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The performance of progeny groups from two populations of Phyteuma nigrum , with particular reference to the chance of survival or extinction
Author(s) -
Van Andel J.,
Wesselingh R. A.,
Van Donk H. J.
Publication year - 1988
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1988.tb02124.x
Subject(s) - biology , extinction (optical mineralogy) , regeneration (biology) , statistics , solanum nigrum , demography , mathematics , horticulture , sociology , genetics , paleontology
SUMMARY Knowledge of minimum conditions for regeneration is of particular importance in estimating chances of survival and recovery of small, declining populations. In this paper, the performance of seed families from individual parents of Phyteuma nigrum are determined in order to investigate their potential for regeneration. It is argued that a low mean performance and a low level of variability of seed families may be of minor importance in large populations, but critical in small ones.