Germination responses to water potential in neotropical pioneers suggest large-seeded species take more risks

Annals of Botany

Volumn 102, Issue 6, 2008, Pages 945-951

  Daws, Matthew I ^a,b   Crabtree, Lora M ^a   Dalling, James W ^c   Mullins, Christopher E ^a   Burslem, David F R P ^a  

^a UNIVERSITY OF ABERDEEN   (United Kingdom)

^b ROYAL BOTANIC GARDENS   (United Kingdom)

^c UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN   (United States)

Author keywords

Germination; Neotropical; Panam ; Pioneer; Seed size; Water potential

Indexed keywords

WATER;

CANOPY; DICOTYLEDON; DROUGHT; GROWTH RATE; MORTALITY; SEED SIZE; SEEDLING;

ARTICLE; BIOMASS; GERMINATION; PHYSIOLOGY; PLANT SEED; RISK; TIME; TREE; TROPIC CLIMATE;

BIOMASS; GERMINATION; RISK; SEEDS; TIME FACTORS; TREES; TROPICAL CLIMATE; WATER;

CLIDEMIA; OCHROMA PYRAMIDALE;

EID: 56449125715     PISSN: 03057364     EISSN: 10958290     Source Type: Journal    
DOI: 10.1093/aob/mcn186     Document Type: Article

References (39)

1. Acuña PI, Garwood NC. 1987. Effect of light and scarification on the germination of five species of tropical secondary trees. Revista de Biologia Tropicale 35: 203-207.
2. Allen PS, Meyer SE, Khan MA. 2000. Hydrothermal time as a tool in comparative germination studies. In: Black M, Bradford KJ, Vazquez-Ramos J, eds. Seed biology: advances and applications. Wallingford: CAB International, 401-410.
3. APGII. 2003. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Botanical Journal of the Linnaean Society 141: 399-436.
4. Bond WJ, Honig M, Maze KE. 1999. Seed size and seedling emergence: an allometric relationship and some ecological implications. Oecologia 120: 132-136.
5. Bradford KJ. 1990. A water relations analysis of seed germination rates. Plant Physiology 94: 840-849.
6. Brokaw NVL. 1987. Gap-phase regeneration of three pioneer tree species in a tropical forest. Journal of Ecology 75: 9-19.
7. Buckley RC. 1982. Seed size and seedling establishment in tropical arid dunecrest plants. Biotropica 14: 314-315.
8. Choinski JS, Tuohy JM. 1991. Effect of water potential and temperature on the germination of four species of African savanna trees. Annals of Botany 68: 227-233.
9. Croat TB. 1978. Flora of Barro Colorado Island. Stanford, CA: Stanford University Press.
10. CTFS. 2004. Trees of the Panama Canal area. http://ctfs.si.edu/webatlas/maintreeatlas.html
11. Dahal P, Bradford KJ. 1990. Effects of priming and endosperm integrity on seed germination rates of tomato genotypes. II. Germination at reduced water potential. Journal of Experimental Botany 41: 1441-1453.
12. Dahal P, Bradford KJ, Haigh AM. 1993. The concept of hydrothermal time in seed germination and priming. In: Côme D, Corbineau F., eds. Basic and applied aspects of seed biology. Angers: Proceedings of the Fourth International Workshop on Seeds, 1009-1014.
13. Dalling JW, Winter K, Hubbell SP. 2004. Variation in growth responses of neotropical pioneers to simulated forest gaps. Functional Ecology 18: 725-736.
14. Daws MI, Burslem DFRP, Crabtree LM, Kirkman P, Mullins CE, Dalling JW. 2002. Differences in seed germination responses may promote coexistence of four sympatric Piper species. Functional Ecology 16: 258-267.
15. Daws MI, Orr D, Burslem DFRP, Mullins CE. 2006. Effect of high temperature on chalazal plug removal and germination in Apeiba tibourbou Aubl. Seed Science and Technology 34: 221-225.
16. Daws MI, Ballard C, Mullins CE, Garwood NC, Murray B, Pearson TRH, et al. 2007a. Allometric relationships between seed mass and seedling characteristics reveal trade-offs for neotropical gap-dependent species. Oecologia 154: 445-454.
17. Daws MI, Bolton S, Burslem DFRP, Garwood NC, Mullins CE. 2007b. Loss of desiccation tolerance during germination in neo-tropical pioneer seeds: implications for seed mortality and germination characteristics. Seed Science Research 17: 273-281.
18. Denslow JS, Ellison A, Sanford RE. 1998. Treefall gap size effects on above- and below-ground processes in a tropical wet forest. Journal of Ecology 86: 597-609.
19. Doussi MA, Thanos CA. 2002. Ecophysiology of seed germination in Mediterranean geophytes. 1. Muscari spp. Seed Science Research 12: 193-201.
20. Engelbrecht BMJ, Dalling JW, Pearson TRH, Wolf RL, Galvez DA, Koehler T, et al. 2006. Short dry spells in the wet season increase mortality of tropical pioneer seedlings. Oecologia 148: 258-269.
21. Evans CE, Etherington JR. 1990. The effect of soil water potential on seed germination of some British plants. New Phytologist 115: 539-548.
22. Gummerson RJ. 1986. The effect of constant temperatures and osmotic potentials on the germination of sugar beet. Journal of Experimental Botany 37: 729-741.
23. Jankowska-Blaszczuk M, Daws MI. 2007. Impact of red : far red ratios on germination of temperate forest herbs in relation to shade tolerance, seed mass and persistence in the soil. Functional Ecology 21: 1055-1062.
24. Kaufmann MR. 1969. Effects of water potential on germination of lettuce, sunflower, and citrus seeds. Canadian Journal of Botany 47: 1761-1764.
25. Kebreab E, Murdoch AJ. 1999. Modelling the effects of water stress and temperature on germination rate of Orobanche aegyptiacea seeds. Journal of Experimental Botany 50: 655-664.
26. Kikuzawa K, Koyama H. 1999. Scaling of soil water absorption by seeds: an experiment using seed analogues. Seed Science Research 9: 171-178.
27. Leishman MR, Westoby M. 1994. The role of seed mass in seedling establishment in dry soil conditions - experimental evidence from semi-arid species. Journal of Ecology 82: 249-258.
28. Marthews TR, Burslem DFRP, Paton SR, Yangüez F, Mullins CE. 2008. Soil drying in a tropical forest: three distinct environments controlled by gap size. Ecological Modelling 216: 369-384.
29. Michel BE, Kauffmann MR. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physiology 51: 914-916.
30. Milberg P, Andersson L, Thompson K. 2000. Large seeded species are less dependent on light for germination than small seeded ones. Seed Science Research 10: 99-104.
31. Pearson TRH, Burslem DFRP, Dalling JW, Mullins CE. 2002. Germination ecology of neotropical pioneers: interacting effects of environmental conditions and seed size. Ecology 83: 2798-2807.
32. Pearson TRH, Burslem DFRP, Goeriz RE, Dalling JW. 2003a. Regeneration niche partitioning in neotropical pioneers: effects of gap size, seasonal drought and herbivory on growth and survival. Oecologia 137: 456-465.
33. Pearson TRH, Burslem DFRP, Mullins CE, Dalling JW. 2003b. Functional significance of photoblastic germination in neotropical pioneer trees: a seed's eye view. Functional Ecology 17: 394-402.
34. Swaine MD, Whitmore TC. 1988. On the definition of ecological species groups in tropical rain forests. Vegetatio 75: 81-86.
35. Thompson K. 1987. Seeds and seed banks. New Phytologist 106 (Suppl. S): 23-34.
36. Thompson K, Band SR, Hodgson JG. 1993. Seed size and shape predict persistence in soil. Functional Ecology 7: 236-241.
37. Tompsett PB, Pritchard HW. 1998. The effect of chilling and moisture stress on the germination, desiccation tolerance and longevity of Aesculus hippocastanum L. seeds. Annals of Botany 82: 249-261.
38. Vázquez-Yanes C, Orozco-Segovia A. 1982. Seed germination of a tropical rain forest pioneer tree (Heliocarpus donnell-smithii) in response to diurnal fluctuations in temperature. Physiologia Plantarum 56: 295-298.
39. 2 enrichment at the top of a tropical forest. Oecologia 116: 18-25.