Journal article
Population density and size influence pollen dispersal pattern and mating system of the predominantly outcrossed Banksia nivea (Proteaceae) in a threatened ecological community
Biological Journal of the Linnean Society, Vol.124(3), pp.492-503
2018
Abstract
Gene flow is a critical component of plant mating systems and influences population fitness. However, pollen dispersal can be highly variable and influenced by natural and anthropogenic fragmentation. Gene flow through pollen dispersal was investigated in two populations of contrasting size and habitat context in Banksia nivea ssp. uliginosa, a rare species in the Busselton ironstone threatened ecological community of Western Australia with a naturally fragmented distribution. Paternity analysis was conducted with seven microsatellite loci to determine mating system parameters and patterns of pollen dispersal. Outcrossing was high in both populations with a similar level of selfing for both populations despite differences in population size, density and vegetation matrix. Most mating occurred within 10 m of a mother plant in the small, clumped population, while more dispersed mating, up to 50 m from a mother plant, was recorded in the large, less dense population. Our results show that population density and size are important influences on mating system parameters and level of pollen dispersal.
Details
- Title
- Population density and size influence pollen dispersal pattern and mating system of the predominantly outcrossed Banksia nivea (Proteaceae) in a threatened ecological community
- Authors/Creators
- R. Thavornkanlapachai (Author/Creator) - Murdoch UniversityP.G. Ladd (Author/Creator) - Murdoch UniversityM. Byrne (Author/Creator) - Murdoch University
- Publication Details
- Biological Journal of the Linnean Society, Vol.124(3), pp.492-503
- Publisher
- Blackwell Publishing Inc.
- Identifiers
- 991005540346307891
- Copyright
- © 2018 The Linnean Society of London
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.64 Phylogenetics & Genomics
- 3.64.71 Genetic Diversity
- Web Of Science research areas
- Evolutionary Biology
- ESI research areas
- Plant & Animal Science