Related Experiment Video
Updated: Jan 25, 2026
08:51
Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations
Published on: May 5, 2021
5.6K
Cultural bistability and connectedness in a subdivided population
1Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, Nakano 4-21-1, Nakano-ku, Tokyo 164-8525, Japan.
Theoretical Population Biology
|April 27, 2019
Summary
Cultural evolution in hunter-gatherers shows shifts in skill acquisition. Intermediate migration rates maximize concerted shifts, while higher rates increase their duration.
Area of Science:
- Evolutionary Anthropology
- Archaeology
- Computational Social Science
Background:
- Hunter-gatherer populations exhibit complex cultural evolution.
- Skills acquired through social or individual learning impact population dynamics.
- Niche construction alters environmental carrying capacity.
Purpose of the Study:
- To model cultural evolution in subdivided hunter-gatherer populations.
- To investigate the impact of migration rates on skill adoption and population size shifts.
- To interpret archaeological evidence using theoretical predictions.
Main Methods:
- Stochastic modeling of cultural evolution.
- Simulation of demes with variable sizes and skill acquisition.
- Analysis of migration rates and their effect on concerted shifts.
Main Results:
- Concerted shifts to large-deme/many-skilled states are maximized at intermediate migration rates.
- The duration of these shifts increases monotonically with migration rate.
- Model predictions align with the temporal and spatial patterns of the Still Bay and Howiesons Poort industries.
Conclusions:
- Migration rates critically influence the frequency and duration of cultural shifts in hunter-gatherer societies.
- The study provides a framework for understanding the dynamics of skill spread and population changes.
- Theoretical insights offer explanations for observed patterns in Paleolithic archaeological records.
More Related Videos
Related Concept Videos
02:04Conservation of Small Populations
16.7K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.7K
01:25What is Population Genetics?
64.5K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.5K
00:57Population Growth
28.1K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.1K
00:30What are Populations and Communities?
37.4K
Overview
37.4K
02:07Conservation of Declining Populations
12.8K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
12.8K
01:11Testing a Claim about Mean: Known Population SD
3.2K
A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
3.2K