Some simple examples of the four previous population types would be the following:
- Family population A pack of lions, composed first of all by the male and female who have numerous offspring, and which in many cases can be made up of several females and a dominant male. The human family could also be an example of this.
- Gregarious population. ...
What is the definition of population in science?
Population Definition. A population is the number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding. Population biology is the study of population characteristics and the factors that affect their size and distribution.
Which is an example of a population?
- The population of all workers working in the sugar factory.
- The population of motorcycles produced by a particular company.
- The population of mosquitoes in a town.
- The population of tax payers in India.
What does population vs sample mean?
Population is the whole group. A sample is a part of a population that is used to describe the characteristics (e.g. mean or standard deviation) of the whole population. The size of a sample can be less than 1%, or 10%, or 60% of the population, but it is never the whole population.
What is a population in an experiment?
Population: The entire group the researcher is studying. If the researcher cannot gather data from the population, studying large random samples taken from the population can be used to estimate how the population would respond. Power: The ability to observe differences or avoid making Type 2 errors.
What is the definition of population?
What scale do local populations occur?
Why are salmon born in different spawning sites?
What is it called when individuals of local populations are able to disperse between other local populations?
Why do populations fluctuate?
What is it called when a large number of individuals within a population are unable to survive?
How many people are in an elephant family?
See 4 more
About this website
What are three examples of a population?
In general, we define a population as a group of people inhabiting a territory. Example-American population, Indian population, Chinese population, the general population of a city, etc.
What is a population in science?
A population is defined as a group of individuals of the same species living and interbreeding within a given area. Members of a population often rely on the same resources, are subject to similar environmental constraints, and depend on the availability of other members to persist over time.
What is one example of a population in an ecosystem?
Populations are all the members of a species that live in a one area. You are part of the human population for your home town. A freshwater pond has multiple populations, including a population of mallard ducks, and a population of cattail plants growing on the edge.
What does population mean example?
The population mean is an average of a group characteristic. The group could be a person, item, or thing, like “all the people living in the United States” or “all dog owners in Georgia”. A characteristic is just an item of interest. For example: In a school of 1,013 students, the average GPA is 3.1.
What are the 4 types of population?
PopulationFinite Population.Infinite Population.Existent Population.Hypothetical Population.
What is an example of population growth?
The yearly increase in the northern YNP bison population between 1902 and 1915 can be described as exponential growth. A population that grows exponentially adds increasingly more individuals as the population size increases.
What is the population in a scientific experiment?
1What is Sampling? A research population is generally a large collection of individuals or objects that is the main focus of a scientific query. It is for the benefit of the population that researches are done.
Which group of organisms is an example of a population?
A population is a group of organisms belonging to the same species that live in the same area and interact with one another. An individual is a member of both a population and a species. For example, all of the black bears in one national park make up a population of black bears.
What are 3 examples of an ecosystem?
Examples of ecosystems are: agroecosystem, aquatic ecosystem, coral reef, desert, forest, human ecosystem, littoral zone, marine ecosystem, prairie, rainforest, savanna, steppe, taiga, tundra, urban ecosystem and others.
What are all the populations in an ecosystem called?
A community includes all the populations of the area. The community and the abiotic factors make up the ecosystem. An organism lives in its habitat within a community. The role or job of an organism within a community is its niche.
What is a population in an ecosystem quizlet?
population. a group of living things of the same species that live in the same area. You just studied 32 terms!
What is an example of a population in biology? - Answers
Formula for a biological population: [species] in [a location] Examples: Snakes in Arizona People in New York Ants in my house Cheetahs in Africa all the sugar maple trees in a state park ...
Population Definition & Meaning | Dictionary.com
Population definition, the total number of persons inhabiting a country, city, or any district or area. See more.
Population Definition - Discover The Biological Definition Of ... - BYJUS
Explore Population Definition. Learn the origins of the term, its etymology and implications only at BYJU’S
Why Policy?
Policy is an integral part of creating sustainable solutions. The Department of Population Science and Policy evaluates guidelines and laws on all levels - from standard operating procedures at schools and hospitals to local, state and national legislation - to inform and improve policies to effectively impact health.
What is population science?
Population Science is understanding why certain populations are healthier than others and then using that information to find solutions to make people as healthy as possible. Population Science examines factors that can impact health outcomes. These factors can include health care, individual health behaviors, a person’s environment, social and economic circumstances and policies. Collectively, these factors are known as the social determinants of health.
How do social determinants affect health?
The social determinants of health often affect health disparities, which are preventable differences in the burden of disease, injury, violence or opportunities to achieve optimal health.
What is the Department of Population Science and Policy?
The Department of Population Science and Policy also researches the impact of changes in health law and collaborates with internal and external partners to identify policy gaps that impact the health of our region. By designing interventions and informing and improving policies, the Department of Population Science and Policy provides innovative, sustainable solutions to improve health in communities. The Department’s ultimate goal is to provide opportunities for healthier, happier, more successful lives for the residents of central and southern Illinois.
What is population biology?
Population biology is a subset study within ecology that evaluates factors that affect populations. A population is defined as a group of the same species living in a similar geographical area. All life can be studied within this field, from mountain gorillas in Africa to passenger pigeons in North America.
What are the characteristics of a population?
The characteristics of a population would include migration in and out of areas, density of the population, and demography. Demography is the study of the decline or increase of populations. A species on the decline may be near extinction, like the polar bear. A species increasing rapidly could mean it's invasive, like a beetle eating crops or a weed that strangles out native plants. The ratio of birth to death rate determines if a species will rebound, be lost forever, or become invasive.
What are the research tools used to study populations?
The research tools used to study populations include observation, experimentation, and modeling of populations. Many factors are considered when judging the health of populations, such as demographic, migratory, abiotic, and biotic factors. To unlock this lesson you must be a Study.com Member. Create your account.
What happens if a population doesn't have access to abiotic factors?
If a population doesn't have access to abiotic factors, it could mean their demise. Every population is in a fight for access to these factors. This competition between species can mean the growth of one and the decline of another.
How does a population biologist evaluate a population?
When a population biologist begins to evaluate a population of species, they use many tools to help them gather information. Detailed notes are taken while observing the animals, and every component of the population are carefully measured. Conditions of the population and their habitat are imitated in laboratories to test hypotheses scientists may have. Mathematical formulas and models are constructed based on the experiments and observations and then used to make predictions. Basically, the researchers need to look at factors that affect the population. Let's look at some of the general factors they would consider.
Why are conditions of the population and their habitat imitated in laboratories?
Conditions of the population and their habitat are imitated in laboratories to test hypotheses scientists may have . Mathematical formulas and models are constructed based on the experiments and observations and then used to make predictions. Basically, the researchers need to look at factors that affect the population.
What does it mean when a species is on the decline?
A species on the decline may be near extinction , like the polar bear. A species increasing rapidly could mean it's invasive, like a beetle eating crops or a weed that strangles out native plants. The ratio of birth to death rate determines if a species will rebound, be lost forever, or become invasive.
What is population studies?from encyclopedia.com
Population studies is broadly defined as the scientific study of human populations. Major areas studied include broad population dynamics; fertility and family dynamics; health, aging, and mortality; and human capital and labor markets. Researchers in population studies also focus on methodology. Population studies is an interdisciplinary area of study; scholars from demography, epidemiology, sociology, economics, anthropology, and various other disciplines study populations. Various associations and centers exist throughout the United States and elsewhere. The Population Association of America, established in 1930, is a scientific, professional organization established to promote the improvement, advancement, and progress through research of problems related to human populations. Many university-based population studies centers are located throughout the United States, such as the University of Michigan ’ s Population Studies Center and the University of North Carolina at Chapel Hill ’ s Carolina Population Center.
What is the study of population dynamics?from encyclopedia.com
POPULATION DYNAMICS. Among population researchers, demographers are concerned with the empirical study of population dynamics; that is, demographers study population determinants and consequences including size, composition, how populations change over time, and the processes influencing those changes.
What are the three concepts that demographers use to understand population changes?from open.lib.umn.edu
To understand changes in the size and composition of population, demographers use several concepts, including fertility and birth rates, mortality and death rates, and migration.
What is the role of a demographer?from umass.edu
Demographers study the types of human population processes that play a key role in the fields of education, international development, environmental impact analysis, marketing, urban planning, healthcare, public safety, government, actuarial science, and academia. ( Find specifics on the career application of population studies.) Using empirical, evidence-based data, demographers shape government policy and contribute ideas to the betterment of society. The Department of Sociology’s Certificate in Population Studies prepares undergraduate students for careers requiring demographic skills or for entering graduate programs in related areas.
What is the term for the movement of people into and out of specific regions?from open.lib.umn.edu
Migration . Another demographic concept is migration , the movement of people into and out of specific regions. Since the dawn of human history, people have migrated in search of a better life, and many have been forced to migrate by ethnic conflict or the slave trade. Several classifications of migration exist.
What is overpopulation in ecology?from encyclopedia.com
Overpopulation occurs when the population of a living species exceeds the carrying capacity of its ecological niche. At the end of the eighteenth century, economist Thomas Malthus (1766 – 1834) concluded that, if unchecked, populations would be subject to exponential growth.
Why is the death rate higher in developed countries?from encyclopedia.com
This is because developed countries have relatively older people, who are more likely to die in a given year, so that the overall mortality rate can be higher even if the mortality rate at any given age is lower. A more complete picture of mortality and life expectancy is given by a life table that summarizes mortality separately at each age. A life table is a table that shows, for a given person at a given age, what the probability is that the person dies before his or her next birthday. Life tables are usually constructed separately for men and for women because of their different mortality rates. Other characteristics can also be used to distinguish different risks, such as health behaviors and socioeconomic position.
What are some examples of population?
An example of a population would be the entire student body at a school. It would contain all the students who study in that school at the time of data collection. Depending on the problem statement, data from each of these students is collected. An example is the students who speak Hindi among the students of a school.
What is Population?
In statistics, population is the entire set of items from which you draw data for a statistical study. It can be a group of individuals, a set of items, etc. It makes up the data pool for a study.
How to Collect Data From a Sample?
Samples are used when the population is large, scattered, or if it's hard to collect data on individual instances within it. You can then use a small sample of the population to make overall hypotheses.
How to overcome the restraints of a population?
To overcome the restraints of a population, you can sometimes collect data from a subset of your population and then consider it as the general norm. You collect the subset information from the groups who have taken part in the study, making the data reliable. The results obtained for different groups who took part in the study can be extrapolated to generalize for the population.
What is the process of collecting data from a small subsection of the population and then using it to generalize over the?
The process of collecting data from a small subsection of the population and then using it to generalize over the entire set is called Sampling.
Why should samples be randomly selected?
To ensure this, statistical methods such as probability sampling, are used to collect random samples from every class within the population. This will reduce sampling bias and increase validity.
Why is data important in statistics?
In statistics, data plays an essential role in deciding the validity of the outcome. The data being used must be relevant, correct, and representative of all classes. While more data is good to get impartial results, it is crucial to make sure that the data collected is suitable for the problem at hand.
What is the definition of population?
A population is the number of organisms of the same species that live in a particular geographic area at the same time, with the capability of interbreeding. For interbreeding to occur, individuals must be able to mate with any other member of a population and produce fertile offspring.
What scale do local populations occur?
Populations can occur on various different scales. A local population can be confined to a spatially small area, i.e., the fish in one pond. However, this locality can operate on a regional, countrywide, island or continental scale; it may even make up the entire species. If individuals of local populations are able to disperse between other local ...
Why are salmon born in different spawning sites?
Because most spawning sites are separated by land or deep water, each group of salmon that are born in a certain spawning site makes up the local population within that site; although the conditions within the routes available for dispersal to other sites are not impossible for the salmon to withstand, they are rarely found to move between sites.
What is it called when individuals of local populations are able to disperse between other local populations?
If individuals of local populations are able to disperse between other local populations, this is called a metapopulation. Population biology is the study of population characteristics and the factors that affect their size and distribution.
Why do populations fluctuate?
The fluctuations are usually in response to changes in the abiotic and biotic factors, which act as limiting factors against indefinite exponential growth of populations. For example, when food resources are plentiful and environmental conditions are favorable, populations may grow. Conversely, when predation is strong, populations may become depleted.
What is it called when a large number of individuals within a population are unable to survive?
This is called a population bottleneck. Bottleneck Effect.
How many people are in an elephant family?
Elephant group structure is formed of family units of around 10 individuals, although when elephant families come into contact, they may bond to form larger groups – called ‘herds’ – of up to 100. Each of these herds forms a local population.
Population Definition
Examples of Populations
- African Elephants
There are two traditionally recognized species of elephant, African elephants (Loxodonta Africana) and Asian Elephants (Elephas maximus), although recent research has divided the African elephants into two species: the African bush elephants (Loxodonta africana) and the Afri… - Pond Populations
Within a habitat there can be many different populations; a small-scale example is a lake. A lake may provide a habitat for birds, fish, insects, amphibians and mammals such as otters or rats. Although each species is provided with resources from the lake, their populations are likely to rel…
Related Biology Terms
- Community– A group consisting of various species, which interact with each other directly or passively, in a common location.
- Species– A group of physically similar individuals, which are capable of reproducing with the outcome of fertile offspring.
- Gene pool– The set of genes present within a population or species.
- Community– A group consisting of various species, which interact with each other directly or passively, in a common location.
- Species– A group of physically similar individuals, which are capable of reproducing with the outcome of fertile offspring.
- Gene pool– The set of genes present within a population or species.
- Speciation– The formation of new, distinct species.
Quiz
- 1. Which of the following scenarios best fits the definition of a population? A. Five species of frog living in a swamp. B. All of the sharks swimming off the west coast of Australia. C. All the individual mountain gorillas living in the dense forest of four national parks in Africa. D.The birds, bats and monkeys, which live in the rainforest of Ecuador. 2. A population bottleneck occurs wh…