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Contemporary Problems of Ecology

2009 year, number 1

Plants and Birds Coast of the Okhotsk Sea: Equilibrium, Crisis, Adaptations

M. G. Khoreva, O. A. Mochalova
Keywords: vegetation, marine colonial birds, ornitogenic action, variety, adaptation, biomorphology
Pages: 119-125

Abstract

The problems concerning mutual relations of the sea colonial birds and plants on the northern coast of the Okhotsk sea are considered. The birds form huge flocks on small islands thus transforming the island landscape and forming specific vegetation in nesting sites. Depending on the intensity of ornithogenic load, different relations between the productivity of plant communities and their species richness are observed. As a rule, flora depletion occurs. Specific ecobiomorphs are formed for the plants which are prosperous at rookeries as a response to the intensive action of birds. On the islands of the northern part of the Okhotsk sea, hummocky gramineous plants represented by pine purple grass existing on the majority of nesting colonies are of the highest significance.