Archive | July 2016

Wealden summer

Another quite damp and cool summer developing until recently, when warmer air arrived and there was a very hot day with over 32 C. recorded at Herstmonceux weather station.

The loamy clays and sandstones of the Weald react to rainfall and water levels in a way which affects the insect communities. Ground-nesting bees, wasps and flies find the wet conditions of loamy clay difficult to manage, although some species are better adapted. However, in periods of hot weather there is a differential drying effect of the topsoil and bedrock depending on the porosity of the material, with the fine particulate clays reacting differently to areas of hard but friable sandstone. Water bodies are located too by the shape of the land and position of streams and springs. Often plants associated with wet habitats grow alongside plants more adapted to dry soils.

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Hyloicus

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Pine Hawkmoth Hyloicus pinastri    St Leonards 22 July 2016