Responses of secondary wind dispersal to environmental characteristics and diaspore morphology of seven <i>Calligonum</i> species

Zhou, Quanlai; Liu, Zhimin; Xin, Zhiming; Daryanto, Stefani; Wang, Yongcui; Li, Xuehua; Liang, Wenju; Qin, Xuanping; Zhao, Yiming; Li, Xinle; Cui, Xue; Liu, Minghu

doi:10.1002/ldr.3489

Cited by 11 publications

(17 citation statements)

References 40 publications

(53 reference statements)

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“…Since wind speed and direction are variable, it is difficult to collect data on diaspore dispersal by wind in the field 11 . Thus, wind tunnels make it possible to conduct controlled experiments on the effects of wind on diaspore dispersal 12 – 15 .…”

Section: Introductionmentioning

confidence: 99%

Plant canopy may promote seed dispersal by wind

Qin

Liang

Liu

et al. 2022

Sci Rep

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Seed dispersal has received much research attention. The plant canopy can intercept diaspores, but the effect of the plant canopy (the aboveground portion of a plant consisting of branches and leaves) on dispersal distance has not been explored empirically. To determine the effect of plant canopy on seed dispersal distance, a comparison of diaspores falling through open air and through plant canopy was made in a wind tunnel using three wind speeds and diaspores with various traits. Compared with diaspores falling through open air, the dispersal distance of diaspores falling through plant canopy was decreased or increased, depending on wind speed and diaspore traits. When falling through a plant canopy, dispersal distance of diaspores with thorns or those without appendages was promoted at low wind speed (2 m s−1), while that of diaspores with low wing loading (0.5 mg mm−2) and terminal velocity (2.5 m s−1) was promoted by relatively high (6 m s−1) wind speed. A plant canopy could increase seed dispersal distance, which may be due to the complicated updraft generated by canopy. The effect of maternal plants on seed dispersal regulates the distribution pattern and the species composition of the community.

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Section: Introductionmentioning

confidence: 99%

Plant canopy may promote seed dispersal by wind

Qin

Liang

Liu

et al. 2022

Sci Rep

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“…The terminal velocity was measured with an apparatus (a black lightproof box provides a calm space for the determination of the falling velocity) described by Zotz et al (2016). The constant falling velocity of a diaspore in still air was recorded by a camera (Zhou et al, 2020). The ranges of diaspores properties were: mass, 1.12-316 mg; shape index, 0.002-0.2; projected area, 5-604 mm 2 ; wing loading, 0.04-2.1 mg mm −2 and terminal velocity, 0.7-40 m s −1 (Table 2).…”

Section: Diaspore Selection and Trait Measurementsmentioning

confidence: 99%

Shrub canopy interception of diaspores dispersed by wind

Qin

Liu

et al. 2020

Seed Sci. Res.

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Interception by plant canopies during wind dispersal can affect the final destination of diaspores. However, how the interaction of wind speed, canopy type and diaspore attributes affects interception of diaspores by the plant canopy has rarely been studied. We investigated canopy interception for 29 species with different diaspore attributes, six canopy types and six wind speeds in controlled experiments in a wind tunnel. Shrub canopy interception of diaspores were controlled by wind speed and diaspore attributes, but the latter had a greater influence on canopy interception than the former. At low wind speed, diaspore wing loading had a large influence on canopy interception, whereas at high wind speed, diaspore projection area had a large influence. The chance of canopy interception at a particular wind speed was additionally affected by the type of canopy. This study increases our knowledge of the dispersal process, corrects the previous understanding of diaspore dispersal potential and improves the theoretical basis for predicting spatial pattern and dynamics of plant populations.

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“…1996, Zhou et al . 2020) and field experimentation in which seed traps are used to catch wind‐blown seeds (Dauer et al . 2007, Vitalos & Karrer 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Anemochory has been studied through conceptual predictive modelling (Andersen 1991, Jongejans & Schippers 1999, Katul et al 2005, quantified experimental simulation approaches (van Dorp et al 1996, Zhou et al 2020 and field experimentation in which seed traps are used to catch wind-blown seeds (Dauer et al 2007, Vitalos & Karrer 2009. Wind dispersal models developed from wind parameters and physical shape characters of the propagules are considered to be the most reliable approach to predict wind-assisted seed movement (Savage et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Wind dispersal of seeds of Parthenium hysterophorus L. (Asteraceae) contributes to its steady invasion and spread

et al. 2022

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Wind dispersal is considered to be a potentially important mode of spread for parthenium weed (Parthenium hysterophorus L.), an invasive Asteraceae herb of worldwide significance. However, empirical evidence of the role of wind dispersal on the seeds (achenes) of parthenium weed in natural landscapes is lacking. The results of a simulation study undertaken at a wind tunnel facility, Australia, indicated that the dispersal distance of parthenium weed achenes is largely determined by wind velocity (109-131% increase in distance where wind velocity is doubled) and plant release height (75-80% increase when release height is doubled). Glasshouse harvested achenes released from 1 m in height could travel up to 2 m under a 2 m s −1 wind velocity, with the majority of achenes reaching more than 1 m. Smaller-sized achenes travelled 5% further than larger-sized achenes. The terminal velocity was calculated to be 1.256 AE 0.006 m s −1 , indicating a moderate wind dispersal ability for the weed. A complementary field study in Southeast Queensland, Australia, indicated that the cumulative wind velocity and wind direction, instead of the mean wind velocity, determined the direction of dispersal of the achenes. Further post-dispersal surveys suggested the number of achenes outside of a standing population declined rapidly as distance from the population increased. Most achenes were dispersed less than 2 m from their parent plant, while the maximum distance achieved was less than 5 m under natural conditions in North Queensland. In conclusion, the natural wind dispersal of parthenium weed consists of small, but measurable increments each year, thus contributing to the weed proliferation and spread at the landscape scale level.

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Responses of secondary wind dispersal to environmental characteristics and diaspore morphology of seven Calligonum species

Cited by 11 publications

References 40 publications

Plant canopy may promote seed dispersal by wind

Plant canopy may promote seed dispersal by wind

Shrub canopy interception of diaspores dispersed by wind

Wind dispersal of seeds of Parthenium hysterophorus L. (Asteraceae) contributes to its steady invasion and spread

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