Mar 22, 2006 · Environmental variability and the initiation of dispersal: turbulence strongly increases seed release Olav Skarpaas , 1, * † Richard Auhl , 2 and Katriona Shea 1 1 Department of Biology and IGDP in Ecology, The Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Environmental variability and the initiation of dispersal: turbulence strongly increases seed release Olav Skarpaas , Richard Auhl , Katriona Shea Published 22 March 2006 .
Download Citation on ResearchGate | Environmental variability and the initiation of dispersal: Turbulence strongly increases seed release | Dispersal is a critical process in ecology. It is an
Dispersal is a critical process in ecology. It is an important biological driver of, for example, invasions, metapopulation dynamics, spatial pattern formation and pathogen movement. Much is known about the effect of environmental variability, including turbulence, on dispersal of diaspores.
Sep 07, 2009 · For heavy-seeded herbs, dispersal increased at shorter distances (e.g. dispersal over 10 m increased by 3–17%), whereas at larger distances the outcome varied: for certain months, this dispersal type had the highest expected relative increases in LDD, but it also showed an expected decrease in August and generally high uncertainty around these expectations (figure 3).
Schurr FM, Steinitz O and Nathan R (2008) Plant fecundity and seed dispersal in spatially heterogeneous environments: models, mechanisms and estimation. Journal of Ecology 96: 628–641. Skarpaas O, Auhl R and Shea K (2006) Environmental variability and the initiation of …
Title: Environmental Variability and the Initiation of Dispersal: Turbulence Strongly Increases Seed Release Created Date: 20160811032502Z
Gustavo E. Pazos, David F. Greene, Gabriel Katul, Mónica B. Bertiller, Merel B. Soons and Eelke Jongejans, Seed dispersal by wind: towards a conceptual framework of seed abscission and its contribution to long‐distance dispersal, Journal of Ecology, 101, 4, (889-904), (2013).
Schippers & Jongejans proposed that the age of the seed head at a given dispersal event, because of its effect on seed release threshold, would have a significant impact on both average and maximum dispersal distance. In general, seed that has just ripened is strongly attached to the parent plant.
Both species reproduce via wind-dispersed seeds in the form of achenes with comas, but little is known about the extent of dispersal of these seeds. We studied the relationship of seed release height (0.75 m, 2 m), wind speed at the time of release, seed mass, and settling rate on distance traveled.
Brittany J. Teller, Rui Zhang, Katriona Shea and Bethany Bradley, Seed release in a changing climate: initiation of movement increases spread of an invasive species under simulated climate warming, Diversity and Distributions, 22, 6, (708-716), (2016).
Environmental variability and the initiation of dispersal: Turbulence strongly increases seed releas April 2006 · Proceedings of the Royal Society B: Biological Sciences Dispersal is a
Uncertainty in Ecological Inference and Forecasting 15 O. Skarpaas, R. Auhl, K. Shea, Environmental variability and the initiation of dispersal: turbulence strongly increases seed release, Proceedings of the Royal Society B: Biological Sciences, 2006, 273, 1587, 751CrossRef;
Environmental variability and the initiation of dispersal: turbulence strongly increases seed release. Proceedings of the Royal Society B 273: 751 – 756. CrossRef | PubMed | Web of Science® Times Cited: 36; Skarpaas, O. and K. Shea . 2007. Dispersal patterns, dispersal mechanisms and invasion wave speeds for invasive thistles.
Published in: Ecology · 2010Authors: Katherine M Marchetto · Matthew B Williams · Eelke Jongejans · Richard Auhl · Katrio…Affiliation: Pennsylvania State University · Radboud University NijmegenAbout: Vortex · Carduus nutans · Particle image velocimetry · Tourbillon · Seed dispersal · Di…