+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Seedling growth physiology and survivorship in a subalpine volcanic environment



Seedling growth physiology and survivorship in a subalpine volcanic environment



Ecology (Washington D C) 70(5): 1325-1334



The relationship of seedling survivorship to specific physiological or morphological traits is usually only inferred in demographic studies. We compared seedling survivorship, growth, morphology, and water relations of two subalpine herbs (Eriogonum pyrolifolium and Polygonum newberryi) on Mount St. Helens [USA] in order to examine the relationship between population and functional biology more directly. Survivorship of two cohorts of seedlings (1982 and 1983) was followed through 4 and 3 yr, respectively. Seedling growth was measured in two substrate types (pre-eruption soil and 1980 deposited tephra) and under different levels of nutrients and water under controlled environmental conditions. Water relations parameters of the two species were determined in conjunction with the laboratory growth experiment. The 1982 cohort of Eriogonum had a significantly higher rate of survival than did that of Polygonum over four growing seasons, while the 1983 cohort did not differ in survival over three growing seasons. Survival rates were closely related to the amount of rainfall, with Eriogonum having significantly higher survival during dry periods than Polygonum. Growth of both species was greater in pre-eruption soil than in 1980 deposited tephra; the difference was much more pronounced in Polygonum. Growth of Eriogonum seedlings was also less sensitive to lower nutrient and water availability in the laboratory experiment than growth of Polygonum. Eriogonum had lower osmotic potentials, higher stomatal conductance, greater fine root biomass, and lower intrinsic growth rate than did Polygonum. These appear to be important characteristics contributing to greater stress tolerance and higher seedling survivorship in Eriogonum.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 007775699

Download citation: RISBibTeXText

DOI: 10.2307/1938192


Related references

Light and temperature differentially colimit subalpine fir and Engelmann spruce seedling growth in partial-cut subalpine forests. Canadian journal of forest research 34(1): 249-260, 2004

Factors affecting seedling recruitment and survivorship of the Japanese subalpine stone pine, Pinus pumila, after seed dispersal by nutcrackers. Ecological Research y; 17(4): 481-491, 2002

Plant physiology and nursery environment: interactions affecting seedling growth. Forest nursery manual: production of bareroot seedlings edited by Mary L Duryea and Thomas D Landis: 141, 1984

Acorn removal seedling survivorship and seedling growth of quercus crispipilis in successional forests of the highlands of chiapas mexico. Bulletin of the Torrey Botanical Club 119(1): 6-18, 1992

Seedling emergence patterns and dormancy/germination physiology of Primula modesta in a subalpine region. Ecological Research 19(5): 541-551, 2004

Differences in seedling physiology and distribution as a basis for species coexistence in Engelmann spruce and subalpine fir. Bulletin of the Ecological Society of America 76(2 Suppl. Part 2): 5, 1995

Ecophysiological characteristics of seedling and sapling subalpine larch, Larix lyallii, in the winter environment. Berichte, Eidgenossische Anstalt fur das Forstliche Versuchswesen, Switzerland (270): 103-112, 1985

Seedling survivorship, growth, and response to disturbance in Belizean mangal. American Journal of Botany 80(10): 1137-1145, 1993

The seedling survivorship and growth of three shorea spp in a malaysian tropical rain forest. Journal of Tropical Ecology 6(4): 469-478, 1990

Among site differences in seedling size growth and survivorship in solidago flexicaulis. Canadian Journal of Botany 66(8): 1632-1638, 1988

Mangrove Seedling Net Photosynthesis, Growth, and Survivorship are Interactively Affected by Salinity and Light. Biotropica 38(5): 606-616, 2006

Tree Seedling Survivorship, Growth, and Allocation in the Cross Timbers Ecotone of Oklahoma, USA. Plant Ecology 205(2): 193-199, 2009

Effect of irrigation on tropical forest seedling growth and survivorship during an El Nino-related drought. Ecological Society of America Annual Meeting Abstracts 86: 261, 2001

Seedling growth of ten species from subalpine rangeland in Utah as affected by controlled diurnal temperature alternations. 1969

Spatial pattern of a pioneer tree seedling bank in old-growth European subalpine spruce forest. Ekologia Bratislava 24(3): 263-276, 2005