geographic variation

Mycotoxin tolerance affects larval competitive ability in Drosophila recens (Diptera: Drosophilidae)

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Researchers studied fruit flies that can tolerate mushroom poisons to see if this ability comes with a cost. They found that flies with high poison tolerance from one geographic location showed delayed development and lower survival rates when competing with other larvae, but this effect was not seen in flies from another location. This suggests that the cost of tolerating poisons depends on where the flies are from.

Chemical Composition, Bioactive Compounds, and Antioxidant Activity of Two Wild Edible Mushrooms Armillaria mellea and Macrolepiota procera from Two Countries (Morocco and Portugal)

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This study compared two edible wild mushrooms (honey fungus and parasol mushroom) from Morocco and Portugal to understand their health benefits. Both mushrooms were found to be rich in compounds with antioxidant properties that help protect cells from damage. The research shows that where mushrooms grow—whether in Morocco or Portugal—affects their chemical makeup and healing potential, with Moroccan honey fungus showing particularly strong antioxidant power.