Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

What is an Ecosystem?01:17

What is an Ecosystem?

46.8K
Overview
46.8K
The Soil Ecosystem02:23

The Soil Ecosystem

24.6K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
24.6K
Free-falling Bodies: Example01:05

Free-falling Bodies: Example

31.5K
An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
The...
31.5K
Free-falling Bodies: Introduction01:07

Free-falling Bodies: Introduction

11.6K
All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's gravity. This experimentally determined fact is unexpected because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavier ones. People believed that a heavier object had a greater acceleration when falling until Galileo Galilei (1564–1642) proved otherwise. We now know this is...
11.6K
NMR Spectroscopy: Chemical Shift Overview01:15

NMR Spectroscopy: Chemical Shift Overview

3.1K
The position of the absorption signal of a sample is reported relative to the position of the signal of tetramethylsilane (TMS), which is added as an internal reference while recording spectra. The difference between the absorption frequencies of the sample and TMS (in Hz) is divided by the spectrometer operating frequency (in MHz) to obtain a dimensionless quantity called the chemical shift. It is reported on the δ (delta) scale and expressed in parts per million.
For instance, the proton...
3.1K
Proton (¹H) NMR: Chemical Shift01:07

Proton (¹H) NMR: Chemical Shift

3.3K
Organic molecules primarily contain carbon and hydrogen atoms. While all the hydrogen isotopes are NMR-active, protium or hydrogen-1 is the most abundant. It has a significant energy separation between its nuclear spin states due to its large gyromagnetic ratio. As per Boltzmann's distribution, an increase in the energy separation implies a greater excess population of nuclei available for excitation, resulting in a strong NMR absorption signal.
Absorption signals of all the protium nuclei...
3.3K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Divergence From Temperate Models: Pollution Dominance and Stochastic Assembly in a Continental Freshwater System Under Compressed Modernity.

Global change biology·2026
Same author

A unified analysis of global riverine eDNA reveals common associations of fish biodiversity with drainage characteristics.

Nature ecology & evolution·2026
Same author

Biodiversity and habitat complexity buffer the destabilizing effects of anthropogenic activities on riverine fish communities.

Nature communications·2026
Same author

Local Resource Availability and Subsidy Flow Mediate the Effects of Disturbances in Meta-Ecosystems.

Ecology and evolution·2026
Same author

Integrated Reanalysis of Global Riverine Fish eDNA Datasets Shows Robustness and Congruence of Biodiversity Conclusions.

Molecular ecology·2026
Same author

Spatially-nested topologies stabilize meta-ecosystems via cross-scale source-sink dynamics.

Ecology·2026
Same journal

Hunting ecology predicts eye arrangements in the modular visual system of spiders.

Current biology : CB·2026
Same journal

Sub-second fluctuations between top-down and bottom-up modes distinguish diverse human brain states.

Current biology : CB·2026
Same journal

Queen bees offload pesticide burden to eggs when social buffering is overwhelmed.

Current biology : CB·2026
Same journal

Pitch selectivity in ferret auditory cortex.

Current biology : CB·2026
Same journal

A cell size-dependent competition between geometry and polarity governs nuclear and spindle positioning in early embryos.

Current biology : CB·2026
Same journal

Trophic cascades drive sustainability in the agricultural heritage rice-fish coculture system.

Current biology : CB·2026
関連記事をすべて見る

関連する実験動画

Updated: Jan 25, 2026

Relating Stomatal Conductance to Leaf Functional Traits
11:09

Relating Stomatal Conductance to Leaf Functional Traits

Published on: October 12, 2015

19.7K

気候変動は落葉期を変化させ、河川生態系と炭素循環に影響を与える。葉の種類が到着する順序が分解に影響を与えることを示す研究。

Luke E Ireland1, Tianna Peller2, Florian Altermatt1

  • 1Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland; Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.

Current biology : CB
|January 23, 2026
PubMed
まとめ
この要約は機械生成です。

気候変動は落葉期を変化させ、温帯河川生態系に影響を与える。高栄養葉の早期到着は低栄養葉の消費を促進し、炭素循環に影響を与える。

キーワード:
気候変動生態系機能落葉落葉優先効果資源補助シュレッダー陸水連成

さらに関連する動画

Author Spotlight: Leaf Trait Analysis for Climate and Ecology Reconstruction in Modern and Ancient Plant Communities
10:14

Author Spotlight: Leaf Trait Analysis for Climate and Ecology Reconstruction in Modern and Ancient Plant Communities

Published on: October 25, 2024

4.4K
Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
09:04

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Published on: August 29, 2019

14.1K

関連する実験動画

Last Updated: Jan 25, 2026

Relating Stomatal Conductance to Leaf Functional Traits
11:09

Relating Stomatal Conductance to Leaf Functional Traits

Published on: October 12, 2015

19.7K
Author Spotlight: Leaf Trait Analysis for Climate and Ecology Reconstruction in Modern and Ancient Plant Communities
10:14

Author Spotlight: Leaf Trait Analysis for Climate and Ecology Reconstruction in Modern and Ancient Plant Communities

Published on: October 25, 2024

4.4K
Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
09:04

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Published on: August 29, 2019

14.1K

科学分野:

  • 生態学
  • 環境科学
  • 生態系ダイナミクス

背景:

  • 落葉は温帯河川における重要な資源補助であり、季節的な投入が生態系機能に影響を与えます。
  • 気候変動は落葉期を変化させており、落葉のタイミングと順序の変化につながっています。
  • 変化した補助金の到着順序と期間が生態系プロセスに及ぼす影響は、依然としてよく理解されていません。

研究 の 目的:

  • 異なる落葉補助金の到着順序とエキスポージャー期間が生態系機能にどのように影響するかを調査すること。
  • 変化した落葉期が分解率と炭素循環に及ぼす影響を決定すること。

主な方法:

  • 高栄養と低栄養の対照的な2つの葉種の到着順序を操作するために、メソコスム実験が設計されました。
  • 分解率は、異なる補助金の順序と期間のシナリオの下で、豊富な水生シュレッダーによって測定されました。

主要な成果:

  • 落葉の種類のエキスポージャー期間と到着順序の両方が、落葉の組み合わせた消費に大きく影響しました。
  • 高質(高栄養)葉の早期到着は、低質(低栄養)葉に対するシュレッダーの摂食活動を強化しました。
  • 総資源量が不変であっても、落葉期と順序の変化は炭素循環に影響を与える可能性があります。
  • 落葉期と順序の変化は、総資源量が不変であっても、炭素循環に影響を与える可能性があります。

結論:

  • 気候変動による落葉期の変化は、炭素循環などの生態系プロセスに直接影響を与える可能性があります。
  • 落葉補助金の時間的側面(到着順序と期間を含む)は、生態系機能に対する気候変動の影響を理解するために重要です。
  • 生態系機能に対する気候変動の影響を予測するためには、時間的生態学的ダイナミクスをさらに研究に組み込むべきです。