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Related Concept Videos

Variability: Analysis01:11

Variability: Analysis

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Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
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Background and Environment Affect Phenotype02:27

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Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
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Model Approaches for Pharmacokinetic Data: Physiological Models01:15

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Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...
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Gene-Environment Interactions01:20

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Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
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Environmental Influences on Intelligence01:29

Environmental Influences on Intelligence

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Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children...
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Positive and Negative Feedback Loops

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Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires  maintaining an internal dynamic equilibrium:
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Updated: Mar 20, 2026

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
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Incorporating environmental variability into physiological experiments: rationale and resources.

Emily A Hardison1, Emily Donham2, Melanie Massey3

  • 1Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA15260, USA.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|March 19, 2026
PubMed
Summary
This summary is machine-generated.

Environmental variability significantly impacts animal physiology and behavior. Research embracing real-world aquatic conditions offers new insights but presents challenges, requiring innovative methods for studying environmental effects.

Keywords:
aquaticdissolved oxygenocean acidificationsalinitytemperature

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Area of Science:

  • Comparative physiology
  • Environmental science
  • Animal behavior

Background:

  • Understanding environmental variability's role in animal physiology and behavior is crucial.
  • Recent research simulates real-world conditions, moving beyond static experimental designs.
  • This shift provides valuable insights into environmental physiology but poses logistical hurdles.

Purpose of the Study:

  • To review the occurrence of environmental variability in aquatic ecosystems.
  • To highlight studies demonstrating the benefits of incorporating variability in research.
  • To discuss challenges and technological advancements in studying environmental variability's effects.

Main Methods:

  • Literature review of exemplary studies on environmental variability.
  • Analysis of challenges in experimental manipulations of environmental conditions.
  • Summary of technological advances and practical considerations for researchers.

Main Results:

  • Environmental variability significantly influences organismal performance and behavior.
  • Simulating natural aquatic conditions enhances understanding of physiological responses.
  • Overcoming logistical challenges is key to advancing environmental physiology research.

Conclusions:

  • Embracing environmental variability is essential for a comprehensive understanding of animal physiology.
  • Technological advancements are making it more feasible to study environmental variability.
  • Researchers are encouraged to adopt innovative approaches to investigate environmental impacts on animals.