Calcareous grassland (or alkaline grassland) is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous grassland are typically short and hardy, and include grasses and herbs such as clover. Calcareous grassland is an important habitat for insects, particularly butterflies, and is kept at a plagioclimax by grazing animals, usually sheep and sometimes cattle. Rabbits used to play a part but due to the onset of myxomatosis their numbers decreased so dramatically that they no longer have much of a grazing effect.
- Gibson, C.W.D. (1995). Chalk grasslands on former arable land: a review. Bioscan (UK) Ltd, Oxford.
- Gibson, C.W.D. & Brown, V.K. (1991). The nature and rate of development of calcareous grassland in southern Britain. Biological Conservation, 58, 297-316.
- Hillier, S.H., Walton, D.W.H. & Wells, D.A. (Eds.) (1990). Calcareous grasslands - ecology and management. Bluntisham, Huntingdon.
- Price, Elizabeth (2002), Grassland and heathland habitats, New York: Routledge, p. 208, ISBN 0-415-18762-1
- Smith, C.J. (1980). The Ecology of the English Chalk. Academic Press, London.
- Windrum, Andrew (June 1997). "Lincolnshire and Rutland Limestone ( NA38)" (PDF). Natural Areas. English Nature. Retrieved 22 June 2014.
- Bland ford, Chris. "BIODIVERSITY OPPORTUNITY MAPPING STUDY FOR CENTRAL LINCOLNSHIRE" (PDF). Greater Lincolnshire Nature Partnership. Retrieved 22 June 2014.
|Wikimedia Commons has media related to Calcareous grassland.|