The Life History and Population Dynamics of Shoots of Carex Rostrata

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Abstract
The life history and population dynamics of shoots of C. rostrata Stokes were studied at a site in New York [USA]. Most shoots emerge between July and Nov., overwinter, grow still taller the next summer, again overwinter and subsequently flower and die by early Aug. in their 2nd yr. Some shoots emerge in spring and live for about 15 mo. A 2-yr life span is the maximum possible, but few shoots survive for that period of time. Mortality occurred at a relatively constant rate during the 2nd yr of life; only 17% survived to reproduce by seed. Shoot turnover is extremely high. The implications for studies on primary productivity are noted.

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