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Keystone Species01:39

Keystone Species

Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a pivotal role in the...
Ecological Disturbance02:26

Ecological Disturbance

An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.Ecological disturbances can be caused by an event as small as the trampling of underbrush to an incident as wide-ranging as a forest...
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In population modeling, integration provides a systematic way to determine accumulated quantities from known rates of change. One such application arises in ecology, where the total weight of a fish population in a body of water is referred to as its biomass. When the rate of growth of this biomass is known as a function of time, calculus can be used to determine the total biomass at a future date.Growth Rate and Biomass FunctionLet the growth rate of the fish population be represented by a...
Ecological Succession02:17

Ecological Succession

Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
Ecological Niche01:12

Ecological Niche

Microorganisms occupy diverse habitats and perform essential ecological functions that are defined by their ecological niches. A microbial niche encompasses the organism’s mode of survival, including resource acquisition, reproduction, and interactions with other species in its environment. This concept is vital for understanding microbial community dynamics, biogeography, and ecosystem functionality.The fundamental niche of a microorganism includes the full spectrum of environmental...

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Visualization of Productivity Zones Based on Nitrogen Mass Balance Model in Narragansett Bay, Rhode Island
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非線形的な生態学的機能と価値を持つ沿岸生態系ベースの管理.

Edward B Barbier1, Evamaria W Koch, Brian R Silliman

  • 1Department of Economics and Finance, University of Wyoming, Laramie, WY 82071, USA. ebarbier@uwyo.edu

Science (New York, N.Y.)
|January 19, 2008
PubMed
まとめ

波の衰弱のような沿岸の生態系サービスが,生息地の大きさと線形であることはめったにありません. これは,土地の最適な利用のために,保存対変換の厳格な選択ではなく,開発と保全を統合することを示唆しています.

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Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration
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Last Updated: Jul 8, 2026

Visualization of Productivity Zones Based on Nitrogen Mass Balance Model in Narragansett Bay, Rhode Island
05:04

Visualization of Productivity Zones Based on Nitrogen Mass Balance Model in Narragansett Bay, Rhode Island

Published on: July 14, 2023

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration
14:44

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

Published on: June 7, 2024

科学分野:

  • エコロジー エコロジー エコロジー
  • 沿岸部管理について
  • 環境科学 環境科学

背景:

  • 生態系サービスには,生息地の大きさに対する線形的な反応があり,保全の決定を簡素化することがしばしば想定されます.
  • この線形的な仮定は,沿岸生息地の完全な保存または完全な変換という二元的な選択につながる可能性があります.
  • このような二分論的な決定は,生態系サービス提供の複雑な現実を反映していないかもしれません.

研究 の 目的:

  • 生息地の大きさと生態系サービスの間の線形関係という仮定に異議を唱える.
  • 様々な沿岸の生息地における波減弱の非線形性を調査する.
  • 保護と開発を統合した土地利用戦略の代替案を提案する.

主な方法:

  • 多様な沿岸生態系 (マングローブ,塩沼,海草床,サンゴ礁,砂丘) にわたるフィールド研究からの波減弱データを調査した.
  • 沿岸保護のための経済的評価モデルに非線形波減弱データを組み込む.
  • タイのマングローブ生態系のケーススタディデータを活用した.

主要な成果:

  • 経験的なデータは,生息地の大きさと波の減弱の間の関係が,多くの沿岸生態系において,典型的には非線形であることを明らかにしています.
  • タイのマングローブの非線形波減弱を用いた沿岸保護価値の推定は,統合された土地利用アプローチの利点を示した.
  • この研究では,非線形性は,沿岸生息地の認識価値を大幅に変化させることを発見しました.

結論:

  • 生息地の大きさに対する生態系サービスの線形反応の仮定は,しばしば不正確である.
  • 非線形的な関係は,沿岸の生息地における"すべてまたは何もない"の保全対変換の決定から離れることを必要とします.
  • 開発と保全を統合した生態系ベースの管理アプローチは,沿岸部の土地利用のより微妙で潜在的に最適な戦略を提供します.