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 9521

Facsimile
+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

Profile

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.


Expertise

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

Brief CV

ACADEMIC QUALIFICATIONS

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

Projects

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 (33)

Departmental Publications (33)

Found 33 items

2021

Silcock J, Collingwood T, Llorens T, Fensham R (2021). Action Plan for Australia?s Imperilled Plants 2020. NESP Threatened Species Recovery Hub, Brisbane. 342 p.

2020

Luu R, Barrett S, Llorens T (2020). Gastrolobium vestitum: interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 390, 22 p.

Luu R, Llorens T (2020). Conospermum galeatum: interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 389, 21 p.

Silcock J, Collingwood T, Llorens T, Fensham R (2020). Action Plan for Australia?s Imperilled Plants 2020. NESP Threatened Species Recovery Hub, Brisbane. 339 p.

2018

Brown AP, Llorens TM, Coates DJ, Byrne M (2018). Eremophila subangustifolia (Scrophulariaceae), a rare new species from the mid west region of Western Australia, with notes on E. microtheca. Nuytsia 29, pp. 17–20

Brown K, Collins J, Wege J, Huston B, Llorens T (2018). A protective partnership at Wandoo National Park. Landscope 33(3), pp. 25–27

Llorens TM, Yates CJ, Byrne M, Elliott CP, Sampson J, Fairman R et al. [Macdonald B, Coates DJ] (2018). Altered soil properties inhibit fruit set but increase progeny performance for a foundation tree in a highly fragmented landscape. Frontiers in Ecology and Evolution 6, pp. 1–16

Luu R, Butcher R, Llorens T (2018). Dwellingup synaphea (Synaphea stenoloba): interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 388, 31 p.

Luu R, Casson N, Llorens T (2018). Mallee box (Eucalyptus cuprea): interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 387, 26 p.

Luu R, Casson N, Llorens T (2018). Silky eremophila (Eremophila nivea): interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 386, 24 p.

Luu R, Llorens T (2018). Hypocalymma sylvestre: interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 384, 20 p.

Luu R, Wege J, Llorens T (2018). Quairading triggerplant (Stylidium coroniforme subsp. amblyphyllum): interim recovery plan. Department of Biodiversity, Conservation and Attractions, Western Australia, Interim Recovery Plan 385, 19 p.

2017

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

2015

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. Botanical 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

2014

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

2013

Llorens T, Byrne M, Yates C, Nistelberger H, Coates D (2013). Plant mating patterns change with different aspects of habitat fragmentation. Available at https://www.dpaw.wa.gov.au/about-us/science-and-research/publications-resources/111-science-division-information-sheets. 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 https://www.dpaw.wa.gov.au/about-us/science-and-research/publications-resources/111-science-division-information-sheets. 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

2012

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

2009

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.

2007

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

2004

Llorens TM, Ayre DJ, Whelan RJ (2004). Evidence for ancient genetic subdivision among recently fragmented populations of the endangered shrub Grevillea caleyi (Proteaceae). Heredity 92, pp. 519–526

1997

Ayre DJ, Davis AR, Billingham M, Llorens T, Styan C (1997). Genetic evidence for contrasting patterns of dispersal in solitary and colonial ascidians. Marine Biology 130, pp. 51–61

1994

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

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

1993

Simmons LW, Craig M, Llorens T, Schinzig M, Hosken D (1993). Bushcricket spermatophores vary in accord with sperm competition and parental investment theory. Proceedings of the Royal Society of London. Series B 251, pp. 183–186