New Insights on Atmospheric Fern Spore Dynamics

Cruz, David Rodríguez de la; Reyes, Estefanía Sánchez; Sánchez-Sánchez, José; Sánchez‐Agudo, José Ángel

doi:10.1007/978-3-319-75103-0_20

Current Advances in Fern Research 2018

DOI: 10.1007/978-3-319-75103-0_20

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New Insights on Atmospheric Fern Spore Dynamics

David Rodríguez de la Cruz

Estefanía Sánchez Reyes

José Sánchez-Sánchez

et al.

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2022

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Cited by 2 publications

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“…The dispersal capacity of fern spores is still under debate because they possess a high potential capacity, but field surveys have not provided evidence for their dispersal across larger distances (Conant, 1978; Rodríguez De la Cruz et al, 2018), although they must have occurred in the past to colonize remote oceanic islands (Kessler, 2010). Measurements of the terminal velocity may clarify whether spores with a lower Vt can be dispersed farther.…”

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confidence: 99%

Terminal velocity of fern and lycopod spores is affected more by mass and ornamentation than by size

Gómez‐Noguez

Domínguez‐Ugalde

Flores‐Galván

et al. 2022

American J of Botany

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Premise Terminal velocity (Vt) is an important factor for the dispersal of biological particles but has scarcely been studied for anemochorous fern spores, and the influence of spore characteristics on Vt has not been evaluated. Here, we measured the Vt of 1234 spores of 18 fern species and two Selaginella microspores using videoimaging analysis and evaluated the effects of mass, size, and ornamentation on Vt. Methods We designed a sedimentation tower with a graduated microtelescope attached to a high‐speed video camera to record falling particles and measure the Vt of fern spores using video‐image processing software. Spores were measured for each species and their size correlated with Vt. Results The Vt of fern spores ranged from 4.7 cm·s−1 (Cyathea costaricensis) to 18.85 cm·s−1 (Acrostichum danaeifolium). The method is accurate and reliable as predicted by Stokes model for glass beads of known density and size. In addition, Vt had a higher correlation coefficient with mass (ρ = 0.72) than size (ρ = 0.20), and ornamental appendages reduced Vt. Conclusions The reported values of Vt of fern spores are within the range of different biological airborne particles such as moss spores and pollen grains of seed plants. The results showed that spore ornamentation is directly related to Vt rather than spore size and may increase or decrease the drag. This method will aid future aerobiological research on biological particles.

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mentioning

confidence: 99%

Terminal velocity of fern and lycopod spores is affected more by mass and ornamentation than by size

Gómez‐Noguez

Domínguez‐Ugalde

Flores‐Galván

et al. 2022

American J of Botany

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Co-occurrence of airborne biological and anthropogenic pollutants in the central European urban ecosystem

Ščevková

Vašková

Dušička

et al. 2022

Environ Sci Pollut Res

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New Insights on Atmospheric Fern Spore Dynamics

Cited by 2 publications

References 79 publications

Terminal velocity of fern and lycopod spores is affected more by mass and ornamentation than by size

Terminal velocity of fern and lycopod spores is affected more by mass and ornamentation than by size

Co-occurrence of airborne biological and anthropogenic pollutants in the central European urban ecosystem

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