カノピー・オリエンテーション:アリにおける新しいタイプのオリエンテーション

B Hölldobler

Science (New York, N.Y.)

|October 3, 1980

まとめ

Paltothyreus tarsatusアリは,太陽のような天体信号ではなく,天蓋のパターンを用いて正確な帰り道を探しています. この指向戦略は,アフリカの熱帯雨林の薄暗い光の中で効果的です.

科学分野:

動物の行動動物の行動
昆虫のナビゲーション
センサリーエコロジーセンサリーエコロジー

背景:

アリは,しばしば,天の光や地標など,様々なシグナルに頼って航海します.
ナビゲーションメカニズムを理解することは,昆虫の生態学と行動を理解するために不可欠です.

研究の目的:

Paltothyreus tarsatus foragers.によって使用される主要な指向シグナルを調査するために.
アント・ホーミングにおける天体信号と環境特性の影響を決定する.

主な方法:

Paltothyreus tarsatus.とのフィールドと実験室での実験を実施しました.
操作された天体暗示 (太陽,偏光) と天蓋のパターンがホーミング行動に与える影響を評価した.

主要な成果:

天体信号は,P.tarsatus.の帰国指向に検出可能な影響を示さなかった.
カノピーのパターンは,このアリ種のホーム範囲の方向性に大きな影響を与えるものとして特定されました.

結論:

P.tarsatus foragersは,主に,特に熱帯雨林の低光条件下で,キャノピーのパターンをナビゲーションに使用します.
カノピーのパターンへの依存は,アフリカの森林の特殊な視覚環境への適応を示唆しています.

さらに関連する動画

05:46

Visual Classical Conditioning in Wood Ants

Published on: October 5, 2018

10:11

Collection and Long-Term Maintenance of Leaf-Cutting Ants (Atta) in Laboratory Conditions

Published on: August 30, 2022

関連する概念動画

02:40

Epiphytes, Parasites, and Carnivores

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 biosynthesis of the...

02:57

Attachment of Sister Chromatids

As cells progress into mitosis, the nuclear envelope breaks down, and the condensed chromosomes are exposed to the array of bipolar microtubules of the mitotic spindle. The kinetochore, a large, disc-shaped protein complex, is present at the centromere region of the sister chromatids and acts as a binding site for the microtubules. Usually, the plus-end of a single microtubule is embedded within the kinetochore. However, some kinetochores first establish lateral contact with the side-wall of a...

01:39

Mechanism of Filopodia Formation

Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...

01:21

Chemotaxis and Direction of Cell Migration

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 towards...

01:23

Surface Appendages of Archaea

Archaeal surface appendages are highly specialized structures essential for environmental adaptation, encompassing roles in adhesion, biofilm formation, and motility. Among these appendages, pili and archaella stand out for their distinct morphologies and functionalities, enabling archaea to thrive in diverse and often extreme environments.Pili: Adhesion and Biofilm FormationPili are filamentous structures assembled from pilin protein subunits, primarily contributing to adhesion and biofilm...

01:30

Oriented Surfaces

A surface is called orientable if a consistent choice of unit normal vector can be made at every point on the surface. A thin soap film stretched across a wire loop provides a familiar example. The film separates the air on one side from the air on the other, so one side can be selected as positive and the opposite side as negative. Once this choice is made, a unit normal vector can be assigned smoothly across the entire surface.At each point on the soap film, a unit normal vector points...

関連する実験動画