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Related Concept Videos

Types of Selection01:46

Types of Selection

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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...
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The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
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Selection, use, choice and occupancy: clarifying concepts in resource selection studies.

Subhash R Lele1, Evelyn H Merrill, Jonah Keim

  • 1Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, AB T6G 2G1, Canada.

The Journal of Animal Ecology
|February 7, 2014
PubMed
Summary
This summary is machine-generated.

This study clarifies confusing terminology in animal resource selection. It explains the statistical differences between concepts like probability of selection and occupancy, aiding wildlife management.

Keywords:
habitat suitabilityoccupancypresence‐only datastep selection functionstelemetryweighted distributions

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Area of Science:

  • Ecology
  • Wildlife Management
  • Statistical Modeling

Background:

  • Rapid advancements in statistical methods for animal resource selection have led to conceptual confusion.
  • Terms like 'selection,' 'choice,' 'use,' and 'occupancy' are often used interchangeably, leading to misunderstandings.

Purpose of the Study:

  • To clarify the concepts and terminology in animal resource selection studies.
  • To illustrate the statistical relationships among various resource selection concepts.
  • To provide statistical underpinnings for effective wildlife management.

Main Methods:

  • Conceptual clarification of resource selection terminology.
  • Statistical analysis of distinctions between probability of selection, use, choice, and occupancy.
  • Exploration of different statistical models for resource selection, including multimodel inference.

Main Results:

  • Identified widespread confusion regarding the precise meaning of terms like 'selection,' 'use,' and 'occupancy.'
  • Highlighted the difference between 'relative probability of selection' and 'probability of selection' and their management implications.
  • Demonstrated that practitioners often default to a single statistical model (exponential) when others may be more appropriate.

Conclusions:

  • Clearer conceptual understanding and precise terminology are crucial for accurate animal resource selection studies.
  • Distinguishing between different probabilities (selection, use, occupancy) is vital for effective wildlife management.
  • Adoption of multimodel inference in resource selection research is needed to improve model appropriateness and application.