The birds of Pasvik / E. I. Khlebosolov, O. A. Makarova, O. A. Khlebosolova [et al. ; English transl. Nikita Chernetsov]. - Ryazan : Golosgubernii, 2007. - 175 с. : ил., портр.

Ph.p. G.g. G.m. 5 Figure 2.9. Spatial distribution o f waders which inhabit humm ock-ridge raised bogs. P.a. — G reater G olden Plover, N .ph. — Whimbrel, Т.п. — C omm on G reenshank, T.g. — Wood Sandpiper, T.e. - Spotted Redshank, Ph.p. — Ruff, G.g. — C omm on Snipe, G .m . - Jack Snipe. 1 - peat tussocks, 2 —sedge tussocks, 3 —small lakes, 4 —hollows, 5 —m ire, 6 —pine stand. Waders of swamps T h e la rg e st g ro u p o f sh o re b ird s a re th e w a d e rs th a t in h a b it sw am p s in th e Pasvik valley. T h e larg est sp e c ific d iv e rsity o f s h o r e b ird s is fo u n d in larg e w et sw am p s o f rid g e -h u m m o c k a n d s e d g e -s p h a g n u m ty p e s. T h e s e w e tla n d s a re c h a r a c ­ te rise d by a larg e d iv ersity o f e n v ir o n m e n t a n d a llow c o - e x is te n c e o f w a d e rs th a t o c c u p y d iffe re n t e c o lo g ic a l n ic h e s (F ig . 2 .9 ). L arg e b re e d in g a s s o c ia tio n s o f w a d e rs from d iffe re n t ta x o n o m ic a n d e c o lo g ic a l g ro u p s a re fr e q u e n tly fo rm e d th e re . 98