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Types of Selection

Types of Selection

Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...

Mate Choice

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Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.

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The z and the Student t distribution estimate the population mean using the sample mean and standard deviation. However, to decide which distribution to use for a calculation, one needs to determine the sample size, the nature of the distribution, and whether the population standard deviation is known. If the population standard deviation is known and the population is normally distributed, or if the sample size is greater than 30, the z distribution is preferred. The Student t distribution is...

Frequency-dependent Selection

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.Positive Frequency-Dependent SelectionIn positive...

Distribution and Dispersion

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Ecology is the study of how organisms interact with their environment and with one another. An important aspect of ecology is understanding where species are found and how individuals are distributed within those areas. The geographic range of a species refers to the total area where its members are located, while dispersion describes the pattern of spacing of individuals within that range.Geographic Range and Dispersion PatternsWithin a species’ geographic range, individuals may be distributed...

Communication

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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.

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Related Experiment Video

Updated: Jun 10, 2026

Applications for Open Source Microplate-Compatible Illumination Panels

Applications for Open Source Microplate-Compatible Illumination Panels

Published on: October 3, 2019

Choosing a publication venue.

Lynne P Lewallen¹, Patricia B Crane

¹School of Nursing, The University of North Carolina at Greensboro, Greensboro, NC 27402-6170, USA.

Journal of Professional Nursing : Official Journal of the American Association of Colleges of Nursing

|July 20, 2010

Summary

This summary is machine-generated.

Choosing a publication venue requires careful consideration of audience, topic, purpose, and journal guidelines. A visual checklist helps authors select the best journal for maximum article impact.

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Area of Science:

Scientific communication
Scholarly publishing

Background:

Manuscript publication venue selection is complex.
Multiple factors influence this decision.

Purpose of the Study:

To provide a framework for selecting an appropriate publication venue.
To assist authors in maximizing the impact of their research.

Main Methods:

Consideration of key factors: audience, topic, purpose, and journal guidelines.
Visual plotting of factor importance on a checklist.

Main Results:

A structured approach aids in identifying suitable journals.
Tailoring submission to venue enhances article reach and influence.

Conclusions:

Strategic venue selection is crucial for effective scholarly communication.
Utilizing a decision-making tool can optimize publication outcomes.