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Reproduction in polemonium a 5 year study of seed production and implications for competition for pollinator service



Reproduction in polemonium a 5 year study of seed production and implications for competition for pollinator service



Oikos 42(2): 225-228



Conditions necessary for intraspecific competition for pollinator service, but not intraspecific competition itself, were previously reported for a population of P. foliossisimum Gray. As in most recent work of this sort, this conclusion was based in part on seed set differentials among individuals as well as between control and hand-pollinated flowers. Such differentials, when found for a single flowering season in perennial plants, can be misleading. Stored reserves might be drawn upon 1 season at the expense of the reproductive potential of later years negating an apparent reproductive increase. A 5 yr study of seed set and flower production in a P. foliosissimum population indicates that no such reproductive tradeoff is occurring. Available information is consistent with the contention that intraspecific competition for pollinator service may have taken place and thus supports conclusions drawn from short term studies on P. foliosissimum.

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Accession: 006315719

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Reproduction in Polemonium: A Five Year Study of Seed Production and Implications for Competition for Pollinator Service. Oikos 42(2): 225-228, 1984

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