Friday 21 September 2012

Nocturnal activity


Badgers are relatively common, though seldom seen, around the university. At this time of year you are very unlikely to see a badger in daylight but they are still very active at night. In September and October they spend more of their time than usual collecting bedding to take down into their setts, in preparation for winter. They also increase their feeding rates to put on sufficient fat to survive the winter.



The photo above was taken on an infra-red, motion triggered camera that is being used to monitor wildlife around the Durham campus.

Thursday 13 September 2012

First and last of the summer butterflies?

After an especially dreary summer for butterflies across the university estate, the better weather of the last couple of weeks produced a flurry of last minute activity, albeit with species occurring in very low numbers compared to most years. The wet summer has caused large population declines in the commoner butterflies such as Peacock and Small Tortoiseshell (below), which can usually be seen in good numbers on Buddleia plants around the botanic gardens.

Small Tortoiseshell (Photo: Steve Willis)
Late flying second and third brood butterflies started to emerge in late August and include recently emerged Comma, Speckled Wood (below) and Peacock; the former two only having colonised Durham from further south in recent decades in response to changing climate.

Speckled Wood (Photo: Steve Willis)