Abstract:
:It is illustrated theoretically that in a heterogeneous habitat the dispersal of individuals, even when it is random and density-independent, may have a pronounced effect of raising the average reproductive rate of the whole population, in addition to the effect of stabilization in the usual sense of reducing its variance. This implies that in such a population the habitat instability has been converted by dispersal into a condition profitable for the population. The role played by dispersal here is therefore regarded as much more positive than that which the expression 'spreading of risk' usually means.
journal_name
Oecologiajournal_title
Oecologiaauthors
Kuno Edoi
10.1007/BF00376909subject
Has Abstractpub_date
1981-05-01 00:00:00pages
123-126issue
1eissn
0029-8549issn
1432-1939pii
10.1007/BF00376909journal_volume
49pub_type
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