• Populations, communities, and ecosystems are ecological units that can be considered along a scale of increasing system complexity and structure. (frontiersin.org)
  • Because it can be applied to environmental samples, the approach we present is broadly applicable to measuring population growth, mortality, and associated biogeochemical process rates of microbial taxa for a wide range of ecosystems and can help reveal how individual microbial populations drive biogeochemical fluxes. (osti.gov)
  • Population dynamics is the type of mathematics used to model and study the size and age composition of populations as dynamical systems. (wikipedia.org)
  • However, the inability to measure population-specific rates, such as growth, for microbial taxa within natural assemblages has limited ecologists' understanding of how microbial populations interact to regulate ecosystem processes. (osti.gov)
  • By applying this model to phylogenetic marker sequencing data collected from stable-isotope probing studies, we estimate rates of growth, mortality, and turnover for individual microbial populations within soil assemblages. (osti.gov)
  • Robust microbial classification systems are essential, but their definition is complicated by the large size and high diversity of microbial populations combined with a widespread horizontal genetic exchange. (researchgate.net)
  • The formula can be read as follows: the rate of change in the population (dN/dT) is equal to growth (aN) that is limited by carrying capacity (1 − N/K). From these basic mathematical principles the discipline of population ecology expands into a field of investigation that queries the demographics of real populations and tests these results against the statistical models. (wikipedia.org)
  • The field of population ecology often uses data on life history and matrix algebra to develop projection matrices on fecundity and survivorship. (wikipedia.org)
  • The concept is commonly used in insect population ecology or management to determine how environmental factors affect the rate at which pest populations increase. (wikipedia.org)
  • Marine Animal Ecology contributes to the fields of population genetics and population ecology and studies how population dynamics change over time and space. (wur.nl)
  • In many areas of the social sciences, distance and connection regularly figure into models of dynamics (E.g. demography and ecology, network analysis). (ucr.edu)
  • Understanding how population-level dynamics contribute to ecosystem-level processes is a primary focus of ecological research and has led to important breakthroughs in the ecology of macroscopic organisms. (osti.gov)
  • A decades-long study of introduced voles on the Norwegian islands of Svalbard is helping to answer a longstanding puzzle of Arctic ecology -- what drives the well-established population cycles of small Arctic mammals, such as voles and lemmings. (sciencedaily.com)
  • A decades-long study of voles on the Norwegian archipelago of Svalbard is offering insights into a longstanding puzzle of Arctic ecology -- effectively, what drives the well-established population cycles of small Arctic mammals, such as voles and lemmings. (sciencedaily.com)
  • Population dynamics has commonly been explored in high-school and undergraduate-level courses in ecology. (scirp.org)
  • The techniques used for teaching population dynamics can provide students with the required basic information for learning fundamental concepts in population ecology. (scirp.org)
  • However, population dynamics is a complex branch of population ecology that has an essentially quantitative nature. (scirp.org)
  • In this study, we propose an alternative methodology for teaching basic concepts of population ecology at the high-school and undergraduate levels, using mathematical models and numerical simulations on a microcomputer. (scirp.org)
  • Population ecology: An introduction to computer simulations. (scirp.org)
  • There are vast knowledge gaps pertaining to the ecology and population dynamics of sea turtles that don't nest on the South African coastline, such as C. mydas , E. imbricata and L. olivacea . (sharklife.co.za)
  • Our group at the IAC consists of experienced researchers in cosmological simulations, dynamical studies, stellar populations and morphological properties of galaxies up to high redshift. (iac.es)
  • Understanding different stellar populations within our galaxy (and nearby galaxies) can tell us much about the history of our local Universe. (lu.se)
  • We observe the stellar populations with high¬-resolution spectrometers working in the infrared on the Gem¬ini, Keck, VLT, and Lowell telescopes. (lu.se)
  • Subjects covered include demography, population regulation and life history strategies in different animal and plant species. (ntnu.edu)
  • The model's ability to accurately reconstruct the dynamics and demography of An. (bvsalud.org)
  • Within species, there is variation among populations, groups of animals in a particular area that interbreed. (wur.nl)
  • Oligomeric species populated during the aggregation of the Aβ42 peptide have been identified as potent cytotoxins linked to Alzheimer's disease, but the fundamental molecular pathways that control their dynamics have yet to be elucidated. (nih.gov)
  • The course provides an introduction to basic concepts used in analyses of single-species population dynamics. (ntnu.edu)
  • To understand species-level population dynamics, we need to understand the reproductive decisions made by individuals. (santafe.edu)
  • Since Delta smelt have a short one to two year lifespan, they readily lend themselves to spawner-recruitment (S/R) analyses that help define the population dynamics of the species. (calsport.org)
  • Background: Microtine species in Fennoscandia display a distinct north-south gradient from regular cycles to stable populations. (ruc.dk)
  • Although the spatial structure of the environment is known to influence predator-prey dynamics of a wide range of species, it has scarcely been considered in relation to the Fennoscandian gradient. (ruc.dk)
  • The results of long-term monitoring will improve understanding on population size, sex ratios and health status of these species occurring in the iSimangaliso Wetland Park. (sharklife.co.za)
  • Then we look at problems involving coexisting species in communities, beginning with the dynamics and coexistence of two species engaging in intraguild mutualism, in which they are both specialist predators on a common, shared resource, but benefit from each other's presence because of increased predation efficiency, leading to stable coexistence. (fapesp.br)
  • Finally, we explore the dynamics of predator-prey communities in which each population is composed by many species, characterized by their traits. (fapesp.br)
  • Intrinsic and extrinsic factors affect vital rates and population-level processes, and understanding these factors is paramount to devising successful management plans for wildlife species. (oregonstate.edu)
  • Maximum-clade credibility tree for dengue virus serotype 1 in study of transmission dynamics of dengue in large and small population centers, northern Ecuador. (cdc.gov)
  • funestus has several unique ecological features that could generate distinct transmission dynamics and responsiveness to interventions. (bvsalud.org)
  • This points to the importance of top-down, predator-prey regulation for small mammal populations, he notes. (sciencedaily.com)
  • The method of estimating dietary blubber using predator hair, demonstrated here, provides a new metric to monitor predator-prey relationships that affect individual health and population demographics. (usgs.gov)
  • Survival, migration patterns and population genetics will be studied and compared with patterns of large populations. (wur.nl)
  • In other words, the population abundance from year to year is determined by the number of eggs laid each year and the survival of each egg cohort to adults a year later. (calsport.org)
  • This study documents the family structure of a pelagic spawner, Pinna nobilis , which is facing a major crisis that threatens its survival as most of its populations have been decimated by a parasite, Haplosporidium pinnae . (datadryad.org)
  • At a patch scale, demographic traits (e.g., survival, breeding success) and the population growth rate can be influenced by density either negatively (e.g., competition effect) or positively (e.g. (uzh.ch)
  • In this study, we examine how density is related to demographic processes at both the pond level (survival and population growth) and the SSP level (between‐pond dispersal) in a pond‐breeding amphibian, the great crested newt (Triturus cristatus). (uzh.ch)
  • Then, using a second CR multievent model, we examined whether survival and recapture rates were influenced by population density in a pond. (uzh.ch)
  • The objectives of this work were to develop a model which will (1) reconstruct the population dynamics , survival , and fecundity of wild An. (bvsalud.org)
  • Mathematical models used to calculate changes in population demographics and evolution hold the assumption of no external influence. (wikipedia.org)
  • Population dynamics focusses on the study of demographics, such as growth and decline, and the environmental processes that driving them. (wur.nl)
  • Simplified population models usually start with four key variables (four demographic processes) including death, birth, immigration, and emigration. (wikipedia.org)
  • Evidence suggests an important role for the population age distribution in economic inequality, and coupled with demographic projections of an aging population and continued low fertility portends a broad trend toward greater equality over at least the next two decades. (marginalrevolution.com)
  • Fauteux used this data and brought to bear demographic analyses to strengthen the team's hypothesis about the importance of predators in regulating the population dynamics. (sciencedaily.com)
  • The team then tested theoretical models with the results from Fauteux's analyses to determine if the observed demographic processes could lead to similar population cycles observed elsewhere. (sciencedaily.com)
  • In this talk I will show that the combination of two ubiquitous biological mechanisms, demographic differences between juvenile and adult individuals and the energy requirements to keep a living body alive (somatic maintenance costs), is sufficient to overturn a large number of ecological rules-of-thumb derived from the unstructured population models that form the basis of current ecological theory. (santafe.edu)
  • In addition, the findings indicate that population growth was negatively related to density in all 12 ponds.These results support the hypothesis that in SSPs, density may have multiple and contrasting effects on demographic parameters and growth rates within local populations as well as on dispersal. (uzh.ch)
  • The increasing amount of archaeological data, better documentation and new technologies now provide excellent opportunities for studying relative demographic fluctuations and regional variation even in Stone Age populations. (lu.se)
  • The multi-scalar approach - combined with integration of multiple lines of evidence ranging from of dwellings, lithics and rock art sites and landscapes - will allow us to address a new generation of research questions pertaining to the inter-locking demographic, economic and social-cultural dynamics of prehistoric forager societies from a substantially stronger evidential and methodological platform. (lu.se)
  • ABSTRACT The effect of population growth and demographic transition on economic development has been well documented. (who.int)
  • The population growth in Iraqi Kurdistan is passing through a critical stage of demographic transition. (who.int)
  • It is, in fact, extremely likely that the region will fail to efficiently move through the demographic transition and will experience a long period in the demographic trap, i.e. the population will grow steadily and rapidly owing to the high fertility and low mortality rates. (who.int)
  • Climate change impacts may drive affected populations to migrate. (feem.it)
  • Higher cliffs with documented higher productivity (presumably indicative of higher-quality habitat), are a priority for continued protection from potential nearby development and disturbance to minimize population-level impacts. (oregonstate.edu)
  • The two populations provide an ideal opportunity to explore the impacts of vaccination on viral evolution, infection rates, and transmission. (cdc.gov)
  • funestus populations in southern Tanzania , (2) quantify impacts of density dependence on the dynamics, and (3) assess seasonal fluctuations in An. (bvsalud.org)
  • This means we have a real-life, simple model in which to test the influences on their populations, when the regulation from predators is absent. (sciencedaily.com)
  • Also, density-dependent regulation occurs in raptor populations, as territory size is related to resource availability. (oregonstate.edu)
  • death) was negatively correlated with the number of adult Arctic peregrines on the cliff the previous year, suggesting effects of density-dependent population regulation. (oregonstate.edu)
  • Biosocial mechanisms of population regulation / edited by Mark N. Cohen, Roy S. Malpass, and Harold G. Klein. (who.int)
  • will use genomic data to infer recent inbreeding history of the shark population. (wur.nl)
  • The aim is to develop a genomic tool to monitor inbreeding in wild populations. (wur.nl)
  • In the present study, we examine whether similar dynamics are also observed during grasping movements, which involve fundamentally different patterns of kinematics and muscle activations. (nih.gov)
  • The study also suggests a way for teachers and professors to analyze population patterns with real data. (scirp.org)
  • The population dynamics of the San Francisco Bay-Delta estuary's endangered Delta smelt can be viewed using patterns in annual indices of their abundance published by the California Department of Fish and Wildlife (CDFW). (calsport.org)
  • Although the content of working memory (WM) can be decoded from the spatial patterns of brain activity in early visual cortex, how populations encode WM representations remains unclear. (mit.edu)
  • The vole population fluctuated dramatically over the two decades-from peaks of about 120 per hectare, to an almost total absence. (sciencedaily.com)
  • Subsequently, these time series were subjected to statistical autoregressive modelling, to investigate the effects on vole population dynamics of making predators more specialised, of altering the breeding season, and increasing the level of habitat fragmentation. (ruc.dk)
  • Topping, Chris J. / How Predation and Landscape Fragmentation Affect Vole Population Dynamics . (ruc.dk)
  • Norwegian scientists, including study co-authors Dr. Rolf A. Ims, Dr. Audun Stien, and Dr. Nigel G. Yoccoz at the Arctic University of Norway, and Dr. Eva Fuglei at the Norwegian Polar Institute, monitored populations of the voles over two decades in the 1990s and 2000s. (sciencedaily.com)
  • However, the scientists found that unlike the populations of voles in other Arctic and boreal regions, the voles of Svalbard showed no significant cyclic pattern in their population dynamics. (sciencedaily.com)
  • Examples of such problems are the minimum size of viable populations, optimal harvest strategies of renewable resources and ecological effects of expected changes in climate. (ntnu.edu)
  • The ecological detective: Monographs in population biology. (scirp.org)
  • Methodology/Principal Findings: By using a spatially explicit computer simulation model based on behavioural and ecological data from the field vole (Microtus agrestis), we generated a number of repeated time series of vole densities whose mean population size and amplitude were measured. (ruc.dk)
  • We also develop an eco-epidemiological model for malaria transmission in the Atlantic Forest that incorporates feedbacks from ecological factors into biting rate and mosquito population size. (fapesp.br)
  • This review is devoted to approximate aggregation methods that are based on the existence of different time scales, which is the case in many real systems as ecological ones where the different organization levels (individual, population, community and ecosystem) possess a different characteristic time scale. (upm.es)
  • Understanding the mechanisms that regulate the dynamics of spatially structured populations (SSP) is a critical challenge for ecologists and conservation managers. (uzh.ch)
  • Understanding the processes that support population, community, and ecosystem dynamics is fundamental to sound management and conservation decisions. (frontiersin.org)
  • Internal population processes such as births and deaths occur at a local level, while external processes such as dispersal take place at an inter‐population level. (uzh.ch)
  • The aim of this project for the East of England Local Government Association (EELGA) is to meet the need for authorities across the Wider South East (WSE) to understand the dynamics of migration - so far as possible from existing research and readily available data - particularly in relation to implications of future growth of the capital. (lse.ac.uk)
  • However, migration decisions in response to climate change could have broader effects on population dynamics in affected regions. (feem.it)
  • and institutions regulating fishery resource and economic changes on migration rather than population pressure on fishery resources. (cmi.no)
  • We also investigate a model for population migration from a patch in a scenario of strong seasonality, where dispersal is possible only during part of the year, leading to distinct scenarios depending on that duration relative to the characteristic time for diffusion into the matrix. (fapesp.br)
  • A secondary part of the study looked at the influence of climate on the population fluctuations. (sciencedaily.com)
  • These concepts will be applied in models for analysing fluctuations in size of populations in space and time. (ntnu.edu)
  • Currently, it is unclear how these mating decisions about individual-level traits lead to different sexual network structures at a larger scale, and in turn how this influences the reproductive output of the population. (santafe.edu)
  • We consider the Moran model with recombination, which describes the evolution of the genetic composition of a population under recombination and resampling. (tue.nl)
  • Approximate aggregation techniques allow one to transform a complex system involving many coupled variables into a simpler reduced model with a lesser number of global variables in such a way that the dynamics of the former can be approximated by that of the latter. (upm.es)
  • Population dynamics focuses on aggregations of individuals (including at different trophic levels), community dynamics involves groups of populations, and ecosystem dynamics can include multiple communities, usually across the range of trophic levels in a system. (frontiersin.org)
  • This section addresses all major aspects of population, community, and ecosystem dynamics, with an emphasis on inter- and intra-specific interactions, organism-environment relationships, numerical cycles and stability, meta-populations and meta-communities, functional diversity and connectance, networks, food webs and energy flow. (frontiersin.org)
  • See also exponential population growth and logistic population growth. (wikipedia.org)
  • This interactive simulation allows students to explore two classic mathematical models that describe how populations change over time: the exponential and logistic growth models. (biointeractive.org)
  • The exponential growth model describes how a population changes if its growth is unlimited. (biointeractive.org)
  • Describe the assumptions of the exponential and logistic growth models, and how those assumptions do or do not apply to different populations. (biointeractive.org)
  • By developing a general approach that combines theory, experiment and simulation, we reveal, in molecular detail, the mechanisms of Aβ42 oligomer dynamics during amyloid fibril formation. (nih.gov)
  • High-throughput spectroscopy together with a Bayesian approach are shown to provide unique insight in an inhomogeneous nanomaterial population, and can reveal electronic dynamics otherwise requiring complex pump-probe experiments in highly non-equilibrium conditions. (lu.se)
  • All manuscripts must be submitted directly to the section Population, Community, and Ecosystem Dynamics, where they are peer-reviewed by the Associate and Review Editors of the specialty section. (frontiersin.org)
  • Population dynamics overlap with another active area of research in mathematical biology: mathematical epidemiology, the study of infectious disease affecting populations. (wikipedia.org)
  • The Population dynamics of infectious diseases : theory and applications / edited by Roy M. Anderson. (who.int)
  • Our work provides insight into factors affecting a population during and after recovery, and demonstrates how the Dail-Madsen model can be used for any unmarked population with multiple years of abundance data collected through repeated surveys. (oregonstate.edu)
  • Our aim here is to unveil the nature of the Milky Way stellar structures and populations using detailed elemental abundance data from large spectroscopic surveys of the Milky Way (the Gaia-ESO survey and upcoming WEAVE and 4MOST surveys). (lu.se)
  • Population dynamics : fertility and mortality in Africa , proceedings of the Expert Group Meeting on Fertility and Mortality Levels and Trends in Africa and their Policy Implications, Monrovia, Liberia, 26 November - 1 December 1979. (who.int)
  • Particular emphasis will be made to how these models can be used in analyses of the consequences for population viability of different kinds of human activities such as expected changes in climate, habitat destruction and fragmentation and harvesting. (ntnu.edu)
  • We use individual life-history traits (birth, death and development rates) and their response to temperature to parametrize the population dynamics model, applying it to two sets of questions: population viability and (temperature-dependant) intra-specific competition. (fapesp.br)
  • Dynamics of a recovering Arctic bird population: the importance of climate, density dependence, and site quality. (oregonstate.edu)
  • This report employs S/R analyses to review long-term trends in the population indices of the Delta smelt. (calsport.org)
  • The analyses support the hypotheses that abundance (adult numbers) and recruitment into the adult population are primarily controlled by the numbers of adult spawners, adjusted by wet-dry year differences in production of juveniles. (calsport.org)
  • systems models tend to give us better leverage over understanding the range-of-motion and historical dynamics types of problems. (ucr.edu)
  • The aim of the course is to give the students an in-depth understanding of general principles in population dynamics with emphasis on how they can be applied in practice to analyse different kinds of data. (ntnu.edu)
  • The effective assimilation of this topic should consider basic aspects of population theory, which involves the conceptual understanding of mathematical models. (scirp.org)
  • Attitude towards gender norms in Ghana: understanding the dynamics among men and women in intimate relationships. (bvsalud.org)
  • The logistic growth model describes how a population changes if there is an upper limit to its growth. (biointeractive.org)
  • This study aims to monitor the population fluctuation and infestation rate of T. absoluta on tomato crop under glasshouse and open field conditions. (omicsonline.org)
  • We introduce a novel framework to predict the population dynamics of cold-blooded animals taking into account temperature variation and stage structure. (fapesp.br)
  • by exploiting lifetime variation across the population, hot-carrier dynamics is revealed at the sub-picosecond timescale showing interband electronic dynamics. (lu.se)
  • The algebraic symbols b, d and r stand for the rates of birth, death, and the rate of change per individual in the general population, the intrinsic rate of increase. (wikipedia.org)
  • The rate at which a population increases in size if there are no density-dependent forces regulating the population is known as the intrinsic rate of increase. (wikipedia.org)
  • It is d N d t = r N {\displaystyle {\frac {dN}{dt}}=rN} where the derivative d N / d t {\displaystyle dN/dt} is the rate of increase of the population, N is the population size, and r is the intrinsic rate of increase. (wikipedia.org)
  • Rather, the grasp-related neuronal dynamics in M1 are similar to their counterparts in somatosensory cortex, whose activity is driven primarily by afferent inputs rather than by intrinsic dynamics. (nih.gov)
  • Geometric populations grow in discrete reproductive periods between intervals of abstinence, as opposed to populations which grow without designated periods for reproduction. (wikipedia.org)
  • As a macro-sociologist, my primary interests are in the dynamics and evolution of moderately large scale systems (communities, organizations, classes, societies). (ucr.edu)
  • The distances between, and connections among social actors (people, families, communities, organizations, sub-populations) are obviously important in conditioning many forms of social action. (ucr.edu)
  • Population dynamics has traditionally been the dominant branch of mathematical biology, which has a history of more than 220 years, although over the last century the scope of mathematical biology has greatly expanded. (wikipedia.org)
  • Population biology. (scirp.org)
  • Events: CodNet: How Do Individual Traits and Sexual Networks Shape Population Dynamics? (santafe.edu)
  • CodNet: How Do Individual Traits and Sexual Networks Shape Population Dynamics? (santafe.edu)
  • Bacterial population dynamics in dairy waste during aerobic and anaerobic treatment and subsequent storage. (cdc.gov)
  • Extreme population declines resulted over winters where there was significant rain on snow. (sciencedaily.com)
  • In the Summer Townet (STN) Index (Figure 1), the most obvious population declines are in the early 1980's and the mid-2000's. (calsport.org)
  • The force of selection acting on age-specific reproduction declines monotonically from birth in a growing or stationary population. (researchgate.net)
  • That is, many systems models are not first-order, and can (and do) display complex dynamics. (ucr.edu)
  • In the models that are developed in this text, we begin to bring together the two traditions together, as they apply to macro-sociological dynamics. (ucr.edu)
  • These theories are expressed as non-linear differential equation models describing the internal dynamics of an agent. (ucr.edu)
  • Models of social dynamics, however, require flexible and multiple conceptions of 'space. (ucr.edu)
  • The "Student Worksheet" introduces students to the Click & Learn by having them analyze different components of the models, generate and interpret related plots, and investigate examples of population growth in bacteria and humans. (biointeractive.org)
  • Explain how the key variables and parameters in these models - such as time, the maximum per capita growth rate, the initial population size, and the carrying capacity - affect population growth. (biointeractive.org)
  • Lastly, we used state‐space time series models to investigate whether density affected population growth in each pond. (uzh.ch)
  • Using Bayesian state-space models to understand the population dynamics of the dominant malaria vector, Anopheles funestus in rural Tanzania. (bvsalud.org)
  • Such models mostly concern kinetics and include gene and protein interactions as well as cell population dynamics. (lu.se)
  • In essence, the study shows that bottom-up, herbivore-plant interactions fail to generate such population cycles. (sciencedaily.com)
  • 95% CIs assume a Poisson distribution);based on no. cases enrolled from each geography divided by the population estimates for each geography annualized to the duration of study period. (cdc.gov)
  • The study suggests that relationships between population dynamics and fishery resources are more complex than the concept of Malthusian overfishing implies. (cmi.no)
  • The field study showed that T. absoluta population progress is increasing during tomato phenologic cycle, the period of peak activities of T. absoluta compromise at vegetative time with flowering and early fruit setting stages of the crop. (omicsonline.org)
  • Levels and trends of fertility in Indonesia based on the 1971 and 1980 population censuses : a study of regional differentials. (who.int)
  • This study will monitor two populations on opposite vaccination schedules and compare their impact for SARS-CoV-2 transmission. (cdc.gov)
  • The results suggest the importance of predators as a primary factor driving the cycles, and shows that bottom-up, herbivore-plant interactions fail to generate their usual population cycles. (sciencedaily.com)
  • The results, published online in the journal PNAS (Proceedings of the National Academy of Sciences) by a team of Canadian and Norwegian scientists, suggest the importance of predators as a primary factor driving the regular, three-to-five-year cycles of abundance in small mammal populations. (sciencedaily.com)
  • However, little consideration has been given to its role in shaping or generating population cycles. (ruc.dk)
  • We found that fragmentation as well as the presence of specialist predators are necessary for the occurrence of population cycles. (ruc.dk)
  • The Fall Midwater Trawl (FMWT) Index (Figure 2) highlights several key periods of population change: 80-83, 88-91, 00-05, and 09-13. (calsport.org)
  • This model can be applied to populations that are limited by food, space, competition, and other density-dependent factors. (biointeractive.org)
  • While many studies have investigated the effects of density on population growth or on dispersal, few have simultaneously examined density‐dependent effects at the scale of both the local population and the entire SSP. (uzh.ch)
  • Students can set multiple model parameters, such as starting population size, time, and carrying capacity, and observe how population growth is affected by changing any of these variables. (biointeractive.org)
  • Rasmussen, G 1986, ' The population dynamics of brown trout (salmo trutta L.) in relation to year-class size ', Polskie Archiwum Hydrobiologii , vol. 33, no. 3/4, pp. 489-508. (dtu.dk)
  • citation needed] The mathematical formula below can used to model geometric populations. (wikipedia.org)
  • An increase in ammonia concentration (10 to 40 mg L(-1) for C. dubia and 20 to 120 mg L(-1) for M. macrocopa) resulted in a corresponding decrease in peak population densities of the tested cladocerans. (unboundmedicine.com)
  • The observed and simulated dynamics also suggests that An. (bvsalud.org)
  • citation needed] The beginning of population dynamics is widely regarded as the work of Malthus, formulated as the Malthusian growth model. (wikipedia.org)
  • In this work, we use isotope incorporation within DNA molecules to model taxon-specific population growth in the presence of 18 O-labeled water. (osti.gov)
  • This model can be applied to populations that are small and/or have no competition for resources. (biointeractive.org)
  • Here, we address this limitation by using a model-based approach that reconstructs the feature encoded by population activity measured with fMRI. (mit.edu)
  • The model accurately reconstructed the seasonal population dynamics of An. (bvsalud.org)
  • In many ways, this is like theorizing principles of the dynamics of physical interaction assuming 'a perfect vacuum' and 'frictionless surfaces. (ucr.edu)
  • This paper reconsiders the impact of supply-side dynamics on inequality, in the context of a literature that has favored demand-side explanations for at least 30 years, and a recent movement toward equality that coincides with the retirement of the baby boom generation, reduced immigration, and a long trend toward reduced fertility. (marginalrevolution.com)
  • Focuses on maximizing the power of data for population and health research in Africa through the creation of platforms for Africa-led data sharing, data custody, and application of state-of-the-art big data analytics and artificial intelligence to foster advances in health and wellbeing in Africa. (aphrc.org)
  • Ngorongoro black rhino population dynamics: what does the data tell us? (rhinoresourcecenter.com)
  • The data show that for last 5 years natural increase of population has been growing from 8 to 11.7. (who.int)