Population monitoring
Populations in the landscapes were monitored by taking three photos in quick succession of each habitat patch once every week. These pictures were then used to count individuals within each patch using Fiji software (Schindelin et al. 2012), a background subtraction method to determine which individuals are alive by comparing which have moved between the three photos (Mallard et al. 2013). Due to limitation in the quality of the photos taken we were only able to count individuals larger than 0.2mm in length, equal approximately to the size of individuals at eclosion (Johnson and Wellington 1983).