Abstract

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Highlights

  • The study of anomalies in natural populations of amphibians can be very informative about these populations and about exceptional aggressions, often of anthropic cause, suffered by ecosystems

  • Attention should be called to the presence and prevalence of anomalies in these natural populations

  • Observations made in the field can bring useful information but must be complemented by observations and experiments made in the laboratory

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Summary

Introduction

The study of anomalies in natural populations of amphibians can be very informative about these populations and about exceptional aggressions, often of anthropic cause, suffered by ecosystems. For this reason, attention should be called to the presence and prevalence of anomalies in these natural populations. Attention should be called to the presence and prevalence of anomalies in these natural populations Such studies cannot be done only in the field. Observations made in the field can bring useful information but must be complemented by observations and experiments made in the laboratory

The distinction soma-germen and its bearing on the study of anomalies
The sources of variation in natural populations
Main categories of anomalies
Anomalies as warning signals of environmental aggression or disruption
The search for the causes of anomalies
Phenotypic study
Breeding experiments
Experimental parthenogenesis and gynogenesis
Regeneration experiments
Study of development and growth
Survey of potential external factors
Findings
Laboratory equipment and facilities
Full Text
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