Hogyan befolyásolja a beporzók ritkulása a mezőgazdasági hozamokat a világban és Magyarországon?
Absztrakt
Az elmúlt két évtized egyre gyakrabban emlegetett problémája a beporzók egyedszámának és sokféleségének csökkenése. Míg e jelenség tényét illetően igen nagy az egyetértés a szakirodalomban, a csökkenés mezőgazdaságra gyakorolt hatásának mértéke vitatott. Vagyis nem tudjuk pontosan, mennyire függ a világ mezőgazdasága a beporzástól, mint ökoszisztéma szolgáltatástól. Cikkünkben áttekintjük azokat a kutatási eredményeket, amelyek a beporzók megritkulásának a mezőgazdaságra gyakorolt hatásáról szólnak. Ezek alapján mind globálisan, mind pedig Magyarország esetében megállapíthatjuk, hogy noha az élelmiszer-össztermelés szempontjából legfontosabb haszonnövényeinket nem állatok porozzák be, sok, a kiegyensúlyozott és egészséges táplálkozáshoz fontos termény esetében nélkülözhetetlenek, de legalábbis terméscsökkenéshez vagy minőségromláshoz vezet a hiányuk.
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