The Avon Atlas 2007-11 summarises the work of some 530 observers in the 17 hectads of the Avon BTO area between 2007 and 2011. All 403 tetrads were surveyed, the majority for four hours in summer and four in winter. Avon Atlas 2007-11 compares the results with the previous breeding Atlas in 1992 and the winter Atlas in 1986. Detailed statistics are presented on density in different habitats based on the concept of the observed rate per hour.
There are currently no reviews for this product. Be the first to review this product!
Your orders support book donation projects
NHBS is a national institution, not to say an international one, in the world of natural history!
Search and browse over 110,000 wildlife and science products
Multi-currency. Secure worldwide shipping
Wildlife, science and conservation since 1985