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Table 1 Physical properties of seeds from dryland species, and their estimated terminal velocities in water

From: Secondary dispersal driven by overland flow in drylands: Review and mechanistic model development

Seed type Mass (mg) Dimensions (mm by mm) Density (kg m-3) Terminal velocity in water (ms-1)
Prosopsis flexuosa 241 6.0–6.6 × 1.9–2.22 906 8 (upwards)
Larrea sp. 2.31 6.0 mm spheroids3 10.6 77 (upwards)
Atriplex lampa 0.621 6-12 × 5 – 124 1.38 140 (upwards)
Trichloris crinita 0.181 4 × 0.55 180 28 (upwards)
Sporobolus cryptandrus 0.076 0.68 × 0.406 643 0.4 (upwards)
Chenopodium papulosum 0.256 0.94 × 0.826 396 1.2 (upwards)
Pappophorum spp. a 0.356 1.32 × 0.476 1200 0.76 (downwards)
Digitaria californica 0.406 1.67 × 0.986 250 4.5 (upwards)
Parthenium hysterophorus 0.426 2.45 × 1.186 123 11 (upwards)
Phacelia artemisioides 0.506 1.46 × 1.026 330 3.1 (upwards)
Setaria leucopila 0.756 1.18 × 1.046 588 1.2 (upwards)
Plantago patagonica 0.806 2.27 × 0.986 367 7.1 (upwards)
Pinus pinea 4437 Vol: 1067 mm3 7 415  
Erica multiflora 0.077 Vol: 0.16 mm3 7 438  
Average of 83 Spanish desert seeds 35.287 Vol: 67.91 mm3 7 520  
  1. Data sources in table: 1[55], 2[61], 3[62], 4[63], 5[64], 6[65], 7[52].