Инд. авторы: | Novikov E.A., Panov V.V., Moshkin M.P. |
Заглавие: | Density-dependent regulation in populations of red-backed voles (Myodes rutilus) in optimal and suboptimal habitats of south-west Siberia |
Библ. ссылка: | Novikov E.A., Panov V.V., Moshkin M.P. Density-dependent regulation in populations of red-backed voles (Myodes rutilus) in optimal and suboptimal habitats of south-west Siberia // Журнал общей биологии. - 2012. - Vol.73. - Iss. 1. - P.49-58. - ISSN 0044-4596. |
Внешние системы: | PubMed: 22567967; WoS: 000301032800004; |
Реферат: | eng: In a population of red-backed voles (Myodes rutilus) that live in optimal habitats (mountain taiga of North-Eastern Altai) in the years of peak density we have observed total suppression of sexual maturation of young animals which is known to be the main mechanism of density regulation. Increase of voels' local density is accompanied by the increase of glucocorticoids in blood of mature and immature individuals of both sexes that argues for the important role of hypothalamic-pituitary-adrenal axis in density dependent regulation. Another population of red-backed voles from south-west Siberia that live in suboptimal habitats (Novosibirsk city vicinity), had significantly lower density. Here, the dynamics of demographic traits and endocrine status of the individuals did not correlate with interannual fluctuations of abundance and density. Even though, the possibility that in suboptimal conditions local density occasionally reaches the values sufficient for the induction of self-regulation cannot be excluded.
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Ключевые слова: | REPRODUCTION; STRESS; BANK VOLES; GLAREOLUS; CLETHRIONOMYS-RUTILUS; MICROTUS-PENNSYLVANICUS; IMMUNE-RESPONSE; |
Издано: | 2012 |
Физ. характеристика: | с.49-58 |