Pollen limitation, 2-86 individuals, 12.6m Seed production lower in small populations, isolation and Brunsvigia Grasslands, South demographic ) median radius, separated fragment size did not influence seed production. Reduced radulosa, Africa structure, seed by at least 400 meters seed production was a result of pollen limitation. production, recruitment plant density on pollination, Pollination and recruitment increased with density (allee Echinacea ) fragmented prairie population size effect), mate compatibility increased with population size. angustifolia on mate Doubly affected by fragmentation through allee effect. availability 80-3000 individuals, dry non-acidic Genetic diversity lower in small populations, isolation did ) genetic diversity Filipendula vulgaris natural fragmentation grasslands, Denmark not matter, determined wind pollination was possible Diversity predicted seed set, reproductive success is Calystegia collina, limited by the availability of compatible pollen (abundant northern self-incompatible genetic diversity, California’s ) Natural fragmentation genotypes less likely to produce seed than rarer Coast Range clonal plant, seed set genotypes). Isolated outcrops had a diversity of unique endemic genotypes. genetic diversity Small populations with paternal bottlenecks, populations Rutidosis and mating ) grassland with fewer than 200 individuals higher outcrossed leptorrynchoides, system daisy paternity, inbreeding in small pops parameters Increased genetic drift and inbreeding have not yet led to 1.4-6.3 ha patches, at reduced genetic variation; however, six alleles had been ) Ontario, Canada genetic variation Acer saccharum least 400 m away lost in fragmented forests. Suspect generation time is responsible
) 2-86 individuals, 12.6m median radius, separated by at least 400 meters Grasslands, South Africa Brunsvigia radulosa, Pollen limitation, demographic structure, seed production, recruitment Seed production lower in small populations, isolation and fragment size did not influence seed production. Reduced seed production was a result of pollen limitation. ) fragmented prairie Echinacea angustifolia plant density on pollination, population size on mate availability Pollination and recruitment increased with density (allee effect), mate compatibility increased with population size. Doubly affected by fragmentation through allee effect. ) 80-3000 individuals, natural fragmentation dry non-acidic grasslands, Denmark Filipendula vulgaris genetic diversity Genetic diversity lower in small populations, isolation did not matter, determined wind pollination was possible ) Natural fragmentation northern California’s Coast Range Calystegia collina, self-incompatible clonal plant, endemic genetic diversity, seed set Diversity predicted seed set, reproductive success is limited by the availability of compatible pollen (abundant genotypes less likely to produce seed than rarer genotypes). Isolated outcrops had a diversity of unique genotypes. ) grassland Rutidosis leptorrynchoides, daisy genetic diversity and mating system parameters Small populations with paternal bottlenecks, populations with fewer than 200 individuals higher outcrossed paternity, inbreeding in small pops ) 1.4-6.3 ha patches, at least 400 m away Ontario, Canada Acer saccharum genetic variation Increased genetic drift and inbreeding have not yet led to reduced genetic variation; however, six alleles had been lost in fragmented forests. Suspect generation time is responsible
Plant_Guidance_030613.docx