Colony Population Control
Colony Population Control - Related Videos
10:21
Population Replacement Strategies for Controlling Vector Populations and the Use of Wolbachia pipientis for Genetic Drive
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Cited by 12 •
2007
In this interview, Jason Rasgon explains the concept of genetic drive and the characteristics of an effective gene drive system. The use of the endosymbiotic bacterium, Wolbachia pipientis, as a means to spread genes through mosquito populations, is hypothesized.
14:47
Population Growth - Student Protocol
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2019
Exponential Population Growth Model ExpandNOTE: In these experiments you will use computer software to simulate different types of growth models. HYPOTHESES: The experimental hypothesis might be that if we increase either R, the reproductive rate or the initial population size, NT, that this will increase the population size after 10 generations in an exponential growth model compared to unmanipulated control populations. The null hypothesis may be that populations of different R and initial...
04:45
Population Growth - Concepts
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2019
Population Models An ecological population is a group of individuals of a single species living in an area at the same time. To persist, a population must either grow or maintain its size. Population ecology is the study of how population size and age distribution change over time through interactions with other species and the environment as well as with individuals of their own species. A particularly important feature that is studied by ecologists is the rate at which a population grows or...
06:44
Keratinocyte Colony Formation Assay: An In Vitro Assay to Assess the Ability of Keratinocytes to Grow into Colonies
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2023
In this video, we perform a clonogenic assay of keratinocytes harvested from adult mice to determine the ability of individual cells to proliferate and form colonies. This keratinocyte harvesting technique is useful for studying other downstream aspects of cutaneous chemical carcinogenesis and tumor promotion.
14:39
A Quantitative Assay for Insulin-expressing Colony-forming Progenitors
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Cited by 11 •
2011
A three-dimensional clonogenic assay that allows pancreatic-like progenitors to differentiate into insulin-expressing colonies is described. This method takes advantage of semi-solid media containing methylcellulose, Matrigel and growth factors, in which single progenitors proliferate and differentiate in vitro, permitting quantification of the number of functional progenitors in a population.
FAQs
Effective colony population control combines population monitoring with coordinated reproduction or growth management, space and resource planning, and predefined selection or removal when limits are reached. These measures influence both how many organisms remain and how evenly groups are maintained. The result is a healthier, more manageable colony with less competition and reduced risk of disease transmission.
Maintaining an appropriate genetic background helps keep biological groups consistent across experiments. When colony management preserves that background, researchers can compare study groups with less variability arising from uncontrolled population composition. This supports more reliable data and makes it easier to organize animals or other biological materials into scientifically useful cohorts.
Space and resource management help prevent overcrowding and excessive competition within a colony. If population size grows beyond what the available conditions can support, health, manageability, and consistency between experimental groups may decline. Coordinating population numbers with available space and resources therefore supports routine husbandry and reduces conditions that can promote disease transmission.
A practical workflow begins with monitoring population numbers and composition, followed by reviewing available space and resources. Researchers then coordinate reproduction or growth to support the intended population and synchronize appropriate cohorts. When established limits are reached, defined selection or removal procedures are applied, helping maintain manageable populations and consistent experimental groups.
The management target differs by biological system. In laboratory animal colonies, control can emphasize population numbers, reproduction, genetic background, and cohort organization. In microbial settings, the comparable concern is regulating growth while coordinating population size with space and resources. In both cases, monitoring and defined limits support manageable, scientifically useful populations.
This approach is useful when researchers need healthy, manageable populations, synchronized study cohorts, or consistent experimental groups. It also supports studies requiring an appropriate genetic background and reduces variability between groups. By coordinating colony conditions with research needs, population control helps maintain reliable data while using biological resources responsibly.