Small and surrounded: population size and land use intensity interact to determine reliance on autonomous selfing in a monocarpic plant.

ABSTRACT: Background and Aims:Habitat fragmentation has transformed landscapes globally, leaving remnants embedded within a complex matrix that is rapidly becoming more developed. For many plant populations, the associated factors of decreased size and intensification of land use surrounding them are expected to increase pollen limitation ('PL'), unless autonomous self-pollination provides reproductive assurance ('RA'). Decreased pollinator visitation is often assumed to drive these patterns, but other, less studied mechanisms might include increased heterospecific pollen transfer or decreased conspecific pollen availability via florivory. I investigate how PL and RA and their potential underlying mechanisms vary with population size and land use intensity surrounding populations in the biennial Sab

SUBMITTER: Spigler RB 

PROVIDER: S-EPMC5838805 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature