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    Author(s): Daniel T. Jennings; Frank Jr. Graham
    Date: 2007
    Source: Gen. Tech. Rep. NRS-16. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 204 p.
    Publication Series: General Technical Report (GTR)
    Station: Northern Research Station
    PDF: View PDF  (1.19 MB)

    Description

    An inventory or spiders associated with diverse habitats of Milbridge, a 6,290-ha area of the East Coastal BioPhysical Region, yielded 6,979 individuals of 19 families, 145 genera, and 302 species (4 unknown). Species richness per genus ranged from 1 to 13, with 88 genera represented by a single species. Total species composition favored web spinners over hunters; however, more hunters were collected than web spinners, and more females were collected than males. Pitfall traps yielded the greatest number of species and individuals; fully 47 percent of the inventoried spiders were method-unique species. Species-faunal compositions were generally distinct among the sampled habitats and included habitat-unique species. Species-range extensions include new state, regional, and national records. The total estimated araneofaunal richness for Milbridge is 24 families, 172 genera, and ~ 411 species.

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    Citation

    Jennings, Daniel T.; Graham, Frank Jr. 2007. Spiders (Arachnida: Araneae) Of Milbridge, Washington County, Maine. Gen. Tech. Rep. NRS-16. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 204 p.

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    Keywords

    spider faunal inventories, species richness, sampling methods, spider-habitat associations, method-unique species, habitat-unique species, invasive species, estimated faunal richness

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