Avtor UR | Foto: stock.adobe.com 9:50 dop OKOLJE

Nekoč smetišče, danes dom večine populacije redke ptice

Območje, kamor so nekoč odlagali material, izkopan iz Manchestrskega ladijskega kanala, je danes eno najpomembnejših mokrišč za ptice v Veliki Britaniji.

V naravnem rezervatu Woolston Eyes danes gnezdi kar 64 odstotkov britanske populacije črnovratega ponirka.

Woolston Eyes v angleški grofiji Cheshire je dober primer, kako hitro se lahko narava odzove, ko dobi nazaj primeren življenjski prostor. Območje nekdanjega odlagališča izkopanega materiala so v zadnjih letih postopoma spremenili v mozaik sladkovodnih površin, trstičja, vrbovja in travnikov.

Rezultati so izjemni predvsem pri črnovratem ponirku (Podiceps nigricollis), ki je v Veliki Britaniji redek gnezdilec. Woolston Eyes je že dolgo pomembno gnezdišče te vrste, po obnovitvenih ukrepih pa je njena populacija močno narasla.

Od 4 do 35 gnezdečih parov

Še leta 2023 so na območju zabeležili le štiri gnezdeče pare črnovratega ponirka. Leta 2025 jih je bilo že 35 – skoraj dve tretjini celotne britanske gnezdeče populacije te vrste.

stock.adobe.com

Pri obnovi, ki poteka od leta 2021, so med drugim uredili vodni režim in ustvarili gnezditvene otočke. Ti privabljajo rečne galebe, v bližini njihovih kolonij pa črnovrati ponirki lažje gnezdijo, saj galebi agresivno odganjajo potencialne plenilce.

Mokrišče danes ni pomembno le za ponirke

Na območju živijo tudi druge ogrožene oziroma redke vrste ptic, med njimi močvirska sinica, sivka in kobiličar.

»Narava uspeva, ko ji damo priložnost,« je ob uspehu projekta poudaril ekolog britanske organizacije RSPB Gavin Thomas.

Po njegovih besedah primer Woolston Eyes kaže, kaj je mogoče doseči z usmerjenimi ukrepi za obnovo življenjskih prostorov.

Zgodba nekdanjega odlagališča tako kaže tudi nekaj širšega: degradirana območja niso nujno za vedno izgubljena. Z načrtno obnovo lahko ponovno postanejo življenjski prostor – in v tem primeru celo eno najpomembnejših zatočišč za redko vrsto v državi.

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