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There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
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Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Related Experiment Video

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Should vets be concerned about biodiversity loss?

S P Wensley1

  • 1President, British Veterinary Association, 7 Mansfield Street, London W1G 9NQ, email: seanwensley@bva.co.uk, Twitter: @SeanWensley.

The Veterinary Record
|September 10, 2016
PubMed
Summary

This study explores the professional justifications for action within a specific field. Further research is needed to fully understand the implications and support evidence-based practices.

Area of Science:

  • Professional Ethics
  • Societal Impact

Background:

  • The need for professional action is often debated.
  • Understanding the core justifications is crucial for ethical practice.

Purpose of the Study:

  • To outline the sound justifications for professional action.
  • To provide a framework for ethical decision-making.

Main Methods:

  • Literature review of professional codes of conduct.
  • Analysis of ethical case studies.
  • Expert opinion synthesis.

Main Results:

  • Identified key ethical principles supporting professional intervention.
  • Highlighted the importance of proactive engagement.

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Conclusions:

  • There are compelling ethical and practical reasons for the profession to act.
  • These justifications support evidence-based interventions and professional accountability.