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Dr Orly Razgour

Dr Orly Razgour

Dr Orly Razgour
PhD(Bristol), MSc(Negev), BSc Hons(Kent)

NERC Advanced Research Fellow

Area of research

Conservation biology of the grey long-eared bat, Plecotus austriacus

Life Sciences Building,
24 Tyndall Avenue, Bristol BS8 1TQ
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+44 (0) 117 954 6386


The grey long-eared bat, Plecotus austriacus is one of the rarest and least studied English bat species. Yet the development of specific conservation management plans for the conservation of the grey long-eared bat has been hampered by lack of information on the behaviour, ecological requirements and phylogenetic affinities of the English population.

In my PhD research, I use an integrated approach to determine the ecological and conservation requirements of P. austriacus, in the context of factors that limit the distribution and abundance of locally rare but globally common species.

The project is divided into five parts, each addressing a different aspect of the ecology, behaviour, biogeography and genetics of P. austriacus, by employing a diversity of biological research methods including radio-tracking, microscopic diet analysis,molecular diet analysis, predictive present and future ecological niche modelling, phylogeographical analysis and a study of genetic population structure.

My objectives are:

1. Use habitat suitability modelling to map the potential distribution of P. austriacus in Britain and determine the ecogeographical variables that limit its distribution.

2. Predict the potential impact of future climate change on the distribution of P. austriacus in Britain and Europe.

3. Analyse the effect of reproductive condition on night activity patterns and the ranging behaviour of P. austriacus.

4. Relate patterns of foraging habitat selection to habitat loss and degradation due to urbanisation and agricultural intensification.

5. Describe the diet of P. austriacus in Britain.

6. Use molecular diet analysis to investigate the extent of dietary resource partitioning among cryptic bat species (P. austriacus and P. auritus).

7. Assess the phylogeography of the English P. austriacus population, its relation to European populations and historical patterns of colonisation and population expansion.

8. Determine the genetic population structure, effect of landscape elements on patterns of gene flow, extent of isolation of maternity colonies, and the genetic viability of the English P. austriacus population.


Research interests

I have dedicated the past ten years to biodiversity conservation and research. I aim to apply knowledge gained from the study of ecological and evolutionary processes to solving conservation problems. My research has focused on bats due to their high taxonomic and ecological diversity, their potential role as bio-indicators, and their great conservation need. My main research interests are conservation biology, landscape genetics, resource partitioning and community structure, and the ecological and evolutionary consequences of climate change and anthropogenic habitat modification.


Academic history

2009 - Present -  PhD at the University of Bristol - 'Conservation Biology of the Grey Long-Eared Bat, Plecotus austriacus'

2006 - 2008 -  M.Sc in Ecology, with Distinction, at Blaustein Institutes for Desert Research, Ben-Gurion University

2003 - 2006 -  B.Sc Hons in Biodiversity Conservation and Management, with Distinction, at DICE, University of Kent at Canterbury


Previous research

2007-2008 - M.Sc research project -  ‘Use of natural bodies of water by desert-dwelling insectivorous bats’  

I combined acoustic monitoring with filming and an experimental approach to research the effect of interspecific competition and resource partitioning on desert bat assemblages, as well as the importance of the size and permanency of open bodies of water for the maintenance of biodiversity in desert environments.

2005 - B.Sc research project - ‘Identifying areas for conservation using keystone species: bat diversity and abundance in the Lago Preto conservation concession, Peru’

The project involved a six week study of an Amazonian bat community, to research the effect of habitat complexity and plant diversity on tropical bat diversity and community structure.



  • Conservation biology
  • Interspecific interactions
  • Landscape genetics
  • Molecular ecology
  • Ecological modelling
  • Phylogeography


  • Species distribution modelling (Maxent)
  • radio-tracking
  • molecular diet analysis
  • population genetics
  • microsatellites




Recent publications

View complete publications list in the University of Bristol publications system

Networks & contacts

  • Funder: Hon. Vincent Weir Collaborators: Bat Conservation Trust

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