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関連する概念動画

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.
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 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...
Habitat Fragmentation02:31

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
Optimal Foraging00:48

Optimal Foraging

How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
Threats to Biodiversity01:50

Threats to Biodiversity

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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Updated: Jun 11, 2026

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

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劣った保護区を代替することで,より良い保全成果が得られます.

Richard A Fuller1, Eve McDonald-Madden, Kerrie A Wilson

  • 1The Ecology Centre, University of Queensland, St Lucia, Queensland 4072, Australia. r.a.fuller@dunelm.org.uk

Nature
|July 2, 2010
PubMed
まとめ

非効率的な場所の置き換えによって保護区システムの改善は,生物多様性の保全を大幅に促進することができます. この戦略は,支出を増やすことなく,保護された植生類と土地面積を高め,費用対効果の高い保全ソリューションを提供します.

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Watershed Planning within a Quantitative Scenario Analysis Framework
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Watershed Planning within a Quantitative Scenario Analysis Framework

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関連する実験動画

Last Updated: Jun 11, 2026

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

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

Published on: February 11, 2020

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
11:53

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

Published on: December 9, 2012

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

科学分野:

  • 保護科学 保護科学 保護科学
  • 生物多様性管理とは,生物多様性の管理です.
  • 環境計画 環境計画

背景:

  • 保護区は生物多様性の保全に不可欠ですが,その有効性は大きく異なります.
  • 現在の保全戦略では,既存の保護区の最適化よりも,保護区の拡大を優先することが多い.
  • 多くの保護区システムの非効率性は,保全計画における公認の課題である.

研究 の 目的:

  • 既存の保護区を最適化することで,保全成果を根本的に改善できることを実証する.
  • 最も費用対効果が低い保護区のわずかな部分を置き換えることで,実質的な保全利益が得られることを示すために.
  • 効率と影響に焦点を当てた保護区システム拡大のための新しいパラダイムを提案する.

主な方法:

  • オーストラリアの厳格に保護された地域を分析し,最も費用対効果が低い地域を特定しました.
  • 保護区の最も費用対効果が低い1%の保護区の代替による影響のモデリング.
  • 植生種の保護と保護区の総面積の変化を評価する.

主要な成果:

  • 保護区のわずか1%を入れ替えるだけで,保護されている植生種の数は3倍に増える (18種から58種のうち54種に) 可能性があります.
  • この最適化により,保護された土地の総面積が大幅に増加します.
  • 改善は,全体的な保全支出の増加なしに達成できます.

結論:

  • 保護区システム内の資源の戦略的再配置は,保全のパフォーマンスを劇的に向上させることができます.
  • 既存の保護区の最適化は,生物多様性の保全を改善するための非常に費用対効果の高いアプローチです.
  • このパラダイムシフトは,土地利用競争が激化する中,保全効果を最大化するために不可欠です.