We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Stability of environment and of insect populations.
- Authors
Wolda, Henk; Spitzer, Karel; Lepš, Jan
- Abstract
Summary: The abundance of moths was monitored with light‐traps in two sites in southern Bohemia, České Budějovice for 22 years and in Černiš for 9 years. In these sites, that are vastly different in environmental stability and predictability, stability of insect populations was studied. The amplitude of fluctuations in abundance of the insect populations, as measured by the coefficient of variation (CV), varied a great deal between species so that there was a large overlap between the two sites. Nevertheless there was a highly significant tendency for species at Černiš, the more stable site, to have smaller values of CV, i.e., to be less fluctuating. Also in species co‐occurring in the two sites, the CV at Černiš tended to be smaller. Trends in abundance of individual species over time, both increases and decreases, were common in both sites and did not differ between habitats. Environmental stability begets insect population stability in terms of the amplitude of the fluctuations, but trends in time occur irrespective of stability of the habitat.
- Publication
Population Ecology, 1992, Vol 34, Issue 2, p213
- ISSN
1438-3896
- Publication type
Article
- DOI
10.1007/BF02514794