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Positive versus negative interactions in a high alpine block field: Germination of Oxyria digyna seeds in a Ranunculus glacialis community

Moen, J.

Arctic and Alpine Research 25(3): 201-206

1993


DOI: 10.2307/1551814
Accession: 002925423

Positive interactions within species aggregations have been suggested as particularly important for increasing germination and survival probabilities of plants in the adverse environment of high alpine block fields. One often-cited example is the elevated temperature and moisture levels in cushion plants, which increases the probability of germination as compared with open ground situations. However, it is not clear how this applies to plant communities with more erect species.

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