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Interspecific Variation in Sapling Mortality in Relation to Growth and Soil Moisture by John P. Caspersen; Richard K. Kobe is a Environmental Science article available to read on EtoBox.

What is Interspecific Variation in Sapling Mortality in Relation to Growth and Soil Moisture about?

To examine the causes of landscape variation in forest community composition, we have quantified sapling mortality as a function of growth and soil moisture for seven dominant species in transition oak‐northern hardwood forests of the northeastern USA. We located saplings in sites that encompassed a wide range of variation in soil moisture and light availability. In mesic conditions, the probability of mortality decays rapidly with increasing growth among shade tolerant species and more gradually among shade intolerant species: the rank order of survivorship at low growth rates is __Tsuga canadensis__>__Fagus grandifolia__>__Acer saccharum__>__Fraxinus americana__>__Acer rubrum__>__Quercus rubra__>__Pinus strobus__. The relationship between probability of mortality and growth does not vary with soil moisture among species insensitive to drought: __Tsuga canadensis__, __Quercus rubra,__ and __Pinus strobus__. However, probability of mortality increases substantially with decreasing soil water availability for the other four species. __Acer saccharum__ and __Fagus grandifolia__ have high mortality rates under xeric conditions even when their growth is not suppressed. __Acer rubrum__

Who reads Interspecific Variation in Sapling Mortality in Relation to Growth and Soil Moisture?

Author

John P. Caspersen; Richard K. Kobe

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; JSTOR (ISSN 0030-1299)

Published

2001

Language

EN

Field

Environmental Science (Physical Sciences)