On the theory of explosively dispersed seeds

Author: qufp

August undefined, 2024

WebMethods are described for measuring the initial velocity, angular velocity, projection angle and air resistance coefficient of explosively dispersed seeds of Hura crepitans. The … Webtitle: on the theory of explosively dispersed seeds: a correction created date: 3/29/2004 1:31:32 pm

Dispersal mode, seed shadows, and colonization patterns

Web1 de mai. de 1977 · Methods are described for measuring the initial velocity, angular velocity, projection angle and air resistance coefficient of explosively dispersed seeds of Hura crepitans. The methods are ... Webcontrast, animal-dispersed seeds often end up at nutrient-rich sites and may or may not be transported relatively long distances in the pro-cess (Culver and Beattie, 1978; Beattie and Culver, 1982) and thus exemplify directed dis-persal. For explosively-dispersed plants, the act of dispersal does not depend on an external agent react images lazy loading

Micromachines Free Full-Text Silver Nanowires from Sonication ...

WebSeed shadows for wind-dispersed trees and shrubs had similar or steeper slopes than those for vertebrate-dispersed species in ... T. & Swaine, M. D. 1977. On the theory of explosively dispersed seeds. New Phytol. 78: 681–694. Google Scholar Bjorkbom, J. C. 1971. Production and germination of paper birch seed and its dispersal into a ... WebON THE THEORY OF EXPLOSIVELY DISPERSED SEEDS BY TOM BEER and M.D. SWAINE Department of Physics and Department of Botany, University of Ghana … WebSeeds are sometimes partly imbedded in firm ground. Some seeds are buried in soft soil at a considerable angle to the vertical. The dispersal distance of an explosively dispersed seed is defined as the horizontal distance between this seed and the nearest edge of the crown. The positions of seeds dispersed beyond 50 m were determined at a tree ... how to start master trials botw

Dispersal mode, seed shadows, and colonization patterns

(PDF) Theory of explosively dispersed seeds - ResearchGate

WebWe calculate the theoretical distribution of seed numbers (a probability density function) that would be expected on the ground around a parent plant that disperses its seeds explosively. The initial velocity of the projected seed, and its air resistance are shown to … WebSeed shadows for herbaceous species with devices for wind have flatter slopes and more distant modes and maxima than those of ballists, which in turn exceed those with no special devices. Seed shadows for winddispersed trees and shrubs had similar or steeper slopes than those for vertebrate-dispersed species in this sample. how to start matlab codeWeb5 de jul. de 2011 · It is often assumed that there is a trade-off between maternal provisioning and dispersal capacity, leading small-seeded species to disperse further than large-seeded species. However, t... Seed dispersal distance is more strongly correlated with plant height than with seed mass - Thomson - 2011 - Journal of Ecology - Wiley Online Library how to start marigold seeds

"Web4 de jan. de 2024 · At last, the AgNWs were re-dispersed in deionized water. 2.2.2. Sonication-Induced Scission of Silver Nanowires. For ultrasonication treatments, An AgNW aqueous solution was diluted to 0.0084–1.67 mg·mL −1 and sequentially underwent ultrasonication for 1–6 h at a power of 0–480 W. " - On the theory of explosively dispersed seeds

On the theory of explosively dispersed seeds

(PDF) Theory of explosively dispersed seeds - ResearchGate

WebSwaine, M.D.; Dakubu, T.; Beer, T., 1979: On the theory of explosively dispersed seeds a correction WebExplosive seed dispersal in Hura 699 smaller diameter (15-20 mm), and relatively thick, was greyish-brown. Individual seed weights overlapped considerably between types, but the heaviest seeds were all amongst the first 'white' type and the lightest among the 'brown'.

Did you know?

Webexplosively dispersed species, and that clumping unrelated to dispersal distance will be higher in animal-dispersed species reﬂecting clumped seed deposition. Among wind-dispersed species, we expect dispersal distances to increase with decr easing seed size, decreasing terminal velocity, increasing tree height, WebThe horizontal component in still air tells you how far the seed could be dispersed under these conditions in nature, but most wind-dispersed species, including Asteraceae, don't release...

Web10 de jul. de 2009 · On the theory of explosively dispersed seeds: a correction. ... A seed flying like a bullet: ballistic seed dispersal in Chinese witch-hazel ( Hamamelis mollis …

WebFor any explosively dispersed seed found near a tree an optimum trajectory can be calculated, that is the trajectory with the lowest possible initial velocity necessary for the … WebThe scattering of seeds or fruits is known as dispersal. There are two reasons for seeds to be dispersed: To prevent overcrowding. Dispersal ensures that the young plants grow far apart from each other. This reduces competition between the young plants and/or with the parent plant for sunlight, water, nutrients and space.

Webtheir seeds, in a manner similar to some genera in the Euphorbieae (Forster 2007). These descriptions obscure the actual mechanism by which capsules of many Viola species open and how the seeds are subsequently dispersed. Other workers describe how seeds are released from the capsule, e.g., "explosively ejected", "ballistically dispersed", or

WebShareable Link. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. react images viewerWebNew Phytol. (1977) 78, 681-694. ON THE THEORY OF EXPLOSIVELY DISPERSED SEEDS BY TOM BEER and M.D. SWAINE Department of Physics and Department of … how to start mary kay businessWebSUMMARY We calculate the theoretical distribution of seed numbers (a probability density function) that would be expected on the ground around a parent plant that disperses its … how to start matrix treadmillWebON THE THEORY OF EXPLOSIVELY DISPERSED SEEDS (Q112797286) From Wikidata. Jump to navigation Jump to search. scientific article published on 02 May 2006. edit. … how to start massage spa businessWeb2 de jun. de 2016 · On the theory of explosively dispersed seeds. New Phytol. 1977; 78: 681-694. Crossref; Scopus (30) Google Scholar, Vaughn et al., 2011. Vaughn K.C. Bowling A.J. ... To test this hypothesis, we used the model dynamics of a single valve to obtain the ballistic trajectories of seeds explosively dispersed away from the parent plant. react images not showingWebFor velocities which seem likely in explosive seed dispersal (e.g. in Hura crepitans L. initial velocities range from 14 to 70 m s-1) the resistive force R of the air acting on the seed … how to start mavenWeb1 de mai. de 1977 · Theory of explosively dispersed seeds. May 1977; New Phytologist 78(3):681-694; ... that would be expected on the ground around a parent plant that … how to start mate desktop from terminal