Evolutionary ecological analysis of adaptation strategies of rodent populations under extreme conditions

Adaptive strategies of cyclomorphic rodent populations (Rodentia) under extreme conditions of droughts (in 1975 and 2010) have been analyzed on the basis of functional–ontogenetic approach. The following features of these strategies have been revealed: minimization of metabolic processes, block of s...

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Bibliographic Details
Published in:Russian journal of ecology 2016-09, Vol.47 (5), p.486-492
Main Authors: Olenev, G. V., Grigorkina, E. B.
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Drought
Ecology
Environment
Evolution & development
Habitats
Life Sciences
Rodentia
Rodents
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Summary:Adaptive strategies of cyclomorphic rodent populations (Rodentia) under extreme conditions of droughts (in 1975 and 2010) have been analyzed on the basis of functional–ontogenetic approach. The following features of these strategies have been revealed: minimization of metabolic processes, block of sexual maturation, intergenerational crossing, prolongation of breeding period, and species-specific features in the dynamics of intrapopulation processes. Profound changes in the level of long-term oscillations of abundance after the drought have been noted in different species. Evidence is provided for the possibility of extremely rapid population rearrangements on an evolutionary scale that are fixed in a series of generations.
ISSN:1067-4136
1608-3334
DOI:10.1134/S106741361605009X