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Field Data for An Inventory of Terrestrial Mammals at National Parks in the Northeast Temperate Network and Sagamore Hill National Historic Site (NETN_SAHI_Database_Mammals_2007.mdb)

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 16, 2026 | Last Modified: 2007-01-01T00:00:00Z
An inventory of mammals was conducted during 2004 at nine national park sites in the Northeast Temperate Network (NETN): Acadia National Park (NP), Marsh-Billings-Rockefeller National Historical Park (NHP), Minute Man NHP, Morristown NHP, Roosevelt-Vanderbilt National Historic Site (NHS), Saint-Gaudens NHS, Saugus Ironwork NHS, Saratoga NHP, and Weir Farm NHS. Sagamore Hill NHS, part of the Coastal and Barrier Island Network (NCBN) was also surveyed. Every park, except for Acadia NP, was sampled twice, once in the winter/spring and again in the summer/fall. During the winter/spring visit, indirect measure (IM) sampling arrays were employed at 2-16 stations and included sampling by remote cameras, covered trackplates (i.e., cubby boxes), and hair traps. Indirect measure stations were established and re-used during the summer/fall sampling period. Trapping was conducted at 2-12 stations at all parks except Acadia NP during the summer-fall period and consisted of arrays of small mammal traps, squirrel-sized live traps, and some fox-sized live traps. A total of 38 species was detected by IM sampling, trapping, and field observations. Species diversity (i.e., number of species) varied among parks, ranging from 8-24, with Minute Man NHP having the most species detected. Raccoon (Procyon lotor), Virginia Opossum (Didelphis virginiana), Fisher (Martes pennanti), and Domestic Cat (Felis silvestris) were the most common medium-sized mammals detected in this study and White-footed Mouse (Peromyscus leucopus), Northern Short-tailed Shrew (Blarina brevicauda), Deer Mouse (P. maniculatus), and Meadow Vole (Microtus pennsylvanicus) the most common small mammals detected. All species detected are considered fairly common throughout their range including the Fisher, which has been reintroduced in several New England states. We did not detect any state or federal endangered or threatened species.

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