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Related Concept Videos

What is Conservation Biology?01:57

What is Conservation Biology?

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.
Conservation of Declining Populations02:07

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.The collection of fossils within sedimentary rocks give a record of common ancestry and often depicts the history of evolution.
Conservation of Small Populations02:04

Conservation of Small Populations

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 likely to...
Limits to Natural Selection01:38

Limits to Natural Selection

Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...
Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.The structures that arise from convergent evolution are called analogous structures. They are similar in function even if they are dissimilar in structure. Further, structures can be analogous while also...

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Related Experiment Video

Updated: Jul 13, 2026

At-Risk Butterfly Captive Propagation Programs to Enhance Life History Knowledge and Effective Ex Situ Conservation Techniques
07:10

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Published on: February 11, 2020

Evolutionary biology and practical conservation: bridging a widening gap.

Georgina M Mace1, Andy Purvis

  • 1NERC Centre for Population Biology, Division of Biology, Imperial College, Silwood Park, Ascot, Berkshire SL5 7PY, UK. g.mace@imperial.ac.uk

Molecular Ecology
|August 19, 2007
PubMed
Summary

Biodiversity loss, including habitat and population decline, is accelerating globally at approximately 1% annually. Integrating evolutionary and ecological processes into conservation policy is crucial for long-term species persistence.

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Area of Science:

  • Conservation Biology
  • Ecology
  • Evolutionary Biology

Background:

  • Current rates of population and habitat loss average 1% annually and are projected to increase.
  • Habitat conversion persists globally, particularly in biodiversity hotspots, exacerbating species loss.
  • Emerging threats like climate change present novel challenges to ecosystems and species survival.

Purpose of the Study:

  • To highlight the critical need for integrating evolutionary and ecological processes into conservation strategies.
  • To address the current policy and practice gap that often overlooks these vital processes.
  • To recommend adjustments for effective conservation planning and implementation.

Main Methods:

  • Analysis of available measures on population and habitat loss rates.
  • Assessment of ongoing habitat conversion and emerging threats.
  • Review of current conservation policy and practice frameworks.

Main Results:

  • Significant rates of ecosystem, species, and population loss are occurring globally.
  • Evolutionary processes are essential for long-term species persistence but are often neglected in conservation.
  • Policy and practice frequently focus on pattern-based analyses, overlooking crucial ecological and evolutionary dynamics.

Conclusions:

  • Maintaining evolutionary processes is critical for the long-term persistence of natural populations.
  • Conservation planning requires context-specific strategies that incorporate ecological and evolutionary considerations.
  • Improved integration between scientists and policymakers is recommended for effective conservation outcomes.