recreation, can contribute to conservation when appropriately managed. Yet, little is known about how harvest rates or different definitions of trophy affect age structure and trophy… read more here.
Keywords: horn growth; size; growth; age structure ... See more keywords
Modeling COVID-19 transmission: effects of age structure and vaccination
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-12946-z
Abstract: A mathematical model for COVID-19 dynamics is developed, incorporating age structure, disease progression, and vaccination. Addressing gaps in existing literature, the model integrates heterogeneous intercohort mixing for realistic disease transmission, with a primary focus on… read more here.
Keywords: age; transmission; structure vaccination; age structure ... See more keywords
The demographic dividend is more than an education dividend
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2012286117
Abstract: The demographic dividend has long been viewed as an important factor for economic development and provided a rationale for policies aiming at a more balanced age structure through birth control and family planning. Assessing the… read more here.
Keywords: age; dividend; age structure; human capital ... See more keywords
Empirically based spatial projections of US population age structure consistent with the shared socioeconomic pathways
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Research Letters"
DOI: 10.1088/1748-9326/ab4a3a
Abstract: Spatially-explicit population projections by age are increasingly needed for understanding bilateral human-environment interactions. Conventional demographic methods for projecting age structure experience substantial challenges at small spatial scales. In search of a potentially better performing alternative,… read more here.
Keywords: age; population age; age structure; empirically based ... See more keywords
The neighborhood age structure and mental health
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Public Health"
DOI: 10.1093/eurpub/ckz186.582
Abstract: Against the background of urbanization and aging and the aim to design age-friendly cities, it is crucially important to understand whether and why older adults’ health may benefit from being surrounded by older peers mainly,… read more here.
Keywords: neighborhood age; age; age structure; health ... See more keywords
Trends in the size and age structure of marine fishes
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DOI: 10.1093/icesjms/fsy180
Abstract: Size-selective harvesting is expected to reduce the average age and weight of commercially exploited fishes. The loss of larger, older fish has been hypothesized to negatively affect metrics of population viability, such as spawning behaviour,… read more here.
Keywords: marine; age; size; age structure ... See more keywords
The ecology of ageing in wild societies: linking age structure and social behaviour
Sign Up to like & getrecommendations! Published in 2024 at "Philosophical Transactions of the Royal Society B: Biological Sciences"
DOI: 10.1098/rstb.2022.0464
Abstract: The age of individuals has consequences not only for their fitness and behaviour but also for the functioning of the groups they form. Because social behaviour often changes with age, population age structure is expected… read more here.
Keywords: social behaviour; age; ecology; age structure ... See more keywords
A New Approach to Understanding Population Change in Central and Eastern Europe
Sign Up to like & getrecommendations! Published in 2025 at "Population and Development Review"
DOI: 10.1111/padr.70029
Abstract: This study introduces a novel approach to decomposing population change by identifying the separate contributions of fertility, mortality, net migration, and initial age structure using a stationary population model. The strength of this scenario‐based decomposition… read more here.
Keywords: central eastern; population; population change; age structure ... See more keywords
A skeletochronological estimation of age structure of a population of the paddy frog, Fejervarya multistriata, from the central east of China
Sign Up to like & getrecommendations! Published in 2020 at "Animal Biology"
DOI: 10.1163/15707563-bja10044
Abstract: Age determination is crucial for a full understanding of population dynamics. In this context, we studied the age structure of the paddy frog, Fejervarya multistriata, in a population from the central east of China, using… read more here.
Keywords: frog fejervarya; age; paddy frog; age structure ... See more keywords
The age structure of cases as the key of COVID-19 severity: Longitudinal population-based analysis of European countries during 150 days.
Sign Up to like & getrecommendations! Published in 2021 at "Scandinavian journal of public health"
DOI: 10.1177/14034948211042486
Abstract: AIMS Over a million confirmed cases of the coronavirus disease (COVID-19) across 16 European countries were observed during the first wave of the pandemic. Epidemiological measures like the case fatality rate (CFR) are generally used… read more here.
Keywords: age; population based; age structure; european countries ... See more keywords