Allegheny Portage Railroad National Historic Site (open)
Basic information
Sample name: Allegheny Portage Railroad National Historic Site (open)
Reference: G. S. Keller and R. H. Yahner. 2002. Butterfly communities in two Pennsylvania national parks. Northeastern Naturalist 9(2):235-242 [ER 827]
Geography
Country: United States
State: Pennsylvania
Coordinate: 41° 31' N, 78° 24' W
Latlng basis: based on nearby landmark
Geography comments: "10 km west of Altoona" (basis of coordinate)
elevation 346 to 734 m
elevation 346 to 734 m
Environment
Habitat: temperate broadleaf/mixed forest
Substrate: ground surface
WMT: 23.4
CMT: -0.5
MAP: 954.0
Habitat comments: "deciduous forest is the dominant cover type (76% of total area) and is composed mainly of mature northern hardwoods"
climate data based on station 72520 (Pittsburgh International Airport)
climate data based on station 72520 (Pittsburgh International Airport)
Methods
Life forms: butterflies
Sites: 1
Site length: 500.0
Site width: 20.0
Sampling methods: belt transect, visual
Sample size: 302 captures or sightings
Years: 1998
Net or trap nights: 0
Basal area status: not applicable
Sampling comments: Pollard walk with butterflies counted up to 10 m on either side of the transect
Metadata
Sample no: 1176
Contributor no: John Alroy
Enterer: John Alroy
Created: 2014-09-30 15:05:29
Modified: 2014-09-30 05:05:29
Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
18 species
5 singletons
total count 302
geometric series index: 30.1
Fisher's α: 4.196
geometric series k: 0.7763
Hurlbert's PIE: 0.8305
Shannon's H: 2.0848
Good's u: 0.9835
Register