Bryophyte community structure in a boreal poor fen II: interspecific competition among five mosses
Bryophyte community structure in a boreal poor fen II: interspecific competition among five mosses
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DOI：
10.1139/b02-014
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发表时间：
2002-04
期刊：
影响因子：
1.1
通讯作者：
Roisín C. Mulligan;L. Gignac
中科院分区：
文献类型：
--
作者：
Roisín C. Mulligan;L. Gignac
A possible competitive hierarchy among five boreal bryophytes (Sphagnum angustifolium, Sphagnum fuscum, Sphagnum magellanicum, Ptilium crista-castrensis, and Pleurozium schreberi) was examined in a 2-year transplant experiment conducted in two habitats of a poor fen in northern Alberta, Canada, using a sixth moss (Aulacomnium palustre) as a phytometer. Change in relative growth rate in length and weight of A. palustre, measured as competitive effect, indicated the existence of a hierarchy in this peatland wherein the feather mosses are subordinates to the Sphagnum mosses. Relative competitive performance, which was calculated relative to the growth of the phytometer in monoculture, indicated that S. magellanicum exhibited the greatest competitive effect. Sphagnum magellanicum may be a strong competitor and partially inhibit S. fuscum from occupying its full fundamental niche. The competitive ability of S. fuscum and S. angustifolium in this peatland is low relative to that of the other study species. The ...
