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関連する概念動画

Migration00:53

Migration

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Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
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Cell Migration01:19

Cell Migration

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Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
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Cell Migration01:09

Cell Migration

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Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
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Cancer Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

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Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
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Chemotaxis and Direction of Cell Migration01:21

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Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
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Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
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Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
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鳥の移動を予測するための大陸システム

Benjamin M Van Doren1, Kyle G Horton2

  • 1Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. benjamin.vandoren@zoo.ox.ac.uk.

Science (New York, N.Y.)
|September 15, 2018
PubMed
まとめ
この要約は機械生成です。

毎年何十億もの鳥が 移住しますが 追跡するのは難しいのです 新しい大陸規模の予測システムは 23年間のデータを用いて 鳥の移住の強さを高い精度で予測し 保護活動を支援しています

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関連する実験動画

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Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
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科学分野:

  • 鳥類学
  • エコロジー
  • 大気科学

背景:

  • 季節的な動物移動は 生態学的に重要な出来事ですが 予測不可能な移動パターンのため 監視は困難です
  • 鳥の移動の強さを理解し予測することは 人間と野生生物の衝突を緩和するために不可欠です

研究 の 目的:

  • 大陸規模の鳥の移住予測システムを開発する.
  • 鳥の移動の強度に影響を与える主要な大気条件を特定する.
  • 鳥の移動を正確に予測する

主な方法:

  • 23年間の鳥の春の移動を 観察したものです
  • 大気条件と移住の強さを関連付けるモデルを開発した.
  • 1〜7日前にイベントの予測パフォーマンスを検証した.

主要な成果:

  • モデルでは,アメリカ全土 (0~3000m) の移動強度の81%までの変化が説明されています.
  • 1〜7日の予報では 移住の強度の変動の62%から76%が説明されています
  • 夜間の鳥の移動のピークは,おそらく米国で5億個を超えています.

結論:

  • 開発された鳥の移動予測システムは,かつてない大陸規模の予測能力を提供しています.
  • 鳥がインフラ (建物,飛行機,風力タービン) に衝突するのを大幅に減らすことができます.
  • このシステムは様々な監視活動と 鳥類の保全への市民の関与を強化します