What Would Be the Most Likely Effect of Removing the Blue

question 22

Multiple Choice

What would be the most likely effect of removing the blue tit from the Phragmites australis ecosystem?

• A) An increase in the populations of Aprostocetus gratus and Platygaster cf. quadrifarius and a decrease in the number of small Giraudiella inclusa gall clusters
• B) An increase in the populations of Aprostocetus orithyia, Eudecatoma stagnalis, Eurytoma crassinervis, and Platygaster szelenyii and a decrease in the number of small and large Giraudiella inclusa gall clusters
• C) A decrease in the populations of Aprostocetus calamarius and Torymus arundinis and a decrease in the number of large Giraudiella inclusa gall clusters
• D) An increase in the populations of Aprostocetus calamarius and Torymus arundinis and an increase in the number of large Giraudiella inclusa gall clusters

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