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|Research Focus Is pollen limited? The answer is blowin' in the wind
 

Summary: |Research Focus
Is pollen limited? The answer is blowin' in the wind
Walter D. Koenig1
and Mary V. Ashley2
1
Hastings Reservation, University of California, Berkeley, 38601 E. Carmel Valley Road, Carmel Valley, CA 93924, USA
2
Department of Biological Sciences, University of Illinois at Chicago, M/C 066, 845 West Taylor Street, Chicago, IL 60607, USA
Pollen from wind-pollinated trees has traditionally been
assumed to be abundant and to travel long distances,
resulting in extensive gene flow. However, recent
empirical work by Knapp et al., genetic analysis by Sork
et al., and theoretical models by Satake and Iwasa con-
clude that short-distance dispersal of limited pollen
might be common and play an important role in caus-
ing the highly variable seed production (masting) fre-
quently observed in such species. Pollen movement
might be sufficiently restricted that increased fragmen-
tation could ultimately bring about reproductive failure
in some species.

  

Source: Ashley, Mary V. - Department of Biological Sciences, University of Illinois at Chicago

 

Collections: Biology and Medicine; Environmental Sciences and Ecology