Drift seeds (also sea beans) and drift fruits are seeds and fruits adapted for long-distance dispersal by water. Most are produced by tropical trees, and they can be found on distant beaches after drifting thousands of miles through ocean currents. This method of propagation has helped many species of plant such as the coconut colonize and establish themselves on previously barren islands. Consequently, drift seeds and fruits are of interest to scientists who study these currents. In botanical terminology, a drift fruit is a kind of diaspore, and drift seeds and fruits are disseminules.
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| - ثمرة منجرفة (ar)
- Drift seed (en)
- Haricot de la mer (fr)
- Drijfzaad (nl)
- Castanha-do-mar (pt)
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| - الثمرة المنجرفة (بالإنجليزية: Drift seed) هي ثمرة نباتية تكيفت للانتقال لمسافات طويلة عن طريق الماء لنشر بذورها في مكان بعيد. الثمار المنجرفة هي من أهم وسائل انتشار البذور لدى الأشجار الاستوائية ونباتات البيئات المائية. يمكن العثور عليها على الشواطئ البعيدة بعد أن جرفتها المياه لمسافة آلاف الأميال عن طريق تيارات المحيطات. هي من الظواهر التي تهم العلماء حيث يمكن دراسة التيارات واتجاهاتها من خلال الثمار المنجرفة معها. (ar)
- Drift seeds (also sea beans) and drift fruits are seeds and fruits adapted for long-distance dispersal by water. Most are produced by tropical trees, and they can be found on distant beaches after drifting thousands of miles through ocean currents. This method of propagation has helped many species of plant such as the coconut colonize and establish themselves on previously barren islands. Consequently, drift seeds and fruits are of interest to scientists who study these currents. In botanical terminology, a drift fruit is a kind of diaspore, and drift seeds and fruits are disseminules. (en)
- Un haricot de la mer est un type de graines ou de fruits dérivant sur la mer et rejetés sur les rivages. On a par exemple retrouvé une noix de coco sur une laisse de mer au Mont Saint-Michel en 2003. (fr)
- Een drijfzaad is een zaad dat op water drijft en op deze manier via rivieren of oceanen verspreid wordt. Sommige zaden kunnen hierbij een afstand van duizenden kilometers afleggen. De zaden hebben een lage dichtheid en zijn erop aangepast dat ze lange perioden van vochtigheid kunnen doorstaan. Ze komen meestal voor bij tropische plantensoorten. Af en toe spoelen drijfzaden ook in België of in Nederland aan. Sinds 1996 bestaat het International Sea-Bean Symposium waar mensen die deze zaden bestuderen en verzamelen bij elkaar komen. Voorbeelden van bomen die drijfzaden produceren: (nl)
- Castanha-do-mar, ou fava-do-mar, designa o conjunto de sementes, ou dissemínulos contendo sementes, de tipologia e proveniência diversas, que são encontrados a flutuar no mar ou que são arrojadas às costas pela acção das correntes oceânicas e das ondas. Estes dissemínulos são sementes e frutos adaptados à dispersão biológica a longa distância através da água, o que lhes permite percorrer por vezes milhares de quilómetros antes de serem arrojadas para as costas ou se afundarem. A maioria é produzida por árvores e lianas tropicais sendo frequentemente encontradas em costas distantes depois de terem derivado ao sabor das correntes oceânicas. (pt)
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| - Nickernuts in fruit capsule (en)
- Seaheart seeds (en)
- Puzzle fruit found washed up on a beach at Mnazi Bay, December 2006 (en)
- Box fruit found washed up on a beach at Mnazi Bay, Tanzania, December 2006 (en)
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| - Drift seeds and drift fruits (en)
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| - Box Fruit small.jpg (en)
- Cayos_pict089.jpg (en)
- Entada gigas1.jpg (en)
- Puzzle Fruit 4.jpg (en)
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| - الثمرة المنجرفة (بالإنجليزية: Drift seed) هي ثمرة نباتية تكيفت للانتقال لمسافات طويلة عن طريق الماء لنشر بذورها في مكان بعيد. الثمار المنجرفة هي من أهم وسائل انتشار البذور لدى الأشجار الاستوائية ونباتات البيئات المائية. يمكن العثور عليها على الشواطئ البعيدة بعد أن جرفتها المياه لمسافة آلاف الأميال عن طريق تيارات المحيطات. هي من الظواهر التي تهم العلماء حيث يمكن دراسة التيارات واتجاهاتها من خلال الثمار المنجرفة معها. (ar)
- Drift seeds (also sea beans) and drift fruits are seeds and fruits adapted for long-distance dispersal by water. Most are produced by tropical trees, and they can be found on distant beaches after drifting thousands of miles through ocean currents. This method of propagation has helped many species of plant such as the coconut colonize and establish themselves on previously barren islands. Consequently, drift seeds and fruits are of interest to scientists who study these currents. In botanical terminology, a drift fruit is a kind of diaspore, and drift seeds and fruits are disseminules. (en)
- Un haricot de la mer est un type de graines ou de fruits dérivant sur la mer et rejetés sur les rivages. On a par exemple retrouvé une noix de coco sur une laisse de mer au Mont Saint-Michel en 2003. (fr)
- Een drijfzaad is een zaad dat op water drijft en op deze manier via rivieren of oceanen verspreid wordt. Sommige zaden kunnen hierbij een afstand van duizenden kilometers afleggen. De zaden hebben een lage dichtheid en zijn erop aangepast dat ze lange perioden van vochtigheid kunnen doorstaan. Ze komen meestal voor bij tropische plantensoorten. Af en toe spoelen drijfzaden ook in België of in Nederland aan. Sinds 1996 bestaat het International Sea-Bean Symposium waar mensen die deze zaden bestuderen en verzamelen bij elkaar komen. Voorbeelden van bomen die drijfzaden produceren:
* Coco de mer (Lodoicea maldivica)
* (Erythrina variegata)
* Kokospalm (Cocos nucifera)
* Krappa (Carapa guianensis)
* of Afrikaans droomkruid (Entada rheedii)
* Zeehart (Entada gigas)
*
*
*
* Erythrina fusca
*
*
* Manicaria saccifera
*
* Ormosia
* Pandanus
* (nl)
- Castanha-do-mar, ou fava-do-mar, designa o conjunto de sementes, ou dissemínulos contendo sementes, de tipologia e proveniência diversas, que são encontrados a flutuar no mar ou que são arrojadas às costas pela acção das correntes oceânicas e das ondas. Estes dissemínulos são sementes e frutos adaptados à dispersão biológica a longa distância através da água, o que lhes permite percorrer por vezes milhares de quilómetros antes de serem arrojadas para as costas ou se afundarem. A maioria é produzida por árvores e lianas tropicais sendo frequentemente encontradas em costas distantes depois de terem derivado ao sabor das correntes oceânicas. Em termos botânicos, as favas-do-mar são diásporos que evoluíram para dissemínulos adaptados à hidrocoria a longas distâncias em ambiente oceânico. Por serem transportados a longas distâncias nos oceanos, a distribuição destes dissemínulos tem interesse para o estudo da circulação dos oceanos. Entusiastas do estudo e do coleccionismo das favas-do-mar fundaram uma convenção anual em 1996, designada International Sea-bean Symposium, dedicada à exibição, estudo e disseminação de informações sobre sementes flutuantes e outros materiais arrojados pelo mar. (pt)
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