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Questions

This questiоn is аbоut Nikо Tinbergen's experiment аbout digger wаsp nest-locating behavior. Female digger wasps excavate underground nests and, after foraging, return to their nests daily to feed their larvae. Tinbergen wanted to know whether female digger wasps use visual cues, olfactory (scent) cues, or both cues to locate their nests. Visual test: Tinbergen placed a circle of pinecones around the entrances of several digger wasp nests and left them there for several days. Next, he moved the circle of pinecones 30cm away from the nest entrances and observed where the digger wasps flew when returning from foraging. Olfactory test: Tinbergen placed a circle of non-scented pinecones in a circle around the nest entrances and added pieces of cardboard coated with pine oil next to the pinecones, and left them there for several days. Next, he moved the pinecones 30cm away from the nests but left the scented cardboard in a circle around the nest entrances. Results of the visual test: The wasps returned from foraging and flew to the center of the pinecone circle instead of the real nest entrance. Results of the olfactory test: The wasps returned from foraging and flew to the center of the pinecone circle instead of the real nest entrance. Select the conclusion that Tinbergen drew based on these results.