Impact of habitat fragmentation on plant populations pollination and mating systems of native plants population and conservation genetics of plants

Email Tanya

+61 8 9219 9096

+61 8 9334 0327
Street Address
17 Dick Perry Avenue, Technology Park, Western Precinct, Kensington WA 6151, Australia
Postal Address
Locked Bag 104, Bentley Delivery Centre WA 6983, Australia


I am a Research Scientist in the Science Division.

My current project is to research the effects of landscape configuration on gene flow among the very fragmented populations of a bird-pollinated Banksia species in the WA wheatbelt. The aim of this project is to develop an understanding of the way that the relative position of population remnants in the landscape can affect inter-population gene flow, and hence the genetic health, reproduction and long-term persistence of fragmented plant populations. This understanding will help with the development of guidelines for the coordinated management of multiple populations, the strategic positioning of revegetation efforts, and the prioritization of bush remnants for conservation.


  • Population and conservation genetics of plants
  • Pollination and mating systems of native plants
  • Impact of habitat fragmentation on plant populations

Brief CV


PhD University of Wollongong, 2004
Thesis: Conservation Genetics and Ecology of two rare Grevillea species.

B.Sc. (Hons) University of Western Australia, 1992. Majoring in Botany and Zoology.
Honours thesis: Effects of the breeding system on the population genetics of the slipper limpet Hipponix conicus.

Positions held

2006 - present: Research Scientist, Department of Environment and Conservation

2004 - 2005: Flora Conservation Officer, WA Department of Conservation and Land Management

1993 - 1995: Research Assistant, Department of Biological Sciences, University of Wollongong

Membership of professional societies

  • Ecological Society of Australia
  • Australasian Pollination Ecologists Society


Investigation of the effects of landscape configuration on vegetation function in fragmented Australian biomes. This research project is part-funded by Land and Water Australia.

Publications (17)

Departmental Publications (17)

Found 17 items


Llorens TM, Tapper S-L, Coates DJ, McArthur S, Hankinson M, Byrne M (2017). Does population distribution matter? Influence of a patchy versus continuous distribution on genetic patterns in a wind-pollinated shrub. Journal of Biogeography 44, pp. 361–374


Llorens TM, Macdonald B, McArthur S, Coates DJ, Byrne M (2015). Disjunct, highly divergent genetic lineages within two rare Eremophila (Scrophulariaceae: Myoporeae) species in a biodiversity hotspot: implications for taxonomy and conservation. Biological Journal of the Linnean Society 177, pp. 96–111

Llorens TM, McArthur S, Gardner MG, Coates DJ, Byrne M (2015). Isolation and characterisation of microsatellite markers for the dwarf sheoak, Allocasuarina humilis (Casuarinaceae), an important understorey species in ecological restoration. Muelleria 34, pp. 59–62

Nistelberger HM, Coates DJ, Llorens TM, Yates CJ, Byrne M (2015). A cryptic genetic boundary in remnant populations of a long-lived, bird-pollinated shrub Banksia sphaerocarpa var. caesia (Proteaceae). Biological Journal of the Linnean Society 115, pp. 241–255


Coates D, Byrne M, Bradbury D, Llorens T, Millar M (2014). Incorporating genetic diversity and evolutionary processes into plant conservation policy and management: a Western Australian perspective (ABSTRACT). In APCC10, 10th Australasian Plant Conservation Conference, 2014: Conference Program & Abstracts: Tuesday 11th November-Friday 14th November 2014, The Old Woolstore Apartment Hotel, Hobart, Tasmania p. 21

Llorens T (2014). Shape matters too!. Western Wildlife: Newsletter of the Land for Wildlife Scheme 18(2), pp. 1–2


Llorens T, Byrne M, Yates C, Nistelberger H, Coates D (2013). Plant mating patterns change with different aspects of habitat fragmentation. Available at 69/2013, 2 p.

Llorens T, Byrne M, Yates C, Nistelberger H, Coates D (2013). Remnant shape strongly influences reproduction and progeny fitness in fragmented populations. Available at 70/2013, 2 p.

Llorens TM, Yates CJ, Byrne M, Nistelberger HM, Williams MR, Coates DJ (2013). Complex interactions between remnant shape and the mating system strongly influence reproductive output and progeny performance in fragmented populations of a bird-pollinated shrub. Biological Conservation 164, pp. 129–139


Byrne M, Sampson J, Llorens T, Coates D, Yates C, Gibson N (2012). Patterns of pollination in woody plants in fragmented landscapes of south-west Western Australia (ABSTRACT). In Conference Handbook: Ecological Society of Australia, 2012 Annual Conference, Ecology: Fundamental Science of the Biosphere: 3-7 December 2012, the Sebel Albert Park, Melbourne, Victoria p. 71

Llorens T, Yates C, Byrne M, Nistelberger H, Williams M, Coates D (2012). Linear population shape reduces ecological and genetic function in a bird-pollinated plant (ABSTRACT). In Society for Ecological Restoration Australasia Conference: Perth, Western Australia, Australia, 28-30 November 2012: Program and Conference Abstracts p. 69

Llorens TM, Byrne M, Yates CJ, Nistelberger HM, Coates DJ (2012). Evaluating the influence of different aspects of habitat fragmentation on mating patterns and pollen dispersal in the bird-pollinated Banksia sphaerocarpa var. caesia. Molecular Ecology 21, pp. 314–328


Llorens T, Nistelberger H, Byrne M, Coates D, Yates C (2009). Fine scale genetic structure and gene flow in Banksia sphaerocarpa var. caesia in the fragmentated agricultural landscape of south-western Australia (ABSTRACT). In GSA 2009: Brisbane, 7-10 July: Programme and Abstracts p. 19

Nistelberger HM, Llorens TM, Byrne M (2009). Isolation and characterization of microsatellites in the woody shrub, Banksia sphaerocarpa var. caesia (Proteaceae). Molecular Ecology Resources 9, pp. 148–149

Young A, Broadhurst L, Elliot C, Field D, Coates D, Byrne M et al. [Yates C, Llorens T, Nistleberger H] (2009). Land & Water Australia project CPI 13: Molecular analysis of vegetation function in fragmented Australian biomes. CSIRO Plant Industry, Canberra. 36 p.


Llorens TM, Coates DJ, Byrne M, Yates CJ (2007). Assessing genetic connectivity across a fragmented landscape (POSTER ABSTRACT). In ESA 2007, Program and Abstracts: Perth Convention and Exhibition Centre, Perth, Australia, 2007, Monday 26th November to Friday 30th November 2007 p. 199


Simmons LW, Llorens T, Schinzig M, Hosken D, Craig M (1994). Sperm competition selects for male mate choice and protandry in the bushcricket, Requena verticalis (Orthoptera: Tettigoniidae). Animal Behaviour 47, pp. 117–122