{ "item_title" : "The Structure and Dynamics of Geographic Ranges", "item_author" : [" Kevin J. Gaston "], "item_description" : "No species occurs everywhere. Indeed, the majority are absent from most places, and where they do occur they are usually quite rare. Gaston discusses the structure of these distributions - the structure of the geographic ranges of species. Gaston is particularly concerned with the factors that determine the limits to a species' geographic range, how the sizes of those ranges vary, and patterns in that variation. Also considered are the distribution of individuals amongst those sites where a species does occur and what determines that distribution, and some of the practical implications of all these. Both in a pure and applied context, ecologists need a broader perspective on their subject matter than has historically prevailed. This book provides one such perspective. A must have book for any researchers and graduate students studying macroecology, biogeography and conservation biology.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/0/19/852/641/0198526415_b.jpg", "price_data" : { "retail_price" : "89.00", "online_price" : "89.00", "our_price" : "89.00", "club_price" : "89.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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