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

Epiphytes, Parasites, and Carnivores02:40

Epiphytes, Parasites, and Carnivores

12.9K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
12.9K
Light Acquisition02:16

Light Acquisition

8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
C4 Pathway and CAM01:27

C4 Pathway and CAM

45.1K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
45.1K
Habitat Fragmentation02:31

Habitat Fragmentation

17.4K
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.
17.4K
Ecological Niches02:02

Ecological Niches

23.5K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.5K
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

6.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.4K

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

Integrating lineage-specific and universal genomic probes illuminates phylogenetic relationships and molecular evolution in Sauvagesieae (Ochnaceae).

Molecular phylogenetics and evolution·2026
Same author

Time-lapse digital cameras reveal contrasting environmental controls of leaf phenology in different caatinga physiognomies.

International journal of biometeorology·2026
Same author

Canopy structural diversity mediates the effect of climate on primary productivity in forests.

Nature communications·2026
Same author

Mineral Stabilization Slows Losses of Peatland Carbon Following Long-Term Drainage for Agriculture.

Global change biology·2026
Same author

Ploidy level predicts differences in minimum leaf conductance in quaking aspen, Populus tremuloides.

American journal of botany·2026
Same author

Individual Trees Respond to 40 Years of Climate Change Through Leaf Functional Trait Acclimation.

Global change biology·2026

関連する実験動画

Updated: May 24, 2025

PARbars: Cheap, Easy to Build Ceptometers for Continuous Measurement of Light Interception in Plant Canopies
08:32

PARbars: Cheap, Easy to Build Ceptometers for Continuous Measurement of Light Interception in Plant Canopies

Published on: May 9, 2019

9.4K

地球の熱帯雨林の機能的特徴の変動

Jesús Aguirre-Gutiérrez1,2, Sami W Rifai3, Xiongjie Deng4

  • 1Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK. jeaggu@gmail.com.

Nature
|March 5, 2025
PubMed
まとめ

熱帯雨林は大陸にまたがって 重要な機能的多様性を表しています 熱帯アメリカの森林は より豊かなものですが アフリカの森林は 樹木の特徴が より多様で 生態系の機能に 影響を及ぼしています

さらに関連する動画

A Method for Quantifying Foliage-Dwelling Arthropods
08:20

A Method for Quantifying Foliage-Dwelling Arthropods

Published on: October 20, 2019

5.7K
Transforming, Genome Editing and Phenotyping the Nitrogen-fixing Tropical Cannabaceae Tree Parasponia andersonii
12:22

Transforming, Genome Editing and Phenotyping the Nitrogen-fixing Tropical Cannabaceae Tree Parasponia andersonii

Published on: August 18, 2019

12.8K

関連する実験動画

Last Updated: May 24, 2025

PARbars: Cheap, Easy to Build Ceptometers for Continuous Measurement of Light Interception in Plant Canopies
08:32

PARbars: Cheap, Easy to Build Ceptometers for Continuous Measurement of Light Interception in Plant Canopies

Published on: May 9, 2019

9.4K
A Method for Quantifying Foliage-Dwelling Arthropods
08:20

A Method for Quantifying Foliage-Dwelling Arthropods

Published on: October 20, 2019

5.7K
Transforming, Genome Editing and Phenotyping the Nitrogen-fixing Tropical Cannabaceae Tree Parasponia andersonii
12:22

Transforming, Genome Editing and Phenotyping the Nitrogen-fixing Tropical Cannabaceae Tree Parasponia andersonii

Published on: August 18, 2019

12.8K

科学分野:

  • エコロジー
  • バイオジオグラフィ
  • リモートセンシング

背景:

  • 熱帯雨林の天井は 炭素,水,エネルギー循環の 重要なインターフェースです
  • 現在の地球システムモデルは,熱帯雨林を過度に単純化し,その機能的異質性を表現していない.
  • 熱帯林冠の機能的性質の地理的変動は十分に理解されていません.

研究 の 目的:

  • 世界的に熱帯雨林の機能的多様性を予測し,マッピングする.
  • 熱帯地域における木の機能的特徴の地理的多様性を理解する.
  • 将来のデータ収集分野を特定し,世界の熱帯森林モデルを改善する.

主な方法:

  • 1,800以上の植生地や樹木の特徴を 衛星によるリモートセンシング,地形,気候,土壌データと組み合わせました
  • 樹木の13の形態的,構造的,化学的機能的特徴の予測された変化
  • 熱帯雨林の機能的な多様性を計算し,マッピングしました.

主要な成果:

  • 熱帯アメリカ,アフリカ,アジアの森林は 機能的な特徴の空間を 占めています
  • 熱帯アメリカの森林は アフリカやアジアの森林と比較して 40%の機能的豊かさを示しています
  • アフリカの森林は機能的な差異が最も多く,アメリカとアジアの森林をそれぞれ32%と7%上回っています.

結論:

  • 熱帯雨林の機能的特徴の地理的変動は大きく予測可能である.
  • 異なる機能特性の空間は,熱帯雨林の生態系における地域的な違いを強調しています.
  • この研究は,改良された地球システムモデルのパラメータ化のための基礎を提供し,将来の研究のための重要な分野を特定します.