I have worked in nature conservation for nearly 40 years, starting my career on St Kilda and have lived and worked in the Cairngorms since 1986. I have always been fascinated by changes to the landscape and the role that photography plays in documenting and explaining these changes.

In my 2005 Churchill Fellowship I met the relatively few practitioners of the time and discussed with them, the processes and the potential for wider application. In the years since, the increased use of mobile phones and apps have improved the potential and the democracy of the process increasing opportunities to engage.

The informal global links I made during my Fellowship were later consolidated through papers submitted from all over the world, to Repeat Photography: Methods and Applications in the Natural Sciences (2010) a book led by colleagues at the United States Geological Survey.

In 2008, I enrolled for a part-time PhD study at the University of Aberdeen. My thesis was based on my Fellowship experiences and entitled ‘Photography & Rephotography: Repetition and Places in Time’. I graduated in 2016.

More recently, during the first lockdown and like many others, I sought rhythm and regularity in a disrupted life, by making repeat photographic studies of my view, each day. It was great to find others doing the same and to note the satisfaction found in the simple exploration of time and space.

I curate the hashtags #rephotography and #aspectsofrephotography on Twitter, where you can find lots of examples.