. Il campo Canadese-naturalista. 440 Il canadese Field-Naturalist Vol. 101 Dimensioni della frizione di Blanding la tartaruga, Emydoidea blandingi, in Massachusetts Joseph A. DePari,' Madeleine H. Linck,2 e Terry E. Graham Dipartimento di naturale e scienze della terra, Worcester College di Stato, Worcester, Massachusetts 01602 'presente indirizzo: Dipartimento di Scienze Biologiche, Rutgers University, Newark, New Jersey 07102 'presente indirizzo: 1762 Morgan Road, Lungo Lago, Minnesota 55356 DePari, Joseph A., Madeleine H. Linck, e Terry E. Graham. 1987. Dimensioni della frizione di Blanding la tartaruga, Emydoidea blandingi, in M

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. The Canadian field-naturalist. 440 The Canadian Field-Naturalist Vol. 101 Clutch Size of the Blanding's Turtle, Emydoidea blandingi, in Massachusetts Joseph A. DePari, ' Madeleine H. Linck, 2 and Terry E. Graham Department of Natural and Earth Sciences, Worcester State College, Worcester, Massachusetts 01602 'Present address: Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102 'Present address: 1762 Morgan Road, Long Lake, Minnesota 55356 DePari, Joseph A., Madeleine H. Linck, and Terry E. Graham. 1987. Clutch Size of the Blanding's Turtle, Emydoidea blandingi, in Massachusetts. Canadian Field-Naturalist 101(3): 440-442. Clutch size of large Blanding's Turtles, Emydoidea blandingi, in eastern Massachusetts ranges from 9 to 17 (mean 13.0 ± SD 1.8, n = 21). There is no significant correlation between clutch size and female size for 17 females with plastron lengths >200 mm. Key Words: Emydoidea blandingi, Blanding's Turtle, Clutch size, reproduction, Massachusetts. Significant contributions to our knowledge of the ecology of the Blanding's Turtle, Emydoidea blandingi, have been made recently by Gibbons (1968), Graham and Doyle (1977, 1979), Congdon et al. (1983), and Baker and Gillingham (1983). This paper provides additional data on clutch size of the Blanding's Turtle from Massachusetts. Clutch size data for the Blanding's Turtle were obtained during a field study conducted from April 1980 to June 1984 at the Great Meadows National Wildlife Refuge in Concord, Middlesex County, Massachusetts (42°28'30"N; 71°20'W). A description of the study area, located 24 km northwest of Boston and 3.2 km north of Concord center, is provided by Graham and Doyle (1977). Clutch size was determined by X-ray photography (mean 12.1+SD2.4, n = 6 clutches) using a modification of the method of Gibbons and Greene (1979) and by excavation of natural nests and nests constructed in captivity by wild-caught females (mean 13.2 ±SD 1.1, n=14 clutches from 1

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