Derek Gruar

Senior Research Assistant, Conservation Science

Background

Since childhood I have had a lifelong passion for natural history, this interest lead me to graduate with a BSc(Hons.) in Applied Biology from Staffordshire University in 1994.

Since 1996, I have worked on a number of projects for the RSPB Centre for Conservation Science originally looking at a declining population of farmland song thrushes in Essex. Subsequently I have worked on an array of both farmland and woodland research projects focusing on determining factors for species declines.

My main research interests are long term monitoring of populations, demography of declining species, response of species to habitat changes, use of technology to track birds, dietary analysis by faecal analysis.

I am currently based at RSPB Hope Farm, Cambridgeshire. Here I conduct the day to day biological monitoring and collect data on responses to changes in farm management on birds, pollinators and also more recently soil condition.

Contact

Derek Gruar

Derek Gruar

Senior Research Assistant, Conservation Science

The Lodge, Potton Road, Sandy, Bedfordshire, SG19 2DL

derek.gruar@rspb.org.uk

Research Gate

Google Scholar

Specialisms

Agriculture Ecosystem services New methods and technologies UK species Woodland

Selected Publications

Summer diet and body condition of song thrushes Turdus philomelos in stable and declining farmland populations

Summer diet and body condition were compared in two farmland Song Thrush Turdus philomelos populations in south-east England. One population on mixed farmland was stable and the other on arable farmland...

Date
01 January 2003
RSPB Authors
Derek Gruar, Dr Will Peach
Authors
Gruar, D. and colleagues
Published in
Ibis
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Song thrush England Agriculture UK species

Summer utilization of oilseed rape by reed buntings Emberiza schoeniclus and other farmland birds

Oilseed Rape was the preferred breeding season habitat for Reed Buntings on arable farmland and reduced this species' dependence on wet features. To identify preferred breeding

Date
01 January 2006
RSPB Authors
Derek Gruar, Dr Will Peach
Authors
Gruar, D., Barritt, D. & Peach, W.J.
Published in
Bird Study
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Reed bunting England Agriculture UK species

Habitat selection by song thrushes in stable and declining farmland populations

Losses of farmland birds from the wider countryside have become a major conservation issue in the UK and Europe. Song thrush Turdus philomelos populations in lowland rural Britain declined by approximately...

Date
07 April 2004
RSPB Authors
Derek Gruar, Dr John Mallord, Dr Will Peach
Authors
Peach, W.J., Denny, M., Cotton, P.A., Hill, I.F., Gruar, D., Barritt, D., Impey, A. & Mallord, J.
Published in
Journal of Applied Ecology
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Song thrush England Agriculture UK species

Characteristics of woods used recently and historically by lesser spotted woodpeckers

Lesser Spotted Woodpecker Dendrocopos minor numbers have declined greatly in England since the early 1980s for reasons that are not yet fully understood. It has been suggested that the species' decline...

Date
25 March 2010
RSPB Authors
Derek Gruar, Stephen Dodd
Authors
Charman, E.C., Smith, K.W., Gruar, D.J., Dodd, S. & Grice, P.V.
Published in
Ibis
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Lesser spotted woodpecker England UK species Woodland

Can hedgerow management mitigate the impacts of predation on songbird nest survival?

Nest predators can have significant impacts on songbird reproductive success. These impacts may be amplified by habitat simplification and here we test whether sympathetic management of farmland hedgerows can reduce nest...

Date
01 December 2016
RSPB Authors
Dr Jenny Dunn, Derek Gruar, Dr Will Peach
Authors
Dunn, J.C., Gruar, D., Stoate, C., Szczur, J. & Peach, W.J.
Published in
Journal of Environmental Management 184: 535-544.
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UK Agriculture UK species